paymaster

pay|master /p'eɪmɑːstər, -mæst-/ (paymasters)
1 [N-COUNT] oft with poss
A paymaster is a person or organization that pays and therefore controls another person or organization.
...the ruling party's paymasters in business and banking...
2 [N-COUNT]
A paymaster is an official in the armed forces who is responsible for the payment of wages and salaries. (MILITARY)