The Baby Corp is an organization from the Boss Baby. It is the place that all the babies in the world came from. After being applied with baby powder and given a pacifier, the baby is put through the sorting machine which then tickles the baby. If the baby laughs, he or she will be sent to a loving family (thus "being born").
If not, the baby will be sent to the "management" section and trained to become a worker of the organization. The babies in the management section are also given a special formula that prevents them from aging while allowing them to preserve and continue to improve their intellect. Like a normal company, each baby can rise in rank after completing missions assigned to them, with the highest rank being Super Colossal Big Fat Boss Baby.
It is possible for a baby to resign from the organization and choose to be sorted into the family section, provided that he or she retakes the sorting process and knows the place where he/she can be tickled.
The former leaders are Super Big Boss Baby, Mega Boss Baby, Seriously Big Boss Baby, Big Fat Boss Baby, Super Colossal Big Fat Boss Baby, Super Colossal Mega Boss Baby, and possibly Boss Baby. Tim was Super Colossal Mega Boss Baby and then later when he was getting old, he was fired by Big Boss Baby.
- Super Big Boss Baby - Board of Directors
- Mega Boss Baby - Board of Directors
- Seriously Big Boss Baby - Board of Directors
- Big Fat Boss Baby - Board of Directors
- Super Colossal Big Fat Boss Baby - Board of Directors
- Super Colossal Mega Boss Baby - Big Boss Baby
- Given their cloudy appearance and being located in the sky, it can be presumed that the Baby Corp is an equivalent of heaven.
- Although the Boss Baby denied Tim's belief about where the baby came from, it is implied that the pregnancy process also occurs if the baby was sorted into the family section as shown in the ending when Tim's parents picked up the Boss Baby from the hospital and when adult Tim brought his daughter to see her little sibling.