Tool comparison · Head to headUpdated 9/4/2026
Lead Onion vs Seamless.AI
A factual comparison of features, pricing, and capabilities.
01The contenders
Lead Onion
Buyer intent platform that combines person-based, account-based and website-based intent (topic intent via Bombora, Foundry or Continuity, competitor engagement, events, technologies) with contact reveals and an AI buyer-intent agent, syncing leads into HubSpot, Salesforce, Microsoft Dynamics, Outreach and Slack.
Starting at$500/month
02Line by line
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.
03Capabilities
Feature comparison.
| Feature | Lead Onion | Seamless.AI |
|---|---|---|
| Person Based Intent | ||
| Account Based Intent | ||
| Website Based Intent | ||
| Research Quadrant | ||
| Watchlist | ||
| Account Level Intent | ||
| Topic Intent | ||
| Competitors | ||
| Events | ||
| Technologies | ||
| In-Market Accounts | ||
| Prospects Search | ||
| Real-time B2B contact search engine | ||
| Email and cell phone lookups | ||
| Pitch intelligence | ||
| Data enrichment | ||
| Buyer intent data (add-on) | ||
| Job changes tracking (add-on) | ||
| Autopilot list building (add-on) | ||
| AI writing assistant | ||
| Chrome extension | ||
| Enterprise security and compliance |
Available
Partial/Limited
Not Available
04Ecosystem
Native integrations.
Lead Onion
SalesforceMicrosoft DynamicsHubSpotOutreachSlackBomboraFoundry
Seamless.AI
SalesforceHubSpotOutreachSalesLoftPipedriveMicrosoft Dynamics 365Zapier
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Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.