Where to Buy B2B Data: 10 Providers Ranked for 2026
Office365 inbox placement dropped from 77.43% to 50.70% between Q1 2024 and Q1 2025. Half your cold emails now land in spam - and bad contact data makes it worse. Meanwhile, 22.5% of your B2B database decays every year: people change jobs, companies get acquired, phone numbers go dead.
The provider you buy B2B data from isn't a line item. It's the foundation your entire outbound motion sits on.
We've evaluated dozens of providers over the past two years. These 10 are the ones worth your time.
Our Top Picks at a Glance
| Use Case | Pick | Why |
|---|---|---|
| Email accuracy and self-serve | Prospeo | 98% email accuracy, 7-day refresh, starts free |
| All-in-one on a budget | Apollo | Sequencing + data, free tier |
| EU compliance first | Cognism | Diamond Data, DNC screening |
What B2B Data Actually Includes
Not all "B2B data" is the same product. Here's what you're purchasing when you buy business data:
Contact data - verified work emails, direct dials, mobile numbers. If it bounces, nothing else matters. This layer determines whether your outreach reaches anyone at all.
Firmographic data - company size, revenue, industry, HQ location. The building blocks of any Ideal Customer Profile filter. Technographic data - what software a company runs, which is critical for selling into specific tech stacks. Intent data - signals that a company is actively researching a topic, typically tracking thousands of topics via providers like Bombora. Chronographic data - job changes, funding rounds, headcount growth. These are buying triggers.
Every field decays at a different rate. Work emails decay at 20-30% per year. Job titles go stale at 15-25%. Direct phone numbers decay at 15-20%. A provider that refreshes monthly is already behind - at roughly 2% monthly decay, you're working with stale records before the next refresh hits.
How to Evaluate a Provider
Test against your ICP. Export 50 contacts matching your actual target persona. Send a test sequence. In our testing, this 50-contact method catches accuracy problems that demos hide. If the bounce rate tops 5%, the data isn't good enough.
Check the refresh cycle. Ask how often records get re-verified. Weekly is best-in-class. Monthly is acceptable. "Continuously updated" with no specifics usually means quarterly at best.
Calculate cost per usable contact. A $0.50 credit that bounces 20% of the time costs you $0.63 per usable contact - plus the domain reputation damage. Here's the thing: cheap credits with bad accuracy are the most expensive data you can buy.
Verify compliance and integration depth. GDPR, CCPA, SOC 2 - ask for documentation. If the vendor can't produce a DPA within 24 hours, that's a red flag. And if the tool can't push directly to your CRM and sequencer, manual CSV exports will eat 30-60 minutes per list build.
10 Best B2B Data Providers
1. Prospeo
Prospeo's database covers 300M+ professional profiles with 143M+ verified emails and 125M+ verified mobile numbers. The headline number: 98% email accuracy, backed by a proprietary 5-step verification process that includes catch-all handling, spam-trap removal, and honeypot filtering. Records refresh every 7 days - the industry average is roughly 6 weeks.
You get 30+ search filters covering buyer intent across 15,000 Bombora topics, technographics, job changes, headcount growth, and funding. Enrichment returns 50+ data points per contact, and the API match rate sits at 92%.
Real results: Snyk's 50-person AE team went from a 35-40% bounce rate to under 5%, generating 200+ new opportunities per month. That's not a marginal improvement - it's a different pipeline entirely. Stack Optimize built from $0 to $1M ARR using Prospeo data, maintaining 94%+ client deliverability with bounce rates under 3% and zero domain flags.
Pricing runs ~$0.01 per verified email. The free tier gives you 75 emails and 100 Chrome extension credits per month. No contracts, cancel anytime. Native integrations with Salesforce, HubSpot, Smartlead, Instantly, Lemlist, Clay, and Zapier.
Pairs best with Instantly or Lemlist for sequencing - Prospeo handles the data, your outreach tool handles the sending.
2. Apollo
Apollo's database covers 275M+ contacts and earns a 4.8/5 on G2 across 7,500+ reviews. The built-in sequencer is genuinely useful: find a prospect, add them to a multi-step email sequence, and track engagement without leaving the tool. For teams that want prospecting and outreach in one place, it's hard to beat on value.
Pricing starts free, with paid plans at $49/user/month (Basic) and $79/user/month (Professional) on annual billing. Worth noting: Reddit threads consistently mention that Apollo's free plan dropped from 10,000 credits/month to 720. If you're building workflows around free-tier limits, expect those limits to shift.
Tested accuracy lands at 87% in the US, 74% in the UK/EU, 70% in India, and 68% in APAC. Phone numbers cost 5 credits each, so heavy dialing teams burn through allotments fast.
Where Apollo beats ZoomInfo: price, ease of use, and time-to-value. A rep can be prospecting within an hour. Where ZoomInfo still wins: database depth for enterprise accounts and intent data granularity.
Skip this if you're prospecting heavily outside the US or need mobile numbers at scale.
