| Redshift Cyber Security | Western Cape |
| Rees Dynamic | Western Cape |
| Reflex Solutions | Gauteng |
| Refresh Creative Media | Western Cape |
| Regenesys (Pty) Ltd | |
| Regenesys Business School (Pty) Ltd | |
| Remote Outpost (Pty) Ltd | Gauteng |
| Rentware | Western Cape |
| Republic of South Africa - Department of Science and Technology | Gauteng |
| researchICTafrica.net | Western Cape |
| Restrive | Gauteng |
| Retail Plus Consultancy | Gauteng |
| Rethink Education | Western Cape |
| Retro Rabbit | Gauteng |
| RetroMod Technologies | KwaZulu-Natal |
| Reunert | Gauteng |
| Reutech Communications | KwaZulu-Natal |
| Rhodes University - Computer Science | |
| Rhodes University - Department of Information Systems | Eastern Cape |
| Rhodes University - Department of Mathematics | Eastern Cape |
| Riebens Computers | Western Cape |
| Riecktron Electronics | Gauteng |
| Riva Technology | Gauteng |
| Riversands I-Hub | Gauteng |
| RJ45 Networking Solutions | Western Cape |
| RLabs | Western Cape |
| Robertson Valley Technologies | Western Cape |
| Rocketsoft | |
| Rocksolid Systems | Western Cape |
| Rogerwilco | Western Cape |
| RogueWeb (Pty) Ltd | |
| RoseStreet Systems | Gauteng |
| Rox Computers | Gauteng |
| RSAWEB | Western Cape |
| RsR IT Solutions | Gauteng |
| Ruby Sky | Gauteng |
| RuggedMobile | Gauteng |
| Running Computers | Gauteng |
| Rural Brands | |
| Rylurx IT | Western Cape |
| S2 Web Solutions | Western Cape |
| SA Domain Internet Services | Gauteng |
| SA Domains | Gauteng |
| SA Game Dev | Gauteng |
| SA Innovation Summit | Western Cape |
| SA SME Fund | |
| SA Web Designer | Western Cape |
| SA Webhosts | |
| SA Webs | KwaZulu-Natal |
| Sa Wireless | Gauteng |