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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 for growth signals, hiring velocity, revenue indicators, and market momentum across Harmonic’s database and the entire web.
Rank. Surface companies showing breakout trajectory against your investment criteria.
Analyze. Generate market landscapes, track competitive positioning, and draft investment memos with a single click.

“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.”

See the companies showing momentum

Get notified when your targets hit 
inflection points
Real-time signals for traction and growth

Track leadership moves and team quality

Get alerted when exciting talent joins 
promising companies
Automatically monitor the talent behind breakout startups

Map and monitor your team’s network

Track connections, movements and communications, making every intro warm
Real-time signals for traction and growth

Enhance your entire investment workflow

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

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