3 letter acronyms of companies I have worked at

I just thought of all the 3 letter acronyms of companies I have been employed by, CAS, BDP, EDB, RHP, GMJ. :?

Anyone do better?

Spike

CBU, CBC, RBC, TCL, TSL, VII

ILM

Industrial Lumber Materials

…yeah, we did a stint of making tea it ILM as well!