FullContact vs Seamless.AI
FullContact focuses on cross-channel identity resolution and b2c data enrichment. Seamless.AI is built for ai-powered contact finding and email verification. Different tools, different use cases — here's how they compare.
Choose FullContact if…
- You need to resolve customer identities across channels (email, social, device)
- You run B2C or DTC operations requiring consumer-level enrichment
- You want social profile matching for audience enrichment
Choose Seamless.AI if…
- You want AI-assisted contact finding with continuous data verification
- You need direct dial phone numbers at scale
- You want integration with Salesforce and HubSpot for prospecting workflows
FullContact vs Seamless.AI — Feature comparison
| Feature | FullContact | Seamless.AI |
|---|---|---|
| Category | Identity resolution | Contact finder |
| Primary use case | Cross-channel identity resolution and B2C data enrichment | AI-powered contact finding and email verification |
| Data freshness | Database — periodic refresh | Database — periodic refresh |
| Data depth | High | High |
| GDPR compliance | Claimed , US infra | Claimed , US infra |
| Pricing tier | $200–$1,000/month | From $147/month |
| Free plan | No | No |
Different tools for different jobs
FullContact is built for cross-channel identity resolution and b2c data enrichment. FullContact is an identity resolution platform that aggregates customer data from multiple sources to create unified profiles across digital touchpoints.
Seamless.AI serves a different purpose: ai-powered contact finding and email verification. Seamless.AI is a B2B sales intelligence platform using AI to provide real-time contact data, verified emails, and direct dials for sales teams.
💶 Pricing comparison
Both FullContact ($200–$1,000/month) and Seamless.AI (From $147/month) are in a similar pricing tier.
20–30% of B2B contacts change roles every year. Neither FullContact nor Seamless.AI is designed to continuously monitor your existing CRM for job changes and update records automatically — that's a different tool category.
🇪🇺 GDPR and data compliance
Neither FullContact nor Seamless.AI has a particularly strong GDPR documentation posture — both rely on US infrastructure.
For European teams or those with EU customers requiring documented sub-processor chains, the compliance posture of your enrichment vendor matters. Make sure to request a DPA and sub-processor list before committing.
Frequently asked questions
Which is better, FullContact or Seamless.AI?
FullContact and Seamless.AI target different use cases. FullContact focuses on cross-channel identity resolution and b2c data enrichment, while Seamless.AI is built for ai-powered contact finding and email verification. The best choice depends on your team's primary need. For CRM data quality and real-time enrichment, consider Enrich-CRM as a complementary or alternative tool — GDPR-native, from €29/month.
How do FullContact and Seamless.AI compare on pricing?
FullContact is priced at $200–$1,000/month. Seamless.AI is priced at From $147/month. Both are similarly priced. Enrich-CRM starts at €29/month with a free plan (100 credits/month, no card required).
Do FullContact and Seamless.AI integrate with HubSpot?
FullContact HubSpot integration: no native integration. Seamless.AI HubSpot integration: basic sync possible. Enrich-CRM integrates natively with all HubSpot plans, writing enriched data directly to CRM fields.
What is the best alternative to both FullContact and Seamless.AI?
If your primary goal is maintaining accurate CRM data over time — job changes, current titles, company data — Enrich-CRM is a focused alternative. It uses live lookups (not a database), runs on EU servers (AWS Paris), includes job change monitoring and intent signals, and starts at €29/month with a free tier.
Enrich-CRM — real-time CRM enrichment for your existing contacts
FullContact and Seamless.AI are both data tools. Enrich-CRM does something different: it enriches the contacts you already have in your CRM — in real-time, continuously, from the live web. Proprietary LLM on AWS EU Paris (no OpenAI, no Anthropic). 250+ company datapoints, 50+ contact datapoints, continuous job change detection, intent signals. Native HubSpot integration, plus Clay, Salesforce, Zapier, Make, n8n, CSV, and API.
From €29/month, 100 free credits, no annual contract. Full DPA and sub-processor documentation at our Trust Center.