Agrilectric Research

Mar Cor Purification

Asahi Kasei Biotech

Mettler-Toledo

AXYS Analytical

Natrix Separations

Calgon Carbon Corporation

NewAge/AdvantaPure

Crane Environmental

Novasep

Culligan

Pall Corporation

Enpro

Parker Hannifin

Environmental Operating Solutions, Inc.

Repligen

GE Healthcare

Sartorius-Stedim Biotech

GE Water & Process Technologies

Seldom Technologies

GVS Filtration

Sepro Membranes

Hydranautics

Siemens Water Technologies

Keystone Filter Group

SmartFlow Technologies

Koch Membrane Systems

Synagro

Liquidity Corporation

Veolia Water Technologies

M2 Renewables

W. L. Gore

Mann+Hummell

Xylem