Design-Build Institute of America
The Design-Build Institute of America is the only organization that defines, teaches and promotes best practices in design-build. Design-build is an integrated approach that delivers design and construction services under one contract with a single point of contact and responsibility.

American Society of Professional Estimators
The American Society of Professional Estimators serves residential, commercial and civil construction estimators by providing Education, Fellowship, and the opportunity for Professional Development. The proper Education, Ethics, Standards, Certification and Fellowship lead to the ultimate goal of Professionalism.
U.S. Green Building Council
The U.S. Green Building Council (USGBC) is committed to a sustainable, prosperous future through LEED, the leading program for green buildings and communities worldwide. The mission of the USGBC is to transform the way buildings and communities are designed, built and operated.
Society of American Engineers
Founded in 1920, SAME unites public and private sector individuals and organizations from across the architecture, engineering, construction, environmental and facility management, cyber security, project planning, contracting and acquisition, and related disciplines in support of national security.
Associalted Builders and Contractors
The Associated Builders and Contractors is a national construction industry trade association representing more than 21,000 members. Founded on the merit shop philosophy, ABC and its 70 chapters help members develop people, win work and deliver that work safely, ethically and profitably.
Utility Contractors Association
The Utility Contractors Association of New England, Inc. (UCANE) is comprised of over 250 major contractors and associated businessmen and women who perform underground utility construction projects primarily in Massachusetts and throughout the New England states.
Northeast Energy and Commerce Association
Founded in 1985 to foster the development and maturation of competitive power markets, NECA's purpose has expanded over time and now serves as an open forum among all stakeholders with a full range of energy and environmental interests.
The NHWPCA consists of individuals who are either wastewater professionals, engineers, vendor representatives and support staff. These individuals collectively come together with different ideas that lead to one goal - A Cleaner Environment.

Maine Water Utilities Association
The Maine Water Utilities Association (MWUA) is a non - profit membership organization which was organized in 1925. The MWUA is an advocate for the water supply profession. We share experiences at bimonthly meetings, sponsor training sessions for members and provide mutual support.

Northeast Gas Association
The Northeast Gas Association's mission is to promote and enhance the safe, reliable, efficient, and environmentally responsible delivery of natural gas to customers in the region, and to advocate for the industry from production to delivery.

New England Water Works Association
The New England Water Works Association (NEWWA) is a membership organization for those working or interested in the drinking water profession. Headquartered in Holliston, Mass., it brings together water utilities, consultants, manufacturers, vendors, regulators, academia, and other interested parties to network, educate, and advocate.
New Hampshire Water Works Association
The New Hampshire Water Works Association (NHWWA) is a nonprofit professional organization with a membership consisting of municipal water systems, community-type water systems, investor owned water utilities, water works equipment and materials manufacturers and suppliers, engineers, consultants and government regulators and others.