| Akro Capital (Pty) Ltd | |
| ALFTECH | Western Cape |
| All Programming | Gauteng |
| AllWorldIT | Western Cape |
| AllyCAD | Western Cape |
| AlogaNet | Eastern Cape |
| AlphaBit | |
| Alphabyte Web Creations | Gauteng |
| Alphawave Holdings | Western Cape |
| AlphaWeb CC | Gauteng |
| Alternative Media | Gauteng |
| AltonSA | Western Cape |
| Altron | Gauteng |
| Altron Systems Integration | |
| Alviva Holdings Ltd | Gauteng |
| Always Active Technologies | KwaZulu-Natal |
| Amakozi Technologies | Western Cape |
| Aman Corporation | Gauteng |
| AMNet CC | Gauteng |
| Amobia | Western Cape |
| Amorphous | Gauteng |
| Anansi | |
| ANB Investments (Pty) Ltd | |
| Ancor Design | |
| AnD Communications | KwaZulu-Natal |
| Andtech Barcode Systems CC | Gauteng |
| Ankerdata | Western Cape |
| Anomalous | |
| Apex Media | Gauteng |
| Apolix | Western Cape |
| Application Framworks | Western Cape |
| Applied Database Solutions | Western Cape |
| Applxbridge (Pty) Ltd | Western Cape |
| APPSolve | Gauteng |
| Aptronics | Gauteng |
| ARCAD | KwaZulu-Natal |
| Arctica Design | |
| Arcus Capital | |
| Argeo Technical Services | Gauteng |
| Artificial Studio | Western Cape |
| Artis Turba (Pty) Ltd | |
| Ascent Technology | Gauteng |
| Ascentium Technologies (Pty) Ltd | |
| ASF Computing Services | Gauteng |
| ASIC Design Services | Gauteng |
| Aspen Pharmacare Holdings Ltd | |
| Aspiration Software | Gauteng |
| Aspire Solutions | Western Cape |
| Assemble | Gauteng |
| Astidian Systems | Gauteng |