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10 Best B2B Data Providers in 2025

Looking for accurate B2B contact data? We've tested the top providers to help you find verified emails, phone numbers, and company information without breaking the bank.

Most B2B data providers charge $5,000-$50,000 annually and deliver outdated contact lists with 30-40% bounce rates. The right B2B data provider gives you real-time verified contacts for a fraction of that cost.

Problem is, most B2B databases are stale within 90 days. Contacts change jobs, emails get deactivated, and phone numbers disconnect. The providers that actually work don't just scrape LinkedIn profiles—they verify data in real-time and update continuously. They start under $100/month, so you can skip the enterprise sales calls and six-figure contracts.

We tested 15 B2B data providers over 6 months. Most had 50%+ bounce rates, outdated information, or required annual contracts with hidden fees. The 10 tools on this list deliver accurate contact data, verify emails before you download them, and offer flexible pricing better than the rest.

Quick Comparison

Compare the top 10 B2B data providers at a glance

Rank Provider Price/mo Data Accuracy Database Size Rating
#1 LinkFinder AI $29 95%+ 500M+ contacts 4.9/5
#2 ZoomInfo $15,000 90% 260M+ contacts 4.4/5
#3 Apollo.io $49 85% 275M+ contacts 4.5/5
#4 Cognism $10,000 87% 400M+ contacts 4.6/5
#5 Lusha $39 80% 100M+ contacts 4.3/5
#6 Seamless.AI $147 75% 1B+ contacts 4.2/5
#7 LeadIQ $75 82% 150M+ contacts 4.4/5
#8 Hunter.io $49 85% 200M+ emails 4.4/5
#9 Kaspr $49 80% 500M+ contacts 4.3/5
#10 RocketReach $53 78% 700M+ contacts 4.2/5
#2

ZoomInfo

Enterprise B2B Database with Intent Data

ZoomInfo is the 800-pound gorilla of B2B data providers. With 260 million contacts and 100 million company profiles, it's built for enterprise sales teams who need comprehensive company intelligence, buying signals, and verified contact information all in one platform.

What sets ZoomInfo apart is its intent data and technographic information. You can see what technologies companies use, who's actively researching solutions like yours, and get org charts showing the entire decision-making team. The data accuracy sits around 90%, which is solid for a database this large, and they verify contacts through multiple sources including direct dials and email validation.

Key Features

  • 260M+ contact database - Verified emails, direct dials, and mobile numbers
  • Intent data signals - See which companies are actively researching your solutions
  • Technographic data - Know what tech stack companies use
  • Organization charts - Map out entire decision-making teams
  • Native CRM integrations - Salesforce, HubSpot, and 300+ other tools
  • Chrome extension - Enrich contacts while browsing LinkedIn or company websites
  • Data enrichment API - Automatically append contact data to existing records

Starting at $15,000/year – requires annual contract and custom pricing based on seat count. Enterprise plans can exceed $50,000 annually.

✓ Pros

  • Most comprehensive B2B database available
  • 90% contact accuracy with continuous updates
  • Intent data shows who's in-market right now
  • Excellent for enterprise sales teams
  • Deep CRM integrations and workflow automation
  • Strong technographic and firmographic data

✗ Cons

  • Extremely expensive - minimum $15,000 annually
  • Requires annual contract with no month-to-month option
  • Complex pricing with hidden add-on costs
  • Overkill for small businesses and startups
  • Steep learning curve for new users
  • Customer support can be slow
#3

Apollo.io

All-in-One Sales Intelligence Platform

Apollo.io combines B2B data with sales engagement tools in one platform. With 275 million contacts and 73 million companies, it offers solid coverage at a price point that makes sense for growing teams. Unlike enterprise-only solutions, Apollo has a generous free tier and paid plans starting at $49/month.

What makes Apollo interesting is the built-in sales engagement workflow. You can find leads, enrich them with contact data, and immediately launch email sequences or calling campaigns without switching tools. The data accuracy hovers around 85%, which is good but not great—you'll want to verify critical contacts before high-value outreach.

