Best B2B Data Providers & Sales Intelligence Tools [2026]

Best B2B Data Providers & Sales Intelligence Tools [2026]

Updated April 2026 — The definitive ranked guide to the best B2B data providers and sales intelligence platforms, with pricing, data quality assessments, limitations, and honest reviews to help you choose the right tool for your outbound motion

Your outbound sales engine is only as good as the data feeding it. Send sequences to bad emails and you torch your domain reputation. Target the wrong accounts and your SDRs burn hours chasing companies that will never buy. Rely on stale data and your pipeline projections collapse the moment reps start making calls.

The B2B data provider market has exploded over the past three years. What was once a two-horse race between ZoomInfo and LinkedIn Sales Navigator is now a crowded landscape of contact databases, intent data platforms, enrichment APIs, and AI-powered sales intelligence tools — each claiming to have the most accurate data and the largest database.

I am Jamie Partridge, founder of UpliftGTM. We build and optimise outbound sales systems for B2B technology companies, which means we evaluate, implement, and troubleshoot data providers constantly. We have tested every major platform on this list with real outbound campaigns, not sandbox demos. We know which providers deliver clean data at scale and which ones pad their database numbers with records that bounce, disconnect, or route to the wrong person entirely.

This guide ranks the 15 best B2B data providers and sales intelligence tools in 2026 based on data accuracy, coverage, usability, integration quality, and real-world value for outbound sales teams. If you are building an outbound sales strategy, the data layer is where it starts.

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TL;DR: The 15 Best B2B Data Providers Compared

Provider	Best For	Data Type	Database Size	Starting Price	Rating
ZoomInfo	Enterprise sales teams	Contact + Intent + Technographics	260M+ profiles	~$15,000/yr	9.3/10
Apollo.io	SMB and startup outbound	Contact + Engagement	270M+ profiles	Free / $49/mo	9.1/10
Clearbit	Data enrichment and APIs	Firmographic + Technographic	200M+ profiles	Custom pricing	8.7/10
Lusha	Quick direct dials	Contact (phone-focused)	100M+ profiles	Free / $36/mo	8.2/10
Cognism	EMEA and GDPR compliance	Contact + Intent	200M+ profiles	Custom pricing	8.6/10
LeadIQ	Prospecting workflows	Contact + CRM sync	100M+ profiles	Free / $39/mo	8.0/10
Seamless.ai	High-volume prospecting	Contact (AI-verified)	150M+ profiles	Custom pricing	7.5/10
6sense	ABM and intent data	Intent + Predictive	Account-level	Custom pricing	8.8/10
Bombora	B2B intent data	Intent signals	Company-level	Custom pricing	8.5/10
TechTarget	Tech buyer intent	Intent + Content syndication	Tech-focused	Custom pricing	8.3/10
DiscoverOrg (now ZoomInfo)	Legacy enterprise data	Contact + Org charts	Merged into ZoomInfo	N/A (ZoomInfo)	8.4/10
RocketReach	Email and phone lookup	Contact	700M+ profiles	Free / $39/mo	7.8/10
UpLead	Budget-friendly accuracy	Contact (verified)	160M+ profiles	$74/mo	8.0/10
SalesIntel	Human-verified data	Contact (human-verified)	100M+ profiles	Custom pricing	8.1/10
People Data Labs	Developer-first data API	Raw data via API	1.5B+ profiles	Usage-based	8.2/10

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How We Evaluated These B2B Data Providers

Choosing a data provider is not the same as choosing a CRM or a sequencing tool. Bad data does not just slow you down — it actively damages your deliverability, wastes your sales team's time, and corrupts your CRM. Here are the six criteria we used.

1. Data Accuracy

We tested email deliverability rates across random samples of exported contacts. Providers claiming 95%+ accuracy rarely hit that number in practice. We report what we actually experienced, not what the vendor's marketing page promises.

2. Database Coverage

Size matters, but only if the records are real. A provider with 700 million profiles that includes outdated LinkedIn scrapes is less useful than one with 150 million verified records. We assessed coverage across company sizes, industries, and geographies — with particular attention to mid-market and enterprise contacts in technology, SaaS, and professional services.

3. Data Freshness

How frequently does the provider update their records? B2B contacts change roles every 2-3 years on average. A database that refreshes quarterly will always have a higher bounce rate than one with continuous verification. We looked at each provider's update cadence and how quickly they reflect job changes.

4. Integration Ecosystem

Your data provider needs to push clean data into your CRM and sequencing tools without manual CSV exports. We assessed native integrations with HubSpot, Salesforce, Outreach, Salesloft, and Apollo — the tools most B2B sales teams actually use.

5. Compliance and Privacy

GDPR, CCPA, and evolving privacy regulations mean that where and how a provider sources their data matters. Providers with opt-in data collection and clear compliance frameworks score higher, especially for teams selling into European markets.

