At times, it seems like there is only one crew member operating each unit, aside from the main units like the Mothership or Carrier. Other times, small units say things that suggest there might be multiple crew inside. Smaller units may even be remotely operated from larger ones.
In the first missions of Homeworld, we save large pods with people counting several thousands. It seems like a lot of those people are not crew member material and are just regular folks who don't take part in battle.
One of the first Deserts of Kharak missions explains how we must stall for Rachel S'jet and her crew to do their stuff. In the cinematic before she was the only person to sit inside her vehicle, so where are her crew coming from?
Is it said anywhere, maybe in the big manual, how many people man each unit?