Welcome on board
A number of the respective websites have an “about us” section.The only trouble is that they sometimes do not go back far enough.
As an example to kick things off,N2 Effect is the brainchild of Tony Valdez and Chris Kline.Their “about us” bit hints another company which happened to be TM Century (now Jones TM) where The “Big Phat Kiss” demo was amongst their output while they were there.
What you will find is that a few of the imaging companies are linked due to a particular person being with one company before going out on their own,mergers,buyouts,etc.
I'm sure the true experts will be able to help you out.After all Jon Wolfert started jingle collecting and ended up being chief honcho of JAM Productions.