The Business of Open Source: How Companies Build Sustainable Models Around Free Software
An analysis of the key strategies companies like Red Hat and GitLab use to build profitable businesses on top of free, open-source software.

Introduction: The Paradox of Free Software
Open-source software (OSS)—software with source code that anyone can inspect, modify, and enhance—powers a vast portion of the modern internet and enterprise technology stack. From the Linux operating system to the Kubernetes container orchestrator, OSS is everywhere. This presents a fascinating paradox: how do companies build profitable, multi-billion dollar businesses around software that is, by its nature, free? This analysis explores the primary business models that have enabled companies to successfully commercialize open source.
Model 1: The Open-Core Model
This is one of the most common and successful models. A company offers a “core” version of its software as free and open source, which is powerful enough for many users. They then sell a proprietary, commercial “enterprise” version that includes additional features, such as advanced security, management tools, and performance enhancements. The open-source core acts as a powerful marketing and adoption engine, creating a funnel of users who may eventually upgrade to the paid version.
Examples: GitLab, HashiCorp (Terraform), Docker.
Model 2: Professional Services and Support
In this model, the software itself is entirely free, but the company sells professional services and support subscriptions to enterprise customers. These services can include expert consulting, implementation assistance, training, and 24/7 technical support. Large organizations are often willing to pay for the assurance that they have a direct line to the experts who built the software.
Example: Red Hat built its entire empire on this model, providing enterprise-grade support and services for the free Linux operating system. Its acquisition by IBM for $34 billion validated the power of this approach.
Model 3: The Hosted/Managed Service (SaaS) Model
Here, a company takes a popular open-source project and offers it as a fully managed, hosted Software-as-a-Service (SaaS) solution. This model appeals to customers who want to use the powerful open-source software without the headache of having to install, manage, scale, and secure it themselves. The company adds value through convenience, reliability, and ease of use.
Examples: Confluent (managed Apache Kafka), Databricks (managed Apache Spark), Automattic (WordPress.com).
The Symbiotic Relationship
A successful open-source business model creates a symbiotic relationship. The company invests resources into developing and maintaining the open-source project, which benefits the entire community. In return, the community’s adoption, feedback, and contributions help improve the software and create a market for the company’s commercial offerings. It’s a delicate balance that requires a genuine commitment to the open-source ethos.
Conclusion: Building Value Beyond the Code
Building a business around open-source software is not about selling the code itself. It’s about selling value-added services and features around the code. Whether it’s through enhanced enterprise features, expert support, or the convenience of a managed service, successful open-source companies have proven that you can build a highly profitable business while still contributing to the public good of free and accessible software.
What is your favorite open-source project that has a successful commercial company behind it? Share your examples and thoughts on these business models in the comments.



