I gave reallycoolwebsite.net a generic-looking logo on purpose as a joke to match the generic name (& because I thought it would be funny to make a very generic-looking logo that changed colors randomly), but when searching the Web for "generic corporate logo" I found this page, which is full of examples of various businesses that have logos that are pretty much exactly identical, down to the fonts used.

Obviously I knew there were a lot of very generic logos out there but I didn't know there were so many of these that were exactly identical. I'm pretty sure I've seen most of these in the wild...