Harmonic
Editor's pickStartup discovery engine for venture investors
4.6Enterprise / CustomBest for Seed and Series A funds running systematic sourcing
Sourcing Signals Founders
Overview
Harmonic is a startup-discovery platform that indexes tens of millions of companies and founder profiles so venture firms can find companies at or before formation. It tracks founding teams, stealth signals, headcount changes, and funding events, then pushes matches into watchlists, alerts, and the firm's CRM. Funds use it to run systematic, thesis-driven sourcing instead of waiting for warm intros, and to spot repeat founders and notable operators the moment they leave to start something new.
Key features
- Database of tens of millions of startups and founders
- Stealth and pre-launch company detection
- Founder and team tracking (repeat founders, notable departures)
- Saved searches, watchlists, and alerts
- CRM sync (Affinity, Salesforce) and Slack notifications
- API for custom sourcing pipelines
Pros
- Catches companies earlier than funding-announcement databases
- Founder-level tracking is genuinely differentiated
- Clean integrations into VC CRM workflows
Cons
- Enterprise pricing is a stretch for solo GPs
- Signal volume requires tuning to avoid noise
What people say
Illustrative"We see companies at incorporation, weeks before they show up anywhere else. It changed our top-of-funnel entirely."
Partner
Seed-stage venture firm