Best B2B Data Providers in 2026: 12 Vendors Compared on Coverage, Accuracy, and What They Cannot Tell You

TL;DR: The best B2B data providers in 2026 fall into three groups. ZoomInfo and Cognism sell the deepest verified phone data on contracts with a median near $33,000 a year. Apollo, Lusha, UpLead, Kaspr, RocketReach, Lead411 and Seamless sell contact data by the seat or the credit, from free to about $150 a user per month. Clay and Leadfeeder aren't databases at all but an aggregator and a visitor-identification tool that sit on top. All of them answer "who exists and how do I reach them". None answers "who is buying this quarter". Below: real 2026 prices including the quote-only vendors, the only independent accuracy tests we could find, and a decision frame by team size.

Vendr tracks 1,574 ZoomInfo purchases. The median buyer pays $33,500 a year for a list of people who, within a year, change job titles at a rate of about two in three.

That isn't an argument against ZoomInfo. It's an argument about what every B2B data provider sells. You know the feeling if you've exported 2,000 contacts, run a sequence, and watched 3% reply. The data was mostly right. The timing was mostly wrong.

This comparison of B2B data providers covers 12 vendors with prices checked on 7 October 2026, database claims read off the vendor's own pages, the few accuracy tests not run by the vendor being tested, and a "what it cannot tell you" line for each. We build a signal tool that sits on top of these databases, so we have a point of view. We'll say where it applies and where a database alone is the right buy.

What a B2B Data Provider Does (and the One Question It Cannot Answer)

A B2B data provider compiles business contact and company records, including names, job titles, work emails, direct dials, mobile numbers, firmographics and technographics, and sells access to them by seat, credit or annual contract. Sales teams use a B2B contact database to build prospect lists, enrich CRM records and reach decision-makers they haven't met.

That definition covers every B2B data provider here, from a 500-million-contact warehouse to a Chrome extension that reveals one phone number at a time. It also marks the category's edge. A B2B contact database tells you a VP of Sales exists at a 200-person company, what their email is and which CRM they run. It can't tell you that they posted about missed quota last Tuesday, or that their company opened four SDR roles this month.

Those are buying signals, and they live in a different layer. We'll come back to that at the end. First, the vendors.

The 12 Best B2B Data Providers in 2026 at a Glance

Where a vendor publishes no price, the figure is a median from Vendr's purchase data or a range reported by at least two independent 2026 reviews, and it's marked as such.

One row doesn't belong in the category. Getcleed is last because it's what we build and because the right way to use it is on an export from one of the other eleven. We'll make that case in the final section and let you judge.

Already have a list exported from one of these tools? Run a free signal check on it and see which contacts showed a buying signal this week before you sequence the whole file.

How We Compared B2B Data Providers

Four criteria, weighted toward what changes a buying decision.

• Published price, or the closest honest substitute. Six of twelve publish a price. For the rest we used Vendr medians or ranges that appear in at least two independent 2026 reviews, and we say which. We ignored any "starting from" figure that hides a platform fee.
• Coverage, with the dispute. Database sizes are marketing. ZoomInfo's About page says 500M+ contacts while other ZoomInfo pages say 321M or 420M. Apollo's pricing page says 240M while its blog says 275M. We quote the page a buyer would see and note the spread.
• Accuracy, with the tester named. There's no neutral 2026 head-to-head. There are three tests worth reading, each with a bias we describe below.
• The category boundary. Each vendor gets a "what it cannot tell you" line. It's the question other listicles skip and the one that decides whether your reply rate moves.

We didn't weight UI, integration counts or G2 stars. They matter, and they're the easiest things to check yourself in a 30-minute trial.

The 12 B2B Data Providers, Reviewed

1. ZoomInfo: the enterprise standard, now trading as GTM

ZoomInfo changed its Nasdaq ticker from ZI to GTM on 13 May 2026, bought the agent-orchestration startup DoubleO.ai in September, and folded Copilot into what it now calls GTM Workspace. The product is bigger than a database. The database is still why people buy it.

Price. No list price. Vendr's dataset of 1,574 purchases puts the median at $33,500 a year, ranging from about $7,200 to $155,800, with an average 22% negotiated off the first quote. Buyer reports describe a platform fee from around $15,000 plus $1,500 to $2,500 per seat per year. Treat the seat figures as reported, not published.

