| Zorba | Missouri |
| Zorbis | Texas |
| ZorroSign, Inc. | Arizona |
| Zortam Corporation | California |
| Zortec International | Tennessee |
| Zorus, Inc. | Florida |
| ZOT Corporation | |
| Zotec Partners | Indiana |
| Zotech Designs | |
| Zotero | Virginia |
| Zoticus | |
| Zova Marketing | |
| Zoviz | Delaware |
| Zowie, Inc. | New York |
| Zoxima Solutions, LLC | |
| Zozimus | Massachusetts |
| ZP Group | Virginia |
| zPaper | Georgia |
| ZPE Systems, Inc. | California |
| Zpidev | California |
| Zrix, Inc. | |
| ZRON Website Design, Inc. | Illinois |
| ZrysMedia | California |
| ZS | Illinois |
| Zscaler, Inc. | California |
| ZSFab, Inc. | Massachusetts |
| ZSG | Ohio |
| ZSL, Inc. | New Jersey |
| ZSource.com | California |
| zSpace, Inc. | California |
| Zstarr Interactive Media | New York |
| ZSuite Technologies, Inc. | Massachusetts |
| ZT Systems | New Jersey |
| zTeam | |
| ZTech | West Virginia |
| ZTGD | Ohio |
| Ztractore | California |
| ZTree | Florida |
| Zuar, Inc. | Texas |
| Zube | Texas |
| Zuberance, Inc. | California |
| Zubie, Inc. | South Carolina |
| Zucker and Zucker | Florida |
| ZuCom Services | New York |
| Zugara, Inc. | |
| Zugara, Inc. | California |
| Zugg Software | Colorado |
| Zuggo Custom Apps | |
| Zuiton, Inc. | Florida |
| Zukor Interactive | Nevada |