A worker
employee
A person or business that pays workers to do a job
employer
A fixed, regular sum of money given to someone for doing a job
salary
A person who manages the workers in the company
boss
Extra money given to a worker (often for especially good work)
bonus
A business that makes or sells things or provides services
company
A person who buys products or uses services
customer
A place where many people work at desks
office
Everyone who works in the company
staff
A job you need to do
task