Harmonic Review 2026
The startup discovery engine
What is Harmonic?
Harmonic is a startup discovery and intelligence platform with proprietary data on 30M+ companies and 190M+ people, paired with an AI agent (Scout) that automates research from sourcing to outreach. It serves investors and GTM teams seeking to find, evaluate, and act on companies and founders.
Best for
Mixed
Use cases
- Venture capital sourcing
- Growth capital monitoring
- Corporate development
- GTM prospecting
Key features
30M+ companies & 190M+ people database
Scout AI research agent
Network mapping & alerts
REST/GraphQL API and MCP
Chrome extension
Pricing
Model
contact-sales
Price range
Demo-led; pricing page exists but plans require booking a demo.
Free tier
No
Integrations
Harmonic integrates with 5 tools including:
Zapiern8nChrome ExtensionMCPAPI
Market position
Market score
22
Share of voice
Category rank
#76 of 116
GTM Developer Tools
Notable customers
HubSpotNotionKleiner PerkinsBessemer Venture PartnersAccelNEABrexPostHog
Market data from Adam's GTM Report.
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