Founder of a listed tool
Simon Russell
Co-founder and CTO, Prefactor, named behind the Prefactor listing on Anchor Terminal.
What Simon builds
Prefactor B · Agent observability & evals
Prefactor is a hosted service that records AI agent runs as spans, classifies each run's data risk and stores quality evaluations. Agents and scripts reach it through an HTTP and WebSocket API, TypeScript and Python SDKs and a CLI.
Co-founder and CTO, Prefactor, researched 27 October 2026 · the people behind it
Works with
- Matt Doughty Co-founder and CEO, Prefactor
Backed by
Antler Black Nova Venture Capital Func Ventures
Questions
Who is Simon Russell?
Simon Russell co-founded Prefactor and is its CTO. He has held founder, CTO and engineering leadership roles at Antler, Overspecific, Tokio, iflix and Greensync.
What does Prefactor Pty Ltd make?
Anchor Terminal lists Prefactor from Prefactor Pty Ltd. Prefactor is a hosted service that records AI agent runs as spans, classifies each run's data risk and stores quality evaluations. Agents and scripts reach it through an HTTP and WebSocket API, TypeScript and Python SDKs and a CLI.
Who has invested in Prefactor Pty Ltd?
The sources our research read name Antler, Black Nova Venture Capital and Func Ventures.
How are Simon's tools graded?
Prefactor is graded B, 66 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (4)
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