So many promises of "verified leads" and "high deliverability" out there, man.

How do you separate the real value from the noise?

By the end of this article, you will have everything you need to go with the best B2B email list provider for your needs.

Ready? Let's go.

1. ListKit - Fresh, Triple-Verified B2B Email Lists

‍Here's a 1-minute tour of ListKit from our Co-Founder, Christian:

ListKit was founded by 7-figure outreach experts designed to deliver exceptional results for B2B email campaigns. With Triple-Verified leads, a robust 626M+ contact database, and affordable credit-based pricing, it has become a go-to choice for B2B sales teams and agencies seeking accurate, scalable data for their email lists.

Why Users ❤️ ListKit as their B2B Email List Provider

Triple-Verified Email Lists: Every email is triple-checked before they're ready for export from our 626M+ contact database. ListKit ensures sales teams work with accurate, reliable data. Say goodbye to bad emails and wasted outreach.

Cost-Effective and Scalable: Designed with sales managers in mind, ListKit’s flexible, credit-based pricing offers exceptional value, letting you scale campaigns efficiently without breaking the budget.

World-Class Customer Support: From onboarding calls to personalized list-building sessions, ListKit’s hands-on support ensures you get the most out of the platform. Need help? A real person is just a Zoom call or Slack message away.

Key features

• Triple-Verified Leads: Access a 626M+ database of verified, active contacts. ListKit’s multi-step verification ensures accurate emails and phone numbers, saving time, resources, and eliminating invalid leads.

• Intent Data for Smarter Targeting: Fill your B2B email list with prospects actively searching for your offer. Track engagement levels, customize filters, and focus on high-intent leads to improve outreach effectiveness and conversions.

• Visualize Your TAM: See job titles, industry breakdowns, and geographic reach with clear charts and maps. Adjust targeting instantly for better results with demographic and intent insights.

• Expert Support & Coaching: Join a Slack community of 1,000+ members, get weekly coaching from 7-figure entrepreneurs, and enjoy a free strategy call to maximize the ROI from your B2B email list.

• Seamless Integrations With Your Workflow: Export leads directly to HubSpot for automated email sequences, Smartlead for personalized cold outreach, or Google Sheets for shared team tracking—eliminating manual data transfers and boosting efficiency.

Read next:

• How to Build a Quality B2B Email List in 2025 (Step-by-Step)
• B2B Email Marketing Guide: Generate Leads That Convert
• Best Times to Send Cold Emails in 2025

Pricing: Free for 7 days. Starts at $97/mo (2000 email credits, 100 phone credits).

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‍Try 50 Free Leads With ListKit Now →

2. Lead411

Lead411 offers a reliable B2B contact database with direct dials, verified emails, and business growth insights. Known for its robust data accuracy, Lead411 simplifies B2B email list building for sales and marketing teams.

Key features

• Detailed Prospecting Tools: Access verified emails, direct dials, and growth data to target ideal B2B customers and streamline outreach.

• CRM Data Enrichment: Clean and update email addresses to ensure your CRM holds actionable, accurate data for impactful campaigns.

• Chrome Extension: Quickly gather verified contacts from LinkedIn or company sites without interrupting your workflow.

• Bulk Export and Custom Lists: Build targeted B2B lists and export data easily for tailored email campaigns.

• CRM Integrations: Sync data with over 25 CRMs to manage contacts seamlessly within your existing tools.

Considerations before purchasing

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Higher cost: Costly compared to some competitors, which may deter budget-conscious users.
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• Limitations in search filters: Some users may find limitations in the search filters when building lists, leading to inaccurate or irrelevant contacts being included.

Pricing

• Basic plus unlimited: $99/month per user 
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• Enterprise limited: Customized pricing plan

3. Cognism

Cognism is a premium sales intelligence platform offering verified B2B emails, direct dials, and intent data. With exceptional EU coverage and compliance, Cognism is ideal for businesses targeting global markets, especially in the EMEA region.

Key features

• Global Data Coverage with EU Focus: Access a vast database of verified B2B contacts, including emails and mobile numbers, with strong coverage in EMEA, NAM, and APAC regions.

• Privacy-Compliant and Secure: GDPR-compliant and ISO-certified, Cognism ensures safe handling of prospect data, making it a trusted solution for EU-focused campaigns.

• Verified Contact Information: Emails and numbers undergo rigorous validation, including SMTP and manual checks, to maximize deliverability and outreach success.

