Open source software (OSS) has transformed the technology industry by enabling collaboration, innovation, and cost-effective development. However, companies looking to build a business around such software face unique challenges when it comes to monetisation. The core issue is that open source licences grant users extensive freedoms, which can make traditional commercial models less effective. Thus, a well-structured legal strategy is essential for businesses seeking to profit while complying with open source requirements.
This article explores the legal strategies that companies can deploy to bring OSS to market effectively. It examines licensing decisions, intellectual property considerations, compliance obligations, enforcement mechanisms, and hybrid business models that balance openness with commercial viability.
Choosing the Right Open Source Licence
The foundation of any commercial open source strategy is the choice of licence. Broadly speaking, open source licences fall into two major categories: permissive and copyleft.
Permissive Licences
Permissive licences, such as the MIT Licence, BSD Licence, and Apache 2.0, allow for nearly unrestricted usage, modification, and redistribution. They do not require derivative works to be open-sourced, making them ideal for companies that wish to incorporate open source components into proprietary software.
From a business perspective, these licences offer the advantage of reducing compliance risks and encouraging wide adoption. However, they also provide fewer opportunities for monetisation, as competitors can integrate the software into their own products without contributing back.
Copyleft Licences
Copyleft licences, exemplified by the GNU General Public License (GPL) and Affero GPL (AGPL), require derivative works to remain open source and be distributed under the same terms. This ensures that enhancements and modifications are shared with the community but can create significant challenges for commercial entities.
Companies must be particularly aware of the viral nature of strong copyleft licences, which can extend to proprietary products if not managed carefully. The AGPL goes even further, covering software accessed over a network, making it critical for cloud-based services to be vigilant about compliance.
Selecting the appropriate licence for a commercial project depends on the company’s business model, competitive strategy, and target market. Some successful open-source-based enterprises—such as Red Hat and MongoDB—have navigated these challenges by adopting hybrid licensing strategies.
Dual Licensing as a Business Strategy
One effective strategy for commercialisation is dual licensing, where the same software is available under both a community-friendly open source licence and a proprietary licence for corporate customers. This approach allows businesses to offer their product freely to the open source community while monetising it through enterprise licensing.
Companies such as MySQL and Qt have successfully employed this model by offering a GPL-licensed version alongside a paid proprietary version that does not impose open source restrictions. This method works well for firms that provide software components which enterprises may want to incorporate into proprietary products without legal risk.
However, dual licensing requires careful IP management, ensuring that all contributions to the open-source version are fully owned or properly accounted for. Without clear contributor agreements, third-party-owned contributions can complicate or even prevent the offering of proprietary licences.
Contributor Agreements and Copyright Assignment
Ownership of intellectual property is crucial for any business looking to commercialise an open source project. Without explicit rights over contributions, a company may face significant hurdles in licensing its software. There are two primary legal tools to manage this: Contributor Licence Agreements (CLAs) and copyright assignments.
CLAs ensure that external contributors grant the company sufficient rights to modify and commercially distribute the software. They typically include licensing terms that allow the original author to continue offering the software under both open and proprietary licences. Many large OSS projects, such as Apache and Android, require contributors to sign CLAs before their code is accepted.
Copyright assignment, which transfers full ownership of a contributor’s code to the company, provides even greater control. However, it can deter community participation, as developers may be reluctant to surrender their rights entirely. The Free Software Foundation (FSF) requires copyright assignment for contributions to GNU software to ensure consistent legal enforcement of its licences.
Enforcing Open Source Compliance
Adhering to open source legal obligations is critical for businesses relying on OSS, both to maintain reputational trust and to avoid potential litigation. While open source software is generally freely available, violations of its licence terms can result in costly legal disputes and injunctions.
The most common compliance issues include failure to provide source code when required, improper attribution of open-source components, and unauthorised relicensing of copyleft-licensed code. Organisations should implement thorough open source management policies, including:
– Software Composition Analysis (SCA): Using automated tools to track open-source dependencies, identify potential risks, and ensure licensing obligations are met.
– Internal Compliance Training: Educating employees on open source usage rules to prevent unintentional violations.
– Open Source Review Boards: Establishing dedicated teams to oversee compliance and approve OSS usage in company products.
Some businesses also maintain a Legal Defence Fund to address potential enforcement actions. The Software Freedom Conservancy and the Free Software Foundation are among the most active organisations in holding companies accountable for open source licence violations.
The Rise of Source Available Licensing
Given the challenges associated with traditional open source licences, many companies have turned to an alternative approach known as source-available licensing. These licences allow users to freely view and modify the code but impose specific restrictions on its commercial use.
Examples include MongoDB’s Server Side Public Licence (SSPL) and Elastic’s Elastic Licence, which prevent large cloud providers from offering their software as a service without contributing back financially. These licences have become particularly popular in response to companies like Amazon using open source products without contributing to their development.
While source-available licences are not considered “open source” under the Open Source Initiative’s (OSI) definition, they represent a pragmatic middle ground for balancing openness with business sustainability.
Monetisation Strategies for Open Source Businesses
Successful commercialisation of OSS is not solely a legal challenge—it also requires a viable business model. Common monetisation strategies include:
– Support and Services: Providing paid technical support, consulting, and managed services for open source products. Companies like Red Hat have built billion-dollar businesses around enterprise support offerings.
– Open Core: Offering a base version under an open source licence while reserving premium features for paying customers. GitLab and HashiCorp have successfully leveraged this model.
– Cloud-Hosted SaaS: Providing the software as a managed cloud service, ensuring revenue while maintaining an open source core. Examples include Databricks with Apache Spark and Automattic with WordPress.com.
– Custom Licensing: Licensing the software to enterprises with additional warranties, indemnifications, or compliance assurances that are not available under the open source version.
Each model has its own legal implications, particularly concerning intellectual property rights, licensing compatibility, and contractual obligations with customers.
Legal Considerations for Open Source Startups
Startups built around open source software need to establish strong legal foundations early on to ensure long-term success. Key considerations include:
– Trademark Protection: While software code is open source, branding and trademarks can be proprietary. Companies should register trademarks to control the use of their software’s name and logo. The Mozilla Foundation and Linux Foundation both actively enforce their branding rights.
– Patents and Defensive Strategies: While OSS generally discourages software patents, some companies use them for defensive purposes to protect against litigation. The Open Invention Network (OIN) enables open source firms to share patent protections.
– Investor Concerns: Investors may be wary of funding OSS businesses without a clear monetisation strategy. Legal clarity on licensing, ownership, and business models is crucial for securing venture capital.
Conclusion
Turning open source software into a successful business requires careful legal and strategic planning. Companies must select appropriate licences, manage intellectual property rights through contributor agreements, ensure compliance with open source obligations, and explore monetisation strategies that balance community engagement with commercial objectives.
As the open source landscape continues to evolve, businesses must remain adaptable, navigating legal complexities while embracing the collaborative ethos that defines OSS. By leveraging a thoughtful combination of licensing models, enforcement mechanisms, and business strategies, companies can build profitable ventures that thrive in an open software ecosystem.