| Adverr Media | |
| Advertise Robot | |
| Advertising Age | New York |
| Advertising Checking Bureau, Inc. | |
| Advertising Excellence | |
| Advertising Hands | |
| Advertising Hub | |
| Advertising Online Agency | |
| Adverum Biotechnologies, Inc. | California |
| Advestment | |
| Advice Interactive Group | Texas |
| Advice Interactive Group, LLC | Texas |
| AdviceSoft, LLC | New York |
| Adviise, Inc. | Texas |
| AdvikSoft, Inc. | California |
| Advin | California |
| AdviNOW, Inc. | Arizona |
| Advintro, LLC | Texas |
| Advion BioSciences | New York |
| Advirna, LLC | Massachusetts |
| Adviserly, Inc. | Arizona |
| Advision Development TX, LLC | |
| Advisor Consultant Network, Inc. | Ohio |
| AdvisorConnect, Inc. | |
| AdvisorEngine, Inc. | New York |
| Advisors Assistant | California |
| AdvisorStream | |
| Advisory Board | |
| Advita Ortho | |
| Adviters | |
| ADVIZOR Solutions, Inc. | Illinois |
| AdvizorPro | |
| AdvoCare Medical | Michigan |
| Advocat AI | Washington |
| Advocate | Georgia |
| Advocate SEO | |
| Advomatic, LLC | New York |
| Advontemedia, Inc. | California |
| Advosol.com | Texas |
| Advotech Company, Inc. | Arizona |
| AdvSoft, LLC | Pennsylvania |
| Advyon | |
| Adwanted Group | |
| AdwareAway.com | Washington |
| Adweek | New York |
| Adwest Pay-Per-Click | California |
| Adwisely | California |
| ADX Labs, Inc. | |
| AdYapper | Illinois |
| Adyton | |