| Zendoc | Washington |
| Zendrive | California |
| Zenefits | California |
| Zenerate | California |
| Zenergy Technologies | |
| Zenergy Works | California |
| Zenetex | Virginia |
| Zenfair Solutions | |
| ZenFires Digital Marketing | |
| Zenflow, Inc. | California |
| Zenfolio, Inc. | California |
| Zenful Creations, Inc. | Georgia |
| Zengenuity | Michigan |
| Zengobi, Inc. | North Carolina |
| Zeni, Inc. | California |
| ZeniMax | Maryland |
| ZeniMax Online Studios | Maryland |
| ZenIRC | California |
| Zenith Electronics, LLC | Illinois |
| Zenith Information Systems, Inc. | California |
| Zenkoders | Delaware |
| Zenlayer, Inc. | California |
| Zenlist, Inc. | California |
| Zenlytic | New York |
| Zenman | Colorado |
| Zenniz, Inc. | |
| Zeno Group | |
| Zeno Payments | Washington |
| Zenobase, LLC | |
| Zenobia Fragments | |
| Zenobia Therapeutics | |
| Zenocraft Services | |
| Zenogram Digital Marketing Agency | Alabama |
| Zenon Biotech | Massachusetts |
| ZenOne | Texas |
| Zenoss, Inc. | Maryland |
| Zenoti | Washington |
| Zenphoto | Massachusetts |
| Zenpire | California |
| Zenploy, Inc. | Arizona |
| ZenPoint Solutions | Virginia |
| ZenPrivata, Inc. | Delaware |
| Zenput | California |
| ZenQ | Texas |
| ZenQMS, LLC | Pennsylvania |
| Zenresearch, Inc. | California |
| Zenscape Marketing | |
| Zensoft | California |
| Zensoft IT Solutions | |
| Zensoft, Inc. | Wisconsin |