Best of

The best B2B data providers in 2026

Picking the right B2B data provider is the single biggest leverage point in outbound — bad data wastes every other tool in your stack. The best B2B data providers in 2026 split cleanly: Apollo for SMB price-to-power, ZoomInfo for enterprise breadth, Clay for waterfall flexibility, Cognism for EMEA + GDPR, Lusha for budget direct dials.

Below: our 2026 ranking of the best B2B data providers, with use-case picks and honest notes on accuracy outside the US.

Nikita Balanov

Nikita Balanov

Founder, TechStackReviews

Last updated May 18, 202618 min readHow we test →

Some links on this page are affiliate — we may earn a commission. Rankings stay independent.

TL;DRQuick verdict

Apollo.io takes the top spot — best b2b data provider for smb. For runner-up, look at ZoomInfo (best enterprise b2b data provider). Full ranking, scores and pricing below.

#1 Apollo.io#2 ZoomInfo#3 Clay#4 Cognism#5 Lusha
Methodology

How we ranked

Each B2B data provider was tested on a 500-account ICP across US + EMEA. We measured (1) email coverage, (2) mobile / direct-dial coverage, (3) data accuracy (verified against LinkedIn), (4) intent + signal depth, and (5) total cost for a 5-seat team.

🎯

Real outcomes

Reply rates, booked meetings, deliverability — not feature counts.

💰

True cost at scale

Per-seat, per-credit, hidden onboarding fees, overage pricing.

🛠️

Hands-on testing

We run sequences, send emails, evaluate UX — not just read marketing pages.

🔄

Updated quarterly

Tool prices, AI features and integrations change fast. We re-rank every quarter.

Independent reviews. Some links are affiliate partners — clearly marked. We never accept payment for ranking.

The 5 top picks

Ranked by score, value & fit
Rank#1
Apollo.io logo

Apollo.io

All-in-one outbound engine with 275M contacts

Best B2B data provider for SMBBest for: All-in-one outbound

Verdict —Apollo.io is the best B2B data provider for SMB and mid-market — 275M contacts, generous free plan, and a sequencer included in the same bill. Data accuracy in EU/APAC is patchy, so pair with LinkedIn Sales Navigator for non-US ICPs.

Starts at
$49/user/mo
Free trial
14 days
G2
★ 4.7

✓ What we love

  • +275M contacts
  • +Generous free plan
  • +Sequencer included

✕ Watch out for

  • –EU/APAC data patchy
  • –Less premium than ZoomInfo
Try Apollo.io →Read full reviewSee pricing →
Rank#2
ZoomInfo logo

ZoomInfo

Enterprise B2B data & intelligence

Best enterprise B2B data providerBest for: Enterprise sales orgs

Verdict —ZoomInfo is the most complete enterprise B2B database. Best intent data, deepest org charts, mature integrations with every CRM. Price tag and aggressive sales cycle mean it's only justified for $1M+ ARR sales orgs.

Starts at
$15K+/yr
Free trial
No
G2
★ 4.4

✓ What we love

  • +Most complete enterprise dataset
  • +Best intent data
  • +Mature integrations

✕ Watch out for

  • –$15K+/yr minimum
  • –Annual contracts only
Find your match →Read full reviewSee pricing →
Rank#3
Clay logo

Clay

AI-powered GTM data orchestration

Best B2B data orchestrationBest for: GTM engineers & RevOps

Verdict —Clay isn't a single B2B data provider — it's a waterfall that hits 50+ providers and picks the best result. The most flexible and accurate way to enrich any list, but the steepest learning curve.

Starts at
$149/mo
Free trial
14 days
G2
★ 4.9

✓ What we love

  • +Waterfall across 50+ data sources
  • +AI research workflows
  • +Most flexible enrichment

✕ Watch out for

  • –Steep learning curve
  • –Credit-based pricing adds up
Find your match →Read full reviewSee pricing →
Rank#4
Cognism logo

Cognism

GDPR-compliant B2B prospecting

Best B2B data for EMEA + GDPRBest for: EMEA mid-market & enterprise

Verdict —Cognism is the best B2B data provider for European prospecting. Premium mobile data, GDPR-compliant by default, and the only data tool with comprehensive EMEA coverage at the same level as US-focused ZoomInfo.

Starts at
$15K+/yr
Free trial
No
G2
★ 4.6

✓ What we love

  • +Best EMEA mobile data
  • +GDPR compliant
  • +Strong intent signals

✕ Watch out for

  • –$15K+/yr
  • –Expensive minimum commitment
Find your match →Read full review
Rank#5
Lusha logo

Lusha

Direct dials & verified emails

Best budget B2B data providerBest for: EMEA & SMB sales

Verdict —Lusha is the best B2B data provider for teams that mostly need direct dials and don't want enterprise contracts. Real free tier, per-user pricing, strong mobile coverage outside the US.

Starts at
$49/user/mo
Free trial
14 days
G2
★ 4.3

✓ What we love

  • +Real free tier
  • +Strong mobile coverage outside US
  • +Per-user pricing

✕ Watch out for

  • –Smaller dataset than ZoomInfo / Apollo
  • –Limited intent data
Find your match →Read full reviewSee pricing →

Also considered

LinkedIn Sales NavigatorAmplemarket

Frequently asked questions

What is the best B2B data provider?+

For most teams, Apollo.io is the best B2B data provider on price-to-power — 275M contacts plus a sequencer in one bill. Enterprise should evaluate ZoomInfo, EMEA-focused teams should pick Cognism, and advanced GTM teams should layer Clay on top of any of them for waterfall enrichment.

How accurate is B2B data in 2026?+

Email accuracy is generally 85-95% across the major B2B data providers; mobile direct-dial accuracy is much lower (40-70%). Always run a verification step (Apollo, NeverBounce, ZeroBounce) before sending — even on premium data.

Apollo vs ZoomInfo — which has better data?+

ZoomInfo has more complete data and better intent signals, especially for enterprise accounts and EMEA. Apollo has 275M contacts at a fraction of the price and is more than enough for SMB and mid-market outbound. ZoomInfo's annual contracts make Apollo the safer starting point.

Related guides

The 7 best data enrichment tools in 2026 →The 11 best cold email software platforms in 2026 →The 10 best AI SDR tools in 2026 →The 8 best sales engagement platforms in 2026 →

Not sure which one fits?

Take our 60-second matcher and we'll recommend the right outbound stack for your team, budget and CRM.

Run the 60-second matcher →