10 Compliant B2B Data Lists & Providers to Use in 2026

Did you know that 28% of marketing emails never reach their destination due to poor data quality?

Here's the reality - all but one of these outreach efforts could be going to waste before they even begin. Poor quality data doesn't just mean missed opportunities. It damages your sender reputation and could lead to serious compliance problems.

The risks are massive. Companies violating GDPR face fines up to €20 million or 4% of annual global turnover. CCPA violations can set you back between $2,500 and $7,500 per incident. The average data breach in 2023 came with a global price tag of $4.45 million.

Let's explore 10 outstanding B2B database options for 2026 that deliver quality B2B data with reliable compliance features. We'll look at everything from Persana's phone-verified Diamond Data® to providers that excel at live updates and CRM integration. You'll find the perfect solution that matches your business requirements.

1. Persana

Persana, a Y Combinator-backed company, stands at the vanguard of B2B data innovation. The company skillfully combines AI technology with data from over 75 sources to optimize sales prospecting and lead generation. Their platform has an impressive collection of over 100 million business email addresses and 60 million decision-maker contacts across 15 million company profiles. Sales teams looking for high-quality contacts will find this platform a resilient solution.

Best for GDPR-compliant European outreach

The regulatory environment is complex today. Persana shows its steadfast dedication to compliance through detailed tools that make data governance easier while meeting strict regulatory standards. B2B sales teams targeting European markets need this compliance framework. GDPR violations can lead to fines up to €20 million or 4% of annual worldwide turnover.

Persana handles compliance through transparent data sourcing and proper management of user rights. Sales teams can prospect confidently in heavily regulated European markets thanks to the company's focus on ethical data practices. Companies using Persana have seen a 95% increase in qualified leads and a 20x higher win rate compared to traditional methods.

Diamond Data® for phone-verified contacts

Diamond Data® technology is Persana's standout feature that delivers phone-verified contacts for better connection rates. Sales teams can connect with up to 87% of their prospect list using these Diamond-verified mobile numbers, which gives them a real advantage in reaching prospects.

The Diamond verification process has:

• Regular re-verification every 18 months to maintain exceptional connect rates

• Human verification to eliminate misdialed or incorrect numbers

• Clear identification with diamond icons in the platform interface

This verification system helps sales teams call numbers where they know someone will answer. Yes, it is working - companies using Diamond Data® report:

• 30% lift in conversion rates

• 80% connection rates

• Up to $400,000 in generated opportunities

Integrates with Salesforce, HubSpot, and more

Persana's value grows through continuous connection with popular CRM systems. The platform makes importing and managing contact collections easier through integration with major platforms including:

• Salesforce

• HubSpot

• Other leading CRM systems

Persana's Chrome extension for LinkedIn prospecting lets sales teams get key details about prospects directly from their profile pages. This integration ecosystem helps sales teams keep a synchronized view of their pipeline and make informed sales management decisions.

Persana's transparent credit-based pricing model grows with usage:

• Free: 50-100 credits/year ($0/month)

• Starter: 24,000 credits ($68/month)

• Growth: 60,000 credits ($151/month)

• Pro: 216,000 credits ($400/month)

• Unlimited: 600,000 credits ($600/month)

Each plan has unlimited users. Unused credits roll over to the next month (capped at 2x monthly limit). This gives teams of all sizes excellent flexibility.

The platform works well for sales teams targeting growing companies. Teams looking to reduce sales cycle time by up to 65% and those needing event-driven prospecting based on triggers like new CTO hires will find it valuable. Persana.ai offers AI-powered capabilities and compliant data that balance quality, personalization, and automation perfectly.

2. Apollo

Apollo.io is a detailed sales intelligence platform that serves over 160,000 companies with its big database of verified contact information. This powerful all-in-one solution helps B2B sales teams make prospecting easier, automate outreach, and boost conversion rates.

