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B2B data 16 May 2024

13 Best Email List Companies & Providers for Reps

Daisy Shevlin

Who the top email list companies are

These are the best email list companies for accurate data. 👇

  1. Kaspr
  2. Cognism
  3. GetEmail.io
  4. Lead411
  5. Lusha
  6. CloudLead
  7. Adapt.io
  8. EasyLeadz
  9. DemandScience
  10. Snov.io
  11.  Hunter.io
  12. LeadsPlease
  13. ZoomInfo

1. Kaspr

⭐  4.4/5 on G2


Kaspr is a lead generation company that offers easy access to email addresses and phone numbers for prospects on LinkedIn.

With the Chrome Extension, your sales team can get potential customers’ contact details. Use the Chrome Extension when you visit LinkedIn individual profiles or in bulk from lead lists, events, posts, and groups.

Kaspr enriches data with GDPR and CCPA aligned contact info on LinkedIn, Sales Navigator and Recruiter Lite.

There’s also a user-friendly dashboard to organize your leads. You can create lists, add notes, and set tasks here, making Kaspr an all-in-one prospecting platform ideal for SDRs and recruiters.

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Kaspr’s extensive data coverage includes:

⭐ Over 500 million phone numbers and email addresses
⭐ More than 200 million business profiles

This email list company also integrates with your preferred CRM software so that you can sync prospects’ data to other apps.

One of the advantages is that Kaspr offers unlimited B2B email credits for both its paid and free plans.

💡 For more details, take a look at the pricing page.


Kaspr’s users say that:


“I didn’t have to be trained on how to use Kaspr.”

“I think the widget works so well. The little wobble to let you know that contact information is available means you can work quickly through leads.”
Andy Earnshaw
Head of Operations at Visibly HQ

Main features

  • Chrome Extension that works on LinkedIn, Sales Navigator and Recruiter.
  • API access on all plans.
  • Data enrichment.
  • LinkedIn outreach workflows.
  • Bulk extract from LinkedIn profiles, lists, posts, groups and events.
  • GDPR and CCPA-aligned data.
  • Integrations with HubSpot, Pipedrive, Lemlist, Salesforce, and more.
  • Self-service and easy to get started.
  • Free forever plan or fairly priced paid plans.


Starts at $0, try Kaspr for free (with access to unlimited B2B email addresses). Paid subscriptions start at $49 per user per month.

2. Cognism

⭐  4.6/5 on G2

Cognism is a comprehensive B2B lead generation platform that includes email list-building capabilities.


It allows you to access a vast database of B2B contacts and create highly targeted email lists based on various criteria such as:

  • Industry.
  • Job title.
  • Company size.


Graphic of Cognism's data types


Cognism’s platform also provides real-time email verification to ensure the accuracy and deliverability of your emails. Their mobile numbers undergo thorough screening against international Do-Not-Call (DNC) registries.

Main features

  • Connect with 87% of your business list.
  • Diamond Data® (premium contacts) - phone-verified cell phone numbers.
  • Bombora’s intent data.
  • Cell phone data scrubbed clean against global Do-Not-Call lists.
  • Integrations with popular CRMs and sales tools.
  • EMEA, NAM, and APAC coverage.
  • GDPR and CCPA-compliant data.


Customized packages based on your needs, available on request. Cognism also offers 25 free leads when you sign up.

3. GetEmail.io

⭐  4.6/5 on G2


GetEmail.io is a handy email list tool for finding email addresses for contacts at B2B companies. It uses algorithms and data sources to provide accurate email addresses.

The tool is useful for cold email and finding new potential clients.


Screenshot of GetEmail.io web app sign up(Source: GetEmail.io)

Main features

  • Email address finder.
  • Easy-to-use Browser Extension.
  • Bulk email verification.
  • Real-time data.
  • Free plan availability.



GetEmail.io offers a free plan with 10 monthly credits so that users can try to check the deliverability rate. Their paid plans start at $49 for 300 credits to use per month, CSV download and more.

4. Lead411

⭐ 4.5/5 on G2


Lead411 is a sales intelligence platform and email list company. Users can build targeted direct mailing lists and find accurate contact information.


Graphic of Lead411 dashboard (Source: G2)

The platform gets data from various sources, including social media and public records. Lead411 aims to identify high-potential prospects for reps, marketers, and recruiters.


With Lead411, users can improve their sales and marketing efforts by focusing on high-quality mailing lists.

Main features

  • Sales intelligence for lead generation.
  • Real-time company updates and news alerts.
  • Integration with popular CRM platforms.
  • 7-day free trial.
  • Contact information for potential leads.


Lead411 offers a 7-day free trial with limited access to features. The pricing plans start from $99/month per user.

