7 Best B2B Data Providers in 2026

Choosing a B2B data provider in 2026 means wading through a market that's grown crowded in the past 5 years. Every platform claims the biggest database and the highest accuracy. The real differences show up in pricing structure, regional coverage, and — for recruitment agencies specifically — whether the platform understands hiring signals at all.

1. ZoomInfo: Best for Largest North American Database

ZoomInfo is the enterprise option with the largest database at 300M+ contacts, strong intent data, and deep integrations. It consistently gets recognition for having the most comprehensive B2B database, particularly for direct phone numbers.

Pricing starts at $15K+ per year and typically requires a multi-year commitment, with most teams realistically landing closer to $25–40K once seats and add-ons are factored in. In testing, ZoomInfo's email deliverability averaged around 85%, meaning roughly 15 out of every 100 emails still bounce, even at the top of the market.

Best for: Large agencies or enterprise sales teams with budget to match, especially those needing deep North American coverage.

2. Zileo: Best for Recruitment-Specific BD

All six platforms above share the same fundamental architecture — a single proprietary database, refreshed on a schedule, not in real time. B2B data decays at 22.5%+ per year, and no refresh cadence solves the structural problem of a contact that never made it into the database in the first place.

For recruitment, there aren't a lot of specific providers out there. Zileo uses live data instead of a static company database. The data's refreshed as the vacancies go live, with 95%+ coverage of roles advertised globally.

Layered on top is the first back-fill lead generation tool of its kind: when someone in your niche changes jobs, Zileo flags it and hands you their old, now-open position as a ready-to-pursue lead. Live contact finding, multichannel sequencing across email, and CRM/ATS sync all sit inside the same platform — no separate enrichment tool, no manual re-import.

ZoomInfo, Cognism, and Apollo can tell you a company exists and hand you a contact. None of them tell you a role just opened. That's what Zileo was purpose-built around.

Best for: Recruitment agencies and B2B sales teams that need vacancy-level timing, not just company-level data.

3. Cognism: Best for EMEA and GDPR Compliance

Choose Cognism if you sell into EMEA, need GDPR-verified mobile numbers, or prioritize compliance over raw dataset size. Its human-verified "Diamond Data" process checks against 13+ global Do-Not-Call lists, which makes it the strongest option for UK and European outbound.

The trade-off is transparency and breadth. Cognism doesn't publish pricing publicly, with plans reportedly starting around $15,000+ annually, and coverage outside core EMEA markets tends to be thinner than ZoomInfo's global reach.

Best for: UK/EU-focused agencies and sales teams where verified mobile numbers and compliance are non-negotiable.

4. Apollo.io: Best for All-in-One on a Budget

Apollo.io is built for outbound teams that want to move fast without stacking tools, combining a large contact database with built-in email and dialer functionality so reps can prospect, sequence, and engage from one platform.

The honest accuracy numbers are more mixed than the marketing suggests. User experiences with Apollo's data accuracy cluster around 65–80%, with one reviewer estimating only 30–40% of phone numbers were valid in their region.

Best for: SMB and mid-market teams (including smaller agencies) that want data plus outreach in one affordable platform.

5. Clearbit (now HubSpot Breeze Intelligence): Best for Inbound Enrichment

Clearbit provides enrichment capabilities that append email addresses and firmographic data to existing CRM records, making it a strong fit for inbound-led teams. It's particularly suited to teams that prioritize real-time lead insight and fast, flexible enrichment inside existing workflows.

The bigger shift: standalone access to Clearbit is now limited, with the platform bundled as Breeze Intelligence and requiring HubSpot adoption for full functionality.

Best for: Teams already living inside HubSpot who want enrichment to happen automatically on inbound leads.

6. 6sense: Best for Account-Based Intent Data

6sense is built for enterprise GTM teams running account-based plays at scale, layering predictive intent data and buyer journey insights to help sales and marketing align around in-market accounts.

The limitation is contact depth. 6sense doesn't offer the breadth of contact and phone data that ZoomInfo provides, and its credit-based pricing can create a scarcity mindset among sales teams who end up rationing usage.

Best for: Enterprise ABM programs prioritizing account-level signals over raw contact volume.

7. Lusha: Best for Simple, Affordable Lookups

Lusha is simpler, cheaper, and well-suited for individual reps who need quick contact lookups directly from LinkedIn, with transparent five-tier pricing that avoids the opaque enterprise sales process other vendors require. It's intentionally lightweight, built for fast individual lookups, not large-scale list building.

Best for: Individual recruiters or reps who mainly need fast, reliable contact verification rather than a full prospecting platform.

So, How Do You Make the Decision?

Look closely at this list and a pattern emerges: all of these platforms share the same fundamental architecture — a single proprietary database, refreshed on a schedule, not in real time. B2B data decays at 30%+ per year, and no amount of refreshing solves the structural problem of contacts that never made it into the database to begin with.

That's a tolerable trade-off for general B2B sales. It's a much bigger problem for recruitment, because none of these six were built to answer the question that actually drives recruitment BD: is this company hiring right now, and who should I be talking to about it?

ZoomInfo, Cognism, and Apollo can tell you a company exists and hand you a contact. None of them tell you a role just went live, or that someone in your niche just changed jobs, leaving their old seat open as a lead. That's a structurally different layer of data — and it's the layer Zileo was purpose-built around.