3M CO.
A.O. SMITH WATER TECHNOLOGIES
ABB LTD.
ABENGOA
ACE WATER TREATMENT CO. LTD.
ADVANCED WATER SOFTENERS LTD.
AGILENT TECHNOLOGIES Inc.
ALFA LAVAL CO. AB
AMIAD WATER SYSTEMS LTD.
ANDALYZE Inc.
AQUA METROLOGY SYSTEMS
AQUA-AEROBIC SYSTEMS Inc.
AQUALEAK DETECTION LTD.
AQUASANA Inc.
AQUATECH
ATLAS SCIENTIFIC
ATMOS INTERNATIONAL LTD.
AXINE WATER TECHNOLOGIES Inc.
B METERS
BADGER METERS
BEST WATER TECHNOLOGY (BWT)
BIO-MICROBICS Inc.
BIOSENSOR SRL
BLUE PLANET/ECOLOGICAL LABORATORIES
BUREAU VERITAS GROUP
CALGON CARBON CORP.
CALIFORNIA LABORATORY SERVICES
CANATURE HEALTH TECHNOLOGY GROUP CO.
CHELSEA TECHNOLOGIES GROUP LTD.
CHEMETRICS Inc.
CHENGDU TECHCENT ENVIRONMENT CO. LTD.
CHUNGHO NAIS CO. LTD.
CLEARWATER TECH Inc.
COWAY CO. LTD.
DANAHER CORP.
DATAMATIC
DIEHL METERING GROUP
DORLEN PRODUCTS Inc.
ELECTRO-CHEMICAL DEVICES
EMERSON ELECTRIC CO.
ENVIROTECH ALARMS LTD.
EUROFINS SCIENTIFIC Inc.
EUTECH INSTRUMENTS PVT. LTD.
EVOQUA WATER TECHNOLOGIES
FLOLOGIC SYSTEMS PVT. LTD.
FONTUS WATER PVT. LTD.
FREDSENSE TECHNOLOGIES CORP.
FUJI ELECTRIC
GEOTECH ENVIRONMENTAL EQUIPMENT Inc.
GINER LABS
GRAVER TECHNOLOGIES LLC
GRUNBECK WASSERAUFBEREITUNG
GUTERMANN AG
H2O INNOVATION
HALMA PLC
HANNA INSTRUMENTS Inc.
HANS SASSERATH GMBH & CO. KG
HARVEY WATER SOFTENERS LTD.
HILL LABORATORIES LTD.
HONEYWELL INTERNATIONAL
HORIBA
HORIBA LTD.
HUBBARD-HALL
HYDRO INTERNATIONAL
HYFLUX LTD
IDEXX LABORATORIES Inc.
IN-SITU Inc.
INGE GMBH (BASF)
INNOVATIVE SENSOR TECHNOLOGY AG
INTERTEK GROUP PLC
ION EXCHANGE INDIA
ISKRAEMECO
ITRON
J.A.M. LTD.
KAMSTRUP
KENMORE
KENNET WATER LTD.
KINETICO Inc.
KOCH MEMBRANE SYSTEMS Inc.
KURITA WATER INDUSTRIES LTD.
LEAKTRONICS
LENNTECH BV
LIBELIUM
LUMENSE Inc.
MARLO Inc.
MASTER METER Inc.
MECO Inc.
METTLER-TOLEDO INTERNATIONAL Inc.
MITSUBISHI ELECTRIC POWER PRODUCTS Inc.
MONARCH WATER LTD.
MUELLER WATER PRODUCTS Inc.
MULTISENSOR SYSTEMS LTD.
MYRON L CO.
NANOAFFIX SCIENCE LLC
NEC CORP.
NEPTUNE TECHNOLOGY GROUP Inc.
NORWALK WASTEWATER EQUIPMENT COMPANY (NORWECO)
NOVA BIOLOGICALS
OAKTON INSTRUMENTS
OPTIENZ SENSORS
OPTIQUA TECHNOLOGIES PVT. LTD.
ORGANO CORP.
OSAKI ELECTRIC CO. LTD.
PARKER BOILER CO.
PENTAIR PLC
PERMA-PIPE
SCALEMASTER LTD.
SEAPOINT SENSORS Inc.
SGS SA
SHIMADZU CORP.
SUEZ
TELEDYNE ANALYTICAL INSTRUMENTS
THERMO FISHER SCIENTIFIC Inc.
TINTOMETER GMBH
TTK
VAN LONDON CORP.
Veolia
WATER GUARD Inc.
WATERS CORP.
WHIRLPOOL CORP.
XYLEM Inc.
YOKOGAWA INDIA LTD.
ZENNER