Seamless.AI

Real-time B2B contact data for sales prospecting

Freemium

About Seamless.AI

Seamless.AI is a B2B sales intelligence platform used by thousands of sales teams to find and verify prospect contact data at scale. Its database claims 1.7B+ business contacts and 150M+ companies, validated in real-time rather than from static lists. The Chrome extension enriches LinkedIn Sales Navigator profiles instantly with verified emails and phone numbers. A free plan offers 50 search credits/month. Pro plans reportedly range from $79-299/user/month, though pricing is not publicly listed and requires contacting sales. CRM integrations push contacts directly to Salesforce, HubSpot, Zoho, and Pipedrive. Despite claimed 98% accuracy, independent user reviews consistently report 20-30% email bounce rates and outdated job titles — particularly for SMBs and international companies. Multiple verified reports describe aggressive auto-renewal practices and difficulty canceling subscriptions. Seamless.AI is most effective for large enterprise US-focused sales teams doing high-volume outbound to Fortune 1000 targets. Not suitable for SMB prospecting, international markets, or teams prioritizing data quality over quantity.

Key Features

Real-time contact verification — validates emails and phone numbers at the moment of each search

LinkedIn Chrome extension — instantly enriches Sales Navigator profiles with verified contact data

1.7B+ contact database — B2B professionals filterable by industry, title, location, company size, revenue

CRM push integration — sends verified contacts directly to Salesforce, HubSpot, Zoho, Pipedrive

Bulk prospecting — build targeted contact lists with advanced filters and one-click export

Intent data signals — identifies prospects actively researching relevant solutions (Enterprise)

Job change alerts — notifies when tracked contacts change roles or companies

AI Writer — generates personalized outreach messages based on prospect profile data

Pros & Cons

Pros

• Largest real-time verified B2B database — 1.7B contacts continuously updated vs static lists
• LinkedIn enrichment saves hours of manual prospect research per week for SDR teams
• Direct CRM push eliminates manual data entry into Salesforce or HubSpot
• Free plan (50 credits/mo) lets teams test data quality before committing to paid tier
• Intent signals help prioritize outreach to prospects actively in-market for solutions

Cons

• Real-world accuracy is 70-80%, not the claimed 98% — bounce rates of 20-30% widely reported
• Pricing is entirely opaque — Pro pricing not publicly listed, requires a sales conversation
• Multiple verified user reports of aggressive auto-renewals and difficult cancellation processes
• Significantly weaker data quality for SMBs and international companies vs large US enterprises
• Additional credit pack purchases add significant unexpected cost beyond base subscription

Best For

Enterprise SDR teams running high-volume outbound campaigns to large US-based companies Sales teams using LinkedIn Sales Navigator daily who need phone and email enrichment instantly RevOps teams building large targeted contact lists for account-based marketing campaigns B2B SaaS companies targeting Fortune 1000 and established mid-market enterprises Growth-stage companies scaling outbound prospecting beyond what manual research can sustain