American Water Works (AWK): Consolidating America’s Water Infrastructures

Water As Critical Infrastructure

A lot of the modern world is dependent on often forgotten infrastructures like roads, harbors, electric lines, etc. Another critical infrastructure is water, from collection to purification and treatment of wastewater.

Access to clean water is not just important for everyday life and keeping pollution under control; it is also an important resource vital to manufacturing, data centers, etc.

This is a sector that globally tends to be dominated by large companies, as economies of scale and network effects improve profitability, like with most infrastructure-focused activities.

However, this is less true in America, where the market is still highly fragmented, making it an opportunity for companies able to lead the consolidation of this market.

The largest regulated US water utility by market cap and customer base is American Water Works, bringing drinking water and wastewater services to approximately 14 million people with regulated operations in 14 states and on 18 military installations.

And the company is soon poised to merge with one of its largest competitors, becoming the uncontested king of the country’s water infrastructure.

Water Industry Overview

The global water market is worth $302B, and expected to grow at a steady 4.51% CAGR until 2030, reaching $430B.

The industry is overall divided between technology companies producing complex equipment used for water purification (like Xylem (XYL ) or Siemens Water Technologies – SIE.DE) and the utilities companies operating them to deliver the fresh water.

The two main driving forces of growth in the sector are urbanization and industrialization, with the strongest growth found in developing economies rapidly improving their (insufficient) water infrastructures and urbanizing at the same time.

Water scarcity is a growing problem in many regions of the world, driven by growing population, increasing demand, declining resources, and climate change.

Source: United Nation

This could severely impact global economic output, as areas facing high water risk will produce 46% of global GDP by 2050, to the point that the United Nations describes the situation as “Global Water Bankruptcy” in a 2026 report. The costs of global droughts alone have risen to approximately $307B annually.

Such water-related risks are extremely intense in Africa and the Middle East, but also in the USA, Mexico, Australia, and India, with depletion of underground aquifers an acute risk in many regions, including the American West.

Source: United Nation

Beside purification of fresh water into drinking water and cleaning of wastewater, a growing sector is desalination. This is an energy-intensive process, which can turn abundant but useless salty water into drinkable fresh water.

Another growing sector is the production of ultra-pure water for demanding industrial processes like chemicals or semiconductor manufacturing.

American Water Works Overview

American Water Works History

American Water Works was founded in 1886 in Pennsylvania. It was already one of the leading water companies in the country in 1914 when it became  American Water Works and Electric (AWW&E).

The company became a publicly listed company in 1947 and entered Fortune’s list of the 50 largest public utility companies in the United States in 1965.

In 2003, American Water Works was purchased by the German RWE Group before being divested again in 2005.

It went back to being a publicly listed company on the New York Stock Exchange in 2008, making it the largest utility IPO in U.S. history.

In 2016, American Water became part of Standard & Poor’s 500 Index and the only water utility included in the index. It is still today one of the highest valued utility stocks on the NYSE.

In 2003, American Water established the American Water Military Services Group. Through the Utilities Privatization (UP) Program, this section of the company has a 50-year contract to provide water and wastewater utility services at 18 military installations in the U.S.

American Water Works By The Numbers

The company employs 7,000+ people. It provides water-related services to approximately 14 million people with regulated operations in 14 states and on 18 military installations. This includes some of the largest states, like California, and more than 20% of the customers in states like Pennsylvania and New Jersey.

Source: American Water Works

Regarding services to military installations, there are a total of 70 other facilities that could be added to the current 18 facilities already working with American Water Works.

Despite these impressive numbers, the fact that the country’s largest utility is still only in control of a fraction of the market in the states where it has the largest presence illustrates that this is still a very fragmented market.

This could open space for more consolidation of the industry in the upcoming years.

“Acquisitions reshape the innovation landscape. Smaller municipal systems are increasingly pursuing mergers or partnerships as they confront rising operational costs, labour shortages and the technical demands of modern treatment and monitoring. ”

Source: World Economic Forum

American Water Works Growth

Growth Through Acquisitions

American Water Works is indeed growing in large parts through acquisitions of smaller water operations.

