Harmonic.ai - The complete startup database

harmonic.ai
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Harmonic's data engine keeps 30M+ companies & 150M+ professional profiles fresh, so you can always be in the loop when a company just raised a round, just hired a CTO, or just crossed the 1M follower mark on Twitter.

Platform Details

Harmonic (harmonic.ai) is a SaaS-based data platform that continuously crawls and structures public-web information to create a live database of startups, private companies and their key signals. Core features: • 60M+ company profiles with attributes such as head-count, funding rounds, tech stack, job postings and web traffic. • Powerful search & filtering to surface companies that match custom criteria. • Real-time alerts on new fund-raises, hiring bursts, product launches, etc. • Native integrations / API for pushing data into CRMs (Salesforce, HubSpot) or data warehouses. • Collaboration tools for annotating and sharing deal or lead lists inside teams. Target audience: Primarily venture-capital & growth-equity investors for deal sourcing; secondarily B2B sales, partnership and recruiting teams looking for early-stage leads. Business model: Subscription-based (seat licences and/or data-export tier). Enterprise contracts available for unlimited seats / API fire-hose. Best practices: ‑ Define precise filters (sector, geography, traction signals) to cut noise. ‑ Set up automated email / Slack alerts instead of manual searching. ‑ Sync chosen fields to CRM to keep records fresh. Avoid: overly broad searches that return thousands of companies; exporting full data at scale if plan limits do not allow. Social posting cadence, content types and optimal posting days are not applicable because Harmonic is a private data platform, not a social or content-sharing network. Other relevant details: Founded 2019; backed by Coatue, Craft and Sozo Ventures (≈$30M raised). Used by >200 VC firms and revenue teams at companies like Notion and Brex.

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