I have seen both OOO and OOF used.
The abbreviation NAIOP stands for National Association of Industrial and Office properties. This is a trade group for investors and developers of commercial real estate.
There are many meanings for the abbreviation IPOS. The most common is Initial Public Offerings, used in stocks.It could also stand for Intellectual Property Office of Singapore or International Psycho-Oncology Society. It just depends on which one you are exactly looking for.
The postal abbreviation for Maine is ME.
The abbreviation for et-cetera is etc.
Co. is a typical abbreviation for company.The most accepted abbreviation for company is co. It is usually capitalized in use, such as Best Tractor Co. or Honeywell Heating Specialty Co.
OK is the abbreviation used.
PO
No known abbreviation.
MO i believe is the abbreviation that you are looking for.
GPO
Post Office!!
The common abbreviation for "office" is "OFC." Another frequently used abbreviation is "Off." These abbreviations are often used in business contexts or informal communication.
The abbreviation 'OED' can stand for many different things including the Office of Economic Development, The Office of Enrollment and Discipline, and Office of the Executive Director.
TSO (The Stationery Office)
Post Office!!
Home Box Office
Office of Management and Budget