This is a list of the Coal Prep Society of America's active corporate members:

Alliance Coal, LLC
Allmineral LLC
Alpha Control Fabrication and Manufacturing
APC Analytics
Birtley
Buchanan Pump Service and Supply
Certified Labratories
Chemstream Inc.
Conn-Weld Industries Inc.
Core & Main
Cumi America, Inc.
Daniels Company
Deister Concentrator, LLC
Derrick Corporation
DRA Taggart
Early Construction Inc.
Eastern Electric, LLC
Eastern Screens and Drives
Elgin Equipment Group
Eriez Manufacturing Company
Farnham and Pfile Construction, Inc.
FGX SepTech,LLC
Flexco
FLSmidth
Global Coal And Mining Private Limited
Hardface Technologies by Postle
JABO Supply Corporation
JADCO Manufacturing
Johnson Screens - Aqseptence Group
Kanawha Scales and Systems, Inc.
KM Specialty Pumps and systems, inc.
Lee Supply Co.
Metso Minerals Industries, Inc.
MMD Mineral Sizing (America) Inc.
Modern Welding Co. of KY Inc.
Murray Energy Corporation
Nalco Company
Nix
Norwest Corporation
Omni Materials, Inc.
Partition Enterprises
Performance Industries, Inc.
Peters Equipment Company, LLC
Peterson Filters Corporation
Phoenix Process Equipment
Polydeck Screen Corporation
Precision Samplers
PrepTech Inc.
Quality Magnetite
S and S Urethane and Ceramics
SABIA, Inc.
Schurco Slurry
SEI Engineers, Inc.
Service Pump and Supply
SGS North America, Inc.
Sherwin Williams Protective Coatings
Steinert US
Swormsco, Inc.
System Controls, Inc.
Tassco
Tema Isenmann, Inc.
Thomas Broadbent & Sons Ltd
Tra-Det Laboratories
United Central Industrial Supply
Vitaulic
Weir Minerals North America
Welco Expediting Ltd.
Wesco
Wright Concrete and Construction