6. Value for Money

Enterprise data providers can cost $30,000-$100,000 per year. Startup-friendly tools start at $50 per month. We evaluated pricing relative to the quality and volume of data you actually receive, not just the sticker price.

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The 15 Best B2B Data Providers in 2026

1. ZoomInfo — Best Enterprise Sales Intelligence Platform

Rating: 9.3/10 | Visit ZoomInfo

Best For: Mid-market and enterprise sales teams that need comprehensive contact, company, intent, and technographic data in a single platform.

ZoomInfo remains the gold standard for enterprise B2B sales intelligence. The platform combines the largest verified contact database in the market with intent data, technographic insights, org charts, and a growing suite of engagement tools. If you are running a 20+ person sales team with dedicated SDRs targeting mid-market and enterprise accounts, ZoomInfo provides the deepest and most reliable data available.

The acquisition of DiscoverOrg in 2019 merged the two strongest enterprise contact databases into one platform. Since then, ZoomInfo has layered on intent signals, website visitor identification, conversation intelligence, and workflow automation — transforming from a data provider into a full revenue intelligence platform.

Where ZoomInfo earns its premium is data accuracy. In our testing, email deliverability rates consistently hit 90-93%, which is among the highest in the industry. Direct dial accuracy is harder to measure, but ZoomInfo's phone-verified contacts connect at meaningfully higher rates than competitors relying solely on algorithmic matching.

The platform integrates natively with every major CRM and sales engagement tool, and the API is robust enough for custom implementations. The new Copilot features use AI to surface buying signals and recommend next actions, which saves time for reps who would otherwise be manually searching for trigger events.

Pros:

• Industry-leading data accuracy across email and phone
• Comprehensive platform: contacts, intent, technographics, org charts
• Deep CRM and sales engagement integrations
• Real-time intent data powered by Bombora partnership
• Org chart visualisation helps map buying committees

Cons:

• Expensive — annual contracts start around $15,000 and scale quickly
• Credit-based pricing penalises high-volume prospecting
• Contract terms are rigid with auto-renewals
• Overkill for early-stage startups with small TAMs
• Some international data coverage gaps outside North America

Pricing: Custom pricing, typically starting at $15,000/year for small teams. Enterprise contracts can exceed $50,000-$100,000/year depending on seats, credits, and modules. No monthly option.

Best For Teams That: Have budget for premium data, sell into mid-market and enterprise accounts, need intent and technographic data alongside contacts, and want a single platform rather than stitching together multiple tools.

For a detailed comparison of ZoomInfo against the most popular alternative for startups, see our guide: Apollo vs ZoomInfo.

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2. Apollo.io — Best for Startups and SMB Outbound

Rating: 9.1/10 | Visit Apollo.io

Best For: Startups and SMBs that want a combined data provider and sales engagement platform at a fraction of ZoomInfo's cost.

Apollo.io has become the default data and outbound tool for B2B startups, and for good reason. The platform combines a contact database of 270 million+ profiles with built-in email sequencing, a dialer, LinkedIn automation, and deal management — all accessible from a genuinely useful free tier.

What makes Apollo exceptional value is that you are not just buying data — you are getting an entire outbound execution platform. Most competitors sell you contacts and then expect you to export CSVs into a separate sequencing tool. Apollo lets you find, verify, sequence, and track prospects without leaving the platform. For a five-person startup sales team, this eliminates the need for a standalone sequencing tool entirely.

Data quality has improved significantly since 2024. Apollo's email verification now runs real-time checks at the point of export, which reduces bounce rates compared to providers that verify on a batch schedule. In our testing, we consistently see 88-91% email deliverability on Apollo contacts, which is competitive with providers charging five to ten times more.

The free tier gives you 10,000 email credits per month, basic sequences, and access to the full database — more than enough for a founder running early outbound experiments. Paid tiers unlock unlimited emails, advanced filters, intent data, and higher API limits.

Pros:

• Combined data + engagement platform eliminates tool sprawl
• Generous free tier for startups
• Real-time email verification reduces bounces
• Strong filtering: technographics, funding events, job changes
• Built-in sequences, dialer, and LinkedIn steps
• Excellent value relative to data quality

Cons:

• Phone number accuracy lags behind ZoomInfo and Cognism
• Data quality varies by geography — strongest in North America
• Some duplicate and outdated records in less common industries
• Advanced features (intent data, AI) locked behind higher tiers
• Platform can feel overwhelming with the breadth of features

Pricing: Free tier available (10,000 email credits/month). Basic: $49/user/month. Professional: $79/user/month. Organization: $119/user/month (billed annually). Custom enterprise pricing available.

Best For Teams That: Want data and outbound execution in one tool, operate on startup budgets, primarily target North American markets, and value speed of execution over absolute data perfection.

We have written an in-depth breakdown: Apollo vs ZoomInfo — covering data quality, pricing, and which tool fits different team sizes.

