Varder Hulsbosch wins slice of BTS global account 22 Aug 200522 Aug 2005 WhatsappPrintPDFXLinked-inFacebook More sharing options Varder Hulsbosch has added another client to its roster: BTS. BTS are little known in SA at present, but are a fast-growing global business founded in 1985 in Sweden and have become the world leaders in business simulations.