| Active Ice Digital | Western Cape |
| ActiveDNS | Western Cape |
| Acuity Consultants | Western Cape |
| Acute Solutions | Western Cape |
| Ad Dynamo International (Pty) Ltd | Western Cape |
| ADAM EduTech | Gauteng |
| Adapt IT | KwaZulu-Natal |
| Addendum | |
| ADE Labelling and Barcoding | Gauteng |
| Adept ICT | Western Cape |
| ADSL Telecom | Western Cape |
| Adumo | Gauteng |
| Advance Mechantile Solutions | Gauteng |
| Advanced Customs Solutions | Gauteng |
| Advanced Digital Devices (Pty) Ltd | Gauteng |
| Advanced Online Systems | Gauteng |
| AdvanceNet | Gauteng |
| Advantage Microsystems | North West |
| Advertising Solutions Web Design | Gauteng |
| Advicement Investment Services (Pty) Ltd | |
| Adworth | |
| AdzOnline | |
| Aerea Connect | |
| AFDA | |
| Afferent Software | Western Cape |
| Afour Technical Communication | Gauteng |
| Africa 2.0 | Gauteng |
| Africa Blockchain Alliance | Gauteng |
| Africa Blue (Pty) Ltd | KwaZulu-Natal |
| Africa Data Centres | Gauteng |
| Africa PC | KwaZulu-Natal |
| Africa Tech Week | Western Cape |
| Africa Telecoms | Gauteng |
| Africa Trust Academy | Western Cape |
| Africa Women Innovation & Entrepreneurship Forum | Western Cape |
| African Centre for a Green Economy | Western Cape |
| African Institute for Mathematical Sciences | Western Cape |
| African Society for Bioinformatics and Computational Biology | Western Cape |
| African Tech Round-Up | Gauteng |
| AfricaOneSpace.org | Gauteng |
| AfricArena | |
| Afridesign.com | Gauteng |
| Afrideveloper | Gauteng |
| Afrigen Biologics | |
| AfriGIS | Gauteng |
| Afrihost SP (Pty) Ltd | Gauteng |
| Afrinest Online Solutions | Gauteng |
| Afrolabs | Western Cape |
| Afrovation | Gauteng |
| Agent Orange Design | Gauteng |