ABRATT was formed in 1998 and affiliated in 1999. There are 136 members including 133 Corporate members

CHKSTT was formed and affiliated in 1999.  The Society organises a conference and exhibition every two to three years. The most recent one was held on 31 Oct and 1 Nov 2024 in Hong Kong. It was a great success with over 150 delegates taken part in the international conference and exhibition.

Latin American Society for Trenchless Technology - LAMSTT. We are the Latin American Trade Organization, non-profit, of a technical nature, which promotes the development of Trenchless Technologies for the underground infrastructure of the Public Services of water, sanitation, electricity, internet, telephone and home gas.

Founded in the years 2009 - 2010, ICTIS is a multidisciplinary Institute of individuals and organizations with professional interests in environmental issues and services in the areas of Trenchless and Subterranean Infrastructure Technologies.

In June 2021 the association name changed, and the Latin American countries were linked in a society called Latin American Society for Trenchless Technology LAMSTT (NIT: 900302779-1).

The institute is a member of the ISTT - International Society for Trenchless Technology and shares the same basic interests of environmental and socials. LAMSTT’ members are automatically members of the ISTT.

CTSTT was formed in October 1992 and affiliated in 1993. There are now 69 members, including 15 Corporate Members. Guideliness have been published, in particular for Sewer Pipe Design. The Society hosted International NO-DIG 97 Taipei.

The Society currently has 97 members including 77 Corporate Members and 20 Individual Members.

The German Association for Trenchless Technology is the new voice for trenchless construction and maintenance of pipelines. Our goal is to strengthen these technologies in Germany and beyond in technical, economic, and political terms.

We are not only thinking about technical standards, but also about the major challenges of our time: climate protection, sustainability, and the efficient use of resources. Trenchless construction methods can make an important contribution here – we want to demonstrate this, communicate it and develop it further together.

Around 200 members from the former RSV and GSTT now form the foundation of the GATT (German Association for Trenchless Technology). The merger is the result of specific work assignments and resolutions passed by both members' meetings with the aim of combining expertise and working together to further develop the industry.

The association brings together a wide range of perspectives: contractors, manufacturers and suppliers, engineering firms, network operators, local authorities, and other service providers who are helping to shape trenchless construction and rehabilitation

IATT was formed in 1994 and affiliated in 1995. It has a fruitful relationship with Ministry of Economic and Development, Ministry of Infrastructures and Transports, Ministry of Environmental, and national Associations like ANCE (National Associations of civil contractors) and ANCI (National Association of Municipalities), UNI (National Regulation Body).
IATT is registered in the EU Transparency Register.

International NO-DIG was held in Genoa (1997), Rome (2007) and in Florence (2019).
The second edition of European No Dig Conference was held in 2023 (Milan) within the Italia No Dig Live

The International Society for Trenchless Technology (ISTT) was established in September 1986 as a United Kingdom private limited company with the object "to advance the science and practice of trenchless technology for the public benefit..." and "to promote education, training, study and research in the said science and practice for the public benefit, and to publish the useful results of the same." In the years that followed, ISTT affiliated with regional trenchless societies located throughout the world to advance these objectives globally.

IBSTT, serving Spain and Portugal, was formed and affiliated in 1998. There are 22 members, including 21 Corporate Members. In 2014, IbSTT held a successful International No-Dig in Madrid.

CSTT was formed in 1998 and became affiliated in 1998 & 2010. Currently, the Society has 138 members including 130 corporate members. A major national Conference and Exhibition has been held each year since 1996.

JSTT was established in April 1989, and as of December 2024, JSTT has approximately 170 members across Japan. With its goal to promote the effectiveness and advantages of trenchless technologies utilized in the inspection, testing, maintenance and management of underground facilities, JSTT is very active in hosting conferences, technical seminars, job site tours, as well as committee activities and publication of the journals.

The NSTT (Netherlands Society for Trenchless Technology) covers over 200 companies, (government) agencies and people involved with trenchless techniques in The Netherlands and Belgium. Knowledge-driven and willing to make social impact they all stand together for enhancing trenchless technology.

The NSTT combines the trenchless techniques with four of the biggest challenges of today: sustainability, energy-transition, less inconvenience and the urgent housing shortage. NSTT provides knowledge, facts and figures to meet these challenges in a trenchless way. Of course all this is related to the special geological and spatial characteristics of the Delta-lands we're living in.

