Serving 562 Members
95
Affiliate (Universities, NGOs, Other Nonprofits)
92
Business & Industry
374
Water Supplier
Lakehaven Water and Sewer District
Water Supplier (Retail)
Federal Way, WA
Member since 2009
https://www.lakehaven.org
The District has, under one name or another, provided service to the Federal Way area for more than 50 years. The water system includes 400 miles of mainline, 22 wells and 12 storage tanks with an approximate storage capacity of 31 million gallons. The average daily pumping rate is about 10.6 million gallons per day.
Lakeway Municipal Utility District
Water Supplier (Retail)
Lakeway, TX
Member since 2008
https://www.lakewaymud.org
Lakeway Municipal Utility District (LMUD), established in 1972, provides water, wastewater and some reuse services to many of the homes and businesses in the City of Lakeway and a portion of the Village of the Hills. LMUD serves over 4,200 water customers and over 3,000 wastewater customers.
Las Virgenes Municipal Water District
Water Supplier (Retail)
Calabasas, CA
Member since 2015
https://www.lvmwd.com/home
Las Virgenes Municipal Water District provides potable water, wastewater treatment, recycled water and biosolids composting to more than 75,000 residents in the cities of Agoura Hills, Calabasas, Hidden Hills, Westlake Village, and unincorporated areas of western Los Angeles County.
Liberty Utilities
Water Supplier (Retail)
Camden, NJ
Member since 2009
https://libertyutilities.com/
Liberty Utilities is a regulated water, wastewater, natural gas, electric and propane/air utility company providing local utility management, service and support to small and mid-sized communities across the United States.
Linda County Water District
Water Supplier (Retail)
Marysville, CA
Member since 2025
https://lindawater.com/
Little Thompson Water District
Water Supplier, Water Supplier (Retail)
Berthoud, CO
Member since 2026
https://www.littlethompsonwd.gov/
LIXIL/American Standard Brands
Business and Industry (Manufacturers, Distributors)
Piscataway, NJ
Member since 2008
https://www.americanstandard-us.com/press-room/press-releases/2017/01/10/lixil-corporate-overview
LIXIL provides products and services globally through several businesses, including LIXIL Americas. The LIXIL business is a global market leader in the Kitchen & Bath industry, and covers the full range of products across designs, technologies and price points. LIXIL is represented by its powerful range of brands, including GROHE, American Standard, DXV, LIXIL, and INAX. LIXIL continues to develop innovative products, leveraging the strengths of LIXIL Group companies.
Lombardo Associates
Business & Industry, Business and Industry (Consulting Firms, Businesses)
Newton, MA
Member since 2025
https://www.LombardoAssociates.com
Lone Star Groundwater Conservation District
Government (Federal, State/Province, Local)
Conroe, TX
Member since 2009
https://www.lonestargcd.org/
The mission of the Lone Star Groundwater Conservation District is to manage and protect the groundwater resources of Montgomery County and to work with others to ensure a sustainable, high-quality, and cost-effective water supply for current and future needs.
Long Beach Utilities
Water Supplier (Retail/Wholesale)
Long Beach, CA
Member since 2017
https://lbwater.org/
For the last 100 years, the Long Beach Water Department has provided Long Beach residents with high-quality, reliable drinking water. Today, the department supplies water and sewer services to nearly half a million people in a service area that covers more than 50 square miles.
Los Alamos County Department of Public Utilities
Water Supplier, Water Supplier (Retail)
Los Alamos, NM
Member since 2024
https://www.losalamosnm.us/Government/Departments-and-Divisions/Department-of-Public-Utilities
Los Alamos National Laboratory
Government (Federal, State/Province, Local)
Los Alamos, NM
Member since 2024
https://www.lanl.gov/
Los Angeles County Waterworks District
Water Supplier (Retail)
Alhambra, CA
Member since 2018
https://dpw.lacounty.gov/wwd/web/
The Los Angeles County Waterworks Districts (LACWD) supplies water to approximately 240,000 people, LACWD is able to maintain quality customer care and encourage environmentally responsible behavior. Their goal is to not only provide a reliable water source, but also to educate customers and community members on easy water-saving practices.
Los Angeles Department of Water & Power
Water Supplier (Retail)
Los Angeles, CA
Member since 2014
https://www.ladwp.com/
LADWP is committed to providing clean, reliable water and power and excellent customer service in a safe, environmentally responsible and cost-effective manner.
