Just me. I contract to two psaps; in one I manage a distributed sde database and the various jurisdictions take care of their piece of the pie. At least for the most part. In the other, I work fairly closely with the county gis team and we exchange edits as needed.
Three counties served are Salt Lake, Weber, and Morgan. Somewhere in the vicinity of a million people, and a bunch of agencies.
That should just about do it....