Struggling to reach decision-makers who matter?
In the ultra-competitive world of B2B sales, spray-and-pray tactics just don’t cut it anymore. Whether you are chasing qualified leads in tech, healthcare, or finance, one thing is clear: your outreach is only as powerful as the list it’s built on.
That’s where high-quality B2B data providers come in; fueling your pipeline with verified, compliant, and segmented contacts that convert. But not all contact list providers are created equal. Some overcharge and underdeliver. Others lack data accuracy or bombard you with bounced emails.
Now,
You will ask which ones are worth your time and money in 2025?
We have done the digging and ranked the 15 best B2B data providers trusted by marketers, sales pros, and demand-gen leaders worldwide. From laser-focused industry targeting to real-time verification and CRM-ready integration, this guide covers everything you need to choose smarter, prospect faster, and sell better.
Let’s dive into the ultimate B2B email list power lineup for 2025.
Top-Tier Providers for Robust Features and Comprehensive Data
1. eSalesClub
eSalesClub is widely recognized among B2B professionals as an elite provider of verified email lists, especially in the technology and SaaS verticals. With strong data hygiene and accuracy standards, it’s ideal for scaling targeted outreach efficiently.
Features
- 95% data accuracy (email and contact data)
- 180 Million global contacts
- Segmentation by industry, job title, company size, geography
- Higher email deliverability rate
- Free sample data
- GDPR, EDPS, ACMA, CASL, CCPA and CAN-SPAM Compliant
- Real‐time verification and bounce protection
- CRM integrations (Salesforce, HubSpot, Zoho)
- Intent data for active prospect identification
- Lists refresh every 45 days
Pricing
eSalesClub operates on a flexible, credit-based model, tailored to the customization and volume of data requested. Pricing depends on the depth of filters, segmentation, and industry specificity.
The larger your data order, the lower the per-contact cost, ideal for scaling outbound campaigns without sacrificing ROI.
Use Case
For professional marketers and SDR teams who need ultra‑targeted, legal‑compliant lists with high deliverability, especially when prospecting for specific roles or verticals.
Get started with eSalesClub today!
Fuel your outbound with data that actually converts
Contact Us Today!2. UpLead
UpLead is rated higher and praised for its robust data quality, real-time verification, and extensive search filters—often cited as a top‑tier provider in USA B2B lists
Features
- 95% email accuracy guarantee
- 160 million profiles worldwide
- Real‑time email verification
- Advance filters: role, industry, revenue, tech stack
- Chrome extension, intent data signals
Pricing
- Free 7‑day trial (5 credits)
- Essentials: ~$74/month
- Plus: ~$149/month
- Professional: custom
Use Case
Ideal for mid‑sized sales and marketing teams needing precise targeting, data verification, and integration with existing tools.
3. ZoomInfo
ZoomInfo is known for its comprehensive, high‑quality database and intent data. Frequently compared with UpLead as the premium industry standard.
Features
- Massive global contact database
- Direct dials, job titles, company info
- Intent signals showing active research behaviour
- Deep enrichment and firmographic data
- CRM and sales tech integrations
Pricing
Enterprise pricing, typically $500–$1,000+ per thousand contacts depending on volume and modules.
Use Case
For enterprise-level teams seeking rich contact intelligence, intent tracking, and advanced segmentation for high-stakes campaigns.
4. Cognism
Cognism is a GDPR‑ and CCPA‑compliant B2B data provider, offering targeted email lists for international campaigns
Features
- Global B2B contact database
- Email finder and bulk verification
- Domain search enrichment
- Consent‑based intent data
- CRM integration and bulk exports
Pricing
Custom pricing based on scope; mid‑range similar to UpLead/ZoomInfo depending on region and volume.
Use Case
Organizations targeting international audiences must prioritize compliance and data enrichment.
5. Seamless.AI
Seamless.AI is an AI-powered sales lead generation platform designed to help B2B professionals find and connect with the right contacts in real-time. Known for its automation and enrichment capabilities, it continuously scans the web to source verified contact information, making it an invaluable tool for SDRs, recruiters, and enterprise sales teams. Its standout value lies in volume-based lead generation with real-time data scraping and enrichment.
Features
- Real-time contact discovery using AI
- Email and phone number verification
- CRM integrations (Salesforce, HubSpot, Outreach, etc.)
