To give the companies I've worked for a bit more of a memorable naming scheme, I've taken the advice of two people and renamed them -- keeping their order by using the radio phonetic alphabet as part of their name. Thus, "Company E" is now "Echo Communications", while "Company I" is now "India, Inc." Yes, I tried to have some fun with the names.
Should any of the names I came up with actually refer to a real company, be assured, they are definitely not the same company. I've never worked for a company named herein, with the exception of Raytheon (which, since I named in the prologue, I figured I'd leave as-is).