Skip to content

The best B2B email list providers for 2023

A B2B email list is a contact list that contains B2B email addresses. They can either be grown organically, or they can be bought from a B2B email list provider. The former relies on manual prospecting to collect and collate data, whereas the latter automates the process, improving efficiency. 

Scroll or use the menu below to flick through everything you need to know about B2B email lists and the best B2B email list providers on the market 👇

Why should you use B2B email lists? | Where can you buy a B2B email list | Who are the top B2B email list providers? | What is the best B2B email list provider?

Cognism Demo

Why should you use B2B email lists?

There are different reasons to use B2B email lists, depending on your use case:


B2B sales teams waste a ton of time trawling through the web to find prospect email addresses which are often inaccurate and out of date. Email lists, on the other hand, can provide sales reps with timely, verified B2B data that they can use to support their cold emailing efforts. 


B2B email lists help small B2B marketing teams build their business contact database and get campaigns up and running. Meanwhile, they help established teams get campaigns running faster, while increasing their reach when promoting digital and physical events; a goal for every data driven marketing function.

Where can you buy a B2B email list?

There are a number of B2B email list providers to choose from in the market. But while many promise to save sales reps time and improve efficiency, some include bad data that hampers prospecting. And, ultimately, the less accurate your email list is, the less time-effective your cold outreach will be.  

Here are some key criteria you should be aware of before assessing your options: 

  • Cost
  • Additional features
  • Data quality
  • Compliance measures
  • Sales triggers and company data
  • Useability

Who are the top B2B email list providers?

Cognism | Megaleads | Medicoleads | Blue Mail Media | Thomson Data | ZoomInfo | Lead411 | Lusha | AeroLeads | CloudLead



Cognism’s global data coverage and accuracy make it the ideal platform for any B2B sales and marketing teams prospecting in multiple territories.  

With the platform, you can generate leads based on set parameters, so you can ensure the emails you receive will fall within your total addressable market

This data can then be utilised through their own outbound platform, making for a seamless, front-to-back, B2B prospecting experience.

What’s more, great lengths are taken to ensure the data provided is scrubbed against global DNC lists - making Cognism as safe as it is effective.

See our platform in action by hitting the button below 👇

New call-to-action


With a guarantee of 97%+ accuracy, a minimum of 85% deliverability, and a low cost, MegaLeads is a solid B2B contact database provider

MegaLeads claims to have one of the richest and most accurate USA executive databases, packed with full-record B2B prospects’ email addresses and phone numbers. 

They offer 200 free leads to get started, plus a free trial with no credit card commitment.


Medicoleads connects marketers with healthcare professionals. 

According to their website, they have the biggest, most reliable, and affordable medical mailing list - consisting of medical professionals from 120+ countries.

Medicoleads’ policies guarantee 85% email deliverability and 95% accuracy on other data fields. 

Blue Mail Media

Blue Mail Media’s data pool has the ability to reach more than 100M B2B executives across multiple regions and industries. 

Blue Mail Media claims to have an accuracy rate of 90-95% across its directory of B2B marketing lists.

The B2B email and mailing list provider configures its customised data per industry, geographic regions, demographics, size of the prospective market, and others.

Thomson Data

27% of US marketers have used Thomson Data, a B2B email list provider which follows GDPR-compliant practices.

They also offer some technology insights - such as cloud services, ERP, CRM, accounting, and productivity solutions.


ZoomInfo’s database offers 129M+ verified email addresses and firmographics, including 300+ attributes, insights, and recent activity.


According to its website, Lead411 offers inbox response verified emails that are 96% accurate, plus millions of verified contact records.

The provider has functionality for refining searches with sales triggers and a Chrome Extension, making it easier to hit your monthly contact allocation.


Lusha offers a solid product for locating B2B contact/company details. In terms of compliance, Lusha is CCPA-compliant and GDPR-aligned.

Their database hosts 60M email addresses and they offer five free contacts every month.

Check Cognism’s compliance credentials by reviewing the below infographic 👇

compliance checklist


AeroLeads offers a Chrome extension that can be used on LinkedIn, CrunchBase, AngelList, Xing, and more.

It’s similar to the Cognism Chrome Extension, in that you can click on any LinkedIn profile and generate contact information.

AeroLeads also offers an email verifier tool, which is said to reduce your bounce rate.


CloudLead is making waves - having won G2 awards for their marketing and sales intelligence.

They offer 20 free contacts and their solution integrates directly into your CRM. They also have in place a 100% verification guarantee.

Learn how to find accurate CEOs' emails and direct dials at scale.

What is the best B2B email list provider?

If you want broad-coverage, high-accuracy, and compliant B2B email lists, then Cognism is for you. 

Whether you’re prospecting in EMEA, AMER, or any other territory, we ensure that your sales and marketing teams aren’t held up by dead ends, and that you can reach relevant decision-makers in high-value accounts.

See what Cognism's customers say about the platform - press ▶️ to watch!


Book a demo with our sales team here 👇

Cognism Demo