- Adventus Europe, Austria
- AMEC, USA
- BioSoil B.V., NL
- Cornelsen Umwelttechnologie GmbH, Germany
- Deltares, NL
- Eijkelkamp Agrisearch Equipment, NL
- Electric Resistance Heating
- European Remediation Technologies / E.R.T., Belgium
- FRAC RITE Environmental Ltd., Canada
- FUGRO CONSULT GmbH, Germany
- GEOSTREAM, Italy / Carus Europe, Spain
- GEOVARIANCES, France
- Regenesis UK Ltd., UK
- RNAS, Inc., USA
- TAUW, NL
- UFZ, Germany
- US EPA, USA