Los Osos Community Services District
Water Supplier (Retail)
Los Osos, CA
Member since 2021
https://www.losososcsd.org/
The Los Osos Community Services District provides the best possible services to the community of Los Osos including water, drainage, parks and recreation, street lighting for Vista De Oro and Bayridge Estates, fire emergency and rescue response.
Lower Colorado River Authority
Water Supplier (Wholesale)
Austin, TX
Member since 2008
https://www.lcra.org/Pages/default.aspx
LCRA provides many vital services to Texans, including delivering electricity, managing the water supply and environment of the lower Colorado River basin, providing public recreation areas, and supporting community development. LCRA’s mission is to enhance the quality of life of Texans through water stewardship, energy and community service.
M.Cubed
Business and Industry (Consulting Firms, Businesses)
Oakland, CA
Member since 2009
https://www.mcubed-econ.com/
M. Cubed, founded in 1993, provides economic and public policy consulting services to public and private sector clients. Practice areas include water and energy utility resource planning and ratemaking, resource use efficiency and conservation measures, project impact analysis, regional economic modeling, natural resource allocation policies, and environmental plan preparation and review.
Maddaus Water Management
Business and Industry (Consulting Firms, Businesses)
Danville, CA
Member since 2009
https://maddauswatermanagement.com/index.html
MWM has spent over 20 years serving clients and making a difference in water in the world, having completed over 300 projects, presented approximately 100 professional papers, and published four books.
Madison Water Utility
Water Supplier (Retail)
Madison, WI
Member since 2009
https://www.cityofmadison.com/water
Founded as a public utility in 1882, Madison Water Utility is proud to bring safe, high-quality water to more than 250,000 people across Madison, Shorewood Hills, Blooming Grove, Maple Bluff, parts of Fitchburg, the Town of Madison, and the Town of Burke. Their water comes from a deep aquifer beneath Madison and is pumped to the surface by 22 wells located across the city.
MaP Testing
Business and Industry (Consulting Firms, Businesses)
Acton, Ontario, Canada
Member since 2012
https://www.map-testing.com/
From toilet reviews and flush ratings, to water usage reports and efficiency grades, MaP is an industry-leading provider of the most current plumbing data.
Marin Municipal Water District
Water Supplier (Retail)
Corte Madera, CA
Member since 2008
https://www.marinwater.org/
Established in 1912, the Marin Municipal Water District provides high-quality drinking water to 190,300 customers in central and southern Marin County. Seventy-five percent of their water comes from more than 21,600 acres of protected watershed on Mt. Tamalpais and in the grassy hills of west Marin.
Marina Coast Water District
Water Supplier (Retail)
Marina, CA
Member since 2012
https://www.mcwd.org/
The Marina Coast Water District's Central Marina and Ord Community water service areas overlie portions of the Monterey Subbasin, the 180/400 Foot Aquifer Subbasin, and part of the Seaside Adjudicated Basin. Three of the District wells are located in Central Marina and five wells are in the Ord Community.
Massachusetts Department of Conservation and Recreation
Government (Federal, State/Province, Local)
Boston, MA
Member since 2017
https://www.mass.gov/orgs/department-of-conservation-recreation
The Department of Conservation and Recreation manages state parks and oversees more than 450,000 acres throughout Massachusetts. It protects, promotes, and enhances the state’s natural, cultural, and recreational resources.
Massachusetts Rivers Alliance
Affiliate (Universities, NGOs, Other Nonprofits)
Somerville, MA
Member since 2025
https://www.massriversalliance.org/
Massachusetts Water Resources Authority
Water Supplier (Wholesale)
Boston, MA
Member since 2012
https://www.mwra.com
Massachusetts Water Resources Authority is a public authority established by an act of the Legislature in 1984 to provide wholesale water and sewer services to 3.1 million people and more than 5,500 large industrial users in 61 metropolitan Boston communities.
Maureen Erbeznik & Associates
Business and Industry (Consulting Firms, Businesses)
Los Angeles, CA
Member since 2008
A women-owned consulting firm specializing in program design, implementation and marketing services for energy and water efficiency programs.
McHenry County Government
Government (Federal, State/Province, Local)
Woodstock, IL
Member since 2009
https://www.mchenrycountyil.gov/
McHenry County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 308,760, making it the sixth-most populous county in Illinois. Its county seat is Woodstock.
