A nonprofit trade association, owned by no single company, chartered to keep enterprise-grade Linux free for everyone who depends on it.
In 2010, Ron Jagannathan and Paul Robinson founded the FinLinux operating system as a subsidiary of Tomache, Inc., a company specializing in high-frequency trading (HFT) engines built on the Solaris OS.
When Oracle abruptly terminated the OpenSolaris project in August 2010, effectively ending future open-source development of Solaris, the financial technology community faced a critical gap. Solaris had long been a trusted foundation for ultra-low-latency trading systems — and its sudden closure left firms without a reliable, open platform for next-generation financial applications.
FinLinux was created to fill that gap. Purpose-built for high-frequency trading, FinLinux delivers a hardened, performance-optimized Linux distribution engineered specifically for financial workloads. Its mission: to provide a fast, stable, open, and deeply tuned operating system capable of running the most demanding trading and market-data applications with precision and reliability.
FinLinux continues to embody the original vision — a modern, open-source operating system designed for speed, determinism, and financial-grade performance.
For years, a small number of downstream rebuilds gave organizations a free, drop-in replacement for costly enterprise Linux subscriptions. When the terms of upstream source availability shifted industry-wide, many of those projects had to change course or shut down — and a lot of production infrastructure was left looking for a genuinely free, genuinely stable alternative with a real support lifecycle behind it.
FinLinux OS was founded to fill that gap permanently, not opportunistically. Rather than being backed by a single vendor with commercial incentives to eventually monetize the OS itself, FinLinux OS is governed by an independent nonprofit foundation whose only product is the continued existence of a free, RHEL-compatible operating system.
The FinLinux OS Foundation is a member-funded nonprofit trade association. It owns:
It does not sell the operating system, sell support contracts directly, or answer to any single corporate parent. Funding comes from tiered Foundation memberships and sponsorships — see Membership — and day-to-day engineering decisions are made by FLESCo, the FinLinux Engineering Steering Committee, described on the Governance page.
Ron Jagannathan and Paul Robinson found FinLinux OS as a subsidiary of Tomache, Inc., after Oracle's termination of OpenSolaris leaves financial technology firms without an open, low-latency platform.
The FinLinux OS Foundation is formed as an independent nonprofit trade association, taking over stewardship of the project.
First stable release, binary compatible with upstream RHEL 8.
Second major release; FLESCo formally chartered.
Build pipelines move to a fully public, reproducible pipeline. See Build System.
Third major release, current stable.