The firm PIENAAR & ERWEE was established on 1 April 1981 by Johann Erwee and Charl Pienaar in Sunnyside Pretoria. Since 1981 the firm has completed many successful projects ranging from major educational and training facilities, shopping centres, office blocks, housing developments, bulk supply and infrastructure projects. These projects addressed the needs of all levels of the community in the supply of electrical engineering services. The head office is situated in Pretoria with branch offices in Polokwane (Pietersburg) and Nelspruit.