As a result, the company is targeting a much faster growth than the overall sector, with a target for 7-9% earning per share, and the same range for dividend growth.

Currently, the USA has 50,000+ different drinking water systems and 16,000+ wastewater systems. Fresh water systems are 16% investors owned and 84% public owned, while wastewater systems are 2% investors owned and 98% public owned.

The ideal acquisition target for American Water Works is a local utility with 5,000-50,000 customer connections, with a push for privatization and optimization of these operations.

For example, it announced an agreement to acquire a group of systems owned by Nexus Water Group in April 2025, adding ~46,600 customer connections in 8 states, and is acquiring Nitro West Virginia wastewater system, with 4,600 customer connections.

Acquisition is, however, not the only growth source for the company, as it, for example, organically added ~58,400 customer connections in Q1 2026.

Upcoming Merger With Essential Utilities

In October 2025, American Water Works announced its intention to merge with Essential Utilities (WTRG ). The merger will need approval from regulators in many US states, and is expected to close by the end of Q1 2027 if possible from a regulatory point of view.

This would create a company with an enterprise value of approximately $63B.

“Essential’s shareholders will receive 0.305 shares of American Water for each share of Essential they own. Upon completion of the merger, American Water shareholders will own approximately 69% and Essential shareholders will own approximately 31% of the combined company.”

The merger would expand the company’s activities in many of the states it already operates in, and bring the total to 17 states.

It will also add an industry-leading natural gas (LDC) utility, Peoples Natural Gas, in Pennsylvania and Kentucky, servicing 746,000 customers.

American Water Works Innovations

An Innovation-Driven Business

Water-focused utilities may seem to many investors as a “boring” sector, much less impacted by radical changes and innovations than the energy sector, dominated by the rise of renewables and the rebirth of the nuclear industry.

This is, however, not true, as both chemical and digital technologies are quickly changing how water utilities work.

It is especially true as water resources’ availability is declining and population growth is often occurring in already water-stressed regions, forcing water utility companies to find new ways to maximize production.

In addition, the building of ultra-large AI data centers will further increase water demand in the USA for the decade to come.

Source: American Water Works Association

The larger the data center, the more demanding its cooling requirement, usually managed through complex heat exchangers and ultimately achieved through water evaporation. This massive consumption also requires strict water quality.

“For incoming water to data centers, water with low scaling corrosion — typical for cooling systems — is ideal. Data centers may include their own pretreatment systems to maximize water use efficiency, guarantee consistent quality from a source prone to variation, or meet more stringent needs for advanced cooling methods.”

Embracing these innovations will be a lot easier for larger utility companies, as they have stronger financial capacity for R&D and the ability to then implement successful programs in all of their hundreds of different water stations throughout the country.

New Filtration Technologies

Historically, most water purification was achieved through the use of chlorine, UV light, or ozone generation, or a combination of these technologies, all focused on removing pollutants and biological contaminants through oxidation (Advanced Oxidation Processes – AOP).

In recent years, a new method has started to become more important: filtration.

Membrane-based water filtration techniques take advantage of the fact that simple ions and pure water are very small molecules, while pollutants or microbes are much larger, allowing the filter to separate them and create pure drinking water.

Source: Applied Water Science

New nanomaterials are helping create these more efficient high-capacity membranes and self-cleaning filters. Common types of filter materials include activated carbon, polypropylene, ceramic, resin, and titanium rods.

“Water quality regulations from agencies like EPA and WHO are becoming stricter, with maximum contaminant levels for lead, arsenic, and microplastics being revised downward. This regulatory pressure has compelled industries and municipalities to upgrade their Water Purification Filters systems, creating a $4.7 billion retrofit market in 2023 alone.”

Source: Intel Market Research

Helping Solve Forever Chemicals Pollution

New filtration systems are especially important to solve PFAS pollution (Per- and polyfluoroalkyl substances), or so-called “forever chemicals”.

The widespread use of PFAS in non-stick cookware, firefighting foam, and food packaging has led to their accumulation in soil and water. These chemicals have been linked to cancer, immune suppression, and reproductive problems.

The USA and many other nations are enacting new regulations about PFAS, prohibiting or limiting some of their use, and mandating the deployment of PFAS mitigation technology in water plants.

