JJ Harnessing Pty Ltd, founded in 2013 is a leading Electronics Turnkey Solutions Provider, manufacturing to an IPC Class 3 level of production. Based in Cape Town, South Africa, our comprehensive range of services includes Surface Mount Assembly, Through-Hole Assembly, Harness Assembly, Proto-Typing. Programming & Testing Whether you’re looking for high-volume production or need a single prototype, we have the flexibility to accommodate both.