U.S. Climate Action Network

Affiliate (Universities, NGOs, Other Nonprofits)

Washington, DC

Member since 2013

https://www.usclimatenetwork.org/

USCAN is a vital network for 175+ organizations active on climate change. Their mission is to build trust and alignments among members to fight climate change in a just and equitable way.

U.S. Water Alliance

Affiliate (Universities, NGOs, Other Nonprofits)

Washington, DC

Member since 2011

https://uswateralliance.org/

The U.S. Water Alliance advances policies and programs that build a sustainable water future for all. They believe that all water has value. It must be managed in a sustainable and inclusive manner to build strong economies, vibrant communities, and healthy environments.

Upper San Gabriel Valley Municipal Water District

Water Supplier (Wholesale)

Monrovia, CA

Member since 2011

https://upperdistrict.org/

Upper District is a special district formed by the region’s voters on December 8, 1959 to help sustain adequate water supplies in the rapidly-developing San Gabriel Valley. The District was incorporated shortly thereafter on January 7, 1960. On March 12, 1963, residents within Upper District’s service area voted to annex to the Metropolitan Water District of Southern California (MWD).

Upper Trinity Regional Water District

Water Supplier (Wholesale)

Lewisville, TX

Member since 2013

https://www.utrwd.com/

UTRWD’s mission is to plan, develop and manage water and wastewater services in the interest of members, using consensus based strategies that are environmentally and economically sound.

Utah Department of Natural Resources – Division of Water Resources

Affiliate (Universities, NGOs, Other Nonprofits)

Salt Lake City, UT

Member since 2025

https://water.utah.gov/

Utah Water Conservation Forum

Affiliate (Universities, NGOs, Other Nonprofits)

Salt Lake City, UT

Member since 2009

https://www.utahwaterconservationforum.org/

The Utah Water Conservation Forum’s mission is to support local, state, and federal water agencies and professionals in sustaining a statewide water conservation movement. They accomplish this by increasing awareness and knowledge of the principles, methods, and research that promote water conservation and water-use efficiency.

Vallecitos Water District

Water Supplier (Retail)

San Marcos, CA

Member since 2016

https://www.vwd.org/

For more than 60 years, Vallecitos Water District has been providing water, wastewater, and reclamation services to San Marcos; the community of Lake San Marcos; parts of Carlsbad, Escondido and Vista and other unincorporated areas in north San Diego County.

Valley Center Municipal Water District

Water Supplier (Retail)

Valley Center, CA

Member since 2018

https://www.vcmwd.org/

After 60 years, three General Obligation Bond issues, formation of 12 water system improvement areas, and several federal grants and loans, as well as contributions from private developers, the District’s Water System has 297 miles of pipe, 7 aqueduct connections, 27 pumping stations, 106 pumps, and 42 covered reservoirs with 137 million gallons of water storage.

Valley County Water District

Water Supplier (Retail)

Baldwin Park, CA

Member since 2020

https://www.vcwd.org/page/8291_Home.asp

Valley County Water District is an independent special district originally formed under the jurisdiction of the California Water Code on January 18, 1926 as Baldwin Park County Water District, primarily serving a portion of the City of Baldwin Park. By 1974 the service area of Valley County Water District was well developed, and potable water service was being provided to approximately 9,000 water service connections through an intricate production and delivery system covering portions of the City of Baldwin Park, the City of Irwindale, the City of West Covina, and the City of Azusa.

Valley of the Moon Water District

Water Supplier (Retail)

Sonoma, CA

Member since 2013

https://www.vomwd.org/

It is the mission of the Valley of the Moon Water District to provide its customers with reliable, safe water at an equitable price, and to ensure the fiscal and environmental vitality of the District for future generations.

Valley Partnership

Affiliate (Universities, NGOs, Other Nonprofits)

Phoenix, AZ

Member since 2024

https://www.valleypartnership.org/

Valley Water

Water Supplier (Wholesale)

San Jose, CA

Member since 2011

https://www.valleywater.org/

Founded in 1929, Valley Water (formerly the Santa Clara Valley Water District), provides safe, clean water; flood protection; and stewardship of streams.

