Memberships
| DVGW | German Technical and Scientific Association for Gas and Water (DVGW) |
| DWA | German Association for Water, Wastewater and Waste |
| FIGAWA | Federal Association of Gas and Water Companies |
| Güteschutz Kanalbau | |
| IRO | Institute for pipeline construction at the University of Applied Sciences, Oldenburg |
| Association of the North-West German Textile and Clothing Industry | |
| DCA | The Drilling Contractors Association (DCA-Europe) An European organisation for quality and education in HDD |