Mom is the completely ruthless CEO of Mom's Friendly robot Company. She's got a Mu-Soft style lock on the 31st Century's robot and robot oil market. She first appears in conflict with Fry over the universe's last can of anchovies.
Mom has on occasion sent forth her robots to seize control of the world. She also tried to buy out Planet Express
While Mom generally hangs with her evil sons, Professor Farnswoth is an old flame that flares now and then.