| Oz | Delaware |
| Ozark Apps Development, LLC | |
| Ozark Christian College | Missouri |
| Ozark Integrated Circuits | Arkansas |
| Ozarka College | Arkansas |
| Ozdachs Consulting | California |
| Ozette | Washington |
| ozEworks, Inc. | New York |
| Ozmen Ventures | Nevada |
| Ozobot & Evollve, Inc. | California |
| Ozone | California |
| Ozone Ranch | Idaho |
| Ozonetel Communications | California |
| OZSoft Consulting Corporation | California |
| Oztera | California |
| OZZI | |
| P & P Services, Inc. | Arkansas |
| P Hardy Technologies, Inc. | New York |
| P&C Insurance Systems, Inc. | New York |
| P&E Microcomputer Systems, Inc. | Massachusetts |
| P'unk Avenue | Pennsylvania |
| P-Fleet | |
| P-Link Computer Corporation | California |
| P-tec Corporation | Colorado |
| P. Cube Digital, LLC | |
| P. Schoenfeld Asset Management, L.P. | |
| P.A. Electronics Corporation | Wisconsin |
| P.A.G. Capital Partners | Illinois |
| P.C.E. Computing, LLC | Washington |
| P.J. Plauger | Massachusetts |
| P.O.G., LLC | |
| P.R., Inc. | Texas |
| P0 Security, Inc. | |
| P1 Creative | |
| p11creative | California |
| P2 Automation, LLC | Connecticut |
| P2Bi Holdings, LLC | |
| P2D Bioscience | Ohio |
| P2H, Inc. | California |
| P3i Systems, LLC | Tennessee |
| P3Software, Inc. | Massachusetts |
| P6R, Inc. | California |
| P97 Networks, LLC | Texas |
| PA Venture Capital | Pennsylvania |
| PA.NET | Pennsylvania |
| PAAY | New York |
| PABS LABS, Inc. | |
| PAC Data | California |
| PacBio | California |
| Paccomm Technologies, Inc. | California |