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3. Clearbit (now part of HubSpot) — Best for Data Enrichment and APIs

Rating: 8.7/10 | Visit Clearbit

Best For: Marketing and revenue operations teams that need real-time data enrichment, lead scoring, and firmographic APIs integrated into their existing tech stack.

Clearbit has always been more of a data infrastructure layer than a traditional prospecting database. After being acquired by HubSpot in late 2023, Clearbit's enrichment capabilities have been deeply integrated into the HubSpot ecosystem — but the standalone API and enrichment products remain available for non-HubSpot users.

Where Clearbit excels is real-time enrichment. When a lead fills out a form on your website, Clearbit instantly appends firmographic data (company size, industry, revenue, technology stack) and demographic data (job title, seniority, department) to that record. This powers real-time lead scoring, routing, and personalisation at a level most standalone data providers cannot match.

The Reveal product identifies anonymous website visitors at the company level and matches them against Clearbit's firmographic database, giving marketing teams an account-level view of who is engaging with their content before those visitors ever fill out a form.

For outbound prospecting, Clearbit is less of a standalone solution and more of an enrichment layer. You would typically pair Clearbit with a contact database like Apollo or ZoomInfo to get the prospect's email and phone, then use Clearbit to append company and technographic data for segmentation and personalisation.

Pros:

• Best-in-class real-time data enrichment
• Strong firmographic and technographic data
• Excellent API documentation and developer experience
• Deep HubSpot integration post-acquisition
• Website visitor identification (Reveal)
• Clean, well-structured data output

Cons:

• Not a standalone prospecting tool — weak on direct contact discovery
• Pricing is opaque and can be expensive at scale
• HubSpot acquisition creates uncertainty for non-HubSpot users
• Email and phone data is limited compared to dedicated contact databases
• Best value within the HubSpot ecosystem

Pricing: Custom pricing based on enrichment volume and products used. HubSpot customers get Clearbit enrichment features included in certain tiers. Standalone API pricing starts around $99/month for low-volume usage.

Best For Teams That: Already use HubSpot, need real-time enrichment for inbound lead scoring and routing, want to identify anonymous website visitors, or need clean firmographic data via API for custom workflows.

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4. Lusha — Best for Quick Direct Dial Numbers

Rating: 8.2/10 | Visit Lusha

Best For: SDRs and AEs who need fast access to direct dial phone numbers and verified email addresses from LinkedIn profiles.

Lusha built its reputation on one thing: giving salespeople direct phone numbers that actually work. While the platform has expanded into a broader sales intelligence tool with company data, intent signals, and prospecting lists, the core value proposition remains the Chrome extension that reveals contact details while browsing LinkedIn.

The Lusha browser extension is genuinely one of the fastest ways to get a prospect's direct number. Click the extension on a LinkedIn profile, and within seconds you have a mobile number and email address — no searching through databases or running verification workflows. For SDRs who live in LinkedIn and need to make 50+ calls per day, this speed advantage compounds across hundreds of prospects.

Phone number accuracy is strong — Lusha sources from a combination of public records, community-contributed data, and proprietary verification. In our testing, direct dial connect rates from Lusha contacts were 15-20% higher than the industry average, which translates directly into more conversations per hour for phone-heavy sales teams.

Pros:

• Excellent direct dial accuracy
• Fast Chrome extension for LinkedIn prospecting
• Free tier with 5 credits per month
• Simple interface — minimal learning curve
• GDPR and CCPA compliant data sourcing
• Good mobile number coverage

Cons:

• Smaller database than ZoomInfo or Apollo
• Limited company and firmographic data depth
• Credit-based pricing can get expensive for high-volume teams
• Weak sequencing and engagement features
• Intent data offering is relatively new and less mature

Pricing: Free tier (5 credits/month). Pro: $36/user/month. Premium: $59/user/month. Scale: custom pricing. All plans billed annually.

Best For Teams That: Prioritise phone outreach, need high-accuracy direct dials, prospect primarily through LinkedIn, and want a lightweight tool that does one thing well.

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5. Cognism — Best for EMEA Data and GDPR Compliance

Rating: 8.6/10 | Visit Cognism

Best For: Sales teams targeting European markets that need GDPR-compliant contact data with strong phone number verification.

Cognism has carved out a strong position as the leading B2B data provider for European markets. While ZoomInfo and Apollo dominate North America, Cognism's data quality in the UK, DACH, Nordics, and broader EMEA region is meaningfully better — particularly for phone-verified mobile numbers.

The platform's Diamond Data offering is phone-verified: Cognism's research team manually calls and verifies mobile numbers, which delivers connect rates 3x higher than standard database numbers. If your SDRs are calling into European markets where mobile is the primary business contact method, this verification layer is worth the premium alone.

GDPR compliance is baked into Cognism's data sourcing methodology, not bolted on as an afterthought. The platform cross-references against Do Not Call registries across European countries and provides clear consent and legal basis documentation for every contact. For companies with legal or compliance teams scrutinising outbound data practices, Cognism provides the strongest audit trail in the market.

