| gstt.de | GSTT - German Society for Trenchless Technology e.V. |
| euca.com | Engineering & Utility Contractors Association (EUCA) |
| astm.org | ASTM Committee F-17 on Plastic Piping Systems |
| ukstt.org.uk | United Kingdom Society for Trenchless Technology [UKSTT] |
| dcca.org | Directional Crossing Contractors Association [DCCA] |
| concrete-pipe.org | American Concrete Pipe Association |
| pipejacking.org | Pipe Jacking Association |
| gctaonline.org | Gulf Coast Trenchless Association [GCTA] |
| ieee.org | IEEE Working Group 11-28: Guided Boring Installation of Cable and Conduit |
| dca-online.org | Distribution Contractors Association |
United States , Minnesota , Mankato