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

Alliance Coal, LLC
B.D.I. Screen
Belt Tech Conveyer Specialists
Centrifugal & Mechanical Industries
Clinch River Corporation
Conn-Weld Industries Inc.
DRA Taggart
Eriez Manufacturing Company
Farnham and Pfile Construction, Inc.
FGX SepTech,LLC
FLSmidth
Global Coal
Hausner Hard Chrome, Inc.
JADCO Manufacturing
Lincoln Contracting and Equipment
Mechanical & Ceramic Solutions, Inc
Metso Minerals Industries, Inc.
MMD Mineral Sizing (America) Inc.
Murray Energy Corporation
Norris Screen
Norwest Corporation
Omni Materials, Inc.
Peterson Filters Corporation
Phoenix Process Equipment
Polydeck Screen Corporation
Precision Samplers
PrepTech Inc.
Quality Magnetite
Rock and Coal Construction
S and S Urethane and Ceramics
Schurco Slurry
SGS North America, Inc.
SNF Mining
Somerset Coal International
Tema Isenmann, Inc.
The C. I. Thornburg Co.
The Daniels Company
Tra-Det Laboratories
Weir Minerals North America
Welco Expediting Ltd.