Coverage. 500M+ contacts, 100M+ companies, 135M+ verified phones and 120M+ direct dials, per the About page. Direct dials are the moat. Nobody else publishes a number close.

Accuracy. "Continuously verified by 300+ human researchers", no percentage. In the Cleanlist test below, ZoomInfo matched 84% of emails and 67% of mobiles on 1,000 leads, the best of the two vendors tested.

Best for. Ten or more reps who call, who have procurement, and who can use a full contract year.

What it cannot tell you. Which of those 500 million people is in a buying cycle. ZoomInfo sells intent separately, priced by topic, and it's account-level third-party intent, not what a named person did this week. Under five seats, read the ZoomInfo pricing picture in our sales intelligence pillar before booking the demo.

Dana runs RevOps for a 12-rep logistics SaaS team. She renewed ZoomInfo in January 2026 at $41,000, down from a $52,000 quote. In September she sampled 300 contacts exported in Q1 and checked titles against LinkedIn. 114 of them, 38%, had changed role or company. The data was accurate the day it was pulled. The team had kept sequencing the file as if it still were.

2. Apollo.io: the all-in-one for small teams

Apollo got a new CEO in February 2026, bought the signals startup Pocus in March, and shipped ApolloNEXT in September with an "Intelligence Layer". It remains the default first database for teams under 20 because the sequencer and dialer live in the same tab.

Price. Apollo's pricing page renders client-side, so these come from a July 2026 verification: Basic $49 per user per month annual ($59 monthly), Professional $79 ($99), Organization $119 ($149) with a three-seat minimum. Credits are 30,000, 48,000 and 72,000 a year, granted monthly with no rollover, and a phone reveal costs about 8. Typical contracts land near $16,000 a year.

Coverage. 240M contacts and 30M companies on the pricing page; other Apollo pages say 270M to 275M. Apollo also powers the ICP search inside Getcleed, so we know its coverage well.

Accuracy. No published percentage. Cleanlist found 78% email match and 41% mobile match against ZoomInfo's 84% and 67%. The ColdIQ-relayed test found a 4.2% live-send bounce rate, the highest of three vendors, alongside the best reply rate, which says more about Apollo's users than its data.

Best for. Two to ten people who want to find, sequence and call from one tool.

What it cannot tell you. Why a contact matched beyond the filters you set. The new Intelligence Layer pulls Apollo toward signals, but its scoring is firmographic first. We did the seat-by-seat cost comparison at five and ten users, and ranked the best Apollo alternatives by price for teams who've outgrown the credit model.

Tomás and Léa are two founders selling HR analytics. On Apollo Basic at $49 each, they built a 1,400-contact list in week one and burned the credit grant by day nine. They spent three weeks sending to the same 1,400 people. Reply rate: 2.1%. The constraint was never the data. Nothing in the tool told them which 70 of the 1,400 to call first.

3. Cognism: compliant mobiles for Europe

Cognism publishes no price but publishes something rarer: a compliance page you can hold it to. It's the only vendor here with a notified database, meaning it tells business contacts they've been added, and it screens against do-not-call lists in 12 jurisdictions.

Price. Standard and Pro, each with five seats included. Vendr's median is $32,750 a year. Buyer reports describe a $15,000 to $25,000 platform fee plus $1,500 to $2,500 per seat; some guides quote Standard from $12,750 a year with 10,000 to 12,000 credits per user. None of the seat-level figures is vendor-confirmed.

Coverage. 400M+ contacts per third parties; Cognism's own pages don't state a total. The number that matters is Diamond Data, its phone-verified mobile set, which passed 10 million at the end of 2023. Director-level and above records refresh every 30 days.

Accuracy. Cognism's compliance page states 87% accuracy on phone-verified mobiles, validated by human callers. In the June 2026 ColdIQ-relayed test, Cognism had the lowest live-send bounce rate at 1.8%.

Best for. UK and EU teams of five or more whose reps call mobiles and whose legal team asks questions.

What it cannot tell you. Who's in-market beyond Bombora topic intent, available on Pro for up to 12 topics at the account level. MCP and API access moved into Standard this year, which makes exports easier to pipe into a scoring layer.