The NSTT unites our members: the questions and challenges of our principals and governments, the scientific knowledge from our institutes and the practical experience from our engineers, constructors and manufacturers. We believe in one-way spreading of knowledge by lectures, webinars, publications et cetera but also (and perhaps more important) we believe in exchanging experiences and contacts in live-meetings and events with our members. Because Trenchless means Together. 

NSTT is founded in 1988. It has hosted the ISTT No-Dig in 1993 and 2005, both Events happening in the port of Rotterdam.

A few activities of our society

• Each two years NSTT organizes the NSTT No-Dig Event. The next NSTT No-Dig Event will take place October 8 and 9, 2025.
• Every year NSTT awards two prizes: the NSTT No-Dig Award (by jury, with focus on technical development and social impact) and the NSTT Publieksprijs (by voting, with focus on public outreach).
• NSTT provides the digital Platform Veilig Sleufloos (Platform Safe Trenchless), for exchanging safety-incidents, developing safety instruments and so starting the learning curve for even safer techniques
• and of course our meetings, seminars, website, publications and presentations, newsletters et cetera 

For more information:  www.nstt.nl 

V. Chairman: Mr Benedykt Lipczynski International contact: Anna Parka ania.parka@interia.pl PFTT was formed in 1998 and affiliated in 1999. There are 14 members.

SgSTT was formed in the last part of 2009 and affiliated in 2010.The Society currently has 27 members including 11 Corporate Members, 11 Sponsor Members, 3 Individual Members, 1 Associate Member, and 1 Non-Executive Member from PUB.

TSITT was formed and affiliated in 2010. TSITT holds annual No-Dig Turkey Conference and Exhibition since 2011. TSITT holds annual Water Loss Forum and Exhibition since 2014. TSITT hosted 33rd International No-Dig Istanbul Conference and Exhibition on 28-30 September 2015 with these figures: 94 companies from 21 countries joined the exhibition. 910 visitors from 50 countries visited the booths. 51 papers were presented during 14 sessions of the conference. 149 delegates from 31 countries followed the presentations. TSITT is an active member of ISTT having close relationships with the trenchless markets in Europe, Asia and Middle East countries.

Association RSTT originally formed in May 2002 and now has 8 members including 7 Corporate members.

AATT was formed in 1991 and affiliated in 1992. There are 56 members, including 14 Corporate Members. The Association has published a handbook on trenchless techniques available in Austria and national events have been held throughout the country.

The Australasian Society for Trenchless Technology (ASTT) is the peak body for trenchless technology in Australasia, providing advocacy, leadership, support and educational opportunities for organisations and individuals involved in trenchless technology.

The ASTT was formed in 1991 as the Australian Society, expanding in 1994 to serve also New Zealand. Corporate and Individual membership levels are available.

For over 30 years, the ASTT has provided members with access to the latest technological advancements, technical information, and educational opportunities through Trenchless Australasia Magazine, the No Dig Down Under conference, as well as providing access to industry tools, technical forums and webinars.

The ASTT also includes a number of Special Interest Groups. These technical divisions represent a specific trenchless sector. The ASTT encourages members to consider joining a Special Interest Group.

The objectives of ASTT are to:

• Advance the science and practice of trenchless technology for the public benefit
• Provide a forum in Australia and New Zealand for interchange of multi disciplinary knowledge and skills in the field of trenchless technology
• Arrange or sponsor meetings, conferences and symposia on subjects consistent with the objectives of the Society
• Encourage the interchange of specialists in trenchless technology within Australia and New Zealand
• Liaise and establish affiliations with related organisations, both within Australia, New Zealand and overseas
• Inform and advise the public and Government on matters concerned with trenchless technology
• Encourage education, training and research

Successful National Conferences & Exhibitions (No Dig Down Under) are held every two years typically and have been held in Melbourne, Sydney, Perth and Brisbane.

The ASTT has hosted three (3) ISTT International NO-DIG's in Perth (2000),  Brisbane ( 2006) and Sydney (2013). It is scheduled to host the 2026 ISTT International NO-DIG in Auckland, New Zealand, in September 2026.

FSTT was formed in 1990. There are now 129 members, including 90 Corporate Members. An annual General Assembly reviews past achievements and plots the course for the future. In April 2008, the Comite francais pour les travaux sans tranchee has decided to take on a new name - France Sans Tranchee Technologies - to fit better with a French meaning that would still preserve the international acronym.

