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Harmonic vs StartupWho

Harmonic

harmonic.ai

StartupWho

startupwho.com

Side by side

FigureHarmonicStartupWho
Price from——
Free plan——
Free trialYes—
Open source——
WebYesYes
iOSYes—
APIYes—
Plans published30
Spec score · Startup Databases7.8 (#10)6.5 (#26)
Data sourcesHarmonic says it sources data from legal filings and dozens of public sources, and refreshes it regularly.The homepage names Y Combinator, Techstars, Seedcamp, Antler, a16z, First Round, Greylock, Index Ventures, General Catalyst, Balderton, Founders Fund, and Afore Capital as data sources.
ProductHarmonic describes itself as a startup database that tracks companies and people as they grow, hire, fundraise, launch products, and change direction.StartupWho describes itself as a searchable directory of startups from accelerators and venture capital portfolios.

Plans

Harmonic

  • API accessPriced on request
  • Bulk dataPriced on request
  • Console accessPriced on request

Harmonic pricing →

StartupWho

No plans published.

StartupWho pricing →

In their own words

Harmonic

Harmonic is a startup intelligence database for following companies and people as they grow, hire, raise funds, launch products, or change direction. Its Console and Bulk Data offerings list 40 million companies, 200 million people, and 250 thousand investors. Harmonic says it combines legal filings with dozens of public sources and refreshes the information regularly. Scout lets users ask questions about startups or schedule AI agents to find, evaluate, and monitor companies, people, deals, and markets. Network Mapping connects LinkedIn relationships, email and calendar events, and CRM engagements with companies and operators in the database. The maker positions Harmonic for venture capital, growth capital, corporate innovation, and go-to-market prospect discovery. It offers REST and GraphQL APIs, MCP connectivity, and bulk delivery through S3, BigQuery, or Snowflake. Integrations include Slack alerts, Google accounts, Affinity, LinkedIn connections, Polytomic, and Zapier. Console, API, and Bulk Data prices are available on request. Scout includes up to $750 of credits per user each month, and the Scout API has a $250 free credit allowance.

Visit harmonic.ai

StartupWho

StartupWho has no write-up on Specifiction yet; its figures are above.

Visit startupwho.com