Harmonic vs StartupDB

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.

StartupDB is a free database of startups, investors and people, organized around investment relationships and funding rounds. Company records can include funding dates, amounts, investor roles and source URLs, and facts link to sources for checking. Its data draws on reviewed public investor portfolio pages, public news, company and investor websites, and edits by staff, founders and investors. The database is available through a read-only MCP server and REST API, without an account or API key. The MCP server has six tools for searching investors, startups and people and retrieving individual records. The REST API provides GET endpoints for searches, individual records, investor portfolios and company funding activity, returning JSON. Both interfaces allow 120 requests per minute per IP address, with no daily cap. StartupDB says coverage is not complete, so a missing round or investor means only that the information is absent from the database. Dataset facts and compilation are licensed under CC BY 4.0 for commercial reuse with attribution; third-party logos, photos and site text are excluded. Founders and investors can claim and correct pages, and staff review reported issues. StartupDB says it was built at Workshop.