- Nova
- Nu-Dell Manufacturing Company, Inc
- Numi, LLC
- OccuNomix International, LLC
- Office Snax
- Officemate International Corp.
- OKI Data
- Olfa Corporation
- Olympus Corporation
- Oxford
- Oxford University Press
- PAC Worldwide Incorporated
- Panasonic
- Paramedic
- Pendaflex
- Pentel of America, Ltd
- PepsiCo, Inc
- Philips Electronics
- Pilot Corporation
- PLUS II SANITATION SUPPLIES
- PM Company, LLC
- Polar Plastic Ltd
- Poly
- Posture Perfect Solutions Ltd
- Prime Source