| Zen Ecosystems | |
| Zen Lunatics | Arizona |
| Zen Planner, LLC | Colorado |
| Zen Software Solutions, Inc. | Missouri |
| Zen Techworks, Inc. | Washington |
| ZenaComp, Inc. | Michigan |
| Zenapply | Utah |
| Zenas BioPharma | Massachusetts |
| ZenBio, Inc. | North Carolina |
| ZenBusiness, Inc. | |
| Zencastr | |
| Zencore Biologics | Maryland |
| Zencos | North Carolina |
| Zend | California |
| Zendata | |
| Zendesk | California |
| Zendoc | Washington |
| Zendrive | California |
| Zenefits | California |
| Zenerate | California |
| Zenergy Works | California |
| Zenetex | Virginia |
| 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 | |
| Zenlayer, Inc. | California |
| ZenLedger | Pennsylvania |
| Zenlist, Inc. | California |
| Zenlytic | New York |
| Zenman | Colorado |
| Zeno Payments | Washington |
| Zenobase, LLC | |
| Zenobia Therapeutics | California |
| Zenobia Therapeutics, Inc. | California |
| Zenogram Digital Marketing Agency | Alabama |
| Zenon Biotech | Massachusetts |
| Zenoss, Inc. | Maryland |
| Zenoti | Washington |
| Zenphoto | Massachusetts |
| Zenpire | California |
| Zenploy, Inc. | Arizona |