2010 No. 1 - Allied Recycled Aggregates
2009 No. 4 - 4 Quarters Excavation & Development
2009 No. 3 - Power Motive 50th Anniversary
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
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