American Water Works Company, Inc.
American Water Works Company, Inc. is a U.S. water and wastewater utility holding company with roots dating back to 1886. It owns and operates regulated utilities that provide drinking water, wastewater, and related services to about 14 million people across 24 states, making it the largest publicly traded water and wastewater utility in the United States by operating revenue and population served. The company also serves the U.S. government on military installations and municipalities through non-regulated businesses. Its model is built around local utility franchises, state-regulated rates, and long-lived infrastructure that requires ongoing capital investment and regulatory approval.
Fiscal year 2025 · change from previous year
Development 2020–2025
Business
Share of revenueRetail water delivery to residential, commercial, industrial, public authority and fire service customers through regulated local utilities.
Wastewater collection, treatment and related utility services provided under state-regulated franchises.
Water sales and wastewater treatment provided to other utilities, community systems and bulk-contract customers.
Non-regulated water and wastewater operations for U.S. government installations and municipalities.
Customers
American Water serves a broad mix of end users, but residential customers are the core of the business across its operating states. It also sells to commercial customers such as food and beverage providers, property developers and energy suppliers, as well as industrial users including manufacturers and mining operations. Public authorities, schools, universities, fire service customers and other utilities/community systems are also important, especially where bulk contracts or resale arrangements exist. The company’s affordability programs and low-income rate support efforts reflect the fact that customer retention and regulatory acceptance depend on keeping essential water service affordable.
Households buying regulated water and wastewater service for everyday essential use; this is the largest customer base and the main source of recurring utility demand.
Businesses such as food and beverage providers, property developers and energy suppliers that buy reliable utility service to support operations and site development.
Large manufacturers, mining and production operations that require dependable water supply and wastewater handling for process needs.
Government buildings, schools and universities that purchase utility service for public facilities and campuses.
Fire hydrant and private fire protection users, plus other utilities and community systems buying water or wastewater treatment under bulk arrangements.
Strategy
American Water’s strategy is centered on growing through regulated capital investment, regulated acquisitions and organic customer growth in existing systems. Management explicitly ties earnings growth to infrastructure replacement and expansion, with rate recovery supporting returns on those investments. The company also emphasizes affordability support and rate design reform, which helps sustain regulatory relationships and customer acceptance in a politically sensitive essential-service business. In parallel, it is investing in treatment technologies and operational systems to address water quality, reliability, cybersecurity and long-term service quality.
Rate-regulated capital spending is the main engine for earnings growth and service reliability.
Acquisitions expand the customer base and service footprint while fitting the utility franchise model.
Keeping service affordable reduces political and regulatory friction and supports customer retention.
Treatment upgrades and digital systems are needed to meet environmental standards and improve operating efficiency.
Geography
American Water’s business is overwhelmingly U.S.-based, with regulated utilities operating in 14 states and a customer footprint spanning 24 states. The company says it serves about 14 million people and has roughly 3.6 million active customers, which makes local state regulation and service-area demographics central to performance. Because water utilities are franchise-based and capital intensive, geography matters less for export exposure and more for state-by-state rate cases, acquisition opportunities and infrastructure needs. The company also has non-regulated operations serving U.S. military installations and municipalities, adding a smaller but strategically useful federal and local government exposure.
Risks
The company operates in a heavily regulated environment, so rate outcomes, compliance obligations and regulatory sanctions can materially affect returns. Its infrastructure is physically exposed to pipe failures, reservoir issues, dam repairs and contamination events, any of which can disrupt service and create large repair or liability costs. Water utilities are also vulnerable to weather patterns, supply chain disruptions, cybersecurity incidents and rising costs for chemicals, power and construction materials. Because growth depends partly on acquisitions, competition for systems from other utilities, municipalities and infrastructure buyers can limit expansion opportunities.
- Cybersecurity and data privacy riskImpact: HighLikelihood: High
Operational technology and customer systems are exposed to cyberattacks and unauthorized access.
Exposure: Service Company and utility operations
- Regulatory rate and compliance riskImpact: HighLikelihood: Medium
Revenue and returns depend on state PUC approvals, allowed rates and compliance with utility rules.
Exposure: Regulated Businesses
- Infrastructure failure and asset integrity riskImpact: HighLikelihood: Medium
The business relies on extensive pipes, mains, reservoirs and dams that can fail and require costly repair or replacement.
Exposure: Water and wastewater network assets
- Supply chain and input cost riskImpact: MediumLikelihood: High
Chemicals, pipe, valves, equipment, power and fuel are essential inputs and shortages or inflation can impair service and margins.
Exposure: Operations and capital projects
- Acquisition competition riskImpact: MediumLikelihood: Medium
Growth depends partly on buying systems, but other utilities, municipalities and infrastructure funds compete for the same assets.
Exposure: M&A pipeline
Accounting
Judgemental itemsUtility service is billed on cycles, so management estimates revenue earned but not yet billed at each reporting date.
Impact: Affects quarterly revenue, receivables and comparability across periods
The company carries substantial goodwill from acquisitions and must test it for recoverability.
Impact: Can create large non-cash charges if assumptions weaken
Certain financial instruments and assets are recorded at fair value and depend on market assumptions.
Impact: Can introduce volatility in reported earnings and balance sheet values
Rate recovery and capital investment timing affect how costs and investments are reflected in earnings.
Impact: Can shift income recognition and asset recovery across periods
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Last updated: 24/09/2026