- Chrome extension for LinkedIn scraping
- Contact enrichment and bulk export
- Daily lead credits and prospecting automation
- Sales script builder and outreach templates
Pricing
- Free plan: Limited daily leads (~50 credits/month)
- Basic Plan: ~$147/month/user
- Pro & Enterprise Plans: Custom pricing with higher limits and integrations
Use Case
Ideal for outbound sales teams and recruiters who need volume-based contact generation at scale. Seamless.AI is especially useful for top-of-funnel prospecting, where quantity matters and real-time enrichment can provide an edge in fast-paced outreach environments.
6. LinkedIn Sales Navigator
LinkedIn Sales Navigator is LinkedIn’s premium B2B sales solution, offering unmatched access to the platform’s professional network. With advanced search capabilities and behavioral insights, it’s a top choice for social selling and relationship-based lead generation. While not a traditional email list provider, its powerful filtering and direct messaging features make it indispensable for high-touch B2B outreach.
Features
- Advanced lead and company search filters
- Real-time lead recommendations
- InMail messaging (20–50/month depending on plan)
- CRM sync with Salesforce and Microsoft Dynamics
- Saved searches and lead tracking
- Buyer intent and job change alerts
- TeamLink to uncover warm introductions
Pricing
- Core Plan: ~$99/month/user
- Advanced Plan: ~$149/month/user
- Advanced Plus (Enterprise): Custom pricing with deeper CRM integrations and admin controls
Use Case
Perfect for relationship-driven B2B sales reps, account executives, and business development teams. Sales Navigator excels when building long-term relationships with decision-makers, particularly in enterprise sales, consulting, or recruiting, where warm outreach and personalization are crucial.
7. BetterContact
BetterContact is an AI‑powered enrichment platform aggregating data from over 20+ premium providers, offering access to 3 billion+ verified email and phone contacts with industry-leading accuracy, especially in the US, UK, and DACH regions.
Features
- Waterfall-based enrichment using multiple sources
- 99.5% email deliverability
- Combined email + phone records
- Multi-layer verification (carrier + geodata checks)
- API and Google Sheets integration for easy usage
- No-charge for invalid emails
Pricing
It starts at ~$15/month for entry-level, with ~200 email or 20 phone credits Higher usage tiers scale based on credits; precise volume pricing upon request
Use Case
Perfect for outreach teams, agencies, or consultants needing high‑coverage, ultra-accurate global contact data with minimal pricing surprises—especially when prospecting by both email and direct dial.
8. Kaspr
Kaspr is a real-time B2B lead generation and contact enrichment platform built specifically for LinkedIn prospecting. With its user-friendly Chrome extension, Kaspr lets you extract verified phone numbers and emails directly from LinkedIn profiles, making it a favorite among SDRs and recruiters focused on outbound personalization.
Features
- Chrome extension for LinkedIn scraping
- Real-time phone and email retrieval
- Lead enrichment with company insights
- Auto-sync to CRM tools
- Workflow automation and export features
- GDPR-compliant data sourcing
Pricing
- Free Plan: Limited access (~50 credits/month)
- Pro Plan: ~€49/month
- Business Plan: Custom pricing for teams
Use Case
Ideal for LinkedIn-first sales teams and recruiters who need verified contact data on-the-fly without leaving the platform. Great for real-time lead capture and quick outreach follow-ups.
9. Apollo.io
Apollo.io is an all-in-one sales intelligence platform offering a robust B2B contact database, email automation, and CRM-like features. It’s a favorite among growth teams for its scalability, accuracy, and combination of data and outbound capabilities.
Features
- 265M+ verified contacts
- Email finder, verifier, and enrichment
- Built-in email sequencing and A/B testing
- Chrome extension for LinkedIn sourcing
- CRM integrations (HubSpot, Salesforce, etc.)
- Intent data and buying signals
Pricing
- Free Plan: 10,000 emails/month + limited features
- Basic: ~$49/month
- Professional: ~$99/month
- Organization Plan: Custom pricing
Use Case
Best for startups and growth-focused sales teams who want both high-volume B2B data and built-in outbound automation in one platform.
10. DemandScience
DemandScience combines high quality contact data (~225M+ decision-maker profiles worldwide) with advanced account-based marketing (ABM) tools and predictive intent scoring to fuel pipeline growth for B2B marketers.
Features
- Global decision-maker database (225M+ profiles)
- Monthly refreshed intent signals using multi-source data
- Content syndication and ABM display campaigns
- Integrated publisher & lead-gen services
- Predictive intent targeting and campaign execution support
Pricing
- Custom pricing based on campaign scale, targeting scope, and service mix
- Best suited for mid- to enterprise-tier budgets
Use Case
Best for enterprise marketing teams running ABM or integrated campaigns—ideal when you need both high-quality contact data and campaign delivery support combined with predictive buyer intent.
