Best B2B Data Providers (2026): 10 Tools Compared

Good sales starts with reaching the right person at the right company. A B2B data provider sells access to business contact details and company information, so you aren't copying names from websites one at a time. The catch is that data goes stale, and the rules on using it for cold contact vary by country.

This page lists ten providers in no particular order, sorted alphabetically. Three are well-known names and the rest are smaller or more specialised. I've taken each description from the provider's own website and directory listings, so check the current details on each site before you sign up. If you're building a wider plan, my guide to AI for B2B lead generation puts data in context.

B2B data providers at a glance

In the free plan column, Yes means the provider's own site describes a permanent free plan or free tier. Trial only means a free trial but no ongoing free plan. No means neither is stated. Free levels are usually small, so check what a credit buys.

Tool	Type	Good for	Free plan
Apollo.io	Database and outreach platform	Contact search with email sequences built in	Yes
Cognism	Compliance-led data	Contact data for European and global teams	No
Coresignal	Data and APIs	Company, employee and jobs records for projects	Yes
Crunchbase	Company intelligence	Funding and company research	Trial only
Explorium	Data platform	Credit-based business data lookups	Trial only
Kaspr	Contact finder	Emails and numbers from LinkedIn profiles	Yes
Lead411	Lead database	Contacts with growth signals	Trial only
People Data Labs	Data API	Person and company data for developers	Yes
SalesIntel	Verified contact data	Verified contacts with buying signals	Trial only
Swordfish.ai	Contact finder	Direct dial numbers and emails	Trial only

Ten B2B data providers

Apollo.io

Best for: Small sales teams who want contact search and outreach in one place, starting on a free plan.

Cognism

Best for: Teams selling into Europe who want contact data with a strong emphasis on data protection.

Coresignal

Best for: Analysts and builders who want company, employee and jobs records through datasets or an API.

Crunchbase

Best for: Researchers who want to find growing private companies and see who funds them.

Explorium

Best for: Teams who want to pull business data on demand using credits rather than a fixed list.

Kaspr

Best for: Freelancers and small teams who find prospects on LinkedIn and need a way to reach them.

Lead411

Best for: Sellers who want contact lists filtered by signs a company is growing or hiring.

People Data Labs

Best for: Technical teams who want person and company records delivered through an API.

SalesIntel

Best for: Sales teams who want contacts that people have checked, plus signals showing who may be ready to buy.

Swordfish.ai

Best for: Sales and recruitment teams who need direct dial numbers alongside verified email addresses.

What to check before you pick a B2B data provider

Data quality decides whether a provider earns its place. Ask these questions before you commit to anything.

• Where the data comes from. Providers gather details from public sources, contributors and their own research. Ask how, and how often, records are refreshed.
• Coverage in your market. A database that's strong in North America may be thin for the UK or Europe, and the reverse is true too.
• Verification. Find out whether emails are checked before you get them, and how the provider treats addresses that bounce.
• Fit for your size. Some providers suit a solo seller. Others are built for large teams with a dedicated sales operations person.
• Export and integrations. Check that you can move records into your CRM or spreadsheet without retyping them.
• Credits and limits. Many providers meter lookups, so see what counts as one credit and what happens when they run out.

UK GDPR and PECR: a short note on B2B data

Buying or finding a contact's details doesn't give you the right to contact them however you like. In the UK, the UK GDPR covers how you handle personal data, which includes a work email address that names a person. The Privacy and Electronic Communications Regulations (PECR) add rules for marketing emails and calls, with different treatment for limited companies and for sole traders. The US has its own rules, such as CAN-SPAM. I'm not a lawyer, so this isn't legal advice. Check the official guidance from the ICO and take advice for your own situation.

A few habits help whatever you decide: tell people who you are and why you're writing, include an easy way to opt out, keep a record of where each contact came from and delete records you no longer need.

Which type of B2B data provider suits which business

• Solo sellers and freelancers usually want a free plan, a browser extension and a small credit allowance.
• Small sales teams tend to need contact search, list building and a link to their CRM.
• Teams selling into Europe should look closely at where the data is sourced and how consent is handled.
• Researchers and analysts often prefer company-level data, funding information and exports.
• Developers may want an API they can call from their own software.

Whatever you pick, good data is only half the job. My list of lead generation mistakes to avoid covers what goes wrong once the names are in your hands.

Why a smaller B2B data provider can be a smart pick

Smaller providers often focus on one region, one job title group or one way of working, such as a LinkedIn extension or an API. That focus can mean fresher records for the people you want. They're also quicker to ask questions of and often easier to try on a small scale.

Before you commit, run a small test list through two providers and check a sample by hand. See how many emails bounce and how many numbers connect, and note how clear each provider is about its sources.

Do you make a B2B data or contact database product? Tool makers can ask to be considered for a featured place on this list.

Making your final choice among B2B data providers

Pick two that match your market and your way of working. Pull the same small sample from each, check it against what you know is true and look at how the export fits your CRM. Read the terms on how the data may be used. Keep the one that gave you the cleanest list, and write down what you'd ask the other maker.

Frequently asked questions

What is a B2B data provider?

It's a company that collects and sells business contact and company details, such as work emails, phone numbers, job titles and company information, so sales and marketing teams don't have to find them one by one.

Is it legal to use B2B data for cold email?

It depends on where you and the recipient are, and on whether the contact is a person or a limited company. In the UK, UK GDPR and PECR apply. This isn't legal advice, so check the ICO guidance for your own situation.

How accurate is purchased contact data?

Accuracy varies by provider and by region, and people change jobs often. Test a small sample before you commit and ask how often records are refreshed.

Can I use a free plan to build a list?

A free plan is a good way to test quality. Free allowances are small, so expect to build a short list rather than a large one.

What's the difference between a data provider and a scraping tool?

A provider supplies records it has already collected and maintains. A scraping tool collects public information from pages you point it at, and the rules of each site still apply.

How should I store contact data?

Keep it in one place, note where each contact came from, limit who can see it and delete records you no longer need.