5. Lusha

⭐ 4.3/5 on G2

Lusha offers access to millions of business contacts. Like most other email list companies we’ve added here, Lusha has a Browser Extension and web app for accessing email addresses.


Graphic of Lusha's Extension(Source: G2)

Job titles, company names, and social media profiles are some of the key data points Lusha provides. The tool also provides sales representatives insights about their prospects, like trending interests.

Lusha’s data is from public records, networking sites, and partnerships with data providers.

Main features

  • Contact data access.
  • Additional details.
  • Data verification.
  • CRM and sales tool integration.


Lusha offers a limited free plan with a set number of credits. Pricing starts from  $36 per user per month.


ℹ️ Want to see how Kaspr compares to Lusha?

6. CloudLead

⭐ 4.8/5 on G2

CloudLead is a B2B data enrichment platform that provides accurate email lists.

It offers up-to-date B2B contact lists to help enrich your mailing lists and improve your email marketing and sales efforts. CloudLead’s platform has many key features like enrichment, real-time validation and an API.


Graphic of CloudLead product view(Source: CloudLead)

Main features

  • B2B data enrichment and email list building.
  • Real-time lead generation and validation.
  • API integration for seamless data transfer. 


CloudLead offers a free trial with limited access to its features. Pricing plans are available upon request.

7. Adapt.io 

⭐ 4.6/5 on G2

Adapt.io is another email list company. It provides access to verified data and enables users to create highly targeted email lists based on various filters.

Adapt.io also has email tracking and analytics to help you measure the performance of your sales cadences.


Screenshot of Adapt.io contact search function(Source: G2)

Main features

  • B2B data sourcing and email list creation.
  • Email tracking and analytics for campaign optimization.
  • Integration with popular CRM and sales tools.


Adapt.io offers a 7-day free with basic features. Pricing is available upon request.


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8. EasyLeadz

⭐ 4.6/5 on G2

Mr. E by EasyLeadz uses AI to provide users with verified data. Mr. E can provide phone numbers, business email addresses, and personal ones if required.

A tool like this helps lead to more sales conversations with a web app that provides valuable business insights. EasyLeadz also integrates with popular CRM and marketing tools to streamline outreach efforts.

Graphic from G2 for EasyLeadz by Mr E showing the Chrome Extension

(Source: G2)

Main features

  • AI-powered B2B contact information finder.
  • Advanced filters for precise targeting.
  • CRM and marketing tool integration.


EasyLeadz offers a free trial with limited access to its features. Pricing starts from $27 per month. 

9. DemandScience 

4.4/ 5 on G2

DemandScience is a demand generation platform that also provides an email list building service.

It offers a wide range of data services, including data cleansing and enrichment, to ensure the accuracy of your email lists. DemandScience also provides lead nurturing and scoring solutions to enhance your marketing campaigns.


Graphic of data filters down in DemandScience(Source: DemandScience)

Main features

  • Demand generation and email list building.
  • Data cleansing and enrichment for better data quality.
  • Lead nurturing and scoring for improved conversions.


You’ll need to contact the sales team to get the pricing for DemandScience.

10. Snov.io 

4.6/5 on G2

Snov.io is an all-in-one email outreach platform with an email verifier, too.

Key features for Snov.io include the email finder, direct mail campaigns, and LinkedIn Chrome Extension. There’s also a Sales CRM attached to this email list company, with deal loss analytics.


Graphic showing how to find data on LinkedIn with Snov.io(Source: G2)

Main features

  • Email address finder and verifier.
  • Automated email outreach campaigns.
  • Integration with popular CRM and email marketing tools.
  • Direct mail campaigns with unlimited follow-ups.


Free trial: Snov.io offers a free plan with limited access to its features. Pricing starts from $30 per month. 

11. Hunter.io 

4.4/5 on G2 


Hunter.io is an email search and verification tool that helps you find email addresses associated with a domain or specific person.

It’s an excellent resource for building targeted email lists for outreach and marketing purposes. Hunter.io also provides email verification services to make sure emails reach the right contact list.


Graphic showing under searches for contact data on the Hunter.io website (Source: G2)

Main features

  • Email address search and verification.
  • Chrome Extension for easy access.
  • Bulk email verification for data hygiene.


Hunter.io offers a free plan with limited access to its features. Pricing starts from £28 (approximately $35) per month.  

12. LeadsPlease

⛔ No G2 ratings yet


LeadsPlease is one of the more traditional email list companies. It offers business email lists that are sent as CSV files. Its website says that it has a +93% business list accuracy guarantee. The data is claimed to be updated every 30 days.


In their B2B database, LeadsPlease has more than 10 million businesses to choose from. You’ll just need to provide them with your search criteria.