11.Corpdata
Corpdata is a UK-based B2B direct‑marketing data provider with over two decades of experience. It offers GDPR-compliant, England‑wide business contact lists tailored for email, postal, and telemarketing campaigns.
Features
- UK business coverage across sectors and sizes
- Specialized trade and focus lists (e.g. IT, Telecom, Marketing)
- Same-day delivery and quality-guaranteed data
- Volume & multi-year license discounts up to 50%
- GDPR-compliant and regularly updated
Pricing
No fixed listed pricing—obtained via quotation, with discounts for big volumes and longer licenses
Use Case
Ideal for UK-based marketers or agencies executing direct marketing campaigns with UK-specific targets (e.g. trade and sector-specific firms), especially in regulated or public-sector segments.
12. MarketScan (Megabase™)
MarketScan’s Megabase™ is a definitive UK B2B database developed by merging three leading sources. Backed by unique monthly quality checks (~40 checks per record), it delivers expansive and precise UK company reach unmatched by single-source lists.
Features
- Combined data from three top-tier UK business repositories
- 40+ quality controls per record, refreshed monthly
- Broad coverage across all UK businesses, including smaller firms
- Exportable CSVs and integration-friendly formats
Pricing
Custom/license-based pricing, depending on dataset size and usage needs
Use Case
Optimal for UK marketers needing maximum coverage and data quality for large-scale prospecting, especially in sectors or segments with high density of small-to-medium enterprises.
13. DataGardener
DataGardener offers a unified B2B data ecosystem focused on UK businesses, lending intelligence, and responsible procurement needs. With HubSpot and Salesforce integrations, it provides structured intelligence and enriched company profiles for sales and compliance teams.
Features
- Rich firmographic, trade, property and financial data
- GDPR-compliant UK company data (17M+ companies, 5.5M active)
- Enrichment APIs and Chrome extension
- Prospecting, risk monitoring, and diversity indices
- Native integration with HubSpot & CRM systems
Pricing
Tailored pricing model based on data modules and API access; priced for B2B, procurement, and compliance teams
Use Case
Great for compliance, procurement, and revenue teams needing verified UK business intelligence across financial, risk, and operational dimensions integrated directly into CRMs.
14. Lusha
Lusha is a widely used B2B contact data platform trusted by over 1 million users, including sales reps, recruiters, and marketers. Known for its ease of use and accuracy, Lusha excels in providing direct dials and email addresses sourced via its Chrome extension and platform. With a focus on simplicity and compliance, it’s ideal for teams that prioritize quality over quantity.
Features
- Real-time email and direct dial discovery
- Chrome extension for LinkedIn and company websites
- Contact enrichment and segmentation
- Integration with Salesforce, HubSpot, Outreach, and more
- GDPR and CCPA compliance
- Lead scoring and filters by role, company size, revenue
Pricing
- Free Plan: 5 credits/month
- Pro Plan: ~$29/month/user (starts at 40 credits/month)
- Premium & Scale Plans: Custom pricing
Use Case
Ideal for sales and talent acquisition teams that rely on direct, accurate contact data, particularly for LinkedIn-sourced outreach, enabling rapid prospecting without data overload.
15. InfobelPro
InfobelPro boasts over 30 years in business intelligence, providing access to 375M+ global companies, with over 460 unique data attributes. Their API-centric approach supports firmographics, technographics, POI data, and historical linkages across geographies—fully GDPR/CCPA compliant.
Features
- Huge global B2B database: 375M+ companies, PR, POI data, corporate linkage
- 460+ structured data attributes (firmographic, technographic, contact)
- APIs and flat-file datasets for customizable usage
- GDPR and CCPA compliant
- Real-time updates and AI-powered cleansing
Pricing
Licensing or API-based pricing, custom quotes depending on volume and attributes requested.
Use Case
Ideal for large enterprises, mapping applications, risk assessment systems, and global marketing teams that require deep company intelligence—especially when linking physical location and corporate data at scale.
