SaaS Database/People/Holger WeissHWHolger WeissFounder & CEO at The M.A.R.K.13™ - GroupFounderCEOCompanyThe M.A.R.K.13™ - GroupStuttgart, Germany · Founded 1999Revenue$3.2MTeam size29Company profile →Also at The M.A.R.K.13™ - GroupDominique Schuchmann · Founder & CEO