RK-Teknik was founded in 1982 by Ragnar Karlsson and initially focused on manufacturing stud screws and castings, which are primary balcony details. In 1991, the business had developed and RK-Teknik manufactured and sold individual details as well as complete balconies. The number of full-time employees had increased to eight.
In 2011, the business was moved from Leckersbo Gård to premises in central Gusum. From a barn to a balcony factory of about 12,000 square meters, which has since been RK-Teknik’s home. The company continues its growth and is continued by Ragnar’s sons Johan Karlsson, CEO and Kristian Karlsson, construction manager. Today, RT-Teknik has 57 employees and is active throughout Sweden.