Red Hat
https://www.redhat.comRed Hat, Inc. (founded in 1993) is the world's largest open source software company, currently based in North Carolina, U.S. The company specilize in providing open source software (for example, operating system) to businesses and the public. The software products of the company are developed by community members and core employees. Red Hat Enterprise Linux and Fedora are the mainstream software products of the company, are open-source Linux operating system for servers and desktop computers, they are freely available for everyone while the company charges for those services which they provide with thier software, such as support, training, etc.
Red Hat, Inc. is one of the largest contributors of open-source software community, which has contributed immensely to many large open source software projects such as the Linux kernel, the GNOME Desktop Environment and LibreOffice.
