Determinate Systems

Determinate Systems is a developer tools company founded in 2021 that brings the Nix package manager and NixOS ecosystem to enterprise software teams. Co-founded by Eelco Dolstra — the original creator of Nix — and Graham Christensen, Determinate Systems builds products that make software reproducible, secure, and consistently deployable across laptops, CI pipelines, cloud infrastructure, and critical systems. Its core offerings include Determinate Nix (an enterprise-grade Nix distribution), FlakeHub (a flake registry and cache platform), Determinate Secure Packages (a CVE-remediated, SLA-backed fork of Nixpkgs with FIPS-compliant variants), and FlakeBOM (a CLI for generating CycloneDX SBOMs from Nix flakes). The company is headquartered in Pittsfield, Massachusetts and targets engineering teams seeking stronger software supply chain security, reproducible builds, and reduced operational risk in regulated or high-stakes environments.