All-in-one platform for prospecting and outreach

The heart of Apollo's offering is an extensive b2b contact database with 210 million global contacts from 35 million companies. The platform stands out among other b2b data providers through its excellent data verification processes. It maintains a 91% email accuracy rate and less than 1% invalid direct phone numbers. Users can filter prospects using 65+ data points like firmographics, technographics, job postings, and revenue figures.

Apollo.io's multi-channel outreach capabilities make it different from traditional b2b email list providers. The platform lets users:

• Create personalized email sequences with A/B testing

• Make calls through built-in US or international dialers

• Track engagement through email open and click rates

• Schedule automated follow-ups across multiple touchpoints

The platform merges with major CRMs including Salesforce, HubSpot, Pipedrive, and Zoho. This keeps contact data, activity history, and outreach campaigns in sync across your tech stack.

AI-powered analytics and job change alerts

The business world changes faster than ever, and Apollo's job change alerts are a great way to get updates. With 53% of Americans changing roles last year, keeping b2b contact data accurate is tough. Apollo's automated notifications tell you when contacts in your database change positions. Each alert creates three potential leads:

1. Your original contact at their new company

2. Their replacement at the original company

3. The replacement's previous company

These alerts prevent CRM decay and identify new opportunities. Contacts in new roles are 3x more likely to buy from you because of previous interactions.

Apollo's AI capabilities add more value to the platform. The system uses real data (not just AI-generated insights) to automate research, scoring, and outreach. Sales teams can use AI to get pre-meeting insights, analyze calls, and create personalized messages. Companies using Apollo's AI report impressive results - 50% higher reply rates and major time savings on prospecting research.

Affordable plans for small teams

Apollo.io's pricing makes sense for smaller organizations that need high-quality b2b data lists. You get a free forever plan for beginners, plus three paid tiers from $49-$119 per user monthly with annual billing.

The free plan gives you database access with limited credits (about 100/month) and simple sequencing features. Teams can upgrade to paid plans as they grow. These plans offer more mobile and export credits, advanced filtering, intent data, and AI-powered features.

Apollo.io gives you exceptional value by combining multiple tools into one platform. A customer explains it well: "We were paying $18,000 for Outreach. ZoomInfo must have been another $15,000. When we did the migration Apollo was $12,000. We basically went from paying $35,000 for two tools to $12,000 for one. We cut our costs in half."

Small teams looking for affordable yet powerful compliant b2b data solutions will find Apollo.io offers a great mix of functionality, data quality, and price.

3. ZoomInfo

ZoomInfo dominates the b2b contact databases space with its massive data collection that reaches across continents. More than 35,000 sales teams worldwide trust this premium platform, which goes beyond being just a data vendor to become a detailed go-to-market intelligence ecosystem.

Extensive global database with intent data

The size of ZoomInfo's b2b database amazes users with its 34M+ company profiles and 200M+ professional profiles outside North America. Sales teams can reach prospects through 45M+ mobile phone numbers beyond North American borders. This makes ZoomInfo one of the biggest business contacts databases you can find.

The platform's real strength lies in its intent data capabilities. Its proprietary intent engine tracks signals from 210 million IP-to-Org pairings and over 6 trillion new keyword-to-device pairings each month. This big data collection happens on about 90% of available devices throughout the United States.

ZoomInfo stands out from other data vendors by combining live intent signals with contact information that's verified at over 95% accuracy. The data comes enriched with:

• Firmographics and technographics

• Daily data updates for timely action

• Guided Intent that helps prioritize trending topics with proven success

Best for large enterprises with complex needs

Large organizations with sophisticated go-to-market strategies benefit most from ZoomInfo. The platform serves enterprise teams through specialized products:

SalesOS helps sales representatives target accounts that already show interest in their solution. They get access to recommended decision-makers and verified contact details. Marketing teams can tap into intent data through MarketingOS to build targeted campaigns and personalize messages based on buying signals.

