B2B contact database plus sales engagement and AI prospecting platform.
Seamless.AI
AI Sales, Outreach & Lead GenSeamless.AI is a B2B contact data platform that searches for and verifies emails and phone numbers in real time. It includes a Chrome extension for LinkedIn and company sites, Autopilot for background list building, an AI Writer, and an engagement hub for emailing and calling. It is used by SDRs, recruiters and sales teams focused on phone and email prospecting.
Pricing
Seamless.AI pricing
Free plan (50 lifetime credits); Basic ~$147/mo billed yearly; Pro/Enterprise quote-only
Last checked September 2026 · Confirm on seamless.ai
Features
What Seamless.AI does
- Real-time contact search with verified emails and mobile numbers
- Chrome extension that overlays contact data on LinkedIn and websites
- Autopilot for automated list building
- AI Writer for cold emails and sales copy
- Buyer intent signals and data enrichment
- Connect engagement hub with emailing, calling and tasks
Pros
- Large database with many mobile numbers
- Chrome extension fits a LinkedIn-first workflow
- Free plan to test data quality
- CRM enrichment keeps records up to date
Cons
- Free plan credits are lifetime, not monthly
- Higher tiers are quote-only and require annual contracts
- Outreach features are basic compared with dedicated sequencers
- Data accuracy complaints are common, so bounce rates vary
Fit
Who Seamless.AI is for
Look elsewhere if: Teams that want sequencing and deliverability tools in the same product should look at Apollo.io or lemlist.
For teams & enterprise
Enterprise readiness
SOC 2 Type II report shared under NDA; SSO via SAML, OIDC, Okta, Entra or Google. ISO 27001 is stated as in progress.
- Business / enterprise plan
- Yes
- SSO (SAML / OIDC)
- Yes
- SCIM user provisioning
- —
- SOC 2
- Type II
- ISO 27001
- No
- HIPAA (BAA available)
- —
- GDPR DPA
- —
- Data residency options
- —
- No training on your data
- —
- Audit logs
- —
- Admin controls
- Yes
- Deployment
- Cloud
From the vendor's own security documentation (trust center). "—" = not confirmed. Verify during your security review. Compare all tools.
| Sales & Outreach feature checklist | |
|---|---|
| B2B contact database | 1.3B+ contacts |
| Email sequences | Limited |
| Email warm-up | — |
| Unlimited sending accounts | — |
| LinkedIn steps | Chrome extension (prospecting only) |
| Built-in CRM | No |
| AI personalization | Yes |
| Dialer / calling | Yes |
| Email verification | Yes |
Seamless.AI compared
- Seamless.AI vs Apollo.io
- Seamless.AI vs Instantly.ai
- Seamless.AI vs HubSpot
- Seamless.AI vs lemlist
- Seamless.AI vs Smartlead
- Seamless.AI vs Reply.io
- Seamless.AI vs Hunter.io
- Seamless.AI vs Clay
Buying guides
Alternatives
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