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B2B Data Providers: How to Choose One, and When You Don't Need One
8 min read

B2B Data Providers: How to Choose One, and When You Don't Need One

A
Akash MunshiOctober 13, 2026

B2B data providers sell company and contact records you can search, export and sync to your CRM. Choose one by testing coverage on your own accounts, checking accuracy against records you know, and reading the compliance and contract terms before the demo. If your list is small and your signals are recent, you may not need one at all.

This is a buyer's guide to paid providers. For enrichment tools that fill specific fields, see our comparison of data enrichment tools. Prices are as of October 2026.

What types of B2B data providers are there?

B2B data providers fall into five types, and most buying mistakes come from comparing across types.

  1. All-in-one contact databases sell contacts, companies and often outreach in one seat. Apollo, ZoomInfo, Lusha, UpLead and Seamless.AI sit here.
  2. Compliance-first contact providers focus on verified mobiles and European data. Cognism is the main example.
  3. Company-data and registry providers focus on firmographics, hierarchies and identifiers. Dun & Bradstreet and Crunchbase sit here.
  4. Raw data and API providers sell datasets or per-record API access for your own pipeline. People Data Labs and Coresignal sit here.
  5. Account platforms bundle data with intent and advertising, such as Demandbase and 6sense.

Aggregators such as Clay sit on top of all five. They resell many providers through one interface rather than owning a database.

How do the main B2B data providers compare?

Ten providers cover most shortlists. The table shows each vendor's own claims and published pricing; treat database sizes as marketing figures until you test them.

Provider Type Vendor-stated coverage Pricing model (Oct 2026) Notable terms
ZoomInfo All-in-one 500M+ profiles, 122M+ companies [1] Contact sales; credits per export [2] SOC 2 Type II, ISO 27001, ISO 27701 [1]
Apollo All-in-one 240M+ contacts, 30M+ companies [3] $49–$119/seat/mo annual [4] Credits expire each cycle [4]
Cognism Compliance-first No single total on its pricing or compliance pages [5][6] Contact sales; 1 credit = 1 revealed contact [5] Scrubs 15 DNC lists [6]
Lusha All-in-one Not stated on pricing page Free 40 credits; Starter $49.90/mo [7] Monthly credits roll over up to 2x [7]
UpLead All-in-one 200M+ contacts, 19M+ companies [8] Essentials $99/mo, 170 credits [9] Professional is annual only [9]
Seamless.AI All-in-one 1.8B+ emails, 414M+ phones [10] No public pricing [11] Lists SOC 2 Type II, ISO [10]
Dun & Bradstreet Company data 650M+ companies, 550M+ contacts [12] Contact sales [12] D-U-N-S identifiers [12]
Crunchbase Company data Private-market signals [13] Pro $49/mo annual [14] SOC 2 Type II [14]
People Data Labs API Company and person APIs [15] Free 100 records; Pro $100/mo [15] ISO, SOC 2 Type 2 [15]
Coresignal API and datasets 70M+ companies, 907M+ employees [16] Mini $49/mo to Elite $5,000/mo [16] Public data only, no scraping behind login [16]

Cognism doesn't publish one database total on its pricing or compliance pages, so ask for coverage counts in your own regions during the trial.

How do you evaluate coverage?

Coverage is the share of your target accounts and buyers a provider actually has, not its total record count. A provider with 500M profiles can still miss your segment if you sell to German manufacturers or US public-sector buyers.

Test it directly:

  1. Export 200 accounts from your CRM: 100 customers, 50 lost deals and 50 target accounts.
  2. Ask each provider to match them and return the buyer titles you sell to.
  3. Count matched accounts, matched buyers per account, and fields filled for each.

Regional data varies more than headline numbers suggest. ZoomInfo, for example, states 79.6M+ companies in North America and 20.5M+ in Europe [1]. Its website visitor identification is "US-only," with GDPR markets out of scope [1]. If Europe is half your pipeline, weight that number, not the global one.

How do you check accuracy?

Accuracy is how many returned records are still true, and you can only measure it against records you already know. Use your 100 customers: you know who your champion is, what their title is and whether their email bounces.

