Headquarters / main office of the entire business enterprise, whether
it is local, national, or international.
Executive
Dealing with high levels of management and strategic decision-making.
Managerial
Responsible for managing staff, projects, and operations, and for
tactical decision-making.
Administrative
Assisting executive and managerial ranks (e.g. Executive Assistant /
Personal Assistant / Secretary).
Clerical
Dealing with 'paperwork’ (real or computerized).
Maintenance
Responsible for the upkeep of the company’s assets. Can comprise
both preventive maintenance and repair functions.
Back office
Dealing with such activities as billing, networking, accounts
receivable / payable, payroll.
Support
Provide assistance to a higher-level authority (personnel can be
professional or non-professional).
Regional
Dealing with large-scale company operations outside of headquarters Regions can be arbitrary areas within a country ，or can consist of entire countries or even groups of countries(eg.Europe,Asia).
Field
Dealing with company affairs at any level other than corporate (also commonly used to describe personnel working outside of the office).
