Симинвест ООД started in 1997 and has been operating in the field of road construction - supply and installation of steel guardrail, according to EN 1317 and contributes to the development of a modern infrastructure, comply with all requirements of the European standards and to ensure road safety. Siminvest Ltd. is a pioneer in the application of the method of piling steel pins through visokoudarna ramming machine installation of steel railings. In consortium with three other Bulgarian companies have successfully passed crash - test according to EN 1317 - CSP 97.