Seamless.ai is a real-time B2B contact search engine that finds and verifies direct email addresses and mobile phone numbers for prospects at the moment of search — rather than serving from a static database. Sales teams use it to build prospect lists with high-deliverability contact data, enrich CRM records, and automate multi-channel outreach sequences with AI-assisted messaging.
Product Overview
Seamless.ai's differentiation from static database vendors like ZoomInfo is its real-time verification model: rather than querying a pre-built contact database, Seamless searches and verifies contact information dynamically at the time of request — resulting in lower bounce rates and fresher mobile numbers. Its database claims 1.8 billion+ verified emails and 414 million+ mobile numbers with 100+ live data points per profile. The platform has expanded beyond data discovery to include an Engagement Hub with built-in email automation, an AI dialer, and social selling tools — positioning it as a combined prospecting and outreach platform for SMB and mid-market sales teams. Buyer Intent signals and Job Change tracking add timing intelligence to prospecting, helping SDRs target accounts showing in-market behaviour. Compared to Apollo.io, Seamless.ai emphasises real-time verification over database breadth; compared to ZoomInfo, it is significantly more affordable at smaller team sizes.
Key Features
- Real-Time Contact Verification: Search and verify direct emails and mobile numbers at query time — lower bounce rates than static databases through live verification.
- Buyer Intent Signals: Identify companies showing in-market research behaviour — prioritise outreach to accounts most likely to be evaluating solutions like yours.
- Job Change Tracking: Monitor when target contacts change roles or companies — reach newly placed decision-makers at peak receptivity in new positions.
- AI Outreach Assistant: AI-generated personalised email and LinkedIn message drafts — accelerate outreach with messaging tailored to prospect role and company context.
- CRM Enrichment & Autopilot: Bulk enrich Salesforce and HubSpot records with fresh contact data — automated enrichment workflows keep CRM contact data current without manual effort.
Best For
SMB and mid-market SDR and sales teams that need affordable, high-volume B2B contact data with strong mobile number coverage — particularly those building outbound sequences where direct-dial numbers significantly improve connect rates.
Pricing
Free tier with 50 credits. Pro and Enterprise plans with custom credit volumes. Contact Seamless.ai for current pricing.
Key Integrations
Salesforce, HubSpot, Outreach, Salesloft, LinkedIn Sales Navigator, Marketo, Zapier, Pipedrive, Microsoft Dynamics, Gmail
Pros
- Real-time verification model produces fresher mobile numbers and lower email bounce rates than static database vendors
- Combines contact discovery, intent data, and outreach tooling in one platform for SMB teams
- Significantly more affordable than ZoomInfo at comparable contact volumes for smaller teams
- Job Change tracking helps SDRs catch decision-makers at the highest-receptivity moment
Cons
- Data coverage outside North America is thinner than ZoomInfo or Cognism for EMEA and APAC prospecting
- Built-in outreach tools less sophisticated than dedicated sales engagement platforms like Outreach or Salesloft
- Credit-based model can make cost unpredictable at high prospecting volumes without careful monitoring