Key Features

  • 275M+ contact database - Emails, phone numbers, and LinkedIn profiles
  • Built-in email sequencing - Multi-touch campaigns directly from the platform
  • Dialer included - Make calls without leaving Apollo
  • Buying intent signals - Track companies showing purchase signals
  • Chrome extension - Enrich contacts while browsing LinkedIn
  • Job change tracking - Get alerts when contacts switch companies
  • Free tier available - 60 mobile credits and 120 export credits monthly

Starting at $49/month – includes 12,000 email credits annually. Professional plan at $99/month adds phone numbers and more credits.

✓ Pros

  • Affordable pricing compared to enterprise options
  • Combines data with engagement tools
  • Generous free tier for testing
  • Good database coverage with 275M contacts
  • Regular data updates and new features
  • No annual contract required

✗ Cons

  • 85% accuracy lower than premium providers
  • Credit system can be confusing
  • Email deliverability issues reported
  • Limited phone number coverage
  • Interface can feel cluttered
  • Customer support inconsistent on lower tiers
#4

Cognism

European-Focused B2B Data with GDPR Compliance

Cognism specializes in European B2B data while maintaining GDPR compliance—a rare combination. With 400 million contacts globally and particularly strong coverage in UK and EU markets, it's the go-to for companies selling into Europe. The data accuracy sits around 87%, with phone-verified mobile numbers being a standout feature.

Beyond basic contact data, Cognism offers revenue intelligence features showing buying signals and intent data. The platform integrates with major CRMs and includes a Chrome extension for real-time prospecting. Pricing requires custom quotes, but expect $10,000+ annually for meaningful access.

Key Features

  • 400M+ global contacts - Exceptional European market coverage
  • Phone-verified mobile numbers - Higher accuracy than database-only providers
  • GDPR-compliant data - Legally safe for European outreach
  • Intent data included - See companies researching your category
  • Technographic insights - Track technology adoption
  • Salesforce & HubSpot native sync - Automatic contact enrichment
  • Chrome extension - Find contacts while browsing LinkedIn

Starting at $10,000/year – custom pricing based on team size and data needs. Enterprise plans exceed $30,000 annually.

✓ Pros

  • Best European data coverage available
  • Phone-verified mobile numbers included
  • GDPR compliance built-in
  • 87% accuracy with regular verification
  • Strong intent and technographic data
  • Excellent customer support

✗ Cons

  • Expensive enterprise pricing only
  • Weaker US market coverage
  • Annual contracts required
  • Not ideal for small businesses
  • Limited self-service options
  • Setup requires sales consultation
#5

Lusha

Simple B2B Data for Sales Teams

Lusha takes a streamlined approach to B2B data. With 100 million contacts and a focus on direct phone numbers, it's built for sales reps who need quick access to contact information without navigating complex platforms. The Chrome extension lets you find emails and phone numbers while browsing LinkedIn or company websites in seconds.

Data accuracy sits around 80%, which is acceptable but not industry-leading. Lusha works best for high-volume prospecting where you're contacting many leads and can tolerate some bounces. The platform includes basic enrichment and integrates with popular CRMs, though advanced features require higher-tier plans.

Key Features

  • 100M+ contact database - Focus on verified direct dials
  • Chrome extension - One-click contact reveal on LinkedIn
  • Email verification - Catch-all and disposable email detection
  • CRM integrations - Salesforce, HubSpot, and Pipedrive sync
  • Bulk enrichment - Upload CSV files for batch processing
  • API access - Programmatic data access on higher tiers
  • Simple credit system - Easy to understand usage tracking

Starting at $39/month – includes 40 credits monthly. Pro plan at $69/month adds 80 credits and advanced features.

