Oxford City Labour Party.

• Corporate body

Oxford City Council, 1974 -

• Corporate body
• 1974 -

Oxford Borough Council, United Kingdom.

• Corporate body
• 1889-1974

Oxford and District Gas Company

• Corporate body
• 1912-1965

Oriel Press Publisher

• Corporate body
• 1947-2020

Office of the High Commissioner for India (Great Britain).

• Corporate body

Nuffield Trust, 1940 -

• Corporate body
• 1940 -

November Club

• Corporate body
• 1990 -

Nothern Arts Association

• Corporate body
• unknown

Northumberland Theatre Company (NTC), 1978-

• Corporate body
• 1978-