Yes, there are several larger fleets out there, some good, some bad. TrekBBS should maintain it's identity fleet as is. However, there is nothing wrong with being allies with another fleet. Good for practicing PVP or cooperating on missions.
There are an almost unlimited number of small fleets, many are one player deep. I wish Cryptic would do something like LOTRO which disbands kinships that fall below a certain number.
I saw a ship that I want, but it requires a tier 5 shipyard. Probably take a while to get there. :-)
I have a message from the post office that a package arrived for me, so I'm headed there now. Perhaps it's my SWTOR game.