Contact data decays fast. HubSpot cites MarketingSherpa's estimate that B2B data decays by about 2.1% a month, or 22.5% a year [17]. The US Bureau of Labor Statistics put median employee tenure at 4.1 years in January 2026 [18]. Our analysis of why B2B data decays by over 30% a year covers the newer estimates.

In our test on 100 accounts, Apollo found contacts at 98 companies, but 26 contacts held outdated titles [24]. Ask every provider for its own accuracy figure, then check it against your sample.

What compliance questions should you ask?

Ask how the provider collects data, what lawful basis it relies on, and whether it is registered where the law requires. You remain responsible for how you use bought data.

In the UK, the ICO says you can email corporate bodies without prior consent under PECR, but sole traders and some partnerships count as individuals, and data protection law can still apply to employees' named work emails [19]. The ICO also says direct marketing "may" be a legitimate interest under UK GDPR, but you must still apply its three-part test [20].

In California, data brokers must register each year by January 31 and, from August 1, 2026, process deletion requests from the state's DROP platform at least every 45 days [21]. Ask your provider whether it is registered and how it handles DROP requests.

Good answers look specific. Cognism, for example, states it relies on legitimate interest under GDPR Article 6(1)(f), notifies business contacts of their inclusion, holds ISO 27001, ISO 27701 and SOC 2 Type II, and scrubs phone numbers against 15 Do Not Call lists [6]. Also ask what happens to data you upload. Our analysis of where your prospect data goes shows how contributory databases reuse customer CRM and email data.

Why does refresh rate matter as much as size?

A huge warehouse of dusty, outdated contact cards beside a small station constantly refreshing cards from live web pages

A smaller dataset refreshed weekly often beats a larger one refreshed quarterly, because the records you need are the ones that just changed. Ask for refresh cadence per field: company records, job titles and emails change at different speeds.

Vendors describe this very differently. ZoomInfo says its data is "continuously refreshed" [1]. Coresignal says records are updated daily, weekly or monthly depending on the dataset, and in real time through its API [16]. HubSpot's data enrichment updates enriched records monthly [22]. Get the field-level answer in writing.

Which contract terms should you check before signing?

Check term length, credit expiry, seat rules and auto-renewal before the first demo. These terms cost more than list-price differences.

  1. Term length. HG Insights' standard contract is two years, with one-year terms at a higher price [23].
  2. Credit expiry. Apollo credits, including add-ons, expire at the end of each billing cycle [4]. Lusha's monthly plans roll unused credits over up to twice the limit, while annual credits reset at year end [7].
  3. Seat rules. Apollo requires every seat on one plan, and its Organization plan has a 3-seat minimum [4]. Cognism's plans include 5 seats [5].
  4. Usage rights. Apollo's standard plans are for internal use only; reselling or powering external products needs a separate agreement [4].
  5. Auto-renewal and cancellation. Lusha plans auto-renew [7]; Coresignal lets you cancel any time [16].

For tool-specific costs, see our Apollo pricing and Clay pricing guides, and Clay vs ZoomInfo for the aggregator-versus-database decision.

Which provider fits which team?

Match the provider to your motion, not to the biggest logo.

  1. Small outbound teams: Apollo, for per-seat pricing with sequencing included [4]. Compare it with Clay in our Clay vs Apollo guide.
  2. Teams selling into Europe or calling mobiles: Cognism, for its DNC scrubbing and GDPR posture [6].
  3. Enterprise teams with large territories: ZoomInfo, for breadth across contacts, companies and intent [1].
  4. Finance, procurement and account hierarchy work: Dun & Bradstreet, for D-U-N-S matching and linkages [12].
  5. Engineering-led teams building their own pipeline: People Data Labs or Coresignal, for API access without seats [15][16].
  6. Individual sellers on a fixed budget: Lusha or UpLead. Lusha charges 1 credit for an email and 5 for a phone number, with a free tier of 40 credits a month [7]. UpLead charges one credit per contact and advertises a 95% email accuracy rate, which you should check against your own sample [9].

