| Activant Capital | |
| Activate | New York |
| Activate Capital | |
| Activate Care | |
| Activate Digital Media | |
| Activate Global, Inc. | |
| Activate Learning | |
| Activated Communications | California |
| Activated Insights | |
| Activation Capital | Virginia |
| Active Capital | Texas |
| Active Collab, LLC | Virginia |
| Active Data Systems | South Dakota |
| Active Data, Inc. | Pennsylvania |
| Active Ennovations | California |
| Active Impact | Texas |
| Active Interest Media | |
| Active Internet Marketing | Michigan |
| Active IT Design, LLC | South Carolina |
| Active Layer Parametrics, Inc. | |
| Active Logic | |
| Active Marketing | Michigan |
| Active Motif | California |
| Active Network, LLC | California |
| Active Networking, Inc. | Ohio |
| Active Path | |
| Active Power, Inc. | Texas |
| Active Practice, LLC | Minnesota |
| Active Search Results | |
| Active Sensing, Inc. | Colorado |
| Active Storage, LLC | California |
| Active Theory | California |
| Active Web Group | New York |
| Active Web Hosting | Nevada |
| Active Wire Networks | Maryland |
| ActiveCampaign | Illinois |
| ActiveClass | |
| ActiveColor | California |
| Activecom | Nevada |
| ActiveData Digital Marketing | |
| ActiveDocs Ltd | Kansas |
| ActiveEdge | New Hampshire |
| ActiveFence | |
| ActiveG | Arizona |
| ActiveGraf, Inc. | North Carolina |
| ActiveLAMP | California |
| Activeloop | California |
| Actively AI | |
| Actively Learn | |
| ActiveMedia | California |