What is a B2B contact database?
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A B2B contact database is a structured collection of business contact records that includes work emails, phone numbers, job titles, company firmographics, and often technographics or intent data. Tools like ZoomInfo, Apollo, Cognism, and Mailsfinder maintain these databases and let sales and marketing teams search, filter, and export records for outreach.
Which B2B contact database is the cheapest in 2026?
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On a cost-per-contact basis, Mailsfinder is the cheapest option at $9.99 per month for 300,000 credits or $249 for a lifetime plan. Adapt.io at $49 per user and UpLead at $99 per month sit in the next tier. ZoomInfo and Cognism are the most expensive, often requiring annual contracts above $15,000.
Is Apollo.io better than ZoomInfo?
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Apollo offers a larger top-of-funnel database (275M contacts) at a lower entry price and bundles sequencing inside the same platform. ZoomInfo has deeper enrichment, stronger intent signals, and more accurate phone data, which matters more for enterprise sales. For most SMB and mid-market teams, Apollo wins on price-to-value. For large enterprise teams running multi-touch ABM, ZoomInfo still leads.
What is the most accurate B2B contact database?
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UpLead publishes a 95% accuracy guarantee and ZoomInfo, Cognism, and Lusha all hold high G2 scores for data quality. Accuracy varies sharply by region: Cognism leads in EMEA mobile data, ZoomInfo leads in US firmographics, and Apollo leads in global breadth. Mailsfinder verifies emails in real time during export to keep bounce rates low.
Are B2B contact databases GDPR compliant?
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Cognism and Lusha are the two databases most often cited as GDPR-aligned, with explicit notification workflows and DNC list scrubbing for European contacts. Dropcontact, while a smaller enrichment-only tool, is also fully GDPR native. ZoomInfo, Apollo, and Seamless can be used in Europe but require careful configuration of opt-out and legitimate interest workflows.
Can I use a B2B contact database for cold email?
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Yes, but the database alone is not enough. You also need email verification to protect sender reputation and a sending platform with warmup. Apollo, Seamless, and Lead411 bundle sending inside the platform. Mailsfinder focuses on the data layer and pairs with any sending tool such as Instantly, Smartlead, or Lemlist.
How do I choose between Apollo and Mailsfinder?
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Choose Apollo if you want one platform for prospecting plus sequencing and you can absorb the $59 to $149 per user monthly cost. Choose Mailsfinder if you already have a sending tool and want a low-cost, high-volume data source. Many teams use both: Apollo for the sequencing layer and Mailsfinder for high-volume credit top-ups.
What is the difference between a contact database and a lead database?
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A contact database centers on individual people: name, title, email, phone, company. A lead database often refers to qualified prospects, sometimes enriched with intent or scoring signals indicating purchase readiness. ZoomInfo, Cognism, and 6sense lean toward lead intelligence. Lusha, Mailsfinder, and RocketReach lean toward pure contact data.
