Best B2B contact databases for verified buyer data
Compare B2B contact databases by usable email and phone output, verification, country depth, API and MCP access, public pricing, and decisive limitations.
Reviewed and updated August 20, 2026 by Argorant
Which database returns the highest share of usable fields for your exact buyers at a predictable cost per finished contact?
Use Argorant for transparent high-volume verified email output, Apollo for an integrated outbound workspace, Cognism for quote-led EMEA and mobile priorities, and People Data Labs when the database must sit behind your own product or API.
Name the thing you need back, and the shortlist gets short.
Coverage, verification and price only become comparable once the output is fixed. A file, a field and an endpoint are three different purchases.
How the shortlist was judged.
Nominal records are irrelevant if the target field is missing, stale, or undeliverable.
Practical test: Run the same 100-record sample and separate deliverable, catch-all, unknown, invalid, and no-result outcomes.
A global headline does not prove strong coverage in the buyer's countries, company sizes, or titles.
Practical test: Compare live counts and usable-field rates for the same ICP in each priority country.
Seats, credits, lookups, actions, and exports measure different things.
Practical test: Price the exact steps required to produce 1,000 campaign-ready records, including verification and add-ons.
API, MCP, and CLI rights determine whether a workflow can run reliably without rep clicks.
Practical test: Confirm plan eligibility, rate limits, authentication, credit behavior, and export permissions in writing.
A strong database can still be the wrong product if the buyer needs orchestration, intent, or relationship signals.
Practical test: Map the path from ICP definition to final CRM or sequencer handoff and count manual interventions.
The shortlist.
Starter is $99 monthly or $74 per month billed annually for 4,500 contacts. The agent wallet is $0.035 per credit with no subscription.
Teams that need deep intent, engagement, or sequencing features will require another tool.
Basic is $65 monthly or $49 per seat per month billed annually. Professional is $99 monthly or $79 annually. Organization is $119 per seat per month billed annually with a three-seat minimum.
The broad platform makes credit and infrastructure economics more complex than contact-only pricing.
ZoomInfo Lite is free with 10 monthly credits. Community Edition raises that allowance to 25. Paid platform pricing is not public and is generally quote-led and annual.
Paid pricing and contract rights are not transparent before procurement.
Standard and Pro are quote-led and each includes five seats. CRM enrichment and Data-as-a-Service are separate buying motions or add-ons.
Public dollar pricing is unavailable and self-serve entry is limited.
Free includes 40 monthly credits. Starter is $49.90 monthly or $37.45 per month billed annually. Pro is $69.90 monthly or $48.95 annually.
Credit burn changes with the requested field and action.
Essentials is $99 monthly or $74 per month billed annually for 170 monthly or 2,040 annual credits. Plus is $199 monthly or $149 annually.
Included volume is modest and full API access requires Professional.
Annual Essentials is $399, equal to $33.25 per month, Pro is $899, equal to $74.92, and Ultimate is $1,699, equal to $141.58. Current monthly pricing was not reproducibly exposed.
Public API access starts at Ultimate and current monthly pricing is not reproducibly exposed.
Person Pro starts at $98 monthly or $78.40 per month on an annual commitment. Company Pro starts at $100 monthly or $80 annually. Enterprise is custom.
A successful profile match is not equivalent to a deliverable work email.
Side by side.
Published database sizes, accuracy claims and prices use different units, so every vendor statement below stays attributed. The buying test should still be your own sample and your own required fields.
| Provider | Best for | Coverage | Data type | Verification | Integrations | Agent access | Pricing shape | Decisive limitation |
|---|---|---|---|---|---|---|---|---|
| Argorant | High-volume verified work-email lists and agent-led exports. | 565.8M B2B contacts across 184 countries, with country, industry, company-size, seniority, department, and title filters. | Company and person records, verified work emails, company phones, and optional direct or mobile numbers. | Live SMTP verification runs at export. Invalid, unverifiable, and no-email outcomes are not charged as contact credits. | CSV exports, REST API, signed webhooks, CRM and sequencer handoffs. | MCP and API on paid plans; UI, API, CLI, and MCP through the no-subscription agent wallet. | Starter is $99 monthly or $74 per month billed annually for 4,500 contacts. The agent wallet is $0.035 per credit with no subscription. | Teams that need deep intent, engagement, or sequencing features will require another tool. |
| Apollo | Sales teams combining database search and outbound sequences. | Large global company and contact database combined with sequencing, enrichment, and rep workflows. | Company records, work emails, phones, intent and engagement fields, enrichment, and outbound workflow data. | Apollo says email credits are charged only when it can verify an email, while other data and workflow actions follow their own credit rules. | CRM integrations, browser extension, CSV, workflows, and public API. | Public API and MCP access use the signed-in workspace's normal permissions and credits. | Basic is $65 monthly or $49 per seat per month billed annually. Professional is $99 monthly or $79 annually. Organization is $119 per seat per month billed annually with a three-seat minimum. | The broad platform makes credit and infrastructure economics more complex than contact-only pricing. |