Pros:

• Best-in-class EMEA data coverage and accuracy
• Diamond Data phone verification delivers high connect rates
• Strong GDPR and privacy compliance framework
• Intent data powered by Bombora integration
• Good Chrome extension for LinkedIn prospecting
• Clean integration with major CRMs and sequencing tools

Cons:

• North American data is less comprehensive than ZoomInfo or Apollo
• Premium pricing — not viable for early-stage startups
• Smaller overall database than the largest providers
• Intent data is a resold Bombora feed, not proprietary
• Platform UX can feel dated compared to Apollo

Pricing: Custom pricing based on team size and data requirements. Typically starts at $15,000-$25,000/year for small teams. Enterprise contracts scale with seats and data credits.

Best For Teams That: Sell into European markets, need GDPR-compliant data sourcing, prioritise phone outreach with verified mobile numbers, and have budget for a premium provider.

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6. LeadIQ — Best for Prospecting Workflow Integration

Rating: 8.0/10 | Visit LeadIQ

Best For: SDR teams that need a streamlined prospecting workflow connecting LinkedIn, CRM, and sequencing tools with minimal friction.

LeadIQ is purpose-built for the modern SDR workflow: find a prospect on LinkedIn, capture their contact data, push it to your CRM with the right tags, and add them to a sequence — all in a few clicks. The platform does not try to be a full sales intelligence suite. Instead, it focuses on making the prospecting capture-to-sequence workflow as frictionless as possible.

The Chrome extension captures contact data from LinkedIn and Sales Navigator, then one-click pushes it to Salesforce or HubSpot with automatic field mapping. The Scribe feature uses AI to generate personalised first lines for email sequences based on the prospect's LinkedIn activity and company news, which saves SDRs time on the personalisation step that typically slows down high-volume outbound.

Pros:

• Excellent prospecting workflow — LinkedIn to CRM to sequence in clicks
• AI-generated personalised email first lines (Scribe)
• Clean Salesforce and HubSpot integrations
• Job change tracking alerts
• Free tier available for individual users
• Intuitive UX designed specifically for SDRs

Cons:

• Smaller contact database than ZoomInfo, Apollo, or Cognism
• Email accuracy varies — not as reliable as Cognism or ZoomInfo
• Limited company-level data and firmographics
• Not useful beyond the SDR prospecting use case
• Phone number coverage is weak

Pricing: Free tier available (20 verified emails/month). Essential: $39/user/month. Pro: $79/user/month. Enterprise: custom pricing.

Best For Teams That: Have established SDR teams, use LinkedIn/Sales Navigator heavily, want to reduce prospecting friction, and value workflow speed over database depth.

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7. Seamless.ai — Best for High-Volume Prospecting

Rating: 7.5/10 | Visit Seamless.ai

Best For: Sales teams that need to build large prospect lists quickly and prioritise volume over precision.

Seamless.ai takes a different approach to contact data. Rather than maintaining a static database, the platform uses AI to search and verify contact information in real-time from across the web. In theory, this means the data is always current because it is being found and verified at the moment you request it.

In practice, the results are mixed. When Seamless.ai finds the right contact, the data tends to be current and accurate. But the hit rate — the percentage of searches that return a valid result — is lower than static database providers. You will run searches that return no results, outdated information, or contacts that have clearly changed roles since the data was indexed.

The platform is designed for volume. Sales teams that need to generate 500+ new prospects per week will find the search-and-export workflow efficient. The Chrome extension works across LinkedIn, company websites, and other web pages, scraping and verifying contact details on the fly.

Pros:

• Real-time data search can surface current information
• Unlimited contacts on higher tiers
• Chrome extension works across multiple web sources
• Good for building large prospect lists quickly
• Job change and trigger event alerts

Cons:

• Inconsistent data accuracy — hit-or-miss quality
• Aggressive sales practices and auto-renewal contracts
• UX can be clunky and unintuitive
• Customer support has received poor reviews
• Data quality varies significantly by industry and geography
• Phone number accuracy is below average

Pricing: Custom pricing. Free trial available. Plans typically range from $147-$300/month per user. Annual contracts with auto-renewal are standard.

Best For Teams That: Prioritise list volume over precision, have processes to verify and clean data before sequencing, and need a tool for rapid prospect list building at scale.

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8. 6sense — Best for ABM and Predictive Intent Data

Rating: 8.8/10 | Visit 6sense

Best For: Enterprise marketing and sales teams running account-based strategies that need predictive analytics to identify in-market accounts before they engage directly.

6sense is not a traditional contact database — it is an account-based marketing and sales intelligence platform that uses AI and intent data to predict which accounts are actively researching solutions in your category. The platform identifies buying signals from across the web, matches them to target accounts, and scores accounts by buying stage — enabling sales and marketing teams to focus resources on accounts most likely to convert.

