| Atium AB | |
| ATL by Pär | |
| Atlar | |
| Atlas Antibodies | |
| Atley Solutions AB | |
| Atmoz Consulting AB | |
| Atomize AB | |
| Atos Medical | |
| Atpunkt | |
| Atrecbil Göteborg AB | |
| Atrium Ljungberg | |
| Atrogi | |
| Attentec AB | |
| Attgeno AB | |
| Attini | |
| Audiodo AB | |
| Aura Cloud AB | |
| Aurora Innovation AB | |
| Aurora Solutions | |
| AutoEnergy | |
| Avabrava | Skåne |
| Avalanche Studios | Skåne |
| Avantec Consulting AB | Västra Götaland |
| Avarn Security | |
| Avassa Systems AB | |
| Aventure AB | |
| Aveny Production | |
| Avia Pharma AB | |
| Avico Solutions AB | |
| Avinode | |
| Avinode Group | |
| Avio AB | |
| Avionero AB | |
| Avonova | |
| Avsalt AB | |
| AVT Industriteknik AB | |
| Avtre AB | |
| Avy-Timpl | |
| Awardit AB | |
| Awave | |
| Aweria AB | Västra Götaland |
| AxByte Internet Services AB | |
| Axelent Engineering | |
| Axess Lab | |
| Axfood AB | |
| Axians SE | Stockholm |
| Axiell Group | Skåne |
| Axis Communications AB | Skåne |
| Axolot Data | Västra Götaland |
| Axtech AB | Västra Götaland |