| Firma nimi |
|---|
| Antegenes OÜ |
| Ants Liini Niinemäe talu |
| Ants Muld Kartulitehnika |
| Anvol OÜ |
| APChemicals OÜ |
| Apptree OÜ |
| Apricot OÜ |
| Aqua Global OÜ |
| Aqua-Work Europe OÜ |
| Aquaphor International OÜ |
| AR Agentuuri AS |
| Aramapharm OÜ |
| Aran PM OÜ |
| ArcticBad OÜ |
| Ardera Publisher OÜ |