Medford Water
Water Supplier (Retail/Wholesale)
Medford, OR
Member since 2012
https://www.medfordwater.org/
The Medford Water Commission operates and maintains the water system that delivers high-quality drinking water to around 136,000 Rogue Valley residents. The Commission directly serves customers in the City of Medford and the unincorporated community of White City. The cities of Ashland, Central Point, Eagle Point, Jacksonville, Phoenix and Talent are served on a wholesale basis. Additionally, two domestic water districts purchase water from the Commission.
Melbourne Water
Water Supplier (Wholesale)
Melbourne, Victoria, Australia
Member since 2010
https://www.melbournewater.com.au/
Melbourne Water is a statutory authority owned by the Victorian Government. They manage and protect Melbourne’s major water resources on behalf of the community. As a leader in world class integrated water, sewerage, waterways and amenity management, they're committed to making sure the city continues to thrive while adapting to climate change, urbanisation and population growth.
Meridian Service Metropolitan District
Water Supplier (Retail)
Falcon, CO
Member since 2020
https://www.meridianranchmetro.org/
The Meridian Service Metropolitan District is the “Service District” providing the water, wastewater (sanitation sewer) services, parks, trails, recreation facilities, and streetlights for the Meridian Ranch Community.
Mesa Water District
Water Supplier (Retail)
Costa Mesa, CA
Member since 2019
https://www.mesawater.org/
Mesa Water District strives to deliver high-quality drinking water to customers taps, maintain a safe, reliable water infrastructure and system, and provide excellent service to ensure customer satisfaction. They supply water to 110,000 residents in an 18-square-mile area. The service area includes Costa Mesa, parts of Newport Beach, and some unincorporated areas of Orange County, including John Wayne Airport.
Metropolitan North Georgia Water Planning District
Government (Federal, State/Province, Local)
Atlanta, GA
Member since 2008
https://northgeorgiawater.org/
Since its creation in 2001, the Metropolitan North Georgia Water Planning District (Metro Water District) has implemented one of the most comprehensive regional water management plans in the country. It is staffed by the Atlanta Regional Commission (ARC) and includes 15 counties and 95 cities. It is the only major metropolitan area in the country with more than 100 jurisdictions implementing a long-term comprehensive water management program that is required and enforced.
Metropolitan Water District of Southern California
Water Supplier (Wholesale)
Los Angeles, CA
Member since 2008
https://mwdh2o.com/
Metropolitan built and maintains a water supply system that is the cornerstone of the region’s $1 trillion economy. As the nation’s largest municipal water provider, Metropolitan owns and operates five separate treatment plants, among the largest in the world. The district’s complex network of pipelines and facilities consistently delivers high quality water throughout its 5,200 square mile service area. Rigorous maintenance and regular capital investments ensure Metropolitan’s customers benefit from reliable service and advancements in water supply and water quality technology, including state-of-the-art treatment upgrades.
Mid-Peninsula Water District
Water Supplier (Retail)
Belmont, CA
Member since 2008
https://www.midpeninsulawater.org/
For more than 85 years, the Mid-Peninsula Water District (MPWD) has provided its customers with safe, quality water. Along with this unwavering commitment, we also offer friendly, professional service. The mission of the MPWD is to deliver a safe, high-quality, reliable supply of water for current and future generations in a cost-effective, environmentally-sensitive, and efficient manner.
Midwest Energy Efficiency Alliance
Affiliate (Universities, NGOs, Other Nonprofits)
Chicago, IL
Member since 2024
https://www.mwalliance.org/
Minnesota Department of Natural Resources
Government (Federal, State/Province, Local)
St. Paul, MN
Member since 2026
https://www.dnr.state.mn.us/
Mojave Water Agency
Water Supplier (Wholesale)
Apple Valley, CA
Member since 2018
https://www.mojavewater.org/
The MWA's boundaries encompass approximately 4,900 square miles of the High Desert in San Bernardino County. As a state water contractor, MWA is entitled to receive an annual allotment of up to 85,800 acre feet of water from the State Water Project via the California Aqueduct. This facility extends south from the Sacramento Delta and runs locally through the communities of Baldy Mesa and Hesperia.
Monte Vista Water District
Water Supplier (Retail)
Montclair, CA
Member since 2010
https://www.mvwd.org/
Monte Vista Water District (MVWD), a county water district formed in 1927, provides retail and wholesale water supply services to a population of over 130,000 within a 30-square mile area, including the communities of Montclair, Chino Hills, portions of Chino and the unincorporated area lying between the cities of Pomona, Chino Hills, Chino and Ontario.
