Seamless.AI alternatives

At a glance

We list 5 other sales data tools as alternatives to Seamless.AI: Apollo, Clay, Cognism, Lusha and ZoomInfo.
Apollo, Clay, Lusha and ZoomInfo have a free plan.
Apollo, Cognism, Lusha and ZoomInfo work with Salesforce, as Seamless.AI does.
Apollo, Cognism, Lusha and ZoomInfo work with HubSpot, as Seamless.AI does.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.

5 alternatives

Rated tools are ranked by their reviews. Tools with fewer than 3 reviews are listed alphabetically, never ranked.

Apollo
AI GTM system with B2B data, AI agents and outreach to build pipeline and close deals
No reviews yet
Free plan
Yes
Paid plans from
Basic, $49 (as of October 14, 2026)
Platforms
Web, Chrome extension, API
Integrations shared with Seamless.AI
Salesforce, HubSpot, Outreach, Salesloft
Main features
B2B contact and account data, Email sequences, Waterfall enrichment
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Clay
Infrastructure to get any data, run agentic workflows and launch GTM plays
No reviews yet
Free plan
Yes
Plans
Enterprise: Custom (as of October 19, 2026)
Free trial
14 days
Integrations shared with Seamless.AI
None in common
Main features
Multi-provider waterfall enrichment, Claygent AI research agent, Job change and news signals
Security and compliance
SSO
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Cognism
Precise, compliant B2B data for the companies and decision-makers that matter
No reviews yet
Platforms
API
Integrations shared with Seamless.AI
Salesforce, HubSpot, Pipedrive
Main features
B2B contact and company data, Verified mobile numbers, Intent data
Security and compliance
SOC 2, ISO 27001, GDPR, SSO
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Lusha
B2B data and intelligence layer for GTM teams and AI agents, with verified contacts and buying signals
No reviews yet
Free plan
Yes
Plans
Free: $0 (as of October 19, 2026)
Platforms
Chrome extension
Integrations shared with Seamless.AI
Salesforce, HubSpot
Main features
Verified emails and phone numbers, Buying signals, Contact and company lookalikes
Security and compliance
SOC 2, ISO 27001, GDPR, SSO
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ZoomInfo
AI GTM platform with clean, accurate, compliant and actionable B2B data for every stage of your GTM motion
No reviews yet
Free plan
Yes
Free trial
Yes
Platforms
Chrome extension, API, CLI
Integrations shared with Seamless.AI
Salesforce, HubSpot, Outreach, Salesloft
Main features
B2B contact and company data, Buyer intent signals, CRM enrichment
Security and compliance
SOC 2, ISO 27001, GDPR
Compare with Seamless.AI
Be the first to review

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At a glance

We list 5 other sales data tools as alternatives to Seamless.AI: Apollo, Clay, Cognism, Lusha and ZoomInfo.

Apollo, Clay, Lusha and ZoomInfo have a free plan.

Apollo, Cognism, Lusha and ZoomInfo work with Salesforce, as Seamless.AI does.

Apollo, Cognism, Lusha and ZoomInfo work with HubSpot, as Seamless.AI does.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.