The Revenue AI engine analyses billions of intent signals, website interactions, and engagement patterns to build a predictive model of account behaviour. Instead of guessing which accounts to target, your team can see which companies are actively researching your category, what topics they are researching, and how far along they are in their buying journey.

This is a fundamentally different approach to outbound. Rather than building lists from firmographic filters and hoping your timing is right, 6sense identifies accounts that are already showing buying intent — which shortens sales cycles and improves conversion rates at the top of the funnel.

Pros:

• Best-in-class predictive intent and account identification
• AI-powered buying stage predictions
• Website visitor de-anonymisation at account level
• Strong ABM campaign orchestration
• Deep integrations with Salesforce, HubSpot, and marketing platforms
• Helps align sales and marketing on target accounts

Cons:

• Very expensive — enterprise pricing only
• Complex implementation requiring dedicated RevOps resources
• Not a contact database — you still need a separate data provider
• Value depends on having enough website traffic for signals
• Learning curve is steep for sales teams
• Overkill for companies without a mature ABM strategy

Pricing: Custom enterprise pricing only. Typically starts at $50,000-$100,000+/year depending on modules and account volume. Not viable for SMBs or early-stage startups.

Best For Teams That: Run account-based marketing programmes, have budget for enterprise platforms, want to identify in-market accounts before competitors, and have the RevOps maturity to operationalise intent signals.

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9. Bombora — Best Pure-Play B2B Intent Data

Rating: 8.5/10 | Visit Bombora

Best For: Marketing and sales teams that want to layer intent data onto their existing data stack to prioritise accounts showing active research behaviour.

Bombora is the largest independent provider of B2B intent data. The Company Surge data identifies when a company is researching topics related to your products or services at a rate significantly above their baseline — indicating potential buying intent. This signal helps sales and marketing teams prioritise accounts that are actively in-market rather than spraying outreach across their entire TAM.

Unlike 6sense, which is a full platform, Bombora is primarily a data layer. It integrates with your existing CRM, data provider, and marketing automation platform to enrich account records with intent scores. Many other providers — including ZoomInfo, Cognism, and Salesforce — license Bombora's intent data and resell it within their platforms. Going direct to Bombora gives you the raw data and more flexibility in how you use it.

Bombora's data comes from a co-operative of 5,000+ B2B media sites where professionals consume content. This opt-in, first-party data sourcing model is stronger from a privacy perspective than providers that rely on cookie tracking or IP matching.

Pros:

• Largest independent B2B intent data set
• Co-operative data model provides breadth and privacy compliance
• Integrates with most major CRM and sales intelligence platforms
• Company Surge scoring is straightforward to operationalise
• Privacy-first data collection methodology
• Available as a standalone data feed or through partner integrations

Cons:

• Account-level data only — no individual contact identification
• Requires a separate contact database for outbound execution
• Intent signals can be noisy — not every surge leads to a purchase
• Custom pricing can be expensive for smaller companies
• Requires RevOps maturity to integrate and action effectively
• Topic taxonomy may not cover niche categories

Pricing: Custom pricing based on account volume and topics tracked. Typically $25,000-$60,000+/year. Also available through reseller partners like ZoomInfo and Cognism.

Best For Teams That: Already have a contact database and want to add an intent data layer, run ABM programmes, want to prioritise outbound by buying signals, and have the infrastructure to operationalise intent scores.

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10. TechTarget — Best for Technology Buyer Intent

Rating: 8.3/10 | Visit TechTarget

Best For: Technology vendors that want to identify IT buyers actively researching specific technology categories through content engagement.

TechTarget occupies a unique position in the B2B data landscape. The company operates a network of 150+ technology-focused media properties where IT professionals research products and solutions. This first-party content engagement data fuels TechTarget's Priority Engine platform, which identifies specific contacts (not just companies) showing purchase intent for technology products.

The key differentiator is contact-level intent. While Bombora and most intent providers tell you which companies are researching a topic, TechTarget can identify the specific individuals within those companies who are consuming relevant content on their media network. For technology sellers, this means your SDRs can reach out to the actual person doing the research, not just a generic contact at the account.

Pros:

• Contact-level intent data, not just account-level
• First-party data from owned technology media properties
• Deep coverage of IT and technology buyer personas
• Strong for enterprise technology sales cycles
• Integrates with major CRM and MAP platforms
• Content syndication services complement the data

Cons:

• Limited to technology buyer personas — not useful outside tech
• Expensive premium offering
• Data is strongest for North American and enterprise markets
• Requires a technology product or service to derive value
• Intent signals are limited to TechTarget's media network
• Less useful for SMB or mid-market technology selling

Pricing: Custom pricing. Priority Engine subscriptions typically start at $30,000-$50,000+/year. Content syndication programmes are priced separately.

Best For Teams That: Sell technology products or services, target IT decision-makers, want contact-level (not just account-level) intent, and have budget for premium intent data.

