The Rainbow Factory is a minor location in The Amazing World of Gumball. Nicole works as a saleswoman here. As its name suggests, the factory produces rainbows. Nicole always wears a rainbow button on her uniform shirt, which symbolizes the factory.
- "The Flakers": Nicole calls Darwin from the factory to check up on Richard.
- "The Game": Nicole works in the Rainbow Complaints Office.
- "The Fan": Gumball and Darwin try to save it from destruction (that they apparently caused), but failed because of Sarah.
- Masami's father is the Rainbow Factory's owner.
- The sign on the wall in Nicole's office reads:
- NO Drooling
- NO Passing Notes
- NO Daydreaming
- NO Sneaky Eating
- NO Sudden Moves
- Nicole's office is different in the second season as shown in "The Flakers". This is probably because of her getting fired in "The Helmet".