Enterprise users concerned about compliance can rest easy. ZoomInfo holds several independent privacy certifications including ISO 27701, TRUSTe GDPR Practices Validation, and TRUSTe CCPA Practices Validation. The core team of over 300 people works to gather, review, and verify information.

Custom pricing and CRM integrations

You won't find transparent pricing tiers with ZoomInfo - they work on custom quotes. While official prices stay private, industry reports hint at annual costs around $30,000 for typical setups. Larger enterprise deployments might reach $58,000 for about 21-23 seats.

The platform's smooth integration capabilities might justify this premium cost for organizations with complex tech stacks. ZoomInfo works well with many CRM platforms including:

• Salesforce

• HubSpot

• Microsoft Dynamics 365

• Pipedrive

• Zoho

These integrations optimize workflows to close more leads efficiently. To name just one example, intent data from SalesOS flows right into CRMs, marketing automation platforms, and engagement systems. Teams can automate alerts, trigger outreach workflows, and use AI for personalized campaigns.

ZoomInfo ended up becoming the premium choice among b2b data providers. It serves organizations that need extensive global data, advanced intent monitoring, and enterprise-grade compliance features best.

4. Lusha

Lusha stands out among b2b data providers with its powerful browser extension that delivers accurate contact information without unnecessary complexity. The platform's detailed b2b contact database serves over 1 million users and covers 280+ million companies. Quality verification takes priority over quantity.

Chrome extension for LinkedIn prospecting

A streamlined Chrome extension is the heart of Lusha's solution that combines smoothly with your prospecting workflow. The extension reveals verified contact details as you browse LinkedIn, company websites, or your CRM. You can start prospecting right after adding it from the Chrome web store.

Lusha excels at showing complete contact profiles with just one click. Users get access to:

• Direct phone numbers with high accuracy

• Verified business email addresses

• Job titles and seniority levels

• Company details including size and revenue range

The extension works naturally with Salesforce, HubSpot, and other major CRM systems. Your existing contacts get enriched instantly.

Real-time data updates and job change filters

Lusha refreshes its business contact data through advanced verification processes. The platform holds GDPR and CCPA compliance certifications among other SOC 2 Type II validation. Your outreach stays within regulatory limits.

Job change alerts have become a valuable feature as professionals switch jobs more frequently. Users receive notifications when contacts change roles or move to different organizations. Each alert creates two opportunities:

You can reach out to contacts at their new company with messages that reference your previous interactions. Their replacement at the original company might need new solutions too. This keeps your b2b contact database current and helps identify promising prospects when they're most likely to make decisions.

Ideal for small sales teams and recruiters

Small sales teams find great value in Lusha's high-quality compliant b2b data without spending enterprise-level budgets. Users report 40-50% better connection rates with decision-makers. Some have seen their contact rates jump from 5% to 20% - a 4× improvement.

Recruiting teams benefit from Lusha just like sales professionals. They can add accurate contact information to candidate lists, which reduces sourcing time and gets better responses. Different departments that need verified business contact information find Lusha useful.

The platform offers flexible credit-based pricing with a free tier that includes limited monthly credits. Organizations that value data quality over quantity will find Lusha affordable and accessible.

5. UpLead

Quality verification stands out as the deciding factor when looking for compliant b2b data lists. UpLead shines here by prioritizing verification quality over numbers. This 2017-founded B2B data provider has an extensive database with over 160 million B2B contacts, email addresses and 19 million global company profiles.

95% email accuracy guarantee

UpLead distinguishes itself among b2b data providers through its steadfast dedication to data quality. The platform confidently guarantees 95% accuracy throughout its database. Their AI-powered validation tools and thorough collection process back this promise.

The platform's accountability makes it special - you'll get an automatic refund for any bounced email. Sales teams can prospect confidently across their b2b contact database since they only pay for working contacts. This helps protect their sender reputation.

