2018 No. 4 - Naranjo Civil Constructors or Click Here for PDF
2018 No. 3 - Harrison Western Construction
2018 No. 2 - Henderson Pit
2018 No. 1 - Nicholson Building Company & Excavating

2017 No. 4 - 1888 Industrial Services
2017 No. 3 - CW Construction
2017 No. 2 - Zak Dirt
2017 No. 1 - Rocky Mountain Water Works

2016 No. 4 - NB Trenchless
2016 No. 3 - J-2 Contracting
2016 No. 2 - ACA Products
2016 No. 1 - Sam Sisneros Operations

2015 No. 4 - Blackeagle Energy Services
2015 No. 3 - L&M Enterprises, Inc.
2015 No. 2 - GTH Excavating
2015 No. 1 - Nelson Pipeline Constructors

2014 No. 4 - Mechanical Systems, Inc.
2014 No. 3 - Repair & Maintenance Contracts (RAMP)
2014 No. 2 - Miller-HFI, LLC
2014 No. 1 - American West Construction, LLC

2013 No. 4 - Lens's Excavating
2013 No. 3 - Summers Construction
2013 No. 2 - Wells Trucking
2013 No. 1 - Iron Woman

2012 No. 4 - Bestway Concrete & Aggregates
2012 No. 3 - A-1 Organics
2012 No. 2 - Oxford Recycling
2012 No. 1 - New Elk Coal Company

2011 No. 4 - 53 Corporation
2011 No. 3 - MJB Landscaping & Construction
2011 No. 2 - Iron & Metals, Inc.
2011 No. 1 - Total Site Utilities

2010 No. 4 - Aztec Construction
2010 No. 3 - Brannan Sand and Gravel
2010 No. 2 - Front Range Excavating
2010 No. 1 - Allied Recycled Aggregates

2009 No. 4 - 4 Quarters Excavation & Development
2009 No. 3 - Power Motive 50th Anniversary
2009 No. 2 - New Design Construction
2009 No. 1 - RAMP & KOMTRAX

2008 No. 4 - Worldwide Rental Services
2008 No. 3 - Anson Excavating & Pipe, Inc.
2008 No. 2 - Loadout Services, Inc.
2008 No. 1 - Superior Contractors, Inc.

2007 No. 4 - Oxford Recycling, Inc.
2007 No. 3 - Maybell Enterprises Inc.
2007 No. 2 - Highplains Excavating Inc.
2007 No. 1 - American Infrastructure, Inc

2006 No. 3 - All Recycling, Inc.
2006 No. 2 - Native Excavating, Inc.
2006 No. 1 - Lisbon Valley Mining Company