FSTT holds regular workshops and organizes training courses for engineers, technicians, civil servants and students in conjunction with renown educational bodies like ESTP and OIEau. FSTT is partner to "RESEAUX VRD", a leading magazine for road works professionals, to publish a monthly review "Reseaux Sans Tranchee" (trenchless networks) distributed among members and widely around.

A successful International No-Dig 92 was held in Paris. Every two years, the national exhibition "Ville Sans Tranchee" (trenchless city) gathers everybody that counts in the sector, near Paris.

NoDig Infra was formed in 2016 as a Danish Society. All 194 Danish members are former members of the SSTT (Scandinavian Society) which was founded back in 1989. NoDig Infra has a close cooperation with DANVA (Danish Water and Wastewater Association) National conferences, training and education in close cooperation with the technical universities and study trips abroad are among our activities. Two successful INTERNATIONAL NO-DIG in 1994 and in 2002 was held in Copenhagen.

UKSTT was formed and affiliated in 1993. There are 159 members, including 100 Corporate Members. A register of research projects in trenchless technology in the UK was established as an early initiative. The Society holds regular workshops, demonstrations and exhibitions under the title NO-DIG Live and hosted International NO-DIG 93 in Birmingham.

Founded in 1990, the North American Society for Trenchless Technology (NASTT) represents more than 2,300 members throughout the United States, Canada and Mexico who promote better and more responsible ways to manage underground infrastructure.

NASTT’s mission is to advance trenchless technology and to promote its benefits for the public and the natural environment by increasing awareness and knowledge through technical information dissemination, research and development, education and training. NASTT strives to provide a representative voice for all sectors of the trenchless technology industry. For more than 35 years, the all-volunteer members of NASTT have presented non-commercial information seminars and training about these “green alternative” engineering methods to North American communities.

NASTT understands the complex challenges and unique needs of the trenchless industry.

• NASTT Trenchless Knowledge Hub with more than 3500 technical papers, books, videos and guides.
• Master-class education: NASTT No-Dig Show, No-Dig North, webinars and chapter conferences.
• Impactful volunteer roles that support and transform the industry and your career.
• Member Directories filled with contractors, municipalities, utilities, manufacturers, suppliers and consultants.
• Expert-produced case studies, articles and Advanced Good Practices courses.

NAST membership equips and empowers you and your organization to thrive. 
Be more...with NASTT.
nastt.org/membership

The Southern African Society for Trenchless Technology (SASTT) was established in 1992 in Pretoria, South Africa, with the mission to promote the use of trenchless technology (TT) as a sustainable and efficient approach to underground infrastructure development and maintenance. This innovative technology minimizes surface disruption and environmental impact while providing cost-effective solutions for the installation and rehabilitation of underground services. SASTT operates as an ethical, neutral platform to advance the adoption of TT by offering technical resources, training, advocacy, and support for professionals, asset owners, and municipalities. The society also aligns itself with global developments through its affiliation with the International Society for Trenchless Technology (ISTT), reflecting its commitment to global best practices and innovation.

In 2011, SASTT demonstrated its leadership in the field by hosting a master class on trenchless technology in collaboration with No-Dig South Africa. A second similar No-Dig South Africa and Masterclass was held in 2014. This was followed by hosting the prestigious international No-Dig Conference in Cape Town in 2018, cementing SASTT's position as the regional hub for trenchless innovation. The Society draws its members from diverse sectors, including municipalities, consultants, contractors, and suppliers, fostering a collaborative environment. As the gateway to Africa, SASTT is committed to expanding the adoption of trenchless technology across Southern Africa, driving sustainable infrastructure solutions throughout the region.

The Malaysia Association for Trenchless Technologies (MATT) has been established to have a body truly representative of all stakeholders from the sector throughout the country, to promote trenchless technologies and methods, represent the interests of its members, provide an important forum for exchange of knowledge and expertise nationally and internationally, and offer a platform for professional training and educational programs. MATT's membership encompasses representation from government ministries and departments, utilities and infrastructure assets managers, private contractors and consultancies and other professional organisations. MATT maintains an open door policy to all interested parties to become a member of the Association and participate in its events and activities,

This Society is a fake Society for website testing purposes.