1. Freemium Model: Many companies use OSS as the basis for a freemium model. They offer a basic version of the software for free and charge for premium features, additional services, or customizations.
2. Support and Services: Another common model is to provide the software for free but charge for support, training, and consultation. This approach can be lucrative, as businesses are often willing to pay for reliable support and expert advice.
3. Dual Licensing: Some companies use a dual licensing model, offering the software under an open-source license as well as a commercial license. This allows businesses to use the OSS freely while offering proprietary features or support under the commercial license.