4. Lusha: the extension with a real free tier

Lusha's pricing page was updated on 22 September 2026, so these numbers are current.

Price. Free with 40 credits a month. Starter $49.90 a month for 400 credits or $449.10 a year for 4,800. Professional $69.90 for 600 or $629.10 a year. Premium $399.90 for 3,400 or $3,599.10 a year. An email costs one credit and a phone costs five, which is the line most buyers miss. SpendHound reports Lusha's SMB pricing is up 23.5% year over year.

Coverage. 515M+ contacts, 29M+ companies and 165M+ verified emails as of 30 September 2026.

Accuracy. 98% email and 86% phone, from Lusha's own July 2026 test of 322 US contacts. Vendor-run, so read it as a ceiling.

Best for. Individual reps and teams under five who prospect inside LinkedIn one contact at a time.

What it cannot tell you. Anything the contact did after the record was built. Lusha bought the conversation-intelligence startup Novacy in 2025 and joined the Clay marketplace in March 2026, which tells you where enrichment is heading.

5. Clay: not a database, an orchestration layer

Clay closed a $115M Series D at a $7.1B valuation on 9 September 2026, eight days after shipping its own Sequencer. It's on this list because buyers search for it as a data provider. It isn't one. It's a spreadsheet that calls 150+ providers in a waterfall and charges per call.

Price. Per account, not per seat. Free with 500 actions and 100 data credits a month. Launch from $167 a month monthly or $54 on annual billing, for 15,000 actions and 3,000 data credits. Growth from $446 monthly or $185 annual. The dual Actions-plus-Data-Credits meter arrived in March 2026, and the monthly-versus-annual gap on Clay's pricing page is wider than the stated 10% discount, so check it in your own browser before budgeting.

Coverage. Whatever its providers have. Audiences, launched June 2026, adds unlimited people and company search.

Accuracy. No claim. The waterfall is the strategy: if provider one misses, try provider two. Every hit costs a credit.

Best for. RevOps teams with someone who enjoys building tables and a budget for the data underneath.

What it cannot tell you. Who to put in the table. Clay enriches rows you supply. If nobody wants to be the builder, the Clay alternatives that don't need a GTM engineer are the shorter path.

6. UpLead: the bounce guarantee

UpLead verifies emails at export and refunds the credit if a verified email bounces.

Price. Essentials $99 a month for 170 credits, or $74 annual. Plus $199 for 400 credits or $149 annual, adding technographics and suppression lists. Professional is custom. Extra credits cost $0.60.

Coverage. 200M+ leads on the homepage; third parties cite 155M to 180M contacts.

Accuracy. A 95% guarantee backed by the refund. The most honest accuracy claim in the category, because it's priced.

Best for. US teams of two to ten that care more about bounce rate than mobile coverage.

What it cannot tell you. Timing of any kind; UpLead resells Bombora intent as an add-on. Note that the California Privacy Protection Agency fined UpLead $34,400 in November 2024 for 172 days as an unregistered data broker. It has since registered. Its pages carry no GDPR statement.

7. Seamless.AI: reach over precision

Seamless calls itself a "real-time search engine" rather than a database. That's a feature claim and a warning. Records are assembled when you search, which inflates the count and the bounce rate together.

Price. The Basic tier was removed in a 2026 restructure. Pro is quote-only with a five-seat minimum and a 12-month term; reviewers report $4,740 to $9,000 a year for five seats, roughly $79 to $150 a seat per month. Enterprise runs $20,000 to $100,000 and is the only tier with an API. Credits arrive daily at 1,000 and expire each night. Reviewers also flag a 60-day cancellation notice.

Coverage. 1.8B+ "verified" emails and 414M+ phones, the largest number here by a factor of three.

Accuracy. "Real-time verified" plus 100% credit-back on invalid emails. Independent reviews report 20% to 30% bounce rates. The old "98% accuracy" line is gone from the homepage.

Best for. High-volume dialing teams that would rather have a wrong number than no number.

What it cannot tell you. Whether the record existed before you searched for it. Pair it with a verifier, and with a reason to call.

8. Kaspr: LinkedIn reveal for European SDRs

Kaspr is owned by Cognism and is the extension-shaped way into Cognism's European data.