Ventura County Public Works Agency Water & Sanitation

Water Supplier

Ventura, CA

Member since 2025

https://www.vcpublicworks.org/wsd/

Ventura County Waterworks District #8

Water Supplier (Retail)

Simi Valley, CA

Member since 2018

https://www.simivalley.org/departments/public-works/waterworks-vcwwd-no-8

Waterworks Services in Simi Valley are currently provided through two suppliers of water: Golden State Water Company and City of Simi Valley/Waterworks District No. 8 (District). The District delivers over 23,000 acre feet annually to 24,000 service connections. In addition to 40 storage facilities, such as water tanks, the District has 2,700 fire hydrants, 18 pump stations, and 357 miles of water pipes in its system.

Ventura Water

Water Supplier (Retail)

Ventura, CA

Member since 2011

https://www.cityofventura.ca.gov/885/Ventura-Water

Ventura Water provides drinking water to more than 109,000 people through approximately 31,000 water service connections. Their complex water system has more than 380 miles of pipeline, 3 water treatment plants, 23 pump stations, and 31 reservoirs.

Veolia Water New York

Water Supplier (Retail)

Paramus, NJ

Member since 2022

https://mywater.veolia.us/new-york/new-york-homepage-0

VertexOne

Business and Industry (Consulting Firms, Businesses)

San Francisco, CA

Member since 2012

https://www.watersmart.com/

WaterSmart delivers proven customer self-service solutions that make the lives of utility staff easier, allowing them to communicate with customers at key moments to reduce service costs and improve satisfaction.

In Partnership with AWE

WaterSmart Software was featured in AWE's Innovations in Efficiency Showcase Series webinar, Merging Technology and Science to Instill a Water Ethic: Innovative Customer Education Strategies for Water Managers. Click here to watch the webinar and download the presentation. Contact: Dominique Gomez, Director of Market Development.

Vista Irrigation District

Water Supplier (Retail)

Vista, CA

Member since 2025

https://www.vidwater.org/

Walnut Valley Water District

Water Supplier (Retail)

Walnut, CA

Member since 2020

https://www.wvwd.com/

Formed in 1952, Walnut Valley Water District is located approximately 20 miles east of Los Angeles in the San Gbriel Valley, encompasing an area of approximately 29 square miles wtih over 27,000 service connections serving over 100,000 mulit-use customers in six communities. The District's present service area includes all of the city of Diamond Bar, portions of the cities of Industry, Pomona, Walnut and West Covina, and the easterly section of the unincorporated area of Rowland Heights.

Washington County Water Conservancy District

Water Supplier (Wholesale)

St. George, UT

Member since 2021

https://www.wcwcd.org/

Washington County Water Conservancy District, a not-for-profit public agency, was established in 1962 to manage Washington County’s water needs. It’s charged with conserving, developing, managing, and stabilizing water supplies within the county in an ongoing effort to provide a safe, sustainable water supply for current and future generations.

Water and Wastewater Authority of Wilson

Water Supplier (Retail)

Lebanon, TN

Member since 2020

https://www.wwawc.com/

Water and Wastewater Authority of Wilson County provides water to the eastern portion of Wilson County, Tennessee.  

Water Demand Management

Business and Industry (Consulting Firms, Businesses)

Boulder, CO

Member since 2013

https://www.waterdm.com/

WaterDM is an engineering consulting firm focused on demand side management of water resources. Founded by urban water management expert, Peter Mayer, P.E., WaterDM provides services across North America.

Water Efficient Gardens

Business and Industry (Consulting Firms, Businesses)

San Jose, CA

Member since 2019

https://www.waterefficientgarden.com

Water Efficient Garden aims to make it easier for homeowners who want to conserve water and have a low water use garden. In one site they bring together the information of resources required for building such gardens: design ideas/inspirations, native and drought tolerant plants, landscape conversion rebates etc.

Water Management

Business and Industry (Consulting Firms, Businesses)

Alexandria, VA

Member since 2008

https://www.watermgt.com/

Water Management’s goal is to create smart water saving environments that are more efficient and sustainable. To do this, they invest in their products, people and processes. The environmental, social and economic demands on customers has never been greater. Their ability to help customers meet these demands and be more sustainable has been their daily focus for over 35 years.

