Harmonic.ai - The complete startup database

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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]

Find companies at the earliest signals

Granular filters on the freshest data

Monitor the people making moves

Filter by background, education, experience and so much more

Your team’s network, mapped and monitored

Stay up to date by syncing connections from inboxes, calendars and LinkedIn

Expertly crafted API

Integrate with REST or GraphQL, tailor your integration strategy with our flexible API.

Efficient bulk import

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",

“Harmonic instantly turned Floodgate into a data-driven firm. Its automated tools have become fundamental to our sourcing and networking efforts.”

Mike Maples

Co-founding Partner at Floodgate

“The Harmonic platform has decisively enhanced my productivity.”

Brian Cashin

VP at Teamworthy

“If we lost Harmonic it would be a 9/10 bad day”

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”

Fan Wen

Investor at Fin Capital

“Harmonic uncovers the earliest-stage companies from a variety of data sources well before other providers do”

Zain Rizavi

Principal at Ridge Ventures

Recruiting at startup speed: How Quantum turns market data into hiring power with Harmonic

Quantum Talent

Harmonic

Read the story →

Inside Sorenson Capital’s repeatable, relationship-driven sourcing engine

Sorenson Capital

Harmonic

Read the story →

Airtree’s playbook for early-stage discovery with Harmonic

Airtree

Harmonic

Read the story →

How Antler Elevate builds a smarter Series A funnel at global scale

Antler

Harmonic

Read the story →

Inside NGP Capital’s data-driven investment engine

NGP Capital

Harmonic

Read the story →

Next Frontier Capital elevates regional investing with Harmonic

Next Frontier Capital

Harmonic

Read the story →

Flybridge leverages Harmonic to uncover high-quality investment opportunities in AI

Flybridge

Harmonic

Read the story →

Pear VC nurtures an active community and long-term relationships with data

Pear VC

Harmonic

Read the story →

Blossom takes a data-driven approach to a comprehensive goldmine of European companies

Blossom

Harmonic

Read the story →

F-Prime offloads data maintenance and actively supports its portfolio companies with Harmonic

F-Prime

Harmonic

Read the story →

←

→

Q1 2026

Harmonic Hot 25 Startups™

Serval

Peec AI

resolve-ai

View all 25 →

Q4 2025

Harmonic Hot 25 Startups™

Lovable

Retell AI

Peec AI

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Q3 2025

Harmonic Hot 25 Startups™

Lovable

Profound

LangChain

View all 25 →

←

→

Describe an industry or product to find companies

US startups using AI for construction software

Wiz competitors in the cybersecurity industry

Early stage startups founded by repeat founders

Describe an industry or product to find companies

Search for startups in your own words

Talent source and alumni-founded startups

Market maps and talent flows in 1-click

Any recent news, partnerships, or launches?

Summarize podcasts featuring the founders

Where have they hired most of their talent from?

Did the founding team work together before?

Evaluate founding team experience

Who do they sell to and how do they price?

Analyze key competitors

Where have they hired most of their talent from?

Any recent news, partnerships, or launches?

Assess funding and investors

Send Scout to run your research

Create, tune and save hyper-specific searches

Identify new promising companies

Effortlessly find the needle in the haystack

Uncover fast growing companies

Monitor network movements, track communications, and make every intro warm

Learn when talent is making moves

Get alerts as soon as a company becomes actionable

Expertly crafted API

Integrate with REST or GraphQL, tailor your integration strategy with our flexible API.

Efficient bulk import

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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REQUEST

GET https://api.harmonic.ai/savedSearches:results/123

RESPONSE

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The startup discovery engine

Discover opportunities earlier, research them faster, and act with confidence.

Proprietary data on millions of companies and the people behind them. Powered by AI that automates your workflow from discovery to decision.

Solutions

“We found 4 out of our last 9 deals on Harmonic”

– Tier 1 VC

Discover

Research

Act

Developer-centric

Integrate your way

Visionary investors run on Harmonic

Meet the companies
leveling up with Harmonic

Harmonic Hot 25 Startups™

Try Harmonic

Schedule your demo today

Meet Scout

The agent made for investors

Sourcing superpowers

Discover hidden gems

Don't miss deals

Get the most from your network

Real-time alerts

Monitor talent and companies

Data everywhere you need it

Generate instant insights

Developer-centric

Integrate your way

Welcometo Harmonic

The startup discovery engine

Discover opportunities earlier, research them faster, and act with confidence.Proprietary data on millions of companies and the people behind them. Powered by AI that automates your workflow from discovery to decision.

Solutions

“We found 4 out of our last 9 deals on Harmonic”

– Tier 1 VC

Discover

Research

Act

Developer-centric

Integrate your way

Visionary investors run on Harmonic

Meet the companies leveling up with Harmonic

Harmonic Hot 25 Startups™

Try Harmonic

Schedule your demo today

Meet Scout

The agent made for investors

Sourcing superpowers

Discover hidden gems

Don't miss deals

Get the most from your network

Real-time alerts

Monitor talent and companies

Data everywhere you need it

Generate instant insights

Developer-centric

Integrate your way

Welcome
to Harmonic

Discover opportunities earlier, research them faster, and act with confidence.

Proprietary data on millions of companies and the people behind them. Powered by AI that automates your workflow from discovery to decision.

Meet the companies
leveling up with Harmonic