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11. DiscoverOrg (now ZoomInfo) — Legacy Enterprise Data Platform

Rating: 8.4/10

Best For: Historical context — DiscoverOrg's capabilities are now fully integrated into ZoomInfo.

DiscoverOrg was the premier enterprise contact database before merging with ZoomInfo in 2019. Known for human-verified org charts, direct dial numbers, and technology install data, DiscoverOrg set the standard for enterprise sales intelligence data. The company's research team manually verified contacts through phone calls — a methodology that delivered the highest accuracy in the industry at the time.

Following the merger, DiscoverOrg's data, technology, and research capabilities were fully absorbed into the ZoomInfo platform. The DiscoverOrg brand no longer operates independently, but its core strengths — particularly org chart data and human verification — remain pillars of ZoomInfo's enterprise offering.

If you see DiscoverOrg referenced in older sales enablement content or by veteran sales leaders, know that you are looking at what is now ZoomInfo's enterprise tier. The data quality heritage lives on, but you will purchase it under the ZoomInfo brand.

Legacy Strengths: Human-verified contacts, detailed org charts, direct dial accuracy, technology install data, strong enterprise coverage.

Current Status: Fully merged into ZoomInfo. See ZoomInfo (item 1) for current capabilities and pricing.

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12. RocketReach — Best for Broad Email and Phone Lookup

Rating: 7.8/10 | Visit RocketReach

Best For: Individual contributors and small teams that need a simple, affordable tool for finding email addresses and phone numbers across a large database.

RocketReach claims one of the largest contact databases in the market at 700 million+ profiles, aggregated from public sources, social networks, and proprietary data partnerships. The platform is straightforward: search for a person or company, and RocketReach returns email addresses, phone numbers, and social profiles.

The strength of RocketReach is its breadth. The database covers professionals across virtually every industry and geography, making it useful when you need to find contacts in niche sectors that larger platforms sometimes miss. The browser extension works across LinkedIn, Crunchbase, AngelList, and company websites, making it easy to grab contact details while browsing.

Data accuracy is where RocketReach shows its limitations. The email verification is decent for professional domains, but personal email addresses (Gmail, Yahoo) creep into the results more frequently than with premium providers. Phone number accuracy is moderate — expect lower connect rates than ZoomInfo, Cognism, or Lusha.

Pros:

• Very large database covering diverse industries
• Affordable pricing for individual users
• Simple, no-frills interface
• Browser extension works across multiple platforms
• Bulk lookup capabilities
• API available for custom integrations

Cons:

• Email accuracy is inconsistent, especially for smaller companies
• Phone number quality is below premium providers
• Personal email addresses mixed into business results
• Limited company and firmographic data
• No intent data or advanced sales intelligence
• Minimal sequencing or engagement features

Pricing: Free tier (5 lookups/month). Essentials: $39/month. Pro: $99/month. Ultimate: $249/month. Annual billing saves approximately 40%.

Best For Teams That: Need affordable contact lookup, want broad database coverage, do not require premium data accuracy, and use separate tools for sequencing and engagement.

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13. UpLead — Best Budget-Friendly Verified Data

Rating: 8.0/10 | Visit UpLead

Best For: Small and mid-sized sales teams that want verified contact data at a lower price point than enterprise providers, with a focus on data accuracy over database size.

UpLead has built a strong reputation by focusing on data accuracy above all else. The platform verifies email addresses in real-time at the point of export, which means you are not downloading contacts against a verification that ran weeks or months ago. UpLead claims 95%+ email accuracy, and in our testing, the deliverability rates consistently exceeded 90% — competitive with providers costing three to five times more.

The database of 160 million+ contacts is smaller than ZoomInfo or Apollo, but the contacts you do export tend to be cleaner and more current. For teams that prioritise quality over quantity, this trade-off is worthwhile. You will spend less time cleaning lists and dealing with bounced emails, which means more of your SDRs' time goes toward actual selling.

The platform includes 50+ search filters including technographic data (what software a company uses), which enables targeted prospecting for technology vendors. The intent data add-on, powered by Bombora, helps prioritise accounts showing active research behaviour.

Pros:

• High email accuracy with real-time verification
• Transparent, affordable pricing
• 50+ search filters including technographics
• Data enrichment features for existing lists
• Clean, intuitive interface
• Bombora intent data integration available

Cons:

• Smaller database limits coverage in niche sectors
• Phone number data is less comprehensive
• No built-in sequencing or engagement tools
• Chrome extension is less polished than competitors
• International coverage is weaker than Cognism
• Credit-based system requires careful management

Pricing: Essentials: $74/month (2,040 credits/year). Plus: $149/month (4,800 credits/year). Professional: $299/month (12,000 credits/year). Annual billing only.

Best For Teams That: Want reliable data accuracy at mid-range pricing, sell primarily into North American markets, value quality over database size, and use separate tools for engagement.

