
Seamless.AI
AI-powered B2B sales intelligence platform for finding verified contacts, direct dials, and company data in real-time. Build targeted prospect lists faster.
Strong Phone Data,
But Verify Emails First
Seamless.AI excels at real-time contact discovery and phone number lookups for US markets. The intuitive interface makes list-building fast, but email accuracy requires independent verification before campaigns. Best used as a supplementary data source alongside your main engagement platform.
✓ What We Love
- Real-time data refresh catches job changes
- Strong direct dial & mobile phone coverage
- Intuitive UI with fast Chrome extension
- Solid Salesforce & HubSpot integrations
! Could Be Better
- Email accuracy below marketing claims
- Pricing requires a sales call to confirm
- No native email sequences included
See Seamless.AI in Action
Real screenshots from the platform interface.
Contact Search Dashboard
Access 1.4B+ contacts with powerful filtering options

Company Search Results
Find and research companies with detailed profiles

Enrich Your Lists
Upload existing lists and enrich with fresh contact data

Ready to build your prospect list?
Start Free with 50 Credits →Free plan available • No credit card requiredHow Seamless.AI Works
Define Your Target
Use filters like job title, company size, industry, location, and technologies to define your ideal customer profile.
AI Searches in Real-Time
Seamless.AI's engine crawls the web to find and verify contact information, returning emails, phone numbers, and company data.
Build Your List
Select contacts, add them to lists, and export to your CRM. The Chrome extension also works directly on LinkedIn profiles.
Enrich & Sync
Push contacts to Salesforce, HubSpot, or Pipedrive. Use the API for custom workflows and automated enrichment.
Enterprise Compliance
Seamless.AI is SOC 2 Type II certified and compliant with GDPR and CCPA requirements for data handling.
Key Features
Contact Search
Find B2B contacts by title, company, industry, location, revenue, and technology stack.
Direct Dial Discovery
Access 422M+ phone numbers including mobile and direct lines for cold calling.
Email Verification
AI-powered email validation with confidence scores to help prioritize outreach.
Company Search
Research 125M+ companies with firmographic data, org charts, and technographics.
Buyer Intent
Identify companies actively researching solutions in your category.
AI Writer
Generate personalized email copy and messaging using AI assistance.
Chrome Extension
Find contact data directly from LinkedIn profiles and company websites.
Autopilot
Automated list building that continuously finds new contacts matching your criteria.
Pricing Plans
Seamless.AI requires a sales call for exact pricing. Below are estimates based on third-party analysis.
Pro
Enterprise
Note: Add-ons like Autopilot, AI Writer, and Buyer Intent may increase total costs. Annual billing typically required.
Cost Comparison Context
Apollo.io offers built-in sequences and dialer at similar or lower price points. Consider your full workflow needs.
Detailed Pros & Cons
✓ Pros
AI crawls the web continuously, catching job changes and new contacts faster than batch-updated databases.
422M+ phone numbers including direct dials and mobiles—a standout feature for cold calling teams.
Easy-to-use platform with fast onboarding. Chrome extension makes LinkedIn prospecting seamless.
Native connections to Salesforce, HubSpot, Pipedrive, plus RESTful API for custom workflows.
Significantly cheaper than ZoomInfo for small teams needing basic contact data.
✗ Cons
Marketing claims 98-99% accuracy, but independent testing suggests real-world results around 85-90%. Verify emails before large campaigns.
Exact pricing requires a sales call. Add-ons for premium features can increase costs beyond base estimates.
Unlike Apollo.io, Seamless.AI doesn't include built-in outreach automation—you'll need separate tools.
Data quality is strongest for US markets. International coverage may require additional verification.
Annual contracts are standard. Review cancellation terms carefully before committing.
Seamless.AI vs Alternatives
How does Seamless.AI compare to other B2B sales intelligence tools?
| Feature | Seamless.AI | Apollo.io | ZoomInfo | UpLead |
|---|---|---|---|---|
| Starting Price | ~$147/user/mo | $49/user/mo | ~$15K/year | $74/mo |
| Free Plan | 50 credits | ✓ Generous free tier | None | 5 credits trial |
| Email Accuracy | 85-90% | ~91% | 95-98% | 95% guaranteed |
| Phone Data | 422M+ numbers | Moderate | Strong | Limited |
| Email Sequences | No | ✓ Built-in | ✓ Built-in | No |
| Best For | Phone outreach | All-in-one stack | Enterprise | Email accuracy |
Which Tool Is Right For You?

Seamless.AI
Phone Data FocusBest for: Sales teams focused on cold calling who need strong phone number coverage. Works well as a supplementary data source alongside your main engagement platform.

Apollo.io
Free TierBest for: Teams wanting an all-in-one platform with data, email sequences, and dialer built-in. Better email deliverability and transparent pricing. Rating: 4.5/5

ZoomInfo
EnterpriseBest for: Mid-market and enterprise teams with budget for premium data. Highest accuracy (95-98%) with advanced intent signals and orchestration. Rating: 4.1/5

UpLead
Accuracy GuaranteeBest for: Teams prioritizing email deliverability. 95% accuracy guarantee with credit refunds for bounced emails. Transparent pricing. Rating: 4.2/5

Reply.io
Sales EngagementBest for: Teams needing AI-powered sales engagement with multichannel sequences. Combines outreach automation with contact data enrichment. Rating: 4.4/5

Cognism
GDPR-FirstBest for: Teams selling into Europe or requiring strict GDPR compliance. Phone-verified mobiles with Diamond Data and strong EMEA coverage. Rating: 4.4/5

Lusha
Simple & CompliantBest for: Teams wanting easy-to-use B2B contact data with strong GDPR compliance and global coverage. Simple Chrome extension for quick prospecting. Rating: 4.0/5

Jeeva AI
Agentic AIBest for: Teams wanting end-to-end sales automation with agentic AI handling lead discovery, enrichment, multichannel outreach, and meeting booking autonomously. Rating: 4.1/5
Frequently Asked Questions
Should You Try Seamless.AI?
Seamless.AI delivers on its core promise of real-time contact discovery with strong phone number coverage. The intuitive interface makes list-building fast, and the Chrome extension works smoothly on LinkedIn.
However, email accuracy doesn't match marketing claims, so plan to verify contacts before large campaigns. The lack of built-in sequences means you'll need separate tools for outreach automation.
Our Recommendation
Try the free plan to test data quality for your target market. If phone outreach is central to your strategy and you have a separate engagement platform, Seamless.AI can be a valuable supplementary data source. For an all-in-one solution, consider Apollo.io instead.
Ready to Build Your Prospect List?
Access 1.9B+ contacts and 422M+ phone numbers with AI-powered search
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