Red Hat’s journey from a small 1993 startup to a company IBM acquired for $34 billion in 2019 traces the story of open-source software becoming a legitimate, enormously valuable enterprise business.
The Original Business Model Innovation
Red Hat’s key insight was selling support, services, and certification for genuinely free, open-source software — rather than selling the software itself, which conflicted with the GPL license most of it was distributed under. This model proved that open source and profitable business weren’t contradictory, well before that was widely accepted.
RHEL and the Free/Paid Split
Red Hat Enterprise Linux (RHEL) became the paid, support-backed product, while Fedora served as its faster-moving, community-driven upstream testing ground — and CentOS, for years, offered a free rebuild of RHEL’s actual source packages, giving users RHEL’s stability without the support contract cost.
The CentOS Controversy
Red Hat’s 2020 decision to shift CentOS from “free RHEL clone” to “CentOS Stream” (a rolling-release preview feeding INTO RHEL, rather than a stable RHEL rebuild) was deeply controversial in the community, directly spawning alternatives like Rocky Linux and AlmaLinux specifically to fill the gap CentOS had left.