• Intent-Driven Prospecting: Identify decision-makers actively researching your offerings with intent data, enabling precise and timely outreach.

• Seamless CRM Integrations: Sync data effortlessly with Salesforce, HubSpot, Pipedrive, and more for streamlined operations.

Considerations before going with Cognism

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• High cost: Cognism’s pricing structure is considered high, which can be a significant investment for smaller businesses or startups.

• Not suitable for B2C businesses: Cognism is unsuitable for B2C businesses or individual entrepreneurs who might not benefit as much from its features and capabilities.

• Better alternatives for U.S. coverage: While Cognism excels in EU markets, other platforms may provide stronger data accuracy and reach for U.S.-centric campaigns.

Pricing

Cognism’s pricing is not publicly available, but contracts range from $15,100 to $103,000 per year, depending on organization size (source: Vendr).

Read next:

• How Cognism compares to ListKit Sales Intelligence
• Cognism vs ZoomInfo

4. Apollo

Apollo is a powerful sales intelligence platform designed for small to mid-sized businesses and sales teams. Known for its extensive database and robust engagement tools, it helps teams streamline outreach, manage leads, and close deals efficiently.

Key features

• Extensive B2B Database: Access 275M+ verified contacts and 73M+ companies, enabling sales teams to connect with decision-makers using accurate emails and phone numbers.

• Cold Calling Capabilities: Make and log calls directly with the in-app dialer. Features include automatic call recording, transcriptions, and CRM integration for seamless tracking.

• Advanced Search & Filtering: Target leads efficiently with 65+ filters like job title, industry, and location. Quickly refine searches to identify ideal prospects.

• Sales Engagement Tools: Schedule meetings, track conversations, and leverage analytics to improve sales performance. AI-powered features enhance outreach strategies.

Considerations before going with Apollo

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Customer Support is lacking sometimes: Many users report slow responses, unresolved issues, and unhelpful representatives, making problem resolution frustrating and time-consuming.

• Inconsistent Data Accuracy: Despite improvements, users still encounter incorrect contact details, email bounces, and mismatched phone numbers, especially in U.S. and international markets.
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• Frequent Bugs and System Downtime: Complaints about platform crashes, clunky UI, and recurring bugs disrupt workflow and lead to inefficiencies.

Pricing

Apollo.io’s pricing starts with a free plan offering 100 credits/mo, scaling to $59–$149 per user/month, depending on credits, features, and integrations. Annual Organization plans require a minimum of 3 users (source: Apollo.io).

Overall, Apollo is a capable tool for B2B sales prospecting, but users have noted challenges with inconsistent data accuracy, frequent system bugs, and slow, often unhelpful customer support. For those prioritizing verified data and a smoother user experience, exploring alternative platforms may be a worthwhile consideration.

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‍Read next:

• How Apollo compares to ListKit Sales Intelligence
• Apollo vs Zoominfo

‍Try 50 Free Leads With ListKit Now →

5. Hunter.io

Hunter.io is an all-in-one email outreach platform that simplifies connecting through email. Founded by Antoine Finkelstein and François Grante in 2015, Hunter.io was born out of the idea of making cold emailing more accessible and effective for professionals.

Key features

• Find and verify emails: Quickly locate verified B2B email addresses using domain search, protecting your sender reputation by minimizing bounces.

• Cold email campaigns: Create, send, and track email outreach efforts, including automated follow-ups for improved engagement.

• Google Sheets integration: Verify and manage email lists directly in Google Sheets for streamlined workflows

• Email verifier: Hunter ensures emails reach recipients by verifying addresses, reducing bounces, and protecting sender reputation.

Considerations before trying Hunter

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Limited Features on Free Plans: The free version offers restricted searches and verifications and NO export capabilities, limiting its utility for small-time users or freelancers.

• Inconsistent Data Accuracy: Users report outdated, inaccurate, or incomplete contact information, leading to email bounces and extra time spent verifying leads.

• ‍No phone number support: Hunter focuses solely on email-related features, offering no functionality for finding or verifying phone numbers, which limits its use for comprehensive outreach.

Pricing

Hunter.io’s pricing starts at $0 for the Free plan (offering 25 monthly lookups and 50 verifications, but no exports), with paid plans ranging from $49 to $499 per month. Costs depend on email search, verification limits, and features like priority support.