Montecito Water District
Water Supplier, Water Supplier (Retail)
Montecito, CA
Member since 2022
https://montecitowater.com/
Monterey Peninsula Water Management District
Government (Federal, State/Province, Local)
Monterey, CA
Member since 2009
https://www.mpwmd.net/
Since 1978, The Monterey Peninsula Water Management District has worked diligently to augment the area’s water supply, promote water conservation and the integrated use of reclaimed water and repair, improve and augment the environment along local streamside habitats.
Moulton Niguel Water District
Water Supplier (Retail)
Laguna Niguel, CA
Member since 2015
https://www.mnwd.com/
Moulton Niguel Water District provides water, recycled water, and wastewater treatment service to more than 170,000 customers in Laguna Niguel, Aliso Viejo, Laguna Hills, Mission Viejo, Dana Point and San Juan Capistrano. They are dedicated to providing communities with safe, reliable, and high-quality water services.
Municipal Water District of Orange County
Water Supplier (Wholesale)
Fountain Valley, CA
Member since 2018
https://www.mwdoc.com/
The MWDOC's mission is to provide reliable, high-quality supplies from Metropolitan Water District of Southern California and other sources to meet present and future needs at an equitable and economical cost, and to promote water use efficiency for all of Orange County.
Myoma Dunes Water Company
Water Supplier (Retail)
Bermuda Dunes, CA
Member since 2019
https://www.myomawater.com/
Myoma Dunes Water Company has provided drinking water to the Bermuda Dunes area since 1953. They are a small mutual water company serving approximately 2,450 residents in parts of Bermuda Dunes and La Quinta area.
Namara Water
Business & Industry, Business and Industry (Consulting Firms, Businesses)
Encinitas, CA
Member since 2024
https://namara.ae/
National Association of Landscape Professionals
Affiliate (Universities, NGOs, Other Nonprofits)
Fairfax, VA
Member since 2024
https://landscapeprofessionals.org/
National Turfgrass Evaluation Program
Affiliate (Universities, NGOs, Other Nonprofits)
Beltsville, MD
Member since 2009
https://www.ntep.org/ntep/contents2.shtml
The National Turfgrass Evaluation Program (NTEP) is designed to develop and coordinate uniform evaluation trials of turfgrass varieties and promising selections in the United States and Canada. Test results can be used by national companies and plant breeders to determine the broad picture of the adaptation of a cultivar. Results can also be used to determine if a cultivar is well adapted to a local area or level of turf maintenance.
National Wildlife Federation
Affiliate (Universities, NGOs, Other Nonprofits)
Reston, VA
Member since 2018
https://www.nwf.org/
The National Wildlife Federation, America's oldest and largest conservation organization, works across the country to unite Americans from all walks of life in giving wildlife a voice. They've been on the front lines for wildlife since 1936, fighting for the conservation values that are woven into the fabric of our nation's collective heritage.
NEOPERL
Business and Industry (Manufacturers, Distributors)
Waterbury, CT
Member since 2008
https://www.neoperl.com/default.aspx
NEOPERL® offers products that shape and control water streams, meet flow rate regulations, protect from backflow and facilitate compliance with Codes and Standards.
Nevada Irrigation District
Water Supplier
Grass Valley, CA
Member since 2025
https://www.nidwater.com/
Nevada Special Utility District
Water Supplier, Water Supplier (Retail)
Nevada, TX
Member since 2024
https://nevadawater.org/
New Braunfels Utilities
Water Supplier (Retail)
New Braunfels, TX
Member since 2019
https://nbutexas.com/
New Braunfels Utilities is one of 2,000 community-owned, nonprofit, public power electric utilities in the nation. New Braunfels Utilities is governed by a Board of Trustees made up of local residents appointed by the New Braunfels City Council.
New Mexico Water Conservation Alliance
Affiliate (Universities, NGOs, Other Nonprofits)
Santa Fe, NM
Member since 2016
https://nmwca.org/
New Mexico Water Conservation Alliance (NMWCA) is a 501(c)(3) non-profit organization whose goal is to promote water conservation education, innovation and ideas throughout the State of New Mexico. The alliance is composed of individuals from industry, commercial, water providers and municipalities.