Main features 

  • Search from over 10M businesses to find email addresses.
  • Various search criteria include number of employees, annual sales and years in business.
  • +93% B2B data accuracy.


Pricing for LeadsPlease depends on your criteria, so you’ll need to get in touch to find out more.

13. ZoomInfo

⭐ 4.4/5 on G2 


ZoomInfo is another well-known premium sales intelligence platform. They’ll also help you to create B2B email lists. The platform is pretty big, with many additional features besides prospecting tools.


As well as email addresses, ZoomInfo will also provide you with intent data, org charts, firmographics, and a contact tracker.


Graphic of contact search in ZoomInfo as seen on their website(Source: ZoomInfo)

Main features

  • Buyer intent data.
  • Org charts, firmographics and contact tracker.
  • Extensive range of integrations.


ZoomInfo doesn’t show its pricing on the website. You can, however, trial the platform for 14 days.



Got questions about email list companies? We’ve got answers for you! Check out these. 👇

How do I get an email list of companies?

There are several ways you can find an email address for free. Aside from all the tools outlined in this list, you could:


  1. If you use another B2B data provider, you’ll need to check how many email addresses they have (Kaspr has more than 500M phone numbers and emails).
  2. Find the email address manually on LinkedIn.
  3. Check trade publications or company websites.
  4. Use an email verifier, and there are plenty of tools out there.
  5. Search Google using the parameters.
  6. Guess the email format.
  7. Just as the prospect for it.

How do I get a free email list?

For B2B companies looking for email addresses, Kaspr is a free mailing list solution. 


It makes it easy for users to get the emails they need by enriching data on LinkedIn. This can be done by individual profiles or in bulk from lists on LinkedIn’s search function, groups, events and posts.


Unlike many other email list providers, with Kaspr, there’s also the opportunity to get unlimited access to email addresses. This is available on all paid plans as standard and on the free plan when you invite three colleagues to sign up for Kaspr.


Graphic of how to use Kaspr to show a contact's email address

The freemium version of Kaspr presents a great opportunity to explore Kaspr’s capabilities thoroughly. You can test Kaspr’s enrichment workflows for B2B emails, basic API access and lead management capabilities.


👉 Best of all, it’s really easy to get started with Kaspr. Sign up now.

Why should I use email lists?

Email lists, provided by reputable B2B email list providers, mailing list companies, and email marketing services, make prospecting easier by providing accurate data.


When you use targeted email lists, you can deliver personalized and relevant content to your audience. Data providers help improve engagement rates and conversions by providing email addresses that lower your bounce rate. 


Unlike generic email blasts, a well-segmented email list allows you to tailor your messages to specific customer segments, ensuring that your communications resonate with the right people.


Using these reputable email list companies and providers is essential to accessing data aligned with important regulations like GDPR and CCPA.


With a reliable provider, you can ensure that your email lists are clean and accurate, reducing the bounce rate and enhancing deliverability. It’s always nice to know your emails are actually getting through, hey? 📩


Email lists also enable you to segment your audience based on various criteria, such as demographics, interests, and purchase history, leading to more targeted and effective marketing efforts.

Can you legally buy email lists?

While it’s legal to purchase email lists from certain providers, it’s also crucial to approach this practice with caution and adhere to privacy regulations.


Buying contact lists without explicit recipient consent can lead to spam complaints and damage your sender’s reputation.


It may also result in non-compliance with data protection laws such as GDPR and CCPA.


There’s also the fact that a lot of email lists can come with contacts that don’t match your ICP or wouldn’t have any interest in buying your software. There’s also no guarantee of how up-to-date the data is. Purchased email lists often tend to be years out of date.


Both compliance concerns, data accuracy and the fact that only you know your ICP inside-out are good reasons to use a data provider for email lists instead. As mentioned in this article, companies like Kaspr, Cognism and Lusha allow B2B companies to extract the contact data they need.


Using data providers to create email lists ensures that you align with GPDR and CCPA since permission measures are in place. The data is also much higher in quality. Kaspr, for instance, updates its contact info in real-time, so your sales teams don’t need to worry about data that is out of date.


Finally, reps and recruiters can be super targeted. You’ll be able to access the contact details of the people you’d like to reach out to rather than a random, jumbled list of what’s available to the email list provider.

Better than traditional email lists

Want to try Kaspr for free? Discover the email addresses you need today with Kaspr, an all-in-one prospecting tool available for free. 


Sign up now and become one of the 50K+ companies that use Kaspr.

✅ No credit card is needed to sign up.
✅ GDPR and CCPA aligned.
✅ Unlimited B2B email credits.
✅ Over 500M phone numbers and email addresses.
✅ More than 200M business profiles.
✅ Comprehensive all-in-one prospecting tool.
✅ Fully self-service platform.
✅ Customizable plans to suit your needs.


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