| QETools | Michigan |
| Qeviar AI | |
| QeWebby | |
| QFix Software, LLC | Arizona |
| QFloors | Utah |
| QFX Software Corporation | Florida |
| QGenda, LLC | Georgia |
| Qi2Soft, LLC | |
| QIA | Texas |
| Qidni Labs, Inc. | New York |
| Qiigo, Inc. | |
| Qinotto | |
| QiSOFT | Georgia |
| QiSoftware | Maryland |
| QIT Consulting, Inc. | Connecticut |
| QIT Software | Texas |
| QL Communications, Inc. | Nevada |
| QL2 Software, LLC | Washington |
| Qlaris Bio, Inc. | Massachusetts |
| QLess, Inc. | California |
| QliqSOFT, Inc. | Texas |
| QLog Corporation | Ohio |
| Qloo, Inc. | New York |
| QLSF Biotherapeutics, Inc. | |
| Qlutch Marketing, Inc. | Arizona |
| QMC Telecom International | |
| QMedia | Nevada |
| QMedic | |
| QMENTA | Massachusetts |
| Qmetrics Technologies | New York |
| QMetry | |
| QMSC, LLC | |
| QMSI | California |
| Qnary | |
| Qnexis, Inc. | Virginia |
| QNova LifeSciences | |
| Qnovia, Inc. | Virginia |
| Qnovo | |
| QNTM | Pennsylvania |
| Qoddi | California |
| Qodea | |
| QOL Medical, LLC | Florida |
| Qolaba | Wyoming |
| Qolos, Inc. | |
| QOMPLX, Inc. | Virginia |
| Qonversion | |
| Qoolabs, Inc. | |
| Qooper | Illinois |
| Qoppa Software | Georgia |
| Qordata | New Jersey |