Hunter is a reliable choice for simple email prospecting needs but lacks the comprehensive capabilities required for more robust lead generation. Teams seeking phone number access or greater data accuracy at scale may find better alternatives.

6. Lusha

Lusha is a widely trusted platform for B2B company and contact data, boasting access to over 60 million decision-maker emails and 50 million direct dials. With an 81% data accuracy rate, Lusha helps teams connect with key prospects confidently and effectively.

Key features

• CRM Data Enrichment: Automatically updates Salesforce records with accurate contact and company data at scale, keeping your teams aligned with the most relevant information.

• Comprehensive Contact Attributes: Access 12 key attributes, including job titles, emails, and direct dials, to target the right decision-makers effortlessly.

• Advanced Search & Technographics: Use organizational charts, technographic data, and smart search filters to pinpoint ideal prospects and tailor outreach strategies.

• API Integration: Seamlessly enrich your internal systems with reliable contact data using Lusha’s robust API tools.

• Data Privacy & Security: ISO 27701-certified, GDPR- and CCPA-compliant, ensuring secure and privacy-conscious operations.

Considerations before trying Lusha

• Limited email and phone credits per plan may not offer competitive value for high-volume users.

• Despite frequent updates, some contact details can still become outdated.

• Customer support responsiveness has been reported as inconsistent by some users

Pricing

Lusha’s pricing starts at $0 with the Free plan, offering 50 email credits and 5 phone credits monthly. Paid plans range from $49/month (Pro) to $99/month (Premium) for increased seats, credits, and advanced features like CSV enrichment, job change alerts, and team management. A custom Scale plan is available for unlimited credits and enterprise-grade tools.

Overall, Lusha is a solid choice for accessing verified B2B contact and company data, but its limited credits, occasional outdated information, and inconsistent customer support may deter some users. Businesses with high-volume needs or those requiring premium support might consider exploring alternatives to maximize efficiency and ROI.

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Read next:

• How Lusha compares to ListKit Sales Intelligence
• Lusha vs Apollo

‍Try 50 Free Leads With ListKit Now →

7. Uplead

UpLead, founded by Will Cannon in 2017, offers a 95% data accuracy guarantee with a database of over 148 million B2B email addresses and 14+ million company profiles. Known for hand-picking leads, competitive pricing, and scalability, it’s a trusted solution for businesses seeking reliable B2B lead generation.

Key features

• 50+ Search Filters: Refine criteria to pinpoint high-quality, relevant leads for targeted campaigns.

• Real-Time Email Verification: Reduce bounce rates with verified, accurate email addresses.‍

• Account-Based Marketing (ABM): Personalize outreach for better engagement with different prospect categories.

• Chrome Extension: Capture verified data, including emails and phone numbers, directly from LinkedIn and websites.

Considerations before going with Uplead

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Limited Lead Volume for Niche Audiences: Users targeting specific personas or industries often find fewer leads than expected, particularly for smaller companies or specific geographies.

• Strict Billing Practices: Complaints about unexpected auto-renewals, challenges canceling subscriptions, and difficulty accessing previously paid-for credits.

• High Costs for Limited Features: For smaller businesses, the cost of credits and plans may outweigh the platform’s value, especially given issues with data reliability.

• Customer Support Concerns: Mixed reviews on customer service responsiveness, with some users reporting slow or unhelpful support.

Pricing

UpLead offers a free 7-day trial for $0 offering 5 credits. Paid plans start at $99/month for the Essentials plan and go up to $199/month for the Plus plan. Pricing varies based on features and credit limits.

All in all, UpLead makes a solid choice for B2B email list building with real-time email verification and extensive search filters. However, compared to other alternatives on the market, Uplead offers pretty limited credits given how much they charge.

For businesses prioritizing value and reliable data, exploring other platforms may be a more cost-effective solution.

‍8. Clearbit

Clearbit stands out as a top B2B email list provider by enriching customer data, uncovering new leads, and enabling personalized outreach at scale. It’s an excellent choice for businesses looking to improve audience understanding and refine messaging.

Key Features

• Advanced Data Enrichment: Enrich contact records with job titles, company details, social profiles, and technographics to better target and engage prospects.

• Prospecting Database & Lead Scoring: Use advanced filters to identify ideal leads and prioritize them with real-time scoring based on firmographics, technographics, and engagement signals.

• Seamless Integrations: Integrate with CRMs like Salesforce and marketing tools to streamline workflows and automate personalized outreach.

