Epsilon3

Epsilon3 develops a web-based software platform for managing procedures, resources, and operations across complex engineering programs. The platform replaces manual processes built on documents, spreadsheets, and wikis with digital workflows that support real-time collaboration, automated data collection, and revision control. Core modules include Execute for standard operating procedures, Test for requirements tracking, Build for parts and assembly management, Plan for scheduling, Analyze for issue tracking, and Discover for telemetry analysis.

The company serves aerospace, defense, energy, and other regulated industries, with customers including Blue Origin, Sierra Space, Axiom Space, Firefly Aerospace, Redwire, Virgin Galactic, and NASA. Epsilon3 holds FedRAMP High authorization and supports NIST 800-171, ITAR, and SOC 2 Type II compliance. Founded in 2021 by former SpaceX and Google engineers, the company has raised $19 million in total funding through a 2022 Series A.