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Blog 19 September 2023

11 Best Email List Companies & Providers for Reps

Angela Atanasovska
Research & Content Associate @ Cognism

Who the top email list companies are

  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

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 LinkedIn Chrome Extension, you can instantly get the contact details of potential customers when you visit their individual profiles or in bulk from lead lists, events, posts and groups.

Sign up to Kaspr for free now
For access to unlimited email addresses.
Get started for free

Kaspr enriches data from free LinkedIn accounts, Sales Navigator and Recruiter while ensuring alignment with GDPR and CCPA regulations.

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


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, allowing you to sync prospects’ data to other sales applications. In general, Kaspr streamlines reaching out to potential hot leads.

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.”

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).

2. Cognism

⭐ 4.7/5 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:

  • Diamond Data® with 98% mobile phone accuracy.
  • Bambora’s intent data.
  • Mobile 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 that specializes in finding email addresses for contacts at B2B companies.

It has advanced algorithms and data sources to provide accurate email addresses, helping users expand their email lists with valuable contacts.

The tool is especially useful for sales outreach and connecting with potential clients and leads.

Main features:

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


GetEmail.io offers a limited free plan for users to try out their services, and for more comprehensive features, pricing plans are available upon request.

4. Lead411

⭐ 4.5/5 on G2


Lead411 is a sales intelligence platform that enables you to build targeted email lists and find accurate contact information for potential leads.


The platform gathers data from various sources, including social media and public records, to help reps, marketers, and recruiters identify high-potential prospects and reach out to them effectively.


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.
  • 14-day free trial.
  • Contact information for potential leads.



Lead411 offers a 14-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 contact data through its browser extension and web, enabling users to find the contact information of potential business connections easily.

Alongside essential details like job titles, company names, and social media profiles, Lusha also empowers sales representatives to get other valuable insights about their prospects, like trending interests.

The data is sourced from public records, professional 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 $29 per user per month.

6. Cloudlead

⭐ 4.8/5 on G2

Cloudlead is a B2B data enrichment platform that also provides email list building services.

It offers accurate and up-to-date B2B contact information to help you enrich your email lists and improve your email marketing efforts. Cloudlead’s platform allows you to build custom lists based on your target audience, ensuring your emails reach the right people.

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 a comprehensive sales acceleration platform that includes email list building features. It provides access to a vast B2B database, enabling users to create highly targeted email lists based on various filters.

Additionally, Adapt.io offers email tracking and analytics to help measure the effectiveness of campaigns.

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 3-day free with basic features. Pricing is available upon request.

8. EasyLeadz

⭐ 4.6/5 on G2

EasyLeadz is an AI-powered sales intelligence platform that provides accurate B2B contact information for lead generation.

It offers an intuitive interface to build targeted email lists and access valuable business insights. EasyLeadz also integrates with popular CRM and marketing tools to streamline your outreach efforts.

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 provides email list building services to help businesses reach their target audience effectively.

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.

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 

4.5/5 on G2

Snov.io is an all-in-one email outreach platform that includes email list building capabilities.

It allows you to find and verify email addresses from various sources, ensuring accurate email lists. Snov.io also offers email campaign management features, such as drip campaigns and follow-ups, to automate your outreach process.

Key features:

  • Email address finder and verifier.
  • Automated email outreach campaigns.
  • Integration with popular CRM and email marketing tools.


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 a popular 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.

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 $54 per month. 


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

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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