• Website Personalization: Boost conversions with tailored website experiences using visitor company data and browsing behavior insights.

Considerations before going with Clearbit

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Limited International Coverage: Data accuracy and availability for regions outside the US and EU, such as EMEA and APAC, are often unreliable or incomplete.

• Customer Support is occasionally unresponsive: Many users express frustration with the slow and unhelpful responses from the customer success team, often requiring multiple follow-ups for basic queries.

• Complex Learning Curve: Despite its user-friendly interface, mastering Clearbit’s full range of features takes time, which can be challenging for new users.

Pricing (pre-acquisition)

Ranges between $99 and $999 monthly according to online sources.

Clearbit delivers strong B2B enrichment but seems to fall short in international coverage, occasionally unresponsive support, and a steep learning curve according to some users, making it less ideal for businesses seeking immediate, reliable solutions across diverse global markets.

Read next: How Clearbit compares to ListKit Sales Intelligence

9. ZoomInfo

ZoomInfo is a leading B2B email list provider primarily for enterprise companies, offering one of the largest and most accurate databases for sales teams to target, connect, and close high-value prospects efficiently.

Key features

• Comprehensive Database: Access a vast collection of B2B contacts with direct dials, email addresses, org charts, and technographics for precise targeting.

• Intent Data & Advanced Filtering: Identify companies researching your solutions and filter prospects by industry, size, and location for higher conversions.

• CRM Integrations: Seamlessly sync data with Salesforce, HubSpot, and other platforms to maintain up-to-date and actionable records.

• SalesOS: Integrates sales intelligence, engagement tools, and automation to streamline prospecting and outreach.

Considerations before moving forward with ZoomInfo

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Hefty Enterprise Price Tag: ZoomInfo's pricing is not public but online sources state that they hover at around $14,995 per year with a minimum two-year agreement, making it prohibitively expensive for small businesses.

• Steep Learning Curve: The platform's extensive features may be difficult for beginners to navigate and master.

• Data Overload: The sheer volume of information can overwhelm users without a clear strategy.

How much does ZoomInfo cost?

ZoomInfo’s pricing starts at $14,995 per year with a minimum two-year agreement, according to online sources, and can go up to $40,000 per year depending on features and user licenses.

While ZoomInfo delivers top-tier data and powerful tools, its high cost and complexity may not suit smaller businesses. For budget-conscious teams seeking robust data quality, exploring alternative options may be more practical.

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‍Read next:

• How ZoomInfo compares to ListKit Sales Intelligence

• Lusha vs Zoominfo

‍Try 50 Free Leads Now With ListKit Instead →

9. CloudLead

CloudLead provides human-verified B2B data, offering global coverage and custom insights to optimize outbound marketing. With tailored lead lists, enrichment, and cleansing, CloudLead enables sales and marketing teams to target ideal prospects effectively and boost ROI.

Key features

• Global Data Coverage: Access verified B2B data from EMEA, NA, LATAM, and APAC regions.

• Lead Enrichment & Cleansing: Enhance databases with firmographic and technographic details while reducing data decay.

• Custom Lead Lists: Build lists tailored to specific business needs and Ideal Customer Profiles (ICPs).

• Lead Scoring: Prioritize high-conversion leads for better productivity and ROI.

• Target Best-Fit Accounts: Request tailored sample lists to align with outreach campaigns.

Considerations before going with CloudLead

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• No predictive analytics: Lacks advanced features like predictive analytics and AI-powered recommendations.

• Not Ideal for Complex Requests: Some intricate or highly specific data searches may not yield optimal results.
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• Steep learning curve: It may require a learning curve for new users.

Pricing is not public

Starter, Growth, and Professional plans are available; pricing is provided upon request.

CloudLead is a reliable B2B data provider, known for its human-verified leads and personalized support. However, its slower lead delivery, occasional data gaps, and limitations with complex requests may not suit businesses needing faster or more automated solutions.

11. Snov.io

Snov.io is an all-in-one email CRM platform catering to businesses focused on streamlined email marketing and outreach. With tools for finding, verifying, and utilizing contact data, Snov.io supports over 400,000 users globally, including startups and Fortune 500 companies.

Key features

• LinkedIn Prospect Finder: Target and connect with leads directly on LinkedIn, enabling automated outreach.

• Extensive Integrations: Synchronize workflows with over 5,000 tools without requiring coding skills.

