Kohler Co. Liebherr-International Deutschland GmbH Emme Esse Vi SRL dba Mapei S.p.A. Omya AG Altec, Incorporated Alfred Karcher SE and Co., KG Carhartt, Inc. Chetu, Inc. The Boler Co. dba Hendrickson Holdings, LLC Pinnacle Infotech, Inc. Geotab, Inc. Quikrete Holdings, Inc. Engineering Contracting Co., LLC (ECC) Klein Tools, Inc. Contractors Register, Inc. dba The Blue Book Network Poly-America, L.P. Martin Engineering Co. LATICRETE International, Inc. GreatAmerica Financial Services Corp. Heavy Construction Systems Specialists, Inc. (HCSS)