✓ Pros

  • Affordable monthly pricing
  • Simple, intuitive interface
  • Fast Chrome extension
  • Good direct dial coverage
  • No annual contract needed
  • Quick to get started

✗ Cons

  • 80% accuracy lower than premium options
  • Smaller database than competitors
  • Credits run out quickly
  • Limited company data
  • No intent or technographic data
  • Higher tiers get expensive fast
#6

Seamless.AI

Real-Time Contact Search Engine

Seamless.AI claims over 1 billion contacts in its database, positioning itself as a real-time search engine rather than a static database. The platform uses AI to find and verify contact information on-demand, which means you're getting fresh data instead of potentially stale records. However, this approach comes with trade-offs in accuracy and consistency.

The Chrome extension integrates with LinkedIn Sales Navigator and company websites, letting you reveal contact information while prospecting. Data accuracy is hit-or-miss at around 75%—lower than premium providers but acceptable for high-volume outreach. The platform works best when combined with email verification tools.

Key Features

  • 1B+ contact database - Real-time search across web sources
  • AI-powered search - Natural language queries to find prospects
  • Chrome extension - Works with LinkedIn Sales Navigator
  • Autopilot feature - Automated list building based on criteria
  • Email verification - Validate emails before downloading
  • CRM integrations - Push contacts to Salesforce, HubSpot, and more
  • Writer assistant - AI-generated email templates

Starting at $147/month – includes unlimited search with credit-based downloads. Enterprise pricing available for teams.

✓ Pros

  • Massive database of 1B+ contacts
  • Real-time data discovery
  • Natural language search
  • Unlimited searches included
  • AI-powered features
  • Good LinkedIn integration

✗ Cons

  • 75% accuracy disappoints many users
  • Inconsistent data quality
  • Credit system confusing
  • Aggressive sales tactics reported
  • Customer support issues
  • Higher price point for accuracy level
#7

LeadIQ

Prospecting Tool for Sales Development Teams

LeadIQ focuses on the sales development workflow, combining contact data with tracking and engagement features. With 150 million contacts, the database is smaller than enterprise options but the 82% accuracy rate is competitive. The platform excels at capturing prospects from LinkedIn and pushing them into your sales workflow.

What makes LeadIQ different is the emphasis on sales intelligence over raw data volume. You can track job changes, see org charts, and get email pattern suggestions when direct emails aren't available. The Chrome extension works seamlessly with LinkedIn Sales Navigator, making it popular with SDR teams doing high-volume prospecting.

Key Features

  • 150M+ verified contacts - Focus on quality over quantity
  • Job change alerts - Track when prospects switch companies
  • Org chart mapping - See team structures and reporting lines
  • Email pattern detection - Intelligent guessing when emails not verified
  • Chrome extension - One-click capture from LinkedIn
  • CRM auto-sync - Salesforce and HubSpot integration
  • Prospecting lists - Build and manage lead lists in-platform

Starting at $75/month – includes 200 prospect credits monthly. Pro plan scales with team size.

✓ Pros

  • 82% accuracy better than many mid-tier tools
  • Excellent job change tracking
  • Sales-focused workflow
  • Strong LinkedIn integration
  • Good CRM sync capabilities
  • Intuitive interface

✗ Cons

  • Smaller database than enterprise options
  • Limited phone number coverage
  • Credit system restrictive
  • Higher cost per contact
  • No intent or technographic data
  • Annual contracts for best pricing
#8

Hunter.io

Email-First B2B Data Provider

Hunter.io specializes in finding and verifying business email addresses. With over 200 million verified emails, it takes a focused approach—do email finding really well instead of trying to be everything. The platform uses pattern detection and public web sources to discover email addresses associated with specific domains.

Email accuracy sits around 85%, which is solid for a tool at this price point. Hunter excels at domain searches—find all emails at a company, verify their status, and get confidence scores. The API is developer-friendly, making it popular for programmatic email enrichment. However, phone numbers and deeper company data are limited compared to full-featured platforms.