Price. Free with 15 emails and 5 phones a month. Starter $49 per user per month annual ($65 monthly) with unlimited B2B emails and 100 phone credits. Business $79 ($99) with 200 phone and 200 direct-email credits. Credits pool across the team and roll over on paid plans.

Coverage. 500M+ emails and phones and 200M+ profiles per a 2024 Kaspr post, deepest in France, the UK, Germany, Benelux and the Nordics.

Accuracy. No percentage published.

Best for. SDRs in Europe who live in LinkedIn and need a mobile before the first call.

What it cannot tell you. Who's worth revealing. Kaspr shows a number for whoever you click. Know too that the French regulator CNIL fined Kaspr EUR 240,000 on 5 December 2024 for collecting details from LinkedIn profiles whose owners had restricted them, with a compliance deadline of 18 June 2025. Ask what changed before buying for an EU team.

9. RocketReach: pay per lookup

RocketReach is the researcher's database, used as much by recruiters and journalists as by sales, and priced by the lookup.

Price. The pricing page doesn't render without JavaScript, and two independent 2026 checks disagree. One puts Essentials at $27 a month annual ($49 monthly), Pro at $69 ($99) and Ultimate at $142 ($209); the other says $39, $79 and $169 monthly. Both agree annual plans have unlimited lookups with export caps of 1,200, 3,600 and 20,000 a year. Essentials is email-only; Pro adds phones; Ultimate adds API and intent. Verify in your own browser before quoting it internally.

Coverage. 700M+ profiles and 35M companies, US-heavy.

Accuracy. RocketReach claims 90% to 98%; its Chrome listing says "at least 85%"; reviewers report 70% to 90% hit rates. Failed lookups are refunded.

Best for. Individuals who need a few hundred verified contacts a month and want to pay for exactly that.

What it cannot tell you. Company-level triggers. Hiring, funding and leadership change are outside its frame.

10. Lead411: verified emails on a flat plan

Lead411 is the quiet US mid-market option with the most specific verification story in the group.

Price. Spark $49 a month for 1,000 exports, or $490 a year for 12,000. Ignite $150 a month or $1,500 a year. Blaze is custom with unlimited exports. A seven-day trial includes 50 exports.

Coverage. The homepage says "millions of verified emails, direct dials and company profiles" and 30,000+ tracked technologies. Third parties cite 450M+ contacts.

Accuracy. 96%+ email deliverability with triple verification, re-verified every three to six months. That cadence is the number to care about, because it's the only one in the category that addresses decay directly.

Best for. US teams of three to fifteen that want a predictable export count at a flat price.

What it cannot tell you. Person-level activity. Lead411's growth triggers (funding, hiring, new location) are company-level. Its pages mention CCPA but not GDPR.

11. Leadfeeder (formerly Dealfront): visitor identification plus EU data

Dealfront rebranded to Leadfeeder on 24 March 2026, and dealfront.com now redirects. The old Echobot prospecting database survives as a product called Target, but the self-serve product is website visitor identification. Most 2025 listicles still have this wrong.

Price. Per account with unlimited users. Lite is free for the last 100 identified companies. Discover from EUR 79 a month annual. Activate from EUR 369 to EUR 649 a month annual with 200 to 1,500 contact credits. Scale from EUR 599 to EUR 2,089, annual only. Target is quote-only; 2026 reviews put it at EUR 500 to EUR 2,000 a month. Treat that as an estimate.

Coverage. Roughly 60M companies and 400M contacts per third parties, strongest in DACH and the Nordics, with EU hosting.

Accuracy. None stated.

Best for. German, Austrian, Swiss and Nordic teams that want to know which companies visited the site and then pull contacts for them.

What it cannot tell you. Who at the visiting company is the buyer. Visitor identification resolves an IP to a company, not to the person who clicked. It's one of the better company-level signals here, and we place it among the intent data providers in a separate comparison.

12. Getcleed: the signal layer on top of any of the above

Getcleed is what we build, so this card is shorter and you should weigh it accordingly. It isn't a B2B data provider. It doesn't sell you a list. It takes the list you already have, from any of the eleven vendors above or a CSV, and tells you who on it is showing buying intent right now.

Price. $129 a month, or $99 a month annual, for 1,000 leads analyzed. Flat, no per-seat multiplier, seven-day free trial. Current numbers are on the pricing page.

