Download the list of Solar Energy Companies in Gauteng. Smartscrapers provides an accurate directory and the latest data on the number of Solar Energy Companies in Gauteng There are 1845 Solar Energy Companies in Gauteng as of October 15, 2025; which is an 5.49% increase from 2023. Of these locations, 1353 Solar Energy Companies which is 73.33% of all Solar Energy Companies in Gauteng are single-owner operations, while the remaining 492 which is 26.67% are part of larger brands. The top three cities with the most Solar Energy Companies are Johannesburg with 1003 Solar Energy Companies, Pretoria with 374 Solar Energy Companies, Carletonville with 10 Solar Energy Companies. Average age of Solar Energy Companies in Gauteng is 2 years and 5 months.