ABB
ADAS Consulting
Alphasense
ATMOSi Ltd
AWG (Anglian Water)
Bournemouth & West Hants Water
Grontmij Ltd
Chelsea Instruments Ltd
Churchill Controls Ltd
Cranfield University
dstl
Lange
Dublin City University
Envitech


Links to SWIG member sites
The Gas Analysis & Sensing Group
Hydro-Logic
Hymetrics Ltd
IETG
In-Situ Inc
University of Luton
MD Instruments Ltd
MWHGlobal.com
Northumbrian Water
OTT-Hydrometry
Palintest
Panametrics Ltd
Partech
Planet Ocean Ltd
Primayer Ltd
Process Instruments (UK) Ltd 
Prominent
Radcom Technologies
Radio-Tech Ltd

  
ROMIL
Royce Instruments
RSHydro
SDI (Europe) 
Sensornet.co.uk
Shawcity Ltd.
Siemens
Servitech International Ltd.
Severn Trent Services
STL Coventry 
Skalar 
The Environment Agency 
The Environmental Industries Commission
The Open University
United Utilities (North West Water)
University of Herfordshire
University of Liverpool
University of Manchester
Institute of Bio-Sensing Technology
Valeport
Wallace & Tiernan
WE-Instrumentation
WRc
Yorkshire Water
YSI Hydrodata
YSI (UK) Ltd