3M
ALFA LAVAL
DONALDSON CO. INC.
DUPONT
HYDRANAUTICS (A NITTO GROUP CO.)
KOVALUS SEPARATION SOLUTIONS
MANN+HUMMEL
NX FILTRATION BV
PARKER HANNIFIN CORP.
PROMINENT
SIMPORE
SYNDER FILTRATION INC.
TERAPORE TECHNOLOGIES
TORAY INDUSTRIES INC.
VEOLIA
XYLEM