• Multilingual Support: Operates in multiple languages, catering to global users.

• Email Verifier: Ensures clean contact lists with accurate email verification.

• Mobile Features: Perform tasks on the go with mobile-friendly tools for flexibility.

• Website Technology Checker: Analyze website tech stacks for informed business strategies.

Considerations before going with Snov

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Occasional Email Accuracy Issues: Users report challenges with inaccurate or unverified emails, leading to bounce rates or ineffective outreach.

• Some Users Have Difficulty With Email Management: Difficulties in managing email imports, campaign personalization, and maintaining email reputation.

• Learning Curve: New users often face a steep learning curve due to the platform's extensive features and interface.

• Email Errors: Problems with email verification accuracy and domain-specific settings disrupt campaigns.

Pricing

Snov.io offers flexible pricing to suit different needs. The free trial provides 50 credits and essential tools for $0/month. The Starter plan ($39/month) includes 1,000 credits, unlimited campaigns, and integrations, while the Pro plan ($99/month) adds 5,000 credits, advanced campaign controls, and prioritized support.

Snov.io is a versatile platform offering comprehensive email marketing and lead generation tools, but it may feel excessive for businesses seeking a simple B2B email list. Occasional bugs, email inaccuracies, and a steep learning curve are also notable drawbacks.

Read next: How Snov compares to ListKit Sales Intelligence

12. Seamless AI

Seamless.AI positions itself as a powerful B2B email list provider, leveraging AI to deliver updated contact and company data. Its goal is to help users efficiently build prospect lists, verify information in real time, and integrate seamlessly into workflows.

Key Features

• AI-Powered Contact Finder: Searches the web for emails, phone numbers, and social profiles, ensuring updated contact details.

• Real-Time Verification: Reduces bounce rates and improves email deliverability by verifying contact info.

• Chrome Extension: Captures leads directly from LinkedIn and websites, simplifying data collection.

• CRM Integrations: Syncs with platforms like Salesforce and HubSpot for streamlined lead management.

Considerations before trying Seamless

Based on user reviews from verified platforms like G2, Capterra, and SoftwareAdvice, we’ve distilled these recurring pain points to provide an honest evaluation:

• Data Accuracy Issues: Users frequently report outdated or incorrect contact details, affecting campaign efficiency.

• Complex Interface: The extensive features can overwhelm users looking for a simple solution.

• Buggy Integrations: Problems with the Chrome extension and CRM connectivity can disrupt workflows.

• "Overhyped" AI Capabilities: The AI often fails to identify contacts that basic searches easily uncover, some users report.

Pricing

Seamless.AI’s pricing isn’t publicly available and requires contacting their sales team. However, basic plans reportedly start at $147/month annually, with enterprise solutions costing up to $91,900/month for large organizations. They do offer a freemium plan that include 50 credits.

While Seamless.AI offers a wide range of features for building B2B email lists, its data accuracy concerns, steep learning curve, and underwhelming AI according tosome users might make it less appealing for those seeking straightforward tools. Alternatives like ListKit focus on simplicity and reliability, avoiding such pitfalls.

If you're curious, find out why users prefer ListKit over Seamless Ai here.

13. RocketReach

RocketReach is a versatile B2B email list provider offering an extensive database and AI-driven tools for prospecting, lead generation, and data enrichment. It's designed to help businesses efficiently create targeted email lists, streamline outreach, and enhance engagement with prospects.

Key Features

• Advanced filters to identify contacts by job title, company, location, and more.

• AI-driven search suggestions for better targeting.

• Personalized email creation for tailored outreach.

• Seamless CRM integrations to enrich and update contact data.

Considerations before going with RocketReach

• Outdated Contacts: Users frequently encounter contact details that are no longer accurate or up to date.

• Inaccurate Data: The platform occasionally provides incorrect information, leading to inefficiencies.

• Alternatives offer better value-to-cost: Many users feel the cost is high compared to alternatives offering similar features.

Read next: How RocketReach compares to ListKit's B2B Email List Builder

Pricing

‍RocketReach offers a Free Plan with 5 lookups per month. Paid plans start at $70/month and goes up to$300/mo based on email lookup and export needs.

RocketReach is a reliable B2B email list provider, but its pricing and data accuracy can be limiting. For cost-effective, high-volume solutions with Triple-Verified data and robust support, alternatives like ListKit offer better value and scalability.

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