Does anyone have a spreadsheet or similar type app that will determine if two (or more) companies are in controlled group situations? Something where you plug in the different ownerships for different companies and the program will tell which co's are in a controlled group.

The Technical Answer Group has a very nice spreadsheet for such a purpose. Perhaps you are a subscriber?

I just found out we do have access to TAG (yay!). I sent them over a request today. (crosses fingers)