Evergreen has a "core team" of experienced developers who work within the community and vet patches from other developers and each other (see: How to participate in development). Some of these people work for commercial companies, some work directly for libraries, and some are simply volunteers. This team has write access to the official(*) Subversion repository containing the Evergreen source code and its history, yet others are able to clone and maintain their own branches of the software. For software to be open source software, anyone with the code must be allowed to use, modify, and distribute it, but that does not mean its users are subject to the whim of others. Ultimately, it is the community as a whole that determines what Evergreen is, what goes into it, and who the committers are.

The list of active committers with Subversion user name and current affiliation. "Active" is defined as committing code within the last six months:

Inactive committers, with Subversion user name. "Inactive" is defined as having last committed a patch over six months ago:

* A note on the word "official": Evergreen is currently trademarked by the Georgia Public Library Service (GPLS), and they control the name "Evergreen". The copyrights are spread amongst many people and organizations. Because the software is open source, it may be "forked" by others as long as they do not use the trademark. GPLS plans to give the trademark to a community-formed legal entity (be it a foundation, non-profit, etc.)