Gamification with Branches Rather than Users

Hey! We are looking at launching a contest for our risk & compliance coursework. I haven’t used gamification outside of testing** 

Our Compliance team would love it if we could have leaderboards like highest # of courses completed by a specific branch, rather than a user. In the below diagram, we’d love to have a contest where currently we’d track top # of completions by division. Under each division, we’d have a winning office that gets some party or swag. Our organization has 900+ offices that we’d need to track. 

Our use case for branching is:

• Top Corporate
  • Company 1
    • Corporate
      • NY
      • IL
      • AZ
    • Field
      • Division 1
        • Territory 1
          • Region 1
            • Office 1
            • O2
            • O3
          • R2
          • R3
        • T2
        • T3
      • D2
      • D3
  • Company 2
  • Company 3

Has anyone used gamification in any way outside of top user?