Matrix Partners
Matrix Partners (now branded simply "Matrix") is an early-stage venture capital firm founded in 1977 by Paul Ferri, investing from idea through Series A. Headquartered in San Francisco at 535 Mission Street with a long-standing East Coast office in Cambridge, Massachusetts, the firm is run by former founders and company builders who describe themselves as "contrarians who invest with conviction," backing founders with deep technical expertise and a specific vision of the future. Matrix is a generalist early-stage investor across AI / frontier tech, B2B and enterprise software, fintech, consumer, healthtech, infrastructure, and semiconductors, typically writing seed and Series A checks and leading rounds. Over nearly five decades the firm has backed foundational technology and consumer companies including Apple, HubSpot, Zendesk, Canva, Afterpay, Oculus, Fivetran, Flock Safety, Quora, Postmates, GOAT, and Suno, with a track record spanning semiconductors and networking through today's AI-native startups.
Matrix Partners is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Matrix Partners is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.
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