- ABL Service Inc
- Advanced Centers For Podiatry
- Alaska Placer Development Inc
- Alaska Placer Development Inc
- All Weather Earthworks
- Applied Chemical Magnesias
- Belcher & Co Escavating
- Bingham Reclamation Inc
- Black Energy Inc
- Boone Mountain Svc Inc
- Brazier Mine Construction
- Buckeye Gulf Coast Pipe & Line
- Chaffin's Mining & Lube
- Coal Ridge Mining LLC
- Cowin & Co Inc
- CR Briggs Corp
- Dan Adams
- Degerstrom Ventures
- Ed Lapp & Son Mining
- F & M Power Svc
- F W Aggregates Inc
- F W Aggregates Inc
- Frontier Kemper Constructors
- Frontier-Kemper Constructors
- Geo-Biotics Inc
- Goldfort Mining Corp
- Great Northern Insurance
- Green Technology Group Inc
- Hesperus Geoscience
- J S Red Path Corp
- J S Redpath Corp
- Jackson's Mining Equipment Rpr
- Jim Hamm Splice & Repair Svc
- Jim Huber Corp
- KGL Assoc Inc
- Kipar Inc
- Kuhbacher Pressure Washing
- L & L Mine Svc
- Ledcor Industries Inc
- Meissner Services
- Mid Continent Coal & Coke Co
- Mining Remedial Recovery Co
- Mungas Co Inc
- N A Degerstrom
- Nicholson Construction
- Norstar Mining
- Norstar Mining
- North American Coal
- North Florida Drilling Svc
- Nycon Resources Inc
- P & P Construction Of Ky Inc
- Parton Brothers Contracting
- PC Illinois Synthetic Fuels
- Phelps Dodge Corp
- Precision Mine Repair Inc
- Precision Mine Repair Inc
- Raisebor
- Ranchers Construction
- Rema Tip Top
- Resource Capital Funds
- Richard Fox Pressure Cleaning
- Rocky Mountain Mine Svc
- Sanroc
- Savage Industries Inc
- Savage Industries Inc
- Sidney Resources Corp
- SKV
- Slybranch Energy
- Small Mine Development
- Small Mine Development-Shop
- Solution Mining Research Inst
- Southern Cross Engineering Inc
- Southland Resources Inc
- Southwest Aggregates
- Southwest Aggregates
- Springline Mining & Explrtn
- Strata Mining Inc
- Stu Blattner Inc
- Texas Brine
- U S Micro Powders Inc
- Vance Construction
- W F Jackson Construction Co
- Wagner Petrographic
- Washington Group Intl
- Western Cable
- Western Continental Inc
- Western Mine Svc Inc
- Western Mine Svc Inc
- Widman Contractors Inc
- Windfall Venture
- Wommack Trucking