Real-time email verification and technographics

Email verification happens right away with UpLead. The system checks each email address live whenever you unlock a lead or export contacts. UpLead's CTO developed this unique "verification-as-a-service" system that acts as the final check before releasing data.

The verification system shows clear status indicators:

• Valid – Email server allows verification with 97%+ accuracy

• Invalid – Email fails verification (not charged)

• Accept All – Server accepts all emails whatever their validity

UpLead provides rich technographic data covering 27,000+ technologies. You can build targeted prospect lists based on specific tech stacks and find companies using tools like WordPress, Kissmetrics, or Salesforce.

Flexible pricing with free trial

The platform uses a simple credit-based pricing system. You can start with a 7-day free trial that comes with 5 credits. Each credit gives you access to one contact's details including verified email and mobile direct dial.

The paid plans grow with your business:

• Essentials: 170 credits monthly for $99/month

• Plus: 400 credits monthly for $199/month

• Professional: 1,000 credits monthly for $399/month

Choosing annual billing saves you 25% on all plans. Every plan has essential features like live verification, CRM integrations (Salesforce, HubSpot, Zoho, Pipedrive), and their Chrome extension for LinkedIn prospecting.

Companies using UpLead see remarkable results. Their pipeline increases by over $400,000 and ROI reaches 12,526%. These numbers come from the platform's intense focus on verification accuracy, which ensures messages reach the right people.

6. 6sense

6sense revolutionizes how B2B organizations find and connect with potential buyers through its AI-powered revenue platform, unlike traditional b2b data providers focused only on contact details. The platform analyzes over one trillion signals daily through its Signalverse™ data hub. Companies can identify and target high-value prospects with useful insights.

AI-driven intent data and account prioritization

6sense's sophisticated intent data collection system tracks buyer behavior across millions of B2B web pages. The platform's patented 6signal Graph connects over four billion IP addresses and processes 500 billion monthly signals. This system provides an unmatched way to identify accounts by capturing:

• Website visits and content consumption patterns

• Keyword research in B2B spaces

• Social media interactions

• Technology usage and adoption signals

The AI analyzes this information to determine buying intent. Teams learn not just who might buy, but when they're ready to purchase. Research reveals all but one of these accounts in your ideal customer profile are not ready to buy. 6sense pinpoints the ready ones.

Best for ABM and enterprise sales teams

Mid-to-large B2B enterprises using sophisticated account-based marketing strategies benefit most from this platform. Organizations managing complex buying cycles across multiple channels find its predictive capabilities invaluable.

6sense users report remarkable results - 454% ROI, 2x increase in average contract value, and 4x improvement in win rates. Ceros achieved a 72% increase in meeting-to-SQL conversion after using 6sense's predictive models.

Has firmographic and technographic insights

6sense enhances its b2b contact database with complete firmographic information like revenue ranges, employee counts, and industry-specific attributes. The platform monitors over 40,000 different technologies. Teams can segment precisely based on tech stack usage.

Sales teams craft highly tailored outreach with this informed approach. Sales representatives address specific business challenges, regulatory requirements, and integration considerations for each target account instead of generic messaging.

6sense distinguishes itself from other data vendors through its integrated approach to buyer intelligence. B2B organizations needing sophisticated intent monitoring and predictive analytics will find 6sense a powerful solution. It combines AI capabilities with extensive data coverage to reshape how teams identify, prioritize, and connect with high-potential accounts.

7. LeadIQ

LeadIQ has changed the prospecting process with its accessible Chrome extension that combines smoothly with popular sales platforms. This prospecting hub makes shared contact information capture possible and eliminates the need to switch between multiple systems. The result is better efficiency and productivity.

Streamlined prospecting with Chrome extension

LeadIQ's Chrome extension stands at the heart of its offering and connects your entire sales tech stack. The extension works with you as you browse LinkedIn or company websites and provides accurate contact data without platform switching. Sales professionals capture prospect information with a single click that updates their CRM and prospecting through their preferred sales engagement platform.

