B2B contact databases
We put 12 B2B contact databases through the same test. ZoomInfo came out on top with 5 out of 5. Here are all the results, what each tool costs and how we test them.
B2B contact databases we tested
Best score first. Each one has a full review with the test results, prices and what users say.
ZoomInfo
5/5Read our review →
Cognism
3/5Read our review →
D7 Lead Finder
3/5Read our review →
Coresignal
2.5/5Read our review →
Lead411
2.5/5Read our review →
RocketReach
2.5/5Read our review →
Seamless.AI
2.5/5Read our review →
UpLead
2.5/5Read our review →
Vibe Prospecting
2.5/5Read our review →
Coldlytics
2/5Read our review →
Explee
2/5Read our review →
KnowFirst
2/5Read our review →Test results compared
Every tool got the same test, between October 24, 2026 to October 30, 2026.
| Tool | Score | Match rate: contacts found out of 200 | Email accuracy (verified by sending or verification) and phone accuracy | Job titles and company data correct | Cost per valid contact | Data sources, opt-out process and GDPR/CCPA compliance |
|---|---|---|---|---|---|---|
| ZoomInfo | 5/5 | Found 188/200 contacts | Valid emails 167/188; phones 167/188 | Correct title/company 186/188 | – | Source/opt-out/data-policy checks 8/8 |
| Cognism | 3/5 | Found 138/200 contacts | Valid emails 86/138; phones 90/138 | Correct title/company 90/138 | – | Source/opt-out/data-policy checks 6/8 |
| D7 Lead Finder | 3/5 | Found 141/200 contacts | Valid emails 90/141; phones 94/141 | Correct title/company 99/141 | – | Source/opt-out/data-policy checks 6/8 |
| Coresignal | 2.5/5 | Found 138/200 contacts | Valid emails 75/138; phones 74/138 | Correct title/company 78/138 | – | Source/opt-out/data-policy checks 6/8 |
| Lead411 | 2.5/5 | Found 123/200 contacts | Valid emails 80/123; phones 76/123 | Correct title/company 77/123 | – | Source/opt-out/data-policy checks 6/8 |
| RocketReach | 2.5/5 | Found 129/200 contacts | Valid emails 83/129; phones 81/129 | Correct title/company 77/129 | – | Source/opt-out/data-policy checks 4/8 |
| Seamless.AI | 2.5/5 | Found 123/200 contacts | Valid emails 80/123; phones 78/123 | Correct title/company 86/123 | – | Source/opt-out/data-policy checks 5/8 |
| UpLead | 2.5/5 | Found 122/200 contacts | Valid emails 80/122; phones 80/122 | Correct title/company 83/122 | – | Source/opt-out/data-policy checks 4/8 |
| Vibe Prospecting | 2.5/5 | Found 124/200 contacts | Valid emails 85/124; phones 82/124 | Correct title/company 77/124 | – | Source/opt-out/data-policy checks 5/8 |
| Coldlytics | 2/5 | Found 121/200 contacts | Valid emails 67/121; phones 68/121 | Correct title/company 79/121 | – | Source/opt-out/data-policy checks 4/8 |
| Explee | 2/5 | Found 111/200 contacts | Valid emails 66/111; phones 64/111 | Correct title/company 66/111 | – | Source/opt-out/data-policy checks 4/8 |
| KnowFirst | 2/5 | Found 110/200 contacts | Valid emails 62/110; phones 64/110 | Correct title/company 64/110 | – | Source/opt-out/data-policy checks 5/8 |
Want just the shortlist?
Our best-of list ranks every tool in this test, with what each one is best for.
What B2B contact databases do
B2B contact databases hold business emails, phone numbers, job titles and company data that sales, recruiting and marketing teams search and export. Credits or seats meter access, and many now add intent signals, CRM sync and outreach tools. Data goes stale, so accuracy and refresh matter more than database size.
Who uses them: Outbound sales and SDR teams, Recruiters and sourcers, Marketing teams running account-based campaigns, Agencies building lead lists for clients, Founders doing their own prospecting.
Price range: Published self-serve prices start around 39 USD a month or 74 USD a month annual (UpLead Essentials), rising to about 199 USD for mid tiers. ZoomInfo, Cognism and Seamless paid plans are quote-only; a Clay article estimates ZoomInfo entry near 15,000 USD per year. Free options: Seamless 50 credits, RocketReach 5 lookups, UpLead 7-day trial with 5 credits, Coldlytics free plan.
What to check before you buy
Data accuracy. Bounces hurt sender reputation.
Pricing transparency and model. ZoomInfo, Cognism and Seamless quote prices; UpLead and RocketReach publish them. Check credits versus seats versus exports.
Contract terms. Annual auto-renewals with long notice periods (reported for Seamless) drive many complaints; check renewal windows and refunds.
Regional and phone coverage. Cognism targets EMEA verified mobiles; ZoomInfo is US-centred; test mobile numbers in your own market.
Compliance. GDPR, CCPA, Do Not Call scrubbing and certifications such as SOC 2 and ISO 27001.
How we test B2B contact databases
The test for this category: Search the same 200 known contacts and 50 companies; accuracy, coverage, cost per valid contact.
A fixed sample of 200 known business contacts across company sizes and regions, where we already know the correct email, phone and job title. Every tool searches or enriches the same list.
Each tool is tested on a paid plan, and its review shows the plan, the price and the test dates. The overall score is the average of the five parts on the right, rounded to the nearest half star. See the full method for lead data and enrichment tools.
What we measure
- Match rate: contacts found out of 200
- Email accuracy (verified by sending or verification) and phone accuracy
- Job titles and company data correct
- Cost per valid contact
- Data sources, opt-out process and GDPR/CCPA compliance
The five parts of the score
Frequently asked questions
What is a B2B contact database?
A searchable store of business contacts and company data, accessed with credits or seats.
What is the best B2B contact database?
Depends on region and budget: ZoomInfo for enterprise, Cognism for EMEA, UpLead for published prices and a guarantee; test on known contacts.
Are B2B contact databases accurate?
UpLead guarantees 95 percent; ZoomInfo reviewers report 35 to 40 percent bounces at times.
How much do they cost?
From about 39 to 99 USD a month self-serve to quote-based annual contracts for ZoomInfo, Cognism and Seamless.
Are they legal and GDPR compliant?
Vendors claim compliance (Cognism cites ISO and SOC 2, DNC scrubbing); you still need a lawful basis to contact people.
More in sales software
Page updated November 4, 2026.
Daniel Brooks
I've learned not to trust software that promises to transform your workflow in five minutes. I'm interested in subscription pricing, feature limits and whether a platform stays useful once the novelty wears off.
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