| Atstake | 1 | 1 |
| Att | 10 | 27 |
| Attachmate | 15 | 29 |
| Attachmatewrq | 1 | 1 |
| Attachmax | 1 | 9 |
| Attendance Management System Project | 1 | 3 |
| Attenzione | 1 | 1 |
| Atthat.com | 1 | 1 |
| Attic Project | 1 | 1 |
| Attila-php.net | 1 | 1 |
| Atto | 2 | 4 |
| Attosoft | 1 | 1 |
| Attribute Wizard Project | 1 | 1 |
| Atutor | 4 | 54 |
| Atvise | 2 | 6 |
| Atwellpub | 1 | 1 |
| Atx | 2 | 2 |
| Aubio | 1 | 9 |
| Aucko | 1 | 1 |
| Auction Website Script Project | 1 | 1 |
| Auctiontrac | 1 | 1 |
| Audacious Media Player Team | 1 | 10 |
| Audacityteam | 1 | 6 |
| Audi | 2 | 2 |
| Audienceview | 1 | 1 |
| Audins Audiens | 1 | 3 |
| Audio Cd Tools | 1 | 1 |
| Audio Edit Magic | 1 | 1 |
| Audio File Library Project | 1 | 5 |
| Audio File Project | 1 | 1 |
| Audioarticledirectory | 1 | 1 |
| Audiocodes | 24 | 54 |
| Audiocoding | 3 | 46 |
| Audiofile | 1 | 15 |
| Audiogalaxy | 1 | 1 |
| Audiolink | 1 | 1 |
| Audiosharescript | 1 | 2 |
| Audiotool | 1 | 1 |
| Audiovalley | 1 | 1 |
| Auditwizard | 1 | 1 |
| Audrasjb | 1 | 1 |
| Auerswald | 31 | 53 |
| Augeas | 1 | 5 |
| August | 7 | 7 |
| Augustine Project | 1 | 1 |
| Auieo | 1 | 10 |
| Aultware | 1 | 2 |
| Auna | 2 | 2 |
| Auo | 2 | 4 |
| Auracms | 3 | 24 |
| Aurea | 1 | 1 |
| Aurelia | 1 | 1 |
| Aurigma | 1 | 3 |
| Auromeera | 1 | 2 |
| Aurora | 1 | 1 |
| Auroradao | 2 | 3 |
| Ausimods | 1 | 2 |
| Austin Contract Computing | 1 | 1 |
| Austin Group | 1 | 2 |
| Autartica | 2 | 2 |
| Autentificator | 1 | 1 |
| Auth0 | 21 | 43 |
| Auth2db | 1 | 1 |
| Auth2dbauth2db | 1 | 1 |
| Authconfig | 1 | 1 |
| Authconfig Project | 1 | 1 |
| Authelia | 1 | 2 |
| Authenex | 1 | 1 |
| Authentikat-jwt Project | 1 | 1 |
| Authentium | 1 | 11 |
| Authguard Project | 1 | 1 |
| Authlib | 1 | 3 |
| Author Bio Box | 1 | 1 |
| Author Bio Box Project | 1 | 1 |
| Authoria | 1 | 1 |
| Authoring Html | 1 | 1 |
| Authorsontourlive | 1 | 1 |
| Authzed | 1 | 7 |
| Auto Ftp | 1 | 2 |
| Auto Spare Parts Management Project | 1 | 1 |
| Auto-exchanger | 1 | 1 |
| Auto-maskin | 14 | 36 |
| Autocomplete Widgets Project | 1 | 1 |
| Autodesk | 61 | 844 |
| Autohotkey | 1 | 1 |
| Autoindex | 1 | 2 |
| Autojump | 1 | 1 |
| Autojump Project | 1 | 1 |
| Autokey Project | 1 | 1 |
| Autolab | 2 | 2 |
| Autolinks | 1 | 2 |
| Automated Solutions | 1 | 1 |
| Automatededitor.com | 1 | 1 |
| Automatedlogic | 3 | 9 |
| Automatedsolutions | 1 | 1 |
| Automationdirect | 53 | 145 |
| Automatorwp | 1 | 2 |
| Automattic | 13 | 60 |
| Automne-cms | 1 | 1 |
| Automobility Distribution Inc. | 1 | 1 |