This simplified process delivers impressive results:

• Reduces prospecting time by up to 90%

• Makes immediate outreach possible through direct CRM and dialer integration

• Creates uninterrupted connection between Salesforce, Gong, and LinkedIn Sales Navigator

Users report the extension's accessible design "fits right into existing workflows" and "strikes that balance between efficiency and simplicity".

AI-powered email personalization

Scribe, LeadIQ's built-in AI writing tool, has changed how sales teams craft personalized messages. Sales representatives can generate complete, tailored emails for any prospect in seconds. This tool substantially improves productivity while keeping personalization at scale.

The AI-powered writing assistant delivers these benefits:

• Creates customized templates based on prospect data

• Adds firmographic, technographic, and behavioral information

• Works directly within business platforms like Outreach, Gong, or HubSpot

Users call Scribe "the best AI writing tool" they've tried, especially when writing sequences and personalized emails.

Great for Sales Navigator users

LeadIQ proves valuable to teams that rely on LinkedIn Sales Navigator through its deep integration capabilities. The tool mirrors contact lists from Sales Navigator and speeds up the process of pushing leads to sales tools.

Users call the "Scribe Anywhere" feature a "game changer" for representatives who work mainly within Sales Navigator. Teams can capture multiple prospects at once and enrich their LinkedIn leads with complete contact information live.

Sales teams prospect more efficiently and save hours each day per representative while maintaining data accuracy and compliance standards.

8. Hunter

Hunter.io makes building b2b email lists simple with its web tools that help you find and check email addresses. The platform has grown to over 6 million users and pulls data from 81 million websites. Data quality stays high because everything comes from public web sources.

Email finder and verifier with campaign tools

You just need a name and company domain to let Hunter's Email Finder track down professional email addresses. The system matches patterns to figure out the most likely email format, which takes the guesswork out of prospecting. Each email address gets a free check to make sure it works before you reach out.

The Email Verifier runs several technical checks without sending test emails. It looks at address format, domain records, and what mail servers say back. This full check helps protect your sender reputation by spotting:

• Valid emails (safe to send to)

• Invalid addresses (will bounce back)

• Accept-All domains (servers that take all emails no matter what)

• Disposable addresses (temporary emails you shouldn't use)

Hunter Campaigns ties everything together. You can send personalized cold emails right from the platform. This free tool blends with Gmail, Google Workspace, and Outlook accounts to get the best delivery rates.

Publicly sourced data with confidence scores

Hunter stands out from other b2b data providers by getting information only from public web sources. This method gets you contact details that you won't find on LinkedIn or other business contacts databases.

Each email comes with a confidence score that shows how likely it is to work. This helps a lot when you have Accept-All domains where delivery isn't certain. The system uses color-coded verification status - emails with a green "Verified" shield are good to use.

Best for freelancers and small businesses

Small teams just starting with email outreach love Hunter's free plan. It gives you 25 email searches and 50 verifications each month. The platform works great for marketers, recruiters, and bloggers who need compliant b2b data without breaking the bank.

Paid plans begin at $34 per month if you pay yearly. Every plan lets you add unlimited team members at no extra cost.

9. Clearbit (Breeze Intelligence)

HubSpot has acquired Clearbit (now Breeze Intelligence) that provides powerful data enrichment capabilities for b2b databases through its vast collection of company and contact information. This acquisition brings together Clearbit's rich data ecosystem with HubSpot's customer platform to create a strong solution for marketing and sales teams who need quality business intelligence.

Real-time enrichment and IP-to-domain mapping

Clearbit's immediate enrichment capabilities add over 100 B2B data points to every contact and company record, which come from 250+ public and private data sources. The platform analyzes billions of data points daily and converts unstructured information into standardized datasets.

