| WebSpaceBar | |
| Webstyles Internet Solutions | Gauteng |
| Webtech Industries | Gauteng |
| Webtonic | Gauteng |
| Webvudu | Gauteng |
| Webworx Web Design | Western Cape |
| WeFix | Western Cape |
| WeFuse | |
| Welcome Tomorrow | |
| Welcomp Computers | Mpumalanga |
| West Coast College | |
| Westech | Gauteng |
| Westech Web Design | Western Cape |
| Western TVET College | |
| Westplex | Gauteng |
| WestRoadSouth | Gauteng |
| Wi-Fi & Network Solutions | Free State |
| Wibakor | Free State |
| Wiggle Digital Ltd | |
| Wild Heart | KwaZulu-Natal |
| Willcom | Gauteng |
| Wilson Consulting | |
| WinFreight | Gauteng |
| WinQS | Gauteng |
| Winstel Technologies | Gauteng |
| Wireless Business Systems (Pty) Ltd | Gauteng |
| Wispernet | Western Cape |
| Wits University | |
| Witz Communication | Western Cape |
| Woema Graphic and Web Design | Gauteng |
| Wopl Pty Ltd | |
| Word of Mouth | |
| Wordstriker | |
| Workonline | Western Cape |
| WorkPool | Western Cape |
| WoW Interactive | Gauteng |
| Woww | |
| WriteNow Agency (Pty) Ltd | |
| WSIOMS | |
| WumDrop, Inc. | Western Cape |
| Xecutive Cyber Security Solutions | Gauteng |
| Xenex Computers | Gauteng |
| Xenon Consulting CC | |
| XL Africa | Western Cape |
| XL Solutions | Gauteng |
| Xpedia IT Group | Gauteng |
| Xperien | Gauteng |
| Xpitech (Pty) Ltd | Gauteng |
| Xploited Media | Western Cape |
| Xstream Flow (Pty) Ltd | Gauteng |