Water Replenishment District of Southern California

Government (Federal, State/Province, Local)

Lakewood, CA

Member since 2018

https://www.wrd.org/

The Water Replenishment District of Southern California (WRD) is the largest groundwater agency in the State of California, managing and protecting local groundwater resources for four million residents. WRD ensures that a reliable supply of high quality groundwater is available through the use of recycled water and stormwater capture. WRD is responsible for monitoring and testing groundwater throughout the region using effective management principles.

Water Services Association of Australia

Affiliate (Universities, NGOs, Other Nonprofits)

Docklands, Victoria, Australia

Member since 2009

https://www.wsaa.asn.au/

The Water Services Association of Australia (WSAA) is the peak industry body representing the urban water industry. Their members provide water and sewerage services to over 20 million customers in Australia and New Zealand and many of Australia's largest industrial and commercial enterprises.

Water Systems Consulting

Business and Industry (Consulting Firms, Businesses)

San Luis Obispo, CA

Member since 2020

https://expectwsc.com/

Water Systems Consulting, Inc. (WSC) is a civil and environmental engineering firm that specializes in the planning, design, evaluation and optimization of municipal drinking water, wastewater and recycled water systems, as well as water resources.  WSC serves special districts, cities, counties, investor owned utilities and regulatory agencies throughout California, Oregon and Washington.

Water-Use It Wisely

Affiliate (Universities, NGOs, Other Nonprofits)

Mesa, AZ

Member since 2025

https://wateruseitwisely.com/

WateReuse Association

Affiliate (Universities, NGOs, Other Nonprofits)

Alexandria, VA

Member since 2019

https://watereuse.org/

The WateReuse Association is the nation’s only trade association solely dedicated to advancing laws, policy, funding, and public acceptance of recycled water. WateReuse represents a coalition of utilities that recycle water, businesses that support the development of recycled water projects, and consumers of recycled water.

WaterNow Alliance

Affiliate (Universities, NGOs, Other Nonprofits)

San Francisco, CA

Member since 2017

https://www.waternow.org

WaterOne

Water Supplier, Water Supplier (Retail/Wholesale)

Lenexa, KS

Member since 2026

https://waterone.org

Watershed

Business and Industry (Consulting Firms, Businesses)

Vashon, WA

Member since 2008

https://www.watershedllc.net/

Watershed LLC is dedicated to helping customers reduce their water and energy use, improve their landscape impact, and increase the sustainability of their properties. They do this through water and energy audits, green building consulting, cost and savings analysis, project development and management, research, demonstration, and training.

Watershed Progressive

Business & Industry

Ojai, CA

Member since 2025

https://www.watershedprogressive.com/

Waukesha Water Utility

Water Supplier (Retail)

Waukesha, WI

Member since 2019

https://www.waukesha-water.com/

In June of 2016, the Great Lakes Compact unanimously approved Waukesha’s application to borrow water through a pipeline from Lake Michigan, and then treat it and return it all to the lake via the Root River. Waukesha developed a water conservation/protection plan which aims to reduce water usage by 20% by the year 2020.

Weber Basin Water Conservancy District

Water Supplier

Layton, UT

Member since 2025

https://www.weberbasin.gov/

Webers Water Conservation

Business & Industry, Business and Industry (Consulting Firms, Businesses)

Encinitas, CA

Member since 2024

https://weberswater.com/

West Basin Municipal Water District

Water Supplier (Wholesale)

Carson, CA

Member since 2008

https://www.westbasin.org/

West Basin Municipal Water District is a wholesale water agency that provides imported drinking water to 17 cities and unincorporated areas of Los Angeles County throughout its 185 square mile service area. An innovative public agency, West Basin is a recognized leader in the production of recycled water, conservation and education programs.

