NASSCO
NASSCO is an industry resource for specification guidelines, industry practices, inspector training, and new technology know-how.
http://www.nassco.org/

United Kingdom Society for Trenchless Technology [UKSTT]
UK affiliate of ISTT
http://www.ukstt.org.uk/

Water Environment Federation [WEF]
Trade association focused upon preserving and enhancing the global water environment. The Collection Systems Committee is very active in trenchless technology. Most trenchless technology product firms exhibit at the WEF Tradeshow and Exhibition [WEFTEC].
http://www.wef.org/

National Utility Contractors Association (NUCA)
NUCA has a trenchless technology committee. Site contains membership, convention and legislative information; online store and magazine, member questions and answers bulletin board, weather search features.
http://www.nuca.com/

American Public Works Association [APWA]
The American Public Works Association [APWA] serves its members by promoting professional excellence and public awareness through education, advocacy and the exchange of knowledge.
http://www.apwa.net/

American Society of Civil Engineers [ASCE]
The Pipeline Infrastructure Committee [PINS] of the American Society of Civil Engineers regularly considers issues pertaining to trenchless technology.
http://www.asce.org/

National Rural Water Association [NRWA]
The NRWA is America's largest utility membership association serving over 19,000 water and wastewater utilities.
http://www.nrwa.org/

National Clay pipe Institute [NCPI]
National Clay Pipe Institute is a not for profit trade association comprised of manufacturers of vitrified clay pipe.
http://www.ncpi.org/

Great Lakes & St. Lawrence chapter of NASTT
The North American Society for Trenchless Technology (NASTT) is an association of consulting engineers, educators, contractors, governmental agencies and regulators involved with the application of trenchless technologies. Our Chapter is an affiliate of NASTT and helps to represent the Canadian perspective in the North American trenchless technology marketplace.
http://www.nasttglsl.on.ca/

Federation of Canadian Municipalities
The Federation of Canadian Municipalities is the national voice of municipal governments, dedicated to improving the quality of life in all communities by promoting strong, effective, and accountable government.
http://www.fcm.ca/

International Society for Trenchless Technology [ISTT]
ISTT was established in 1986 to advance the science and practice of Trenchless Technology for the public benefit, and to promote education, training, study and research in that science and practice.
http://www.istt.com/

International Tunnelling Association [ITA - AITES]
Founded in 1974, ITA has 47 Member Nations and 250 Affiliate Members. The aims of ITA are to encourage planning of the subsurface and to promote advances in the preparatory investigations for tunnels and in the design, construction and maintenance of tunnels by bringing together information thereon and by studying questions related thereto.
http://www.ita-aites.org/

Underground Contractors Association of Illinois
UCA is a nonprofit trade association of contractors and suppliers in the sewer, water, utility, and underground industry in the Chicago area. It is active in market development, information, education, labor, and promotion of safety.
http://www.uca.org/

ASTM Committee F-17 on Plastic Piping Systems
Sub-committee F-17.67 is focused upon the development of trenchless technology standards.
http://www.astm.org/cgi-bin/SoftCart.exe/COMMIT/COMMITTEE/F17.htm?L+mystore+zrkn6860+947885479

CeoCor
Committee on the study of pipe corrosion and protection.
http://www.ceocor.lu/

Associated Research Centers for the Underground Urban Space [ACUUS]
The ACUUS is an international non-governmental association actively promoting partnerships amongst all actors in the field of planning, management, research and uses of urban underground space.
http://www.acuus.qc.ca/

Engineering & Utility Contractors Association (EUCA)
EUCA is dedicated to serving union-affiliated construction companies.
http://www.euca.com/

Distribution Contractors Association
http://www.dca-online.org/

Pipe Jacking Association
The Pipe Jacking Association has been established for 25 years and represents the leading contractors, pipe suppliers, and machine manufacturers in the United Kingdom pipe jacking and microtunnelling industry.
http://www.pipejacking.org/

Association of Metropolitan Water Agencies [AMWA]
Association of Metropolitan Water Agencies [AMWA] - The site features items of interest in the fields of drinking water regulation and legislation, the Safe Drinking Water Act, Source Water Protection, Watershed Assessments, Drinking Water Treatment, and Competitiveness issues for Public Utilities.
http://www.amwa.net/

Chinese Society for Trenchless Technology (CSTT)
ISTT Affiliate in China.
http://www.chkstt.org/

Gulf Coast Trenchless Association [GCTA]
GCTA's purpose is to advance the science and practice of installing, repairing, maintaining and replacing utility lines and related facilities through construction and rehab techniques that do not require digging a trench (trenchless technology).
http://www.gctaonline.org/

Underground Utility Contractors of Florida
UUCF is a non-profit trade association representing over 600 underground utility contractors, material and equipment suppliers, and manufacturers throughout the state of Florida. UUCF members are involved in water, sewer, gas, and telephone installations accomplished through open excavation or trenchless technology.
http://www.uucf.com/

Pipeline Industries Guild
The UK-based world-wide authority on pipeline engineering and associated activities, attuned to the needs of its members and the industry. The Pipeline Industries Guild was formed in 1957. Since then, it has evolved to be the only association world-wide to cater directly for the needs of the pipeline industry, regardless of engineering discipline, application, or qualification.
http://www.pipeguild.co.uk/