If two providers tie on your test, pick the one with the shorter term and the clearer credit expiry rules. You can switch next year; you cannot get back unused credits.

When don't you need a B2B data provider?

You don't need a paid provider when your target list is small, your best signals are recent events, or the facts you need live on public pages. A team working 200 named accounts gets more from reading those accounts than from licensing 100 million records.

Most of the useful signals are public: job postings on careers pages and ATS feeds, DNS records for technology, filings, GitHub activity and review sites. Our list of 11 free B2B data sources shows where each one lives. The cost is research time, not license fees.

That research time is what Drevon compresses. It reads LinkedIn, Reddit, Sales Navigator, job boards, Crunchbase and company sites in your own browser session, and returns a brief where every claim links to its source. It runs on the AI subscription you already have and exports to Clay or HubSpot. Keep a provider for verified emails and phones at volume; use live research for the reason to reach out.

Frequently asked questions

Who are the biggest B2B data providers?

By vendor-stated coverage, ZoomInfo, Dun & Bradstreet and Apollo are among the largest. ZoomInfo claims 500M+ profiles, D&B 650M+ companies, and Apollo 240M+ contacts [1][12][3].

Are B2B data providers GDPR compliant?

Many claim GDPR compliance, but compliance depends on how you use the data too. The ICO requires a three-part legitimate interests test for direct marketing [20].

How much does a B2B data provider cost?

Published prices range from free tiers to $5,000 a month for API datasets. Apollo starts at $49 per seat per month annually and Lusha at $49.90 a month; ZoomInfo and Cognism do not publish prices [4][7][2][5].

How do I test a B2B data provider before buying?

Send 200 of your own accounts, including customers you know well, and measure matched accounts, matched buyers and title accuracy. Use free tiers or trials where they exist.

What is the difference between a data provider and a data aggregator?

A provider owns or licenses its own database. An aggregator like Clay resells many providers through one interface and charges per lookup.

Download Drevon to research your named accounts from live sources before you sign a data contract, or book a demo.

Sources

  1. ZoomInfo, "Data", accessed 2026-10-10.
  2. ZoomInfo, "Pricing", accessed 2026-10-10.
  3. Apollo.io, "Waterfall Enrichment (Apollo data size)", accessed 2026-10-10.
  4. Apollo.io, "Pricing and FAQ", accessed 2026-10-13.
  5. Cognism, "Pricing", accessed 2026-10-13.
  6. Cognism, "Compliance", accessed 2026-10-13.
  7. Lusha, "Pricing (Wayback Machine snapshot of 2026-09-30)", accessed 2026-10-10.
  8. UpLead, "Our data", accessed 2026-10-10.
  9. UpLead, "Pricing", accessed 2026-10-10.
  10. Seamless.AI, "Homepage", accessed 2026-10-10.
  11. Seamless.AI, "Pricing", accessed 2026-10-10.
  12. Dun & Bradstreet, "D&B Connect", accessed 2026-10-10.
  13. Crunchbase, "About", accessed 2026-10-10.
  14. Crunchbase, "Select product (plans and FAQ)", accessed 2026-10-10.
  15. People Data Labs, "Company enrichment pricing", accessed 2026-10-10.
  16. Coresignal, "Pricing", accessed 2026-10-10.
  17. HubSpot, "Database decay simulation (citing MarketingSherpa)", accessed 2026-10-10.
  18. U.S. Bureau of Labor Statistics, "Employee Tenure in 2026", accessed 2026-10-10.
  19. ICO, "Electronic mail marketing (PECR)", accessed 2026-10-10.
  20. ICO, "When can we rely on legitimate interests?", accessed 2026-10-10.
  21. California Privacy Protection Agency, "Data brokers", accessed 2026-10-10.
  22. HubSpot Knowledge Base, "Get started using data enrichment", accessed 2026-10-10.
  23. HG Insights, "Pricing guide", accessed 2026-10-10.
  24. Drevon, "Best sales intelligence tools in 2026, tested on 100 leads", accessed 2026-10-10.