The Infrastructure Specialist Group (ISG) was formed in 2013 after two leaders in the manufacture of infrastructure and mining products merged. Technicrete and Rocla are prominent brands well known in the industry. They were previously owned by Murray & Roberts which sold them as a result of the group focusing their growth aspirations in engineering, mining and construction. The two companies were acquired by a consortium consisting of private equity firm Capitalworks, RMB Ventures, Pan African Group and senior executives within the companies, which led to the formation of the company ISG.