| 4401 | АНИТ | 1 |
| 4402 | Anivia | 1 |
| 4403 | ANKOR.TOP | 1 |
| 4404 | Anny'Jess | 1 |
| 4405 | Antida software | 1 |
| 4406 | ANTONOV GROUP | 1 |
| 4407 | Anykey-IT | 1 |
| 4408 | АО Вымпел | 1 |
| 4409 | Апельсин | 1 |
| 4410 | Apella | 1 |
| 4411 | Apex | 1 |
| 4412 | Apex Interactive | 1 |
| 4413 | Апфлай | 1 |
| 4414 | АПИК АЙТИ | 1 |
| 4415 | АП-ИМ | 1 |
| 4416 | apiqa | 1 |
| 4417 | Аплана | 1 |
| 4418 | ApostrofSoft | 1 |
| 4419 | AppDate / Boson | 1 |
| 4420 | AppDepo | 1 |
| 4421 | App Development Shop | 1 |
| 4422 | Appdiamond | 1 |
| 4423 | Applied Technologies | 1 |
| 4424 | App Mobile | 1 |
| 4425 | Apps4business | 1 |
| 4426 | APPSO | 1 |
| 4427 | AppStar | 1 |
| 4428 | AppsTrain | 1 |
| 4429 | AppWorks | 1 |
| 4430 | APRICODE, веб-студия, Создание сайтов | 1 |
| 4431 | AP-Web | 1 |
| 4432 | Arbiteg | 1 |
| 4433 | Арбор Прайм | 1 |
| 4434 | ARBUZ digital | 1 |
| 4435 | Architector Agency | 1 |
| 4436 | Ardens.pro | 1 |
| 4437 | Are Group | 1 |
| 4438 | Aremi | 1 |
| 4439 | Argentum Agency | 1 |
| 4440 | Архи-веб | 1 |
| 4441 | Арис.Веб | 1 |
| 4442 | ARK Group (ARK CONNECT, INBRIEF CRM) | 1 |
| 4443 | arkid digital | 1 |
| 4444 | Arkvision | 1 |
| 4445 | ARLIX | 1 |
| 4446 | ARLIX | 1 |
| 4447 | Armil Digital | 1 |
| 4448 | ARMS Digital | 1 |
| 4449 | ARORA | 1 |
| 4450 | Around | 1 |
