1881 Incorporated

18 Karat, Inc.

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.

APEX Companies

Arcosa Aggregates


Atkinson Fire Safety, Inc.

Atlas Service Corporation

Austin Powder Company




Berwind Natural Resources

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

Caudill Seed & Warehouse Co.

Chain Connection Inc.

Chemstream, Inc.

Cintas Corporation

Civil & Environmental Consultants, Inc.

Cleveland Brothers Equipment Co., Inc.

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.

Environmental Energy Solutions LLC




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

Harsco Metals & Minerals

Hauhinco, LP / HBT

Heritage Coal and Natural Resources, LLC

Highland Industries

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

Junior Coal Contracting, Inc.

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.

M Resources

Marg Energy Inc.

Mayo Manufacturing Company, Inc.

McGrew Welding

Meinert/Mashek Communications


Modern Pump & Equipment, Inc.

Moody & Associates, Inc.

Murrysville Machinery Co., Inc.

Musser Engineering

Natural Resource Partners, LP

NBL Mining Company LLC

NACCO Natural Resources

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

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.

Rudd Equipment Co.

Shortway Service, Inc.

Simkol Corp.

Skyward Specialty Insurance

Solomon Corporation

Somerset International, Inc.

Steel Nation/Steel Building

Tassco Steel

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