| ZoomInfo | Enterprises that need broad data, intent, enrichment, and GTM workflows. | Broad sales intelligence, company and contact data, intent, enrichment, workflows, and enterprise GTM applications. | Company and person records, phones, emails, intent, technographics, enrichment, and workflow signals. | Verification and data-quality terms depend on the purchased product and contract. Buyers should test the exact export they plan to use. | CRM, marketing automation, data enrichment, APIs, and GTM workflow products. | API, MCP, and agentic access depend on the purchased ZoomInfo or GTM AI offer and should be written into the quote. | ZoomInfo Lite is free with 10 monthly credits. Community Edition raises that allowance to 25. Paid platform pricing is not public and is generally quote-led and annual. | Paid pricing and contract rights are not transparent before procurement. |
| Cognism | EMEA revenue teams and mobile-led prospecting motions. | Global B2B data with a strong EMEA and mobile-number positioning. | Company and person data, work emails, mobile numbers, enrichment, and bulk delivery. | Cognism describes phone verification and quality controls, but buyers should reproduce results on their own countries and roles. | CRM integrations, browser extension, enrichment, API, and Data-as-a-Service delivery. | API access requires a Prospecting seat. No current public hosted MCP offer was confirmed. | Standard and Pro are quote-led and each includes five seats. CRM enrichment and Data-as-a-Service are separate buying motions or add-ons. | Public dollar pricing is unavailable and self-serve entry is limited. |
| Lusha | Small teams wanting browser discovery, contact reveals, API, and MCP. | Global contact and company discovery, enrichment, browser capture, and prospecting workflows. | Work emails, phone numbers, company attributes, intent and enrichment fields. | Lusha publishes action-level credit rules. Email, phone, CSV, and API operations should be costed as separate actions. | CRM integrations, browser extension, API, CSV, and prospecting workflows. | Official MCP documentation is public. Plan limits and the signed-in credit balance still apply. | Free includes 40 monthly credits. Starter is $49.90 monthly or $37.45 per month billed annually. Pro is $69.90 monthly or $48.95 annually. | Credit burn changes with the requested field and action. |
| UpLead | Self-serve buyers prioritizing real-time email verification. | Searchable global B2B contact and company data with email verification and enrichment. | Work emails, phones, company attributes, intent, technographics, and enrichment. | UpLead positions real-time email verification as part of each contact unlock. | CRM integrations, Chrome extension, CSV, and API on Professional. | Full API access is reserved for the custom annual Professional plan. No hosted MCP was confirmed. | Essentials is $99 monthly or $74 per month billed annually for 170 monthly or 2,040 annual credits. Plus is $199 monthly or $149 annually. | Included volume is modest and full API access requires Professional. |
| RocketReach | Researchers that value broad person discovery and annual lookup plans. | Broad person and company discovery with email and phone lookups. | Professional and personal emails, phone numbers, company and person profiles. | Lookup quotas govern access. Buyers should test work-email deliverability independently from profile discovery. | Browser extension, bulk lookup, CRM integrations, CSV, and API on Ultimate or custom plans. | No public hosted MCP server was confirmed. API starts with Ultimate in the public plan structure. | Annual Essentials is $399, equal to $33.25 per month, Pro is $899, equal to $74.92, and Ultimate is $1,699, equal to $141.58. Current monthly pricing was not reproducibly exposed. | Public API access starts at Ultimate and current monthly pricing is not reproducibly exposed. |
| People Data Labs | Developers embedding person data behind an API. | Global person, company, IP, job, and identity data delivered primarily through APIs and bulk products. | Person and company profiles, enrichment, search, identity resolution, and bulk datasets. | A credit is charged for a successful API profile or match. That success signal is not the same as work-email deliverability. | REST and bulk APIs, flat files, and enterprise data licenses. | API-first access is public. No hosted MCP server was confirmed. | Person Pro starts at $98 monthly or $78.40 per month on an annual commitment. Company Pro starts at $100 monthly or $80 annually. Enterprise is custom. | A successful profile match is not equivalent to a deliverable work email. |
Worked scenario: Entry-plan unit economics before quality adjustment
- Argorant Starter monthly is $99 for 4,500 deliverable contacts.
- Apollo Basic monthly is $65 for 2,500 nominal credits.
- UpLead Essentials monthly is $99 for 170 credits.
These units are not equal. The only defensible ranking comes after running the same sample and dividing total spend by contacts that contain the required, usable fields.
The largest database is not automatically the best database. Buy the source that returns the required buyer, field, and geography with the fewest paid failures and the cleanest handoff into revenue work.
Source evidenceArgorant B2B leads page showing 565.8M contact records, 184 countries, 122 industry hubs, and structured sample fields.Show captureHide capture
8 sources checked and datedShow sources
Frequently asked
Accuracy has to be defined by field, geography, role, and date. Measure email deliverability, phone connectivity, employment accuracy, and company matching separately.
Not necessarily. SDRs may value browser capture and workflow, while API buyers need rate limits, identifiers, match billing, licensing, and predictable schemas.
Start with at least 100 records spread across the real countries, company sizes, and roles. Keep the sample identical across vendors.
Test the exact market
before you commit.
Count and preview the segment, then compare the cost of usable verified output on the same sample.
