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Harmonic is the source of truth for startups

Harmonic helps you monitor millions of companies and surface the ones showing breakout signals.

Track portfolio trajectory, identify category leaders before momentum rounds, and move with conviction.

Proprietary data on millions of companies with AI that automates your workflows from discovery to decision.

Meet Scout
The AI agent made for investors
Find
Search the way you think.
Scout maps markets, evaluates momentum and understands intent.
Hey Scout. Where are the opportunities in the AI infra stack? Highlight category leaders, and describe their differentiation
Screen
Research opportunities that match your criteria.
Save hours of sifting through results.
Create a research report. I want to see whether their founding team and product trajectory match my thesis on vertical AI infrastructure
Analyzed founding team background
Mapped competitive positioning
Assessed growth trajectory
Reviewed funding history
Act
Scout prioritizes, drafts, and delivers.
Insight to action in one conversation.
Draft outreach
Acme
Hi Max,

I've been tracking the shift to agent-based observability and Acme keeps coming up as the category leader. Your traction with Fortune 500 dev teams and technical approach (agents vs legacy polling) maps directly to our thesis on next-gen infrastructure.I'd love to learn more about your product roadmap and how you're thinking about defensibility as Datadog and New Relic add AI features.Worth a conversation?Best,[Your Name][Fund Name]

“Harmonic is our main source of data, and just a great vendor.

The people data is really special and the end-to-end data workflow is beautiful.”

– $80B Growth Investor

See the companies showing momentum

Get notified when your targets hit 
inflection points

Track leadership moves and team quality

Get alerted when exciting talent joins promising companies

Map and monitor your team’s network

Track connections, movements and communications, making every intro warm

Enhance your entire workflow

Organize sourcing and win deals on Harmonic
Manage your top-of-funnel with custom fields or enrich your CRM with our API
Instant insights from the Harmonic Chrome Extension
Download Extension

“It replaces manual work and people like the UI so they're actually using it. It's very easy to use, all in one place, intuitive.”

– Top 5 Hedge Fund

For developers

Developer-centric

Integrate your way

Expertly crafted API
Integrate with REST or GraphQL, tailor your integration strategy with our flexible API.
Complete Bulk Delivery
Build and model with low latency and maximum flexibility by having the complete startup database delivered directly to your data warehouse or cloud storage bucket.
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query Query($getCompaniesInSavedSearchesByIdOrUrnId: String!) {     
 getCompaniesInSavedSearchesByIdOrUrn(idOrUrn:123){
  name
   description
    headcount                                                       
   funding {
     fundingTotal
     fundingRounds {
       fundingAmount
       investors {
         investorName
         isLead
       }
       fundingRoundType
     }
   }
   highlights {
     text
   }
   tagsV2 {
     displayValue
   }
   website {
     domain
   }
   webTraffic
   tractionMetrics {
     webTraffic {
       ago30d {
         percentChange
       }
     }
     headcountEngineering {
       ago90d {
         percentChange
       }
     }
   }
 }
}
}
REQUEST
GET https://api.harmonic.ai/savedSearches:results/123
RESPONSE
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{

   "count": 1,

   "results": [

     {

         "entity_urn": "urn:harmonic:company:123456",

         "id": 123456,

         "initialized_date": "2020-10-27T08:07:19.940106",

         "website": {

           "url": "string",

            "domain": "string",

            "is_broken": true

          },

          "customer_type": "B2C",

          "logo_url": "string",

          "name": "string",

Visionary investors run on Harmonic

“Harmonic instantly turned Floodgate into a data-driven firm. Its automated tools have become fundamental to our sourcing and networking efforts.”
Floodgate
Mike Maples
Co-founding Partner at Floodgate
“The Harmonic platform has decisively enhanced my productivity.”
Teamworthy
Brian Cashin
VP at Teamworthy
“If we lost Harmonic it would be a 9/10 bad day”
Anonymous
Anonymous
From a Top 3 VC Firm
“…Harmonic’s Chrome extension has become my default tool when coming across a new business”
Ben Kany
Principal at Bedrock
“They have the best data, the easiest-to-use API, and they’re working on a number of capabilities that will soon replace many of the other systems we’re using”
Fin Capital
Fan Wen
Investor at Fin Capital
“Harmonic uncovers the earliest-stage companies from a variety of data sources well before other providers do”
Ridge Ventures
Zain Rizavi
Principal at Ridge Ventures