Amplify Partners
Amplify Partners is an early-stage venture capital firm founded in 2012 and headquartered in Menlo Park, California, with a second office in San Francisco. Amplify positions itself as "the first investor for technical founders" — engineers, researchers, and scientists who have felt a problem viscerally and are compelled to spend a decade solving it. The firm invests primarily at the seed and Series A stages, with check sizes generally ranging from roughly $1M to $10M (often around $3M at seed), and continues to back companies through growth and IPO. Its thesis concentrates on deep technical categories: developer tools and computing infrastructure, machine learning and artificial intelligence, data and analytics, cybersecurity, and digital biology. In June 2025 Amplify announced roughly $900M in new capital across three vehicles — Fund 6, Fund 6 Select, and Amplify Bio. Notable portfolio companies include Datadog, Fastly, dbt Labs, Temporal, Chainguard, LangChain, Runway, and Recursion.
Amplify Partners has 114 portfolio companies tracked on the APIs.io network, of which 49 (43%) publish APIs indexed here.
Its highest-rated API providers on the network are Einblick, LightCyber, Fastly, Temporal, Prisma.
Portfolio on the Network
Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.
Exemplar 4 Complete, well-documented, and agent-ready
Developing 11 Usable, with meaningful gaps to close
Thin 17 Limited public surface area
Emerging 11 Early or largely undocumented
Minimal 1 Almost no public developer surface
Rest of Portfolio
65 further portfolio companies that don’t yet have a provider page on the network.
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Properties
Portfolio
Where the firm publishes its investments
Firm
The firm itself