Position：HOME > ISTT AFFILIATED SOCIETIES
| Affiliated Society | ISTT Affiliated Societies Sities |
| ARATT | Argentine Association for Trenchless Technology |
| ASTT | Australasian Society for Trenchless Technology |
| AATT | Austrian Association for Trenchless Technology |
| ABRATT | Brazil Association for Trenchless Technology |
| CSSTT | China Shanghai Society for Trenchless Technology |
| CTSTT | China Taipei Society for Trenchless Technology |
| CZSTT | Czech Society for Trenchless Technology |
| FISTT | Finnish Society for Trenchless Technology |
| FSTT | French Society for Trenchless Technology |
| GSTT | German Society for Trenchless Technology |
| IBSTT | Iberian Society for Trenchless Technology |
| INDSTT | Indian Society for Trenchless Technology |
| ISTT | International Society for Trenchless Technology |
| IATT | Italian Association of Trenchless Technology |
| JSTT | Japan Society for Trenchless Technology |
| NSTT | Netherlands Society for Trenchless Technology |
| NASTT | North American Society for Trenchless Technology |
| PFTT | Polish Foundation for Trenchless Technology |
| RSTT | Russian Society for Trenchless Technology |
| SSTT | Scandinavian Society for Trenchless Technology |
| SVKSTT | Slovak Society for Trenchless Technology |
| SASTT | Southern African Society for Trenchless Technology |
| CHSTT | Swiss Society for Trenchless Technology |
| USTT | Ukraine Society for Trenchless Technology |
| UKSTT | United Kingdom Society for Trenchless Technology |