| Outdoor & Sports Company (OSC) Limited |
| Outsider |
| OVO Group Ltd [Formerly Ovo Energy (Group)] |
| Oxfam Activities Limited (OAL) |
| Oxfam GB |
| Oxford EMI |
| Oxford Policy Management |
| Oyla (Popular Science) |
| P2 Energy Solutions |
| Pablo Media |
| Pacific Payments PTE. LTD. |
| Pacifica Beauty LLC |
| Padepokan Seni Bagong Kussudiardja |
| Padyak PH |
| Pagoda Projects Ltd. |
| PAI Partners |
| Pai Skincare Ltd |
| Pak Alliance for Maths and Science Welfare Trust |
| Pakistan Alliance for Maths and Science |
| Paliburg Holdings Ltd |
| Palladium Group Holdings PTY LTD |
| Pan African University |
| Pan African University Life and Earth Sciences Institute (PAULESI) |
| Panasonic Connect |
| Panasonic Corporation |