promotion department; development department
Used in organizational names, typically as a suffix attached to a specific area of activity (e.g., 営業推進部, 新規事業推進部). Functions as a noun or noun suffix.
He was assigned to the sales promotion department.
A new business development department was established.
開発部 is a 'development department' focused on creating new products or technology. 推進部 emphasizes driving forward or promoting existing initiatives.
Compound of 推進 (promotion, propulsion) + 部 (department, division).