Coverage. For net-new discovery it searches Apollo's 275M+ contacts against your ICP, so the ceiling is Apollo's. For scoring it reads the public LinkedIn activity of the people on your list, plus company-page activity for hiring, funding and launches.

Accuracy. Not a contact-accuracy product. The output is a 0-100 relevance score per person from 11+ signal types and custom signals you define, re-scored daily. The claim to test in a trial: does the top 10% of your list by score reply more than the rest?

Best for. Any team on this page that has a data provider and a reply rate under 5%.

What it cannot tell you. Mobile numbers. It reads behavior, not contact fields. You still need one of the vendors above.

Ready to test the difference on your own list? Start a free trial, import an export from your current provider, and sort it by relevance score. No credit card.

B2B Contact Database Accuracy: What Independent Tests Show

Vendor accuracy claims run from 86% to 98% and none is comparable, because each vendor picks its own sample and its own definition of "accurate". Three 2026 tests were run by someone other than the vendor measured. Each has a bias, stated here.

Three things hold across all three. ZoomInfo and Cognism lead on phones. Apollo trails on raw match and still produces competitive reply rates. And every vendor loses 13% to 22% of a fresh export to a verifier before a single email goes out.

The reason is decay, not sloppiness. The most-cited figure, attributed to MarketingSherpa and built into HubSpot's decay calculator, is 2.1% of B2B contact data going stale each month, about 22.5% a year compounded. Landbase's compilation of 2024-2026 sources puts annual job-title change at 65.8% and email change at 37.3%. A list that was 95% accurate on export is a list with a date on it. We did the revenue math in how CRM data decay kills your pipeline.

For the buying decision: the accuracy gap between the top vendors is smaller than the gap between a fresh export and a six-month-old one. Lead411's re-verification cadence and Cognism's 30-day refresh on senior titles are the two features here that address it. Daily rescoring of people you've already exported is the third, and that's a signal-layer job.

How to Choose a B2B Data Provider by Team Size

The ranking above is by what each vendor does. Here are the same B2B data providers sorted by who's buying them.

One to four people

Start free. Apollo's free tier gives unlimited email addresses and 900 credits a year. Lusha gives 40 credits a month and the best extension. Kaspr gives 15 emails a month if you sell into Europe. Run all three for a week and keep the one whose data matched your market.

Then pay for one. Apollo Basic at $49 if you want the sequencer. Lusha Starter at $49.90 if you want the extension. UpLead Essentials at $74 annual if bounce rate is your scar tissue. Don't buy a platform-fee vendor at this size.

Five to fifteen people

This is where seat math bites and the quote-only vendors become possible. Apollo Professional at $79 times eight seats is $7,584 a year. Cognism Standard with five seats included starts, per third-party reports, near $12,750. The difference buys phone-verified mobiles and compliance paperwork. If your reps call, that's worth it. If they email, it isn't.

The pattern we see most at this size is a database at $8,000 to $15,000 a year plus a signal layer at $1,188 a year, with the signal layer deciding which 15% of the export gets a call first.

Priya leads a six-SDR team at a UK payroll software company. In March 2026 the team moved from Lusha to Cognism for the DNC screening after legal flagged a complaint. Connect rates rose. Meetings didn't. In June she started exporting the Cognism list through a signal check before each sprint and routing the 80 highest-scored contacts to the dialers first. Meetings per rep per month went from 4.3 to 7.1 by September, on the same data and the same reps.

Sixteen or more

You'll buy ZoomInfo or Cognism, and the real question is how hard you negotiate. Vendr's 22% average saving and the $33,500 median are your anchors. Ask for a multi-year price lock, a 12-month exit clause, and a credit-usage report before renewal. At this size, intent data is a separate purchase with its own vendor list, covered in the best B2B intent data providers compared. For the database-versus-signal-platform decision itself, the sales intelligence platforms pillar lays out the architecture split and what each costs at five seats.

What B2B Data Providers Cannot Tell You

Every B2B data provider on this page sells an answer to two questions. Who exists in my market? How do I reach them? ZoomInfo answers with 500 million records and 300 human researchers. Lusha answers with a browser extension. Clay answers with a waterfall across 150 providers. They're all answering the same two questions.

The third question is the one that moves reply rate. Who, out of everyone who exists, is buying this quarter?