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14. SalesIntel — Best for Human-Verified Contact Data

Rating: 8.1/10 | Visit SalesIntel

Best For: Sales teams that need human-verified B2B contacts with a 95% accuracy guarantee, particularly for phone outreach where contact accuracy directly impacts connect rates.

SalesIntel differentiates itself with human verification. While most data providers rely on algorithmic verification — checking email syntax, domain validity, and pattern matching — SalesIntel employs a research team that manually verifies contacts through direct outreach. Every 90 days, contacts in the database go through a re-verification cycle, ensuring the data stays current as people change roles and companies.

The 95% data accuracy guarantee is backed by a credit-back policy: if a contact bounces or is incorrect, you get the credit refunded. This is a stronger guarantee than most competitors offer, and in our testing, the accuracy claims held up — bounce rates on SalesIntel exports were consistently below 5%.

The platform also includes intent data powered by Bombora, technographic filters, and a Research on Demand service where you can request SalesIntel's team to find and verify specific contacts that are not currently in the database. This on-demand research capability is genuinely useful for ABM teams targeting specific decision-makers at key accounts.

Pros:

• Human-verified contacts with 95% accuracy guarantee
• 90-day re-verification cycle keeps data current
• Research on Demand for custom contact requests
• Bombora intent data integration
• Credit-back guarantee for inaccurate data
• Good for phone-heavy outbound teams

Cons:

• Smaller database than Apollo or ZoomInfo
• Pricing is not transparent — requires a sales conversation
• International coverage is limited, particularly outside North America
• Platform UX is less polished than newer competitors
• Integration ecosystem is narrower than market leaders
• Research on Demand has turnaround time

Pricing: Custom pricing. Individual plans start around $69/month. Team and enterprise plans are quote-based, typically $10,000-$30,000+/year depending on credits and features.

Best For Teams That: Run high-volume phone outreach, need guaranteed data accuracy, want on-demand research for ABM target lists, and value human verification over algorithmic approaches.

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15. People Data Labs — Best Developer-First Data API

Rating: 8.2/10 | Visit People Data Labs

Best For: Engineering and RevOps teams that need raw B2B person and company data via API for custom applications, enrichment workflows, and data products.

People Data Labs (PDL) is fundamentally different from every other provider on this list. It is not a sales tool with a search interface and Chrome extension — it is a data API that gives developers access to 1.5 billion+ person profiles and 30 million+ company profiles for building custom applications, enrichment pipelines, and data-driven workflows.

If your team has engineering resources and wants to build proprietary lead scoring, account matching, or enrichment logic, PDL provides the raw data layer. You can query by person attributes (name, email, company, title, location) or company attributes (name, domain, size, industry) and receive structured JSON responses that plug directly into your data infrastructure.

The scale of PDL's dataset is unmatched — 1.5 billion profiles means coverage extends well beyond the typical B2B professional database into long-tail contacts and companies. However, the data is not human-verified or curated to the same standard as ZoomInfo or SalesIntel. You are trading curation for scale and flexibility.

Pros:

• Massive dataset: 1.5B+ person profiles, 30M+ companies
• Developer-friendly REST API with excellent documentation
• Usage-based pricing scales with actual consumption
• Raw data gives maximum flexibility for custom workflows
• Person and company enrichment endpoints
• Strong for building data products and custom scoring models

Cons:

• Not a sales tool — no search UI, sequences, or Chrome extension
• Requires engineering resources to implement
• Data accuracy varies — less curated than sales-focused providers
• Not suitable for teams without technical resources
• Compliance burden shifts to you — no built-in consent management
• Support is oriented toward developers, not sales teams

Pricing: Usage-based pricing. Free tier for development and testing. Production pricing starts at $0.01-$0.10 per record depending on volume and data type. Monthly minimum commitments on higher tiers.

Best For Teams That: Have engineering resources, want to build custom data workflows, need enrichment at scale, are building data products, and want raw data rather than a polished sales tool.

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How to Choose the Right B2B Data Provider

Choosing a data provider depends on your team size, budget, target market, and how you plan to use the data. Here is a framework.

For Early-Stage Startups (1-5 SDRs, Under $1,000/month budget)

Start with Apollo.io. The free tier gives you enough to validate your outbound motion, and the combined data + engagement platform eliminates tool sprawl. If you need supplemental phone numbers, add Lusha as a lightweight layer on top.

For Growth-Stage Companies (5-20 SDRs, $10,000-$30,000/year budget)

Evaluate ZoomInfo and Cognism alongside Apollo. If you sell primarily into North America, ZoomInfo's data quality justifies the premium. If EMEA is a significant market, Cognism's European coverage and GDPR compliance are essential. Layer Bombora intent data if you are running ABM programmes.

For Enterprise Sales Teams (20+ SDRs, $50,000+/year budget)

Invest in ZoomInfo as your primary data platform. Add 6sense for predictive intent and ABM orchestration. Supplement with TechTarget if you sell to technology buyers. Use Clearbit for real-time enrichment of inbound leads.

