Wastewater Treatment & Disposal: Market Size & Forecast 2026

The global wastewater treatment and disposal market sits at approximately USD 425 billion in 2025 (base year), with a 7-year forward CAGR of 6.2% carrying the category to roughly USD 648 billion by 2032. The category is structurally tight on the equipment-supply side (Xylem, Pentair, Evoqua/Water Tech, Sulzer) and structurally balanced on the operating-service side (Suez, Veolia, American Water, Maynilad, Stericycle-under-Waste-Management), with the dominant cost line being municipal energy rather than treatment chemicals. Service revenue tracks at roughly 80% of the category spend and equipment/chemicals at the remaining 20%, but the operating-services segment carries the regulatory and operating-risk load while the equipment-and-chemicals segment carries the supply-chain risk load. > **Analyst Take. Our view: the category's service-revenue tilt is the under-priced fact. Equipment suppl

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