West Kern Water District

Water Supplier, Water Supplier (Retail)

Taft, CA

Member since 2025

https://wkwd.org/

West Valley Water District

Water Supplier, Water Supplier (Retail)

Rialto, CA

Member since 2023

https://www.wvwd.org/

Western Municipal Water District

Water Supplier (Retail/Wholesale)

Riverside, CA

Member since 2009

https://www.wmwd.com/

Providing reliable drinking water to customers on a daily basis, Western MWD works to secure water supplies for the future as well as today. It takes engineering, infrastructure, responsible management and strategic governance to ensure the roughly 28 billion gallons of water they provide to their customers in western Riverside County is safe and reliable 365 days a year.

Western Policy Research

Business and Industry (Consulting Firms, Businesses)

Santa Monica, CA

Member since 2017

WPR specializes in the following: Statistical Program Evaluation, Econometric Demand Forecasting, Cost and Cost-Effectiveness Analysis, Surveying, and Conservation Savings Analysis. The firm’s Principal is Anil Bamezai, PhD.

Whirlpool Corporation

Business & Industry, Business and Industry (Manufacturers, Distributors)

Benton Harbor, MI

Member since 2008

https://www.whirlpoolcorp.com/

Whirlpool Corporation is the world’s leading major home appliance company, with approximately $21 billion in annual sales, 92,000 employees and 65 manufacturing and technology research centers in 2018. The company markets Whirlpool, KitchenAid, Maytag, Consul, Brastemp, Amana, Bauknecht, JennAir, Indesit and other major brand names in nearly every country throughout the world.

Winter Haven Water

Water Supplier (Retail)

Winter Haven, FL

Member since 2021

https://www.mywinterhaven.com/utilities/

Winter Haven Water has 21 production wells, 9 water plants, 2 wastewater plants, about 500 miles of water mains and 330 miles of wastewater mains. They proudly serve approximately 35,000 utility accounts in the greater Winter Haven Area.

Wisconsin Department of Natural Resources

Government (Federal, State/Province, Local)

Madison, WI

Member since 2009

https://dnr.wi.gov/

In partnership with individuals and organizations, DNR staff manage fish, wildlife, forests, parks, air and water resources while promoting a healthy, sustainable environment and a full range of outdoor opportunities.

Withlacoochee Regional Water Supply Authority

Water Supplier (Wholesale)

Lecanto, FL

Member since 2017

https://www.wrwsa.org/

The Withlacoochee Regional Water Supply Authority (WRWSA) is a multi-county special district of the State of Florida charged with planning for and developing cost-efficient, high-quality water supplies for its member governments. WRWSA promotes environmental stewardship through its water conservation programs and will develop alternative water sources when necessary to augment traditional water supplies to meet the region’s long-term needs.

Woodard & Curran

Business & Industry, Business and Industry (Consulting Firms, Businesses)

Portland, ME

Member since 2025

https://www.woodardcurran.com/

Wylie Northeast Special Utility District

Water Supplier, Water Supplier (Retail)

Wylie, TX

Member since 2024

https://wylienortheastwater.com/

Yoppify

Business & Industry, Business and Industry (Consulting Firms, Businesses)

Riverton, UT

Member since 2022

https://yoppify.com/

Yoppify helps utilities connect with the public with different communication modes. Make interactions with the public effortless, meaningful, and fast—no matter your staff size, needs, or experience. Yoppify helps communicate through getting contacts in order, planning for emergency communications, segmenting and preparing communications for delivery, and utilizing the communication data for growth.

Yucaipa Valley Water District

Water Supplier (Retail)

Yucaipa, CA

Member since 2019

https://www.yvwd.dst.ca.us/

The District's local water is supplied from groundwater through local wells, and surface water collected from Birch Creek, Oak Glen Creek, Adams Tunnel and Clark Tunnel. Additionally, the District purchases imported water from the State Water Project through the San Bernardino Valley Municipal Water District and the San Gorgonio Pass Water Agency for direct filtration and for recharge of the groundwater basin.

Zone 7 Water Agency

Water Supplier (Wholesale)

Livermore, CA

Member since 2014

https://www.zone7water.com/

Zone 7 Water Agency is committed to providing a reliable supply of high quality water and an effective flood control system to the Livermore-Amador Valley.