Well, there are quit a few more:
M.P.A.A. Motion Picture Association of America
A.F.T.R.A. American Society of Television and Radio Actors
S.A.G. Screen Actors Guild
N.A.B. National Association of Broadcasters
S.M.P.T.E. Society of Motion picture and Television Engineers
A.S.C.A.P. American Society of Composers Authors and Publishers
B.M.I. British Music International
Writers Guild (anyone who disagrees that this is a regulatory agency...think about the junk we had to put up with during the strike)
Live media, you have Actors Equity
and I.A.T.S.E. etc etc...
FTC, FCC...those are two.