| Zeus Home Control | California |
| ZEUS Scientific, Inc. | |
| Zevity Tech | Colorado |
| Zevra Therapeutics | Florida |
| ZF Micro Solutions, Inc. | California |
| zFlo Motion | Maine |
| Zfone | California |
| ZFrame, Inc. | Massachusetts |
| Zgage, Inc. | New Jersey |
| ZGC Capital Corporation | California |
| ZGH Design, Inc. | Michigan |
| Zgraph, Inc. | Florida |
| Zhittya Genesis Medicine, Inc. | Nevada |
| ZHMicro, LLC | Texas |
| Zhurosoft | Washington |
| Zia Credit Union | |
| Zianet | New Mexico |
| Zibtek | Utah |
| ZielBio | Virginia |
| ZielCreative | California |
| Ziff Davis, Inc. | New York |
| Ziff Media Group | New York |
| Ziffity Solutions, LLC | Texas |
| ZIG Capital | New York |
| Ziggle Tech, Inc. | New York |
| zigihub.com | Georgia |
| Zignal | California |
| Zigron | Virginia |
| Ziiware, Inc. | Delaware |
| Zilker Marketing | |
| Zilker Partners | Texas |
| Zilko Web Solutions | Texas |
| Zilla Security, Inc. | Massachusetts |
| ZillaDog.com, LLC | New York |
| Zilliant | Texas |
| Zilliant, Inc. | |
| ZillionDesigns.com | New Jersey |
| Zilliz | California |
| Zillow, Inc. | |
| Zilog | California |
| Zima Media | Illinois |
| ZimbleCode | |
| Zimbra | California |
| Zimmdot, LLC | Georgia |
| Zimmer Biomet | Indiana |
| Zimmerman Advertising | Florida |
| Zimmerman Consulting | Minnesota |
| Zimperium | Texas |
| ZimVie, Inc. | |
| Zinc Collective | California |