Key Criteria for Choosing a Best B2B Data Providers
- Data Accuracy
Prioritize providers with robust verification systems, frequent data updates, and high deliverability rates (preferably 90% or above). This ensures your outreach efforts are efficient and your bounce rates stay low. - Data Coverage & Depth
Examine the breadth and depth of the provider’s database. Look for comprehensive geographic coverage, industry relevance, and enriched data points such as firmographics, technographics, and decision-maker contact details. - Regulatory Compliance
Choose vendors that strictly adhere to data privacy laws like GDPR and CCPA. Compliance not only safeguards your business legally but also reinforces ethical outreach practices. - Integration & Compatibility
Ensure the provider integrates seamlessly with your existing systems, including CRM (Salesforce, HubSpot), marketing automation tools, and sales enablement platforms. Smooth integration saves time and enhances productivity. - Pricing Flexibility & Scalability
Assess the pricing structure, whether it’s subscription-based, credit-based, or custom. Choose a solution that is suitable for your current budget but also scales as your data needs grow. - Support & Onboarding
A responsive customer support team can make a big difference. Look for providers that offer strong onboarding, training resources, and ongoing technical support to maximize value from day one.
By evaluating these key factors, you’ll be better equipped to select a high-performing B2B data providers that supports your marketing, sales, and business development goals.
Tabular Comparison of Best B2B Data Providers
| Provider | Data Accuracy | Verification | CRM Integration | Pricing Model | Best For |
|---|---|---|---|---|---|
|
eSalesClub |
>95% |
Real-time |
Salesforce, HubSpot, Zoho |
Flexible |
Targeted, high-compliance B2B outreach |
|
UpLead |
95% |
Real-time |
Salesforce, HubSpot |
Subscription |
SMBs & mid-size sales teams |
|
ZoomInfo |
>95% |
Yes |
Multiple |
Enterprise Custom |
Enterprises needing depth |
|
Cognism |
High |
Yes |
Multiple |
Enterprise Custom |
Global campaigns with compliance |
|
Seamless.AI |
High |
Yes |
Yes |
Subscription |
High-volume lead generation |
|
LinkedIn Sales Navigator |
N/A |
N/A |
Salesforce, Dynamics |
Subscription |
Relationship selling |
|
BetterContact |
High |
Yes |
API, Google Sheets |
Subscription |
Multi-source waterfall enrichment |
|
Kaspr |
High |
Yes |
Yes |
Credit-based |
LinkedIn-based prospecting |
|
DemandScience |
High |
Yes |
Yes |
Custom Pricing |
Predictive buyer intent + campaign support |
|
Corpdata |
Moderate |
Yes |
Basic |
Quotation Based |
Focused on regulated UK sectors |
|
MarketScan (Megabaseâ„¢) |
High |
Yes |
Exportable files |
License-based pricing |
Efficient lead capture |
|
DataGardener |
Moderate |
Yes |
HubSpot, Salesforce |
Budget-friendly |
B2B, compliance, procurement insight |
|
Hunter.io |
High |
Yes |
Limited |
Freemium |
Freelancers, content marketers |
|
Lusha |
High |
Yes |
Yes |
Credit-based |
Sales & recruiting teams |
|
InfobelPro |
High |
Yes |
Yes |
API-based access |
Global mapping & POI with deep attributes |
Final Thoughts
When it comes to professional-grade B2B data providers, eSalesClub stands out as a compelling top-tier choice, balancing accuracy, intent-signal targeting, deliverability guarantees, and flexible integrations. UpLead, ZoomInfo, and Cognism follow closely, each excelling with its strengths from affordable real-time filtering to global intent intelligence.
For smaller teams or lean budgets, Adapt.io, Hunter.io, Snov.io, and Lead411 offer excellent value and practical setups.
Choosing the right B2B data providers can transform your pipeline.
Compare. Choose. Convert.
Get a Free Sample!FAQs
Look for verified, up‑to‑date data, clear segmentation filters, CRM integration, data compliance (GDPR, CAN‑SPAM), and accurate deliverability guarantees.
Yes, if the provider offers opt‑in or compliant data and you follow email marketing laws like GDPR, CASL, and CAN‑SPAM.
Top providers like eSalesClub, UpLead, Cognism and LakeB2B guarantee ~95% data accuracy with real‑time verification.
Most vendors update their databases regularly, ensuring accuracy and relevance.
Yes, platforms like eSalesClub offer seamless integration with popular CRMs.
When you need advanced intent data, global scale, deep enrichment, or additional insights, such as direct dials or technology tracking.
Yes most offer direct integration with CRM and automation platforms like HubSpot, Salesforce, Pipedrive, Zoho, plus API access for custom workflows.
