| 1 | | A.Espersen | Catching and Processing-Processing | Russia | H23 |
| 2 | | ABB | Shipbuilding and Ship repair-Ship Systems,Shipbuilding and Ship repair-Ship Equipment and Components | Russia | C18 |
| 3 | | ABRAMCZYK | Catching and Processing-Processing,Product Distribution-Retail | Poland | H7 |
| 4 | | Adler, Tribal Trout Farm | Aquaculture-Farming | Russia | D36 |
| 5 | | Adomat | Shipbuilding and Ship repair-Ship Repair,Shipbuilding and Ship repair-Engineering Bureau | Russia | F13 |
| 6 | | Adria Winch | Shipbuilding and Ship repair-Ship Equipment and Components,Special Equipment-Fishing Gear,Other-Scientific Research Institutions | Croatia | E9 |
| 7 | | Advantum | Services-Logistics | Russia | B5 |
| 8 | | AF Process Technology | Shipbuilding and Ship repair-Ship Equipment and Components | Russia | D20 |
| 9 | | Agenstvo Selkhozkorma | Aquaculture-Feeds and Additives | Russia | C20 |
| 10 | | Agro-Matik, Scientific and Production Association | Aquaculture-Feeds and Additives | Russia | C21 |
| 11 | | AgroBaltProekt | Shipbuilding and Ship repair-Ship Equipment and Components,Special Equipment-Processing Equipment,Special Equipment-Aquaculture Equipment | Russia | K21 |
| 12 | | AGROPROMHOLOD | Special Equipment-Processing Equipment,Special Equipment-Refrigeration and Freezing | Russia | E17 |
| 13 |  | AINA MARE | Catching and Processing-Processing | Kazakhstan | K17 |
| 14 | | Aircool | Special Equipment-Refrigeration and Freezing | Russia | D10 |
| 15 | | AKIYAMA MACHINERY CO. | Special Equipment-Processing Equipment,Special Equipment-Refrigeration and Freezing | Japan | D18 |
| 16 | | Akwa-Extrim | Shipbuilding and Ship repair-Shipyard | Russia | F13 |
| 17 | | Alaid | Catching and Processing-Catching | Russia | F14 |
| 18 | | Aldoga | Aquaculture-Farming | Russia | B22 |
| 19 | | Algotec | Aquaculture-Feeds and Additives,Aquaculture-Veterinary Medicine | Russia | B20 |
| 20 | | ALMAR | Special Equipment-Processing Equipment | Russia | E25 |