For RevOps and Data Teams

Consider People Data Labs if you have engineering resources and want to build custom enrichment pipelines. Use Clearbit APIs for real-time form enrichment and lead scoring. Combine with Bombora for intent-driven account prioritisation.

Your data provider is one piece of the outbound puzzle. For the complete picture of how to build an outbound sales system that converts, see our guide to outbound sales strategy, or explore how we help companies set up outbound sales systems end-to-end.

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Frequently Asked Questions

What is a B2B data provider?

A B2B data provider is a company that aggregates, verifies, and sells business contact and company information — including email addresses, phone numbers, job titles, company firmographics, and technology usage data. Sales and marketing teams use this data to identify prospects, build target lists, and power outbound campaigns. The best providers also include intent data that signals when companies are actively researching solutions.

How accurate are B2B contact databases?

Accuracy varies significantly by provider. Premium platforms like ZoomInfo and SalesIntel deliver 90-95% email accuracy on verified contacts. Mid-tier providers like Apollo and UpLead typically achieve 88-92%. Lower-cost tools and those relying on algorithmic verification may fall to 75-85%. Phone number accuracy is generally lower across all providers, with direct dial connect rates ranging from 15-40% depending on the data source and verification method.

What is the difference between contact data and intent data?

Contact data provides information about individual people and companies — who they are, where they work, and how to reach them. Intent data identifies behavioural signals indicating that a person or company is actively researching a topic or product category. Contact data answers "who should I reach out to?" while intent data answers "who should I reach out to right now?" The most effective outbound strategies layer both: use contact data to build your addressable list and intent data to prioritise which accounts to engage first. Learn more in our B2B intent data guide.

How much do B2B data providers cost?

Pricing spans a wide range. Free tiers from Apollo and Lusha give you limited credits at no cost. Mid-range tools like UpLead and RocketReach cost $75-$300/month per user. Enterprise platforms like ZoomInfo and Cognism start at $15,000-$25,000/year for small teams and can exceed $100,000/year for large organisations. Intent data platforms like 6sense and Bombora typically start at $25,000-$50,000/year. The right budget depends on your team size, outbound volume, and the value of each closed deal.

Can I use multiple B2B data providers together?

Yes, and many high-performing sales teams do exactly this. A common stack combines a primary contact database (ZoomInfo or Apollo) with an intent data layer (Bombora or 6sense) and an enrichment tool (Clearbit). Some teams add Lusha or Cognism specifically for phone numbers. The key is ensuring your CRM is the single source of truth and that you have processes to de-duplicate and normalise data from multiple sources.

Are B2B data providers GDPR compliant?

Compliance varies by provider. Cognism is the strongest for GDPR compliance, with opt-in data collection and cross-referencing against European Do Not Call registries. ZoomInfo and Apollo have made significant investments in compliance frameworks. However, the responsibility for lawful data processing ultimately rests with your organisation, not the data provider. You need a valid legal basis (typically legitimate interest for B2B outbound) and must honour opt-out requests. Consult your legal team and ensure your provider can demonstrate compliant data sourcing.

What is the best free B2B data provider?

Apollo.io offers the most generous free tier: 10,000 email credits per month, access to the full contact database, and basic sequencing features. Lusha provides 5 free credits per month, which is useful for occasional lookups. RocketReach offers 5 free lookups per month. LeadIQ gives 20 verified emails monthly on its free plan. For most teams, Apollo's free tier is sufficient to run early outbound experiments before committing to a paid plan.

How do I evaluate B2B data quality before purchasing?

Request a trial or sample data set in your specific target market. Export 100-200 contacts matching your ICP and run them through an independent email verification tool like NeverBounce or ZeroBounce. Test phone numbers by calling a representative sample. Check the freshness of job titles against LinkedIn profiles. Measure the percentage of contacts that are current, accurate, and reachable. Any provider confident in their data quality should offer a trial or money-back guarantee — be wary of those that refuse.

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Conclusion

The B2B data provider you choose directly impacts every metric in your outbound funnel — from deliverability and connect rates to meetings booked and pipeline generated. There is no single best provider for every team. The right choice depends on your budget, target geography, outbound methodology, and technical capabilities.

For most startups and SMBs, Apollo.io provides the best combination of data quality, engagement features, and value. For mid-market and enterprise teams with budget, ZoomInfo remains the most comprehensive platform. For European-focused teams, Cognism is the clear leader. And for teams running sophisticated ABM programmes, 6sense and Bombora add a predictive layer that transforms how you prioritise accounts.

Whatever provider you choose, remember that data is an input, not an outcome. The best data in the world does not generate pipeline without a clear outbound sales strategy, well-crafted messaging, and disciplined execution. If you need help building the complete outbound system — from data to sequences to measurement — explore our outbound sales system setup service.