Key Features

  • 200M+ verified emails - Focus exclusively on email data
  • Domain search - Find all public emails for any company
  • Email verification - Check deliverability before sending
  • Email finder - Discover emails by name and company
  • Chrome extension - Find emails while browsing websites
  • Bulk tasks - Process CSV files for batch verification
  • API access - Developer-friendly for custom integrations

Starting at $49/month – includes 1,000 searches and 2,000 verifications. Growth plan at $149/month adds 10,000 searches.

✓ Pros

  • Affordable pricing structure
  • 85% email accuracy verified
  • Excellent domain search feature
  • Simple, focused interface
  • Developer-friendly API
  • Free tier available for testing

✗ Cons

  • Email-only - no phone numbers
  • Limited company intelligence
  • No CRM integration
  • Smaller database than competitors
  • Credits consumed quickly
  • No intent or firmographic data
#9

Kaspr

LinkedIn-Focused Contact Data Extractor

Kaspr positions itself as a LinkedIn-first contact data tool with 500 million contacts in its database. The Chrome extension lives in your LinkedIn workflow, revealing emails and phone numbers as you browse profiles. It's designed for sales teams who spend most of their prospecting time on LinkedIn.

Data accuracy hovers around 80%, which is decent but not premium. Kaspr includes phone numbers on many profiles, which is valuable for cold calling campaigns. The platform uses a credit system that can feel restrictive, and the GDPR-compliant approach means some European contacts have limited data available.

Key Features

  • 500M+ contact database - LinkedIn-focused data collection
  • Chrome extension - Real-time reveal on LinkedIn profiles
  • Direct dial numbers - Phone numbers included on many contacts
  • Automation workflows - Schedule LinkedIn connection requests
  • GDPR compliance - European data protection built-in
  • CRM integration - Push contacts to major CRM platforms
  • Team collaboration - Share lists and credits across team

Starting at $49/month – includes 200 phone and email credits. Business plan at $99/month adds 500 credits.

✓ Pros

  • LinkedIn integration seamless
  • Phone numbers included
  • GDPR-compliant data
  • Automation features helpful
  • Team features included
  • Responsive customer support

✗ Cons

  • 80% accuracy below premium tools
  • Credit system runs out fast
  • Limited non-LinkedIn data
  • Higher tiers expensive
  • No intent data included
  • European data often limited
#10

RocketReach

AI-Powered Contact Search Platform

RocketReach claims 700 million professionals in its database, using AI to find contact information across multiple sources. The platform searches LinkedIn, company websites, social media, and public records to piece together email addresses and phone numbers. It's popular with recruiters and sales teams doing broad market research.

Data accuracy sits around 78%, which is lower than premium providers. The bulk lookup feature processes large lists, though accuracy can vary significantly. RocketReach works best when you need breadth over precision—finding any contact information on hard-to-reach prospects rather than guaranteed verified data.

Key Features

  • 700M+ professional profiles - Broad database coverage
  • AI-powered search - Multi-source data aggregation
  • Email and phone lookup - Both personal and work contacts
  • Bulk search - Process large CSV files
  • Chrome extension - Find contacts while browsing
  • API access - Programmatic data retrieval
  • Company search - Find all employees at target companies

Starting at $53/month – includes 80 lookups monthly. Pro plan at $105/month adds 200 lookups and advanced features.

✓ Pros

  • Massive 700M contact database
  • Finds hard-to-reach prospects
  • Personal and work emails included
  • Bulk processing available
  • Good for recruiting use cases
  • Simple interface

✗ Cons

  • 78% accuracy disappoints many users
  • Inconsistent data quality
  • Limited phone coverage
  • Lookup credits restrictive
  • No email verification included
  • Higher tiers get expensive quickly

Ready to get verified B2B contact data safely?

Stop worrying about LinkedIn bans and outdated contact lists. LinkFinder AI uses its own private network to deliver real-time verified data without risking your account.

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