A. E. Reken Welding & Fabricating

Advance Mining Service

A K Coal Resources, Inc.

Allegheny Mineral Corp.

Alliance Coal, LLC

Alliance Consulting, Inc.

AMD Industries, Inc.

Amerikohl Mining, Inc.

Arcosa Aggregates


Atkinson Fire Safety, Inc.

Atlas Service Corporation

Austin Powder Company



Berwind Natural Resources

Black Cat Coal LLC

B.M. Kramer & Company Inc.

Bradigan’s Incorporated

Brookman Iron & Metals

Buchanan Ingersoll & Rooney PC

Buckley Associates Inc.

Budd Scale Services & Sales

Burns Drilling & Excavating

Burrell Mining Products, Inc.

CB Mining

Camber Corporation

Cambria Co. Assoc. for the Blind & Handicapped


Chain Connection Inc.

Chemstream, Inc.

Cintas Corporation

Civil & Environmental Consultants, Inc.

Cleveland Brothers Equipment Co., Inc.

CME Engineering LP

Coal Hill Mining Company

Colona Transfer LP


Con-Stone, Inc.

Corsa Coal

Covers-All Canvas Products

Crown Battery Manufacturing Co.

CSC Insurance Options

CSX Transportation

Cumberland Surety, Inc.

DSA Sales Associates, LLC

E. M. Brown, Inc.

Earthtech, Inc.

1881 Incorporated

18 Karat, Inc.



Environmental Energy Solutions LLC


Environmental Protection Inc.


Evergreen Insurance LLC

Export Fuel Company, Inc.

Farnham & Pfile

Fike Associates, Inc.

Fisher Mining Company

Fisher Phillips LLC


F.N.B. Wealth Management

Frontier Railroad Services LLC

Global Mine Service Inc.

GMS Mine Repair & Maintenance, Inc.

G-S Hydraulics, Inc.

H & H Electrical Service Center, Inc.

Handex Consulting & Remediation

Hareza Technical Sales, Inc

Harsco Metals & Minerals

Hauhinco, LP

Heritage Coal and Natural Resources, LLC

Highland Machinery Company

Hollowood Heating, Inc.

Hoy’s Construction Company, Inc.

Industrial Battery of Pittsburgh

Iron Senergy

Irwin Car & Equipment

Jack R. Chamberlin PLS

JADCO Manufacturing Company, Inc.

JAS Mine Consulting

Jennmar Corporation

John Kosky Contracting, Inc.

John T Boyd Company

K & K Mine Products Inc.

Kaceys Material Handling

KaJon Materials Inc.

Ketchem Construction Company

LCT Energy, LP

Lee Supply Co., Inc.

LEMAC Mine Service, Inc.

Leman Machine Company

Liberty Mining Consultants, Inc.

Lincoln Contracting & Equipment Co., Inc

Lingis Manufacturing and Machine Co., Inc.

Logi-Tec, Inc.

Marg Energy Inc.

Mayo Manufacturing Company, Inc.

McGrew Welding

Meinert/Mashek Communications


Moden Pump & Equipment, Inc.

Moody & Associates, Inc.

Murrysville Machinery Co., Inc.

Musser Engineering


Natural Resource Partners, LP

Navigator Environmental & Technical Services, Inc.

NBL Mining Company LLC

Norfolk Southern Corp.

North American Coal Royalty Co.

Ocenco Incorporated

Original Fuels, Inc.

Outdoor Solutions, Inc.

Patriot Safety Services

Peacock Keller

Penn Environmental & Remediation, Inc.

Pennsylvania Mining Professionals

Philip Reese Coal Company, Inc.

PM Supply, Inc

PrepTech, Inc.

PRS3 Development

Promark Industries, Inc.

Quaker Sales Corporation

Quikrete Companies

R. C. Kadyk Corporation

R. G. Johnson Company, Inc.

R. K. Stein & Company

Reschini Group, The

RFI Resources, LLC


Riverlift Industries & Riverlift Trucking

Robindale Energy Services, Inc.

Rockwood Casualty Insurance

Rosebud Mining Company

Rosscapes, Inc.

R.T.I. Machining & Fabrication LLC

Rudd Equipment Co.

Shortway Service, Inc.

Simkel Corp.

Skyward Specialty Insurance

Solomon Corporation

Somerset International, Inc.

Steel Nation/Steel Building

Tassco Steel

Tensar International

3M Corporation

Three Rivers Marine & Rail Terminals LP

Unionvale Coal Company

United Central Industrial Supply

United States Steel

W.K. Merriman, Inc.

WallacePancher Group

Wampum Hardware Co.

Waroquier Coal Company, Inc.

West River Conveyors & Machinery Co.

West View Cunningham Co., Inc

Wood Mackenzie

Xcoal Energy & Resources