New York City
Water Supplier, Water Supplier (Retail/Wholesale)
Newark, NJ
Member since 2026
https://www.nyc.gov/main
Niagara Conservation Corporation
Business & Industry, Business and Industry (Manufacturers, Distributors)
Flower Mound, TX
Member since 2008
https://pro.niagaracorp.com/?utm_source=A4WE&utm_medium=web&utm_campaign=A4WE_Membership+Page
The Niagara name has become synonymous with innovative conservation for a growing customer base of utility companies, government leaders, energy management officials, and eco/cost-conscious homeowners and developers. Today—as climate change, population growth, and record droughts present an unprecedented strain on our water supply—Niagara is doubling down on their purpose and pushing their technology to invent new ways for customers to conserve water without sacrificing performance.
Nipomo Community Services District
Water Supplier (Retail)
Nipomo, CA
Member since 2018
https://ncsd.ca.gov/
The Nipomo Community Services District’s mission is to provide its customers with reliable, quality, and cost-effective services now and in the future.
North Coast County Water District
Water Supplier (Retail)
Pacifica, CA
Member since 2018
https://www.nccwd.com/
The North Coast County Water District has been providing water to the residents of the City of Pacifica since 1944. The commitment expressed in their slogan: "Safe Drinking Water is our Business" has been maintained for more than 74 years due to the dedication and commitment of a series of qualified directors and staff. The staff and all employees of the Water District are committed to providing prompt, efficient and courteous customer service.
North Fort Bend Water Authority
Government (Federal, State/Province, Local)
Houston, TX
Member since 2009
https://www.nfbwa.com/
Established by the Texas Legislature in May 2005, the North Fort Bend Water Authority was created to assist in converting the region within its boundaries from using groundwater to predominantly surface water in order to combat subsidence. The Authority acquires, develops and delivers a long-term supply of potable surface water to users.
North Marin Water District
Water Supplier (Retail)
Novato, CA
Member since 2008
https://www.nmwd.com/
North Marin Water District serves a suburban population of 61,000 people situated in and about the City of Novato which is located in a warm inland coastal valley of Marin County, California and several small improvement districts in the West Marin area near the coast. They provide an adequate supply of safe, reliable and high quality water and deliver reliable and continuous sewer service to customers at reasonable cost consistent with good conservation practices and minimum environmental impact.
North Texas Municipal Water District
Water Supplier (Wholesale)
Wylie, TX
Member since 2008
https://www.ntmwd.com/
Since its inception more than six decades ago, NTMWD has collaborated with North Texas cities and communities on the design and operation of systems. The ten original Member Cities are: Farmersville, Forney, Garland, McKinney, Mesquite, Princeton, Plano, Rockwall, Royse City, and Wylie. Richardson joined as a Member City in 1973, Allen in 1998, and Frisco in 2001. This regional partnership has reduced costs, facilitated access to water, wastewater and solid waste services to communities large and small, and streamlined service delivery.
In Partnership with AWE
NTMWD was featured in AWE's Exemplary Programs Series webinar, School and Youth Conservation Programs to Educate Tomorrow's Water Warriors. Click here to watch the webinar and download the presentation. Contact: Denise Hickey, Water Resource Program & Public Education Manager.
Northern Water
Water Supplier (Wholesale)
Berthoud, CO
Member since 2020
https://www.northernwater.org/
With growth continuing in Northeastern Colorado, Northern Water now serves more than 1 million residents within its service area. This area encompasses 1.6 million areas in portions of eight counties: Boulder, Broomfield, Larimer, Logan, Morgan, Sedgwick, Washington and Weld.
Northern Water provides cities, towns, rural-domestic water districts and industries with year-round water deliveries. Furthermore, during the primary growing season between April and October, they also deliver water to more than 120 ditch, reservoir and irrigation companies serving thousands of farms and more than 500,000 acres.
Ohio Department of Natural Resources
Government (Federal, State/Province, Local)
Columbus, OH
Member since 2023
https://ohiodnr.gov/
A department of incredible diversity, ODNR owns and manages more than 800,000 acres of land, including 75 state parks, 24 state forests, 143 state nature preserves and 150 wildlife areas. The department also has jurisdiction over more than 120,000 acres of inland waters; 7,000 miles of streams; 481 miles of Ohio River; and 2.25 million acres of Lake Erie.
Ohio Environmental Council
Affiliate (Universities, NGOs, Other Nonprofits)
Columbus, OH
Member since 2024
https://theoec.org/
Ohio Water Partnership
Affiliate (Universities, NGOs, Other Nonprofits)
Columbus, OH
Member since 2024
https://ohiowaterpartnership.com/
Oildale Mutual Water Company
Water Supplier, Water Supplier (Retail)
Bakersfield, CA
Member since 2026
https://www.oildalewater.com/