6.2.7Segment

Water & Wastewater Utilities

Water and wastewater utilities treating and distributing potable water and collecting and treating sewage.

4
Verticals

Overview

Water & Wastewater Utilities covers the supply of drinking water and the treatment of wastewater. The investor-owned segment (~$19B in Census-tracked revenue) is led by water majors (American Water, Essential Utilities/Aqua, California Water), but the vast majority of U.S. water service is provided by thousands of municipal systems largely outside this figure.

Demand and investment are driven by aging water infrastructure, regulatory mandates (lead-pipe replacement, PFAS treatment), and the renewal of underinvested systems. The defining trend is consolidation — investor-owned utilities acquiring small, struggling municipal systems that cannot fund needed upgrades. It is a stable, regulated, and actively consolidating segment.

Market snapshot

Market size
~$19B
Growth
~7.1%CAGR (2017–22, nominal)
Companies
~3,926 firms
Firms by employee count

92.7% of firms have fewer than 20 employees: 3,638 micro-businesses, below most mandates.

The investable universe288 firms with 20+ employees
20–99
18564%
100–499
5920%
500+
4415%

The most fragmented utility class in the country and the most acquisitive — tens of thousands of small systems face tightening treatment standards with no rate base to fund them, and selling to an investor-owned platform is often the only way to finance compliance. That regulatory pressure, not demand growth, is what drives deal flow here.

NAICS 221310, 221320. U.S. Census Bureau — 2022 Statistics of U.S. Businesses; U.S. Census Bureau — 2022 Economic Census.

Business model & economics

Revenue model

Regulated rate-base returns on water/wastewater service

Key economics

Revenue per firm
$4,762,971
Revenue per employee
$345,473
Employees per firm
11.9
Recurring revenue
High

recurring, non-discretionary water service

EBITDA margin
Stable, regulated returns
Capex intensity
High

Characteristics

  • Scale-driven — payroll is only 19% of revenue; the cost base is assets, not headcount
  • Moderate strategic-buyer pool — 44 firms exceed 500 employees; a scaled asset has buyers, but not many
  • Investor-owned leaders (American Water, Essential, Cal Water).
  • Aging infrastructure, lead-pipe, and PFAS mandates.
  • Consolidation of struggling municipal systems.

NAICS 221310, 221320. U.S. Census Bureau — 2022 Statistics of U.S. Businesses; U.S. Census Bureau — 2022 Economic Census.

Geographic concentration

AlabamaAlaskaArizonaColoradoFloridaGeorgiaIndianaKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth DakotaOklahomaPennsylvaniaSouth DakotaTexasWyomingConnecticutMissouriWest VirginiaIllinoisArkansasCaliforniaDelawareDistrict of ColumbiaHawaiiIowaKentuckyMarylandMichiganMontanaNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontRhode IslandNew MexicoMississippiLouisiana

Mississippi's concentration is the most extreme in the sector at eleven times the national rate, with New Mexico and Louisiana behind it. These are states served by very large numbers of small rural water associations — precisely the systems now facing treatment standards their rate base cannot fund, and the reason consolidation pressure is highest here.

MississippiNew MexicoLouisiana

U.S. Census Bureau — 2022 Statistics of U.S. Businesses (firms by state), NAICS 221310/221320. Concentration shown by location quotient.

M&A deal context

Deal activityHigh

Who’s acquiring

  • Investor-owned water utilities
  • Infrastructure funds & investors
  • Municipal-system consolidators

What’s driving deals

  • Roll-up of small municipal water systems.
  • Lead-pipe, PFAS, and infrastructure-renewal capex.
  • Rate-base growth and regulated returns.

Verticals in this segment

Find Water & Wastewater Utilities acquisition targets

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