Granular activated carbon (GAC) and ion-exchange filtration technologies are especially useful for this taste, capturing the PFAS to remove them from drinking water or treated wastewater that would be released in the environment.

American Water has entered into a nine-year supply contract with Calgon Carbon to supply granular activated carbon, equipment, and reactivation services to >50 treatment sites across 10 states through 2033.

Dealing with PFAS will be a cost for American Water Works, but also a business opportunity, as the associated costs will be covered in the regulated price of water that the company depends on.

In addition, American Water is a party to the Multi-District Litigation (MDL) lawsuit against several PFAS manufacturers. In 2024, the MDL court approved settlements with DuPont, 3M, Tyco Fire Products LP, and BASF Corporation. More settlement money might be made later.

“As of December 31, 2025, the Company’s utility subsidiaries received settlement payments from defendants 3M and DuPont of ~$159M, collectively, net of legal fees and administrative costs. The Company intends to seek regulatory approval from its respective public utility commissions to apply the net proceeds for the benefit of customers.”

Alternative technologies to solve PFAS are emerging, such as Supercritical Water Oxidation (SCWO) and Electrochemical Oxidation. However, SCWO is more fit for dealing with highly contaminated water coming out of industrial sites and manufacturing processes, and electrochemical oxidation methods are still experimental.

Overall, high energy consumption and high capital costs, particularly for low-concentration water, are significant barriers to their adoption over filtration systems.

Digital Tech & AI

Besides new water treatment technologies, the business of utilities, be it water, electricity, or gas, is quickly digitalizing.

For example, American Water Works is deploying smart meters, outage alerts, online portals, and mobile-friendly billing to monitor consumption and facilitate payments.

It is also using SCADA (Supervisory Control and Data Acquisition) systems, sensors, and remote monitoring for flow, pressure, and quality, improving reliability and reducing leak and break incidence.

Meanwhile, AI and data-driven asset management methods are guiding equipment replacement, pump upgrades, and plant modernization based on condition, risk, and regulatory timelines.

This increases the efficiency of the company and helps it detect leaks or inefficient maintenance schedules that can lead to more costs or unexpected equipment failure.

Groundwater Management

A lot of the water resources in the American Southwest are dependent on underground aquifers that are under threat of depletion.

American Water Works’s Aquifer Storage and Recovery (ASR) program is there to capture excess winter flows and strategically replenish underground aquifers, for example, in California.

“Since the ASR season commenced on December 26, 2025, California American Water has captured over 240-acre feet of water (approximately 78 million gallons) and injected it into the Seaside Groundwater Basin for future use.”

So the same infrastructure that is able to pump water into the network during the dry season can be used to maximize the storage of freshwater in winter.

This sort of program demonstrates that the company cannot just be a producer of fresh water or recycler of wastewater, but also a key actor in managing an increasingly scarce resource.

In the long run, this might become an essential part of American Water Works business model, where it is in charge of managing in a sustainable way the country’s water resources.

American Water Works’ Future

Contrary to many other economic sectors of the USA, water utilities are still a highly fragmented one, with countless municipality managing their own water system, often with rather low efficiency, due to lacking the expertise and economies of scale of larger water utilities.

With an ongoing series of acquisitions of smaller water systems and the merger with Essential Utilities, American Water Works is set to become THE water utility in the country. The company has years or potentially decades of possible accretive growth from steadily pursuing more and more acquisitions and growing its presence in all of the US states.

The size of the company is not just an advantage regarding access to capital, or saving money on overhead and procurement of equipment. It is also crucial for the deployment of newer digital technologies and more efficient water purification methods.

Environmental regulations are getting stricter by the day, and chemical pollution that was tolerated in the past needs to be remediated, like with PFAS. So the capacity to adopt new

The growing size of American Water Works is turning into a key competitive advantage over smaller utilities, helping it provide fresh water to millions at a lower operating cost. It also raises the profile of the company with investors as a stable and “safe” company with a growing dividend and earnings.

Lastly, as a key partner to many military facilities, the company could also benefit from the growing military budget and the rebuilding of a larger Cold War-like armed forces in a context of growing geopolitical tensions.

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