- CRAD - CRAD Cevre Risk Analiz Denetim Ltd.Sti - Istanbul, Turkey
- DHI - DHI - Hoersholm, Denmark
- NCEC - National Chemical Emergency Centre - Harwell, Great Britain
- SCS - SCS Training & Consultancy BV - Hoofddorp, Netherlands
- UMCO - UMCO Umwelt Consult GmbH - Hamburg, Germany