Clearbit Reveal uses sophisticated IP intelligence to identify anonymous website visitors. This technology:

• Maps IP addresses to company domains with high precision

• Identifies companies showing buying intent based on website behavior

• Gives firmographic and technographic insights about visitors before form completion

• Learns through machine learning applied to hundreds of millions of new data points monthly

Teams can understand which products or solutions anonymous visitors might want based on their engagement patterns.

Strong integration with HubSpot

The integration between Clearbit and HubSpot has become stronger since the acquisition. The platform now offers data on over 20 million companies directly inside HubSpot, with rich firmographic, demographic, and technographic attributes for every company with a website.

Marketing teams can now:

• Enrich all or select contacts/companies in HubSpot according to field mappings

• Create informed segments for alerting and advertising

• Make websites, landing pages, and chat experiences more personal

Useful for inbound marketing teams

Clearbit changes how teams capture and qualify leads. The platform makes forms shorter by removing fields that it can automatically fill using just an email address.

Teams can now use shorter forms while collecting vital data for lead scoring and routing. This is a big deal as it means that teams using Clearbit see conversion rates jump by more than 50%, among other improvements in lead quality and sales efficiency.

Clearbit (Breeze Intelligence) combines data enrichment, IP intelligence, and smooth HubSpot integration. This makes it a strong choice for organizations that want to improve their compliant b2b data operations while boosting conversion rates and prospect intelligence.

10. SalesIntel

SalesIntel stands out by putting people first in an algorithm-driven data world. This b2b database provider's dedicated research team verifies each contact and maintains an exceptional 95% data accuracy. Their team re-verifies all contacts every 90 days to keep quality standards high, unlike automated systems.

Human-verified data with direct dials

SalesIntel's biggest advantage over other data vendors lies in its massive collection of mobile contact details over 48 million human-verified work mobile numbers. Sales teams find these direct dials incredibly effective. Representatives are 7x more likely to connect using SalesIntel's mobile numbers compared to switchboards or desk phones. Direct dials cut connection time from 22 minutes with switchboards to just 5 minutes.

RevDriver Chrome extension for LinkedIn

RevDriver Chrome extension optimizes prospecting on LinkedIn and company websites. Users can access verified contact information with one click without platform switching. Premium users get unlimited contact reveals and can ask for specific contact details through Research on Demand.

Best for high-volume outbound teams

SalesIntel helps teams that just need high outbound volume by cutting lead acquisition time by 85%. Teams can target precisely using the platform's detailed firmographic data. Research on Demand works like an on-call BDR team. SalesIntel delivers exceptional connection rates while maintaining strict compliance standards.

Conclusion

Choosing the right B2B data provider is a vital part of maximizing outreach effectiveness for sales and marketing teams. In this piece, we got into ten outstanding options that offer unique advantages based on your business needs.

Quality data has never been more important. Poor data quality means 28% of marketing emails don't reach their destination. This wastes resources and can harm your sender reputation. On top of that, it's absolutely essential to comply with regulations like GDPR and CCPA to avoid getting hit with penalties.

B2B data providers are evolving faster than ever. Persana delivers phone-verified Diamond Data® with great connection rates. Apollo.io blends prospecting and outreach with AI-powered analytics. ZoomInfo's extensive global database works well for enterprise needs. Lusha makes LinkedIn prospecting simple with its Chrome extension. UpLead backs its 95% email accuracy with a guarantee.

Some providers excel in specific areas. 6sense uses AI-driven intent data that's perfect for ABM strategies. LeadIQ makes Sales Navigator prospecting more efficient. Small businesses can use Hunter.io's affordable email verification tools. Clearbit shines at live data enrichment in HubSpot. SalesIntel stands out by refreshing human-verified contacts every 90 days.

Your ideal provider will depend on your target geography, outreach channels, budget, and compliance needs. Most platforms let you try before you buy with free trials or demos. You should test several options against your specific use cases to find what works best for your team.