| Agile Computers Ltd | Buckinghamshire |
| Agile Cyber Solutions | |
| Agile Digital Agency | Greater London |
| Agile Domain Ltd | |
| Agile IT Ltd | Buckinghamshire |
| Agile Knowledge Management Ltd | |
| Agile Web Development | |
| Agile Yorkshire | West Yorkshire |
| agileKRC Ltd | Somerset |
| Agilio Software | |
| Agilisys Ltd | |
| Agilitas Ltd | |
| Agility in Mind Ltd | Greater London |
| Agility Life Sciences | |
| Agility Software | |
| Agincourt Design Ltd | Lincolnshire |
| Agio Ratings | |
| Agora Digital Markets Ltd | |
| AGR Automation Ltd | |
| Agrismart | |
| Agrivi | Greater London |
| Agrolabs Ltd | |
| Agronomics | |
| Agroxy | |
| AGT Computer Services Ltd | |
| AGT Web | |
| Agumdoo Design | Stirling |
| AGW Electronics Ltd | Derbyshire |
| AGWebData | Suffolk |
| Agylia Group Ltd | Gloucestershire |
| AH Partnership Ltd | |
| AHB Information Technology Solutions | |
| Ahead4 Ltd | Essex |
| Ahoy Branding Ltd | Greater Manchester |
| Ahren Innovation Capital, LLP | |
| AI Build Ltd | |
| AI Business | |
| AI Culture | |
| AI Expo | |
| AI Factory | |
| AI Hardware & Edge AI Summit | |
| AI Hardware & Edge AI Summit Europe | |
| AI Magazine | |
| Ai Networks | Greater London |
| AI Software Developers | |
| Ai Solutions Ltd | Bedfordshire |
| AI Studio | |
| Ai Web Solutions Ltd | |
| AI2B Ltd | |
| AIApply Ltd | |