3. ZoomInfo
Let's talk money first. Professional starts at $15,000/year, but most teams pay $30,000-$75,000+ annually once you add seats and modules. Professional includes 5,000 annual credits; additional blocks run ~$3,000 per 5,000. Common add-ons inflate the bill further: NeverBounce email verification adds ~$3,000, Global Data adds ~$9,995.
For 1,000+ employee orgs, Vendr benchmarks land at $50,200-$161,900/year. Auto-renewal notice windows are often 60-90 days before your contract ends, so you need renewal reminders well in advance. The #1 complaint on Reddit? Price - specifically, paying for modules you don't use.
So why does anyone pay it? Because the database is massive, the intent signals are granular, and the platform covers everything from prospecting to ABM to conversation intelligence. G2: 4.4/5 across 8,600+ reviews. Tested accuracy: 89% in the US, 78% in the UK/EU, 71% in India, and 73% in APAC.
Look - ZoomInfo is still the most complete all-in-one platform. But most teams don't need all-in-one. They need accurate emails and phones. If your average deal size is under $25k or your team is under 50 people, the ROI math rarely works.
4. Cognism
If you're selling into the UK or EU, Cognism is the compliance-first pick. Diamond Data is human-verified and DNC-screened, which matters enormously where calling numbers on do-not-call lists carries real penalties. G2: 4.6/5 (727 reviews).
Pricing: Grow runs ~$22,500/year for 5 users, Elevate ~$37,500/year. "Unlimited" access is governed by fair-use limits - expect around 2,000 records per user per month. Hidden costs include onboarding ($2,000-$5,000) and potential API/enrichment overages. Cognism's own site doesn't publish exact numbers, so always negotiate.
Best-in-class for EMEA. Overpay territory if your ICP is primarily North American.
5. Lusha
| Pros | Cons |
|---|---|
| Free tier (70 credits/mo) | 10 credits per phone reveal |
| Quick individual lookups | Not built for bulk exports |
| Simple Chrome extension | Credit math adds up fast |
Lusha is a supplemental tool, not a primary database. We've seen teams pair it with a bulk provider to fill gaps on specific contacts. Pro costs $29.90/user/month (annual) with 250 credits; Premium runs $52.45/user/month with 800 credits. One credit reveals an email, but 10 credits reveal a phone number. That free plan gets you 7 phone reveals.
6. UpLead
UpLead refunds credits for invalid data - a policy almost no competitor matches. G2: 4.7/5 (780 reviews). Tested accuracy: 93% in the US, 85% in the UK/EU, 78% in India, and 80% in APAC.
Pricing starts around $99/month, with higher tiers around $199/month. The platform is straightforward: search, filter, export. No sequencing, no workflow automation. For teams that want a clean database without platform bloat, UpLead delivers. It's a solid choice when you don't need another all-in-one tool cluttering your stack.
7. Kaspr
Best for SMB teams prospecting European contacts on a budget. Free tier available, paid plans start at ~$49/user/month (Starter) and ~$79/user/month (Business). Lightweight and affordable without enterprise complexity. If your team is under 10 people and focused on EMEA, Kaspr gets the job done without the overhead.
8. Dealfront
Formerly Leadfeeder + Echobot. Best for teams that need both website visitor identification and European contact data. Leadfeeder starts from EUR99/month; Target and Connect modules carry custom pricing on annual contracts, typically EUR300-EUR800/month depending on volume. The visitor identification piece is genuinely useful for ABM plays.
9. Clearbit / HubSpot Breeze Intelligence
Best for HubSpot-native teams. Starter runs $30/month (100 credits), Growth $150/month (1,000 credits), Scale $700/month (10,000 credits). The enrichment feeds directly into your CRM records. Outside the HubSpot ecosystem, there are better standalone options - you're paying a premium for the native integration.
10. Seamless.AI
Best for teams that prioritize data freshness over predictable pricing. Real-time search model that finds contact data on demand rather than pulling from a static database. Free tier is limited; Pro runs ~$147/month, Enterprise is custom. The real-time approach means fewer stale records, but costs can be unpredictable at scale.
Honorable mentions: Saleshandy Lead Finder, Lead411, and Dun & Bradstreet are worth evaluating depending on your specific market.
You just read that 22.5% of B2B databases decay every year. Prospeo refreshes every 7 days - not 6 weeks like the industry average. 98% email accuracy, 125M+ verified mobiles, and pricing at $0.01 per email. No contracts, no sales calls.
Stop paying for data that's already stale when you buy it.
Accuracy by Region
Tested accuracy varies dramatically by geography. This table draws from independent region-by-region testing where available:
| Provider | US | UK/EU | India | APAC |
|---|---|---|---|---|
| UpLead | 93% | 85% | 78% | 80% |
| ZoomInfo | 89% | 78% | 71% | 73% |
| Cognism | 88% | 93% | 72% | 75% |
| Apollo | 87% | 74% | 70% | 68% |
| Lusha | 84% | 80% | 65% | 63% |
ZoomInfo and Apollo are strong in the US but drop off internationally. Cognism leads in the UK/EU specifically. Prospeo holds 98% across all regions, supported by its 7-day refresh cycle and proprietary verification infrastructure.
