Keep in mind that "core team" does not mean "core developers" here. The PostgreSQL core team's responsibilities are more about governing the community (see http

Keep in mind that "core team" does not mean "core developers" here. The PostgreSQL core team's responsibilities are more about governing the community (see https://www.postgresql.org/developer/core/ https://www.postgresql.org/developer/core/). When it comes to development, it might be better to look at committers, i.e. people with the right to commit stuff, recognized contributors, or even people who submitted patch to a recent commitfest: * https://wiki.postgresql.org/wiki/Committers https://wiki.postgresql.org/wiki/Committers * https://www.postgresql.org/community/contributors/ https://www.postgresql.org/community/contributors/ * https://commitfest.postgresql.org/29/ https://commitfest.postgresql.org/29/ And those groups are much larger and more diverse (in terms of employers). Plus if you look the the stats published by Robert Haas, some of the most active developers are working for other companies. Edit: That being said, I'd love to see people from other companies participating in the community, and I'm generally trying to help new contributors with their patches.