| Peregrine | |
| Peregrine Communications, Inc. | Colorado |
| Peregrine Hydrogen, Inc. | |
| Peregrine Photon, Inc. | |
| Peregrine Semiconductor Corporation | California |
| Peregrine Technologies | California |
| Perel Media, Inc. | |
| Perella Weinberg Partners, L.P. | |
| Perennial | Colorado |
| Perennial Systems, Inc. | Texas |
| Perera Group, Inc. | South Carolina |
| Perez Computing Services | Washington |
| Perfect Afternoon | |
| Perfect Computer Solutions, Inc. | New York |
| Perfect Day, Inc. | |
| Perfect Image Printing | |
| Perfect Parts Corporation | California |
| Perfect Point Marketing | |
| Perfect Search Media | |
| Perfect World Co., Ltd | California |
| Perfecta Business Service, Inc. | Massachusetts |
| PerfectDomain | Nevada |
| perfectforms | California |
| Perfectial | Massachusetts |
| Perfecting Software, LLC | Oklahoma |
| Perfection PC, Inc. | Washington |
| Perfection Products, Inc. | Indiana |
| Perfection Services, Inc. | Pennsylvania |
| Perfection Software, Inc. | Florida |
| Perfectly Good Systems, LLC | New Hampshire |
| Perfectna, Inc. | |
| Perfecto | Minnesota |
| PerfectQuote | Texas |
| Perfectus Technology, Inc. | California |
| Perfexion, Inc. | |
| Perficient, Inc. | Missouri |
| Perficient, Inc. | |
| Perfinity Biosciences | Indiana |
| Perfomatix | Florida |
| Perforce Software | California |
| Performa Technologies | |
| PerformaCode, Inc. | |
| Performance Associates, Inc. | Colorado |
| Performance Computer Group | Florida |
| Performance Data Resources | Arizona |
| Performance Designed Products, LLC | California |
| Performance Digital Marketing of Boise | Idaho |
| Performance Enhancements, Inc. | Colorado |
| Performance First Digital | |
| Performance Local | |