Best for Each Category
| Category | Winner |
|---|---|
| Email accuracy | Prospeo (98% across regions) |
| Best free tier | Apollo (sequencing included) |
| EU/GDPR compliance | Cognism (Diamond Data + DNC screening) |
| Data guarantee | UpLead (credit refund for invalid data) |
| Enterprise all-in-one | ZoomInfo (if you'll use the full platform) |
| Lowest cost per lead | Prospeo (~$0.01/email) |
| Quick individual lookups | Lusha (Chrome extension) |
Snyk cut their bounce rate from 35-40% to under 5% and generated 200+ new opportunities per month. Stack Optimize built to $1M ARR with zero domain flags. The difference wasn't strategy - it was the data they bought. Prospeo's 5-step verification and 7-day refresh cycle mean every credit you spend connects you to a real person.
Buy B2B data that actually converts - start with 75 free emails.
Pricing Comparison
| Provider | Starting Price | Free Tier | Credit Model | Contract |
|---|---|---|---|---|
| Prospeo | ~$0.01/email | 75 emails + 100 ext. credits/mo | Pay per contact | No |
| Apollo | $49/user/mo | 720 credits/mo | Credits (export + mobile) | No |
| ZoomInfo | ~$15,000/yr | No | Annual credits | Yes (1-3 yr) |
| Cognism | ~$22,500/yr | No | Fair-use limits | Yes (annual) |
| Lusha | $29.90/user/mo | 70 credits/mo | Credits (1 email, 10 phone) | No |
| UpLead | ~$99/mo | No | Credits | No |
| Kaspr | ~$49/user/mo | Yes | Credits | No |
| Dealfront | EUR99/mo | No | Module-based | Yes (annual) |
| Breeze Intel | $30/mo | No | Credits (100-10K) | No |
| Seamless.AI | ~$147/mo | Limited | Search-based | Varies |
The cost-per-lead gap is stark. Self-serve platforms with transparent pricing let you scale without procurement cycles, while enterprise suites bundle annual contracts, modules, and credit blocks that inflate total cost of ownership.
How to Buy B2B Data Legally
California's B2B exemption expired January 1, 2023. Business contact information is now personal data under CCPA. Nineteen states are rolling out comprehensive privacy laws through 2026. Whether you're purchasing business data for outbound sales or inbound enrichment, the same rules apply.
CAN-SPAM penalties reach $43,280 per violation. Honor opt-outs within 10 business days and include a physical address in every email. TCPA penalties run $500-$1,500 per violation for unsolicited calls or texts - scrub against do-not-call lists monthly. GDPR fines can reach EUR20M or 4% of global revenue. Ask every data vendor for compliance documentation before you sign. If a provider can't produce a Data Processing Agreement on request, walk away.
Negotiation Tips
Use Vendr benchmarks. Cognism Grow discounts range 28-43% off list; Elevate discounts hit 36-52%. ZoomInfo contracts are similarly negotiable - never pay list price.
Mark your auto-renewal window. ZoomInfo notice windows are often 60-90 days. Put a calendar reminder 120 days out. We've seen teams get locked into renewals simply because they missed the window by a week.
Avoid multi-year lock-ins. The data market changes too fast to commit beyond one year. One-year max, with a 90-day opt-out clause if possible.
Get overage pricing in writing. "Unlimited" plans almost always have fair-use caps. Get the actual numbers before you sign - not after you've blown past them.
FAQ
Is it legal to buy B2B data?
Yes, provided the vendor collects data compliantly and you use it within GDPR, CCPA, and CAN-SPAM boundaries. Verify compliance documentation, honor opt-outs promptly, and never purchase scraped lists without consent trails. CAN-SPAM penalties alone reach $43,280 per violation.
How much does B2B data cost?
Prices range from free - Apollo and Lusha both offer free tiers - to $75,000+ per year for enterprise ZoomInfo contracts. Self-serve platforms start at ~$0.01 per verified email with no contracts or minimum commitments.
Which B2B data provider is most accurate?
Accuracy varies significantly by region. Prospeo delivers 98% email accuracy across all tested regions. Other top providers range from 63% to 93% depending on geography, with US accuracy consistently higher than APAC or India.
How fast does B2B data go stale?
About 22.5% of B2B data decays annually - roughly 2% per month. Work emails decay at 20-30% per year, job titles at 15-25%, and direct phone numbers at 15-20%. Providers with weekly refresh cycles catch changes before they damage your campaigns.
How do I test a provider before committing?
Export 50 contacts matching your ICP from 2-3 providers, send a test campaign, and measure the bounce rate. If it's above 5%, the data isn't good enough - move on. Run parallel tests with the same ICP criteria and let deliverability decide.