Kantex Industries Inc. / Interstate Highway Construction Inc. / Quality Linings & Painting Inc. / Lillard Clark Construction Company Inc. / Alstom / SEMA Construction Inc. / Layne Heavy Civil Inc. / Lawrence Construction Company / Colorado Asphalt Services Inc. / WLH Construction Company / Hydro Construction 74 Waterford Corporation / Restruction Corporation / Archer Western Construction LLC / McDade-Woodcock Inc. / Allied Corrosion Industries Inc. / Moltz Construction Inc. / Sundt Construction 29 Gracon Corporation / Filanc 66 SiteWise Corporation / BT Construction Inc. / R.E. Monks Construction Company LLC / Velocity Constructors Inc. / Tezak Heavy Equipment 31 Hamon Contractors Inc. / ICS Healy-Ruff 75 Westec Engineering Inc. / Saunders Construction 24 FCI Constructors Inc. / Restricted Capital Projects 1 ACA Products Inc. / Constructors 14 Brannan Construction 55 MWH Constructors Inc. / MISCOwater 9 ASI Constructors Inc. / Colorado Inc. / Garney Construction 68 Sun Valley Electric Inc. / Kiewit Infrastructure Co. / Hill 58 Premier Specialty Contractors 18 Coblaco Services Inc. / Fischer Construction Inc. / Precision Industrial Contractors Inc. / Controls Inc. / Harrison Western Construction Corporation / Aggregate Industries 43 Levi Contractors Inc. / Aslan Construction Inc. / RN Civil Construction 23 Eckstine Electric Co / Lowell Construction Inc. / Golden Triangle Construction Inc. / Construction Company Inc. / DCS 16 Canyon Systems Inc. / Intermountain Electric 76 Western Summit Constructors Inc. / Amwell 48 Meurer Research Inc. / Iron Woman Utilities 38 JCOR Mechanical Inc. / /