Check out http://jozihub.org/, they do location, events and more. http://jozihub.org/events.php. If you’re starting up in the tech-preneur space, get networking at some of the events Jozi Hub has to offer.
You may even be eligible to join their incubator: http://jozihub.org/membership.php.
Check it out, who knows where your next idea will take you.