The research says about 5% of any market is in a buying cycle at a given time, closer to 7% or 8% in software. We did the arithmetic in the 95-5 rule in B2B outbound: on a 2,000-contact export, roughly 100 to 150 people have a reason to reply and 1,850 don't, however accurate their email is. A data provider gives you all 2,000 with equal confidence. That's its job.

Finding the 100 is a different job, and the evidence is public. A VP who started a new role six weeks ago. A company that posted four SDR openings. A director who commented on a competitor's launch. These are the LinkedIn buying signals that predict a purchase, and no contact database stores them because they aren't contact fields. They're events, and they expire.

This is where Getcleed sits. You keep your data provider. You export the list, or sync it from HubSpot, Pipedrive or Attio. Getcleed reads each person's recent LinkedIn activity, scores them 0 to 100 against your ICP, writes a hook that references what they did, and rescores nightly so yesterday's cold contact surfaces when they post about switching tools. You still send the message. You just send it to the right 100 first.

If you want the step before that, how to build a prospecting list that converts covers list construction from the data side, and Sales Navigator alternatives covers the LinkedIn-native route for teams skipping the database altogether.

B2B Data Providers FAQ

What is the best B2B data provider in 2026?

It depends on team size and geography. ZoomInfo leads on direct-dial coverage for enterprise teams at a median of $33,500 a year. Cognism leads on compliant mobile data for UK and EU teams. Apollo is the most common starting point under 20 seats at $49 to $119 a seat. Lusha and Kaspr have the best free tiers. No single vendor is best for everyone, which is why this comparison sorts them by job.

How much do B2B data providers cost?

Published seat prices in 2026 run from free to about $150 a user per month: Apollo $49 to $119, Lusha $49.90 to $399.90, UpLead $74 to $149, Kaspr $49 to $79, Lead411 $49 to $150. Quote-only vendors are a different scale: ZoomInfo's median contract is $33,500 a year and Cognism's is $32,750, per Vendr. Clay and Leadfeeder price per account rather than per seat.

How accurate is B2B contact data?

Vendors claim 86% to 98%. Independent 2026 tests found 78% to 84% email match on fresh exports and 1% to 4% live-send bounce after a verifier pass, with ZoomInfo and Cognism ahead on phones. The bigger factor is decay: about 2.1% of contact data goes stale each month, and roughly two in three job titles change within a year.

What is the difference between a B2B data provider and intent data?

A B2B data provider tells you who exists and how to reach them. Intent data tries to tell you which accounts are researching a purchase, usually from third-party web activity. Buying signals are the person-level version: a job change, a hiring post, a comment on a competitor's launch. Most teams need a data provider plus one of the other two.

Is ZoomInfo worth it for a small team?

Usually not under 10 seats. The platform fee and annual contract put the floor near $15,000 to $20,000 before negotiation, three to four times what Apollo Professional costs for the same headcount. ZoomInfo's edge is direct-dial depth, which matters most for teams that call at volume.

The Bottom Line

1. The best B2B data providers in 2026 split by model: contract databases (ZoomInfo, Cognism) at a median near $33,000 a year, seat-and-credit databases (Apollo, Lusha, UpLead, Kaspr, RocketReach, Lead411, Seamless) from free to about $150 a user per month, and per-account aggregators or visitor tools (Clay, Leadfeeder).
2. Independent tests put fresh-export email accuracy at 78% to 84% and send bounces at 1% to 4%, with ZoomInfo and Cognism ahead on mobiles. The gap between vendors is smaller than the gap between a fresh list and a six-month-old one.
3. Check the 2026 changes before trusting an older listicle: Dealfront is Leadfeeder, ZoomInfo trades as GTM, Apollo owns Pocus, Seamless dropped its cheapest tier, and Kaspr and UpLead each carry a regulator's fine.
4. Pick by team size. Free tiers solo, one seat-priced vendor under five people, a contract vendor only when your reps call at volume.
5. Every B2B contact database answers who exists and how to reach them. None answers who's buying now. That answer is in the behavior of the people already on your list.

Export your current list from whichever provider you chose. Then run a free signal check on it and see which 5% to 8% showed a buying signal this week. That's the part worth calling today, and no database on this page could have told you which part it was.