American Public Works Association
- An international educational and professional association of public agencies, private sector companies, and individuals dedicated to providing high quality public works goods and services.
- http://www.apwa.net

Transportation Research Board
- Nonprofit institution, its mission is to promote innovation and progress in transportation by stimulating and conducting research, facilitating the dissemination of information, and encouraging the implementation of research results.
- http://gulliver.trb.org

European Asphalt Pavement Association - EAPA
- European industry association which represents the manufacturers of bituminous mixtures and companies engaged in asphalt road construction and maintenance and explains the use of bitumen emulsion in Europe.
- http://www.eapa.org/

RILEM
- Technical association developing the knowledge of properties of materials and performance of structures. Features members list, publications and meetings.
- http://www.rilem.org/

Roading New Zealand
- Representative body for contracting companies whose core business involves building and maintaining roading and land transport infrastructure. Features services, news and publications.
- http://www.roadingnz.org.nz/

AASHTO
- American Association of State Highway and Transportation Officials. An organization which sets transportation policies and authors many construction codes.
- http://transportation1.org/aashtonew/

Laboratoire Central des Ponts et Chaussées - France
- National organization for applied research and development. Features news and events, a presentation and a range of research documentation.
- http://www.lcpc.fr/en/home.dml

Missouri Asphalt Pavement Association
- Promotes the use of asphalt as a road construction material to architects, engineers, landowners and other government entities. Includes asphalt facts, news and events, and technical data.
- http://www.moasphalt.org/

American Road and Transportation Builders Association - ARTBA
- Full-service association for contractors, transportation officials, and equipment manufacturers. Features government affairs, conferences, newsletter, and educational materials.
- http://www.artba.org/

World Road Association - PIARC
- Provides an international forum for analysis and discussion of the full spectrum of transport issues, related to roads and road transport. Features projects, publications, members, and events.
- http://www.piarc.org/

Illinois Road and Transportation Builders Association
- Serving the interests of members in the heavy road, highway and bridge construction industry. Features news, information, education programs, member benefits, links and contacts.
- http://www.irtba.org/

American Concrete Pavement Association - Northeast Chapter
- Promote concrete pavement for highways, municipal streets, intersections, county roads and airports, in the south eastern United States.
- http://www.pavementse.com/

Washington Asphalt Paving Association - WAPA
- Represents hot mix asphalt producers in Washington State. Features pavement guides, conferences and scholarships.
- http://www.asphaltwa.com

National Association of County Engineers
- Monitor and provide opinions for national legislation affecting county transportation and public works departments.
- http://www.countyengineers.org/

National Stone, Sand, and Gravel Association
- Organization of producers of aggregates in the United States.Membership details, careers, publications, and events.
- http://www.nssga.org/

Minnesota Asphalt Pavement Association - MAPA
- Represents members interests regarding items involving transportation, the environment, and legislation. Includes members listing, calendar of events, and links to related organizations.
- http://www.asphaltisbest.com/

Asphalt Pavement Association of Indiana
- Trade association for asphalt pavement producer contractors. Features news, technical data, scholarships, and related links.
- http://www.ind-asphalt.com/

Asphalt Pavement Association of West Virginia
- Non-profit trade association representing the producers of hot mix asphalt along with other industry-related firms. Features members listing, news, and resource centre.
- http://www.asphaltwv.com/

National Partnership for Highway Quality - NPHQ
- National associations working together for the continuous quality improvement in the planning, design, construction, and maintenance of highways. Includes links to members and state project awards.
- http://www.nqi.org/

AGCIL - Associated General Contractors of Illinois
- Represents contractors, subcontractors, and associates, and serves its members by promoting the interests of the heavy-highway industry. Education, construction news, events, legislative resources and contacts.
- http://www.agcil.org/

American Concrete Pavement Association
- Dedicated to the promotion of the superiority of concrete pavements for use in interstate highways, state and county highways, municipal streets, local roads, and airports.
- http://www.pavement.com/

National Asphalt Paving Association
- Represents the producers of hot mix asphalt industry.
- http://www.hotmix.org/

The Asphalt Institute
- International trade association of petroleum asphalt producers, manufacturers and affiliated businesses. Includes technical questions, publications, seminars, international meetings, and transportation industry links.
- http://www.asphaltinstitute.org/

Mineta Transportation Institute.
- An international transportation information and repository source. Maintained in the USA .
- http://transweb.sjsu.edu/

Association of Asphalt Paving Technologists
- The association is dedicated to the advancement of asphalt paving technology.
- http://www.asphalttechnology.org/

International Society for Asphalt Pavements
- In addition to promoting technical advances, ISAP is looking at the future directions of the asphalt paving industry in terms of key issues such as environmental protection, socio-economic impacts, political concerns.
- http://www.asphalt.org/

Applied Research Associates Inc.
- Pavement research programs recognized for advancing the design, evaluation, construction, and management of airfield and highway systems.
- http://www.ara.com/

Rubber Pavements Association
- Dedicated to encouraging greater usage of high quality, cost effective asphalt pavements containing recycled tire rubber. Includes newsletter, video, and documentation library.
- http://www.rubberpavements.org/

Ontario Hot Mix Producers Association - OHMPA
- Provides a voice for hot mix asphalt producers on all subjects affecting the industry or members' businesses. Includes news and events, and educational resources.
- http://www.ohmpa.org/

The Canadian Geotechnical Society
- The society provides a wide range of opportunities for learning about geotechnical engineering and related geosciences.
- http://www.cgs.ca/

The Society of Rheology
- Composed of physicists, chemists, biologists, engineers, and mathematicians interested in the advancing and applications of rheology, which is defined as the science of deformation and flow of matter.
- http://www.rheology.org/sor/

International Road Federation (IRF)
- A not-for-profit, non-political service organisation. Its purpose and continuing objective is to encourage better road and transportation systems worldwide .
- http://www.irfnet.org/

AEMA
- Asphalt Emulsion Manufacturers Association, an international organization representing the asphalt emulsion industry.
- http://www.aema.org/

Asphalt Recycling And Reclaiming Association
- Worldwide association for those involved in the asphalt and recycling industry.
- http://www.arra.org/

Canadian Asphalt Shingle Manufacturers' Association
- Established to serve and promote the best interests of all stakeholders in the Canadian asphalt shingle industry; namely manufacturers, consumers, suppliers, distributors and employees.
- http://www.casma.ca

The Canadian Technical Asphalt Association
- Canadian forum dedicated to asphalt and asphalt mixes, products, manufacturing processes and technology.
- http://www.ctaa.ca/

Asphalt Pavement Association
- Trade association composed of hot mix asphalt producers and affiliated companies serving the California market.
- http://www.apaca.org

FHWA
- Federal Highway Administration who provide expertise, resources, and information to continually improve the quality of the nation's highway system and its intermodal connections.
- http://www.fhwa.dot.gov/

Southern Africa Bitumen Association
- Sabita is funded by its members to add value to their operations. Value addition is achieved through market developments and advancing the efficient use and application of bituminous- and asphalt products.
- http://www.sabita.co.za/