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California Water Service Group revenue

California Water Service Group's revenue was $964m in fiscal 2025, up 6.4% on the year before. Since fiscal 2016 ($590m) it has grown at a compound 5.6% a year. Over the last twelve months it was $1.02bn.

Revenue history

US$ millions unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

Fiscal year2016Dec 20162017Dec 20172018Dec 20182019Dec 20192020Dec 20202021Dec 20212022Dec 20222023Dec 20232024Dec 20242025Dec 2025LTMSept 2026
Revenue5906226756646987667737909069641,017
Growth on the year before—+5.6%+8.4%−1.5%+5.0%+9.8%+0.9%+2.3%+14.6%+6.4%—

Revenue as reported in the company's 10-K and 10-Q filings (for banks, net interest income plus non-interest income). Growth is left blank when the earlier figure was zero or negative.

Where the revenue comes from

Fiscal year to December 31, 2025
Products and services
Line of business Revenue YoY
Residential $567M ▲ 5.4%
Business $193M ▲ 7.0%
Multiple Residential $84M ▲ 9.3%
Public Authorities $54.7M ▲ 11.2%
Other services $34.1M ▲ 10.2%
Industrial $31M ▲ 1.9%
Non Regulated Services $18.4M ▲ 1.2%
Operating and Maintenance $13.7M ▼ 0.6%
Other Non Regulated Service $4.7M ▲ 7.0%

These categories overlap or exclude eliminations, so shares aren't shown.

From California Water Service Group's 10-K filed February 27, 2026, as tagged in the filing. View filing. Indented rows are part of the line above; their share is of that line. In the bars, the faint bar behind is the year before.

Revenue against peers

Water Utilities: the closest covered companies by revenue. Last twelve months.

CompanyRevenueGrowth3-year growth a year
California Water Service Group $1.02bn 4.8% 9.7%
H2o America $838m 4.2% 7.7%
American States Water Co $697m 13.2% 6.4%
Essential Utilities, Inc. $2.57bn 9.9% 3.7%
Middlesex Water Co $212m 8.9% 8.4%
American Water Works $5.34bn 5.4% 8.9%

Compare with peers

Head to head: CWT vs HTOAWR vs CWTCWT vs WTRGAWK vs CWT

More: Water Utilities stocks compared, Utilities sector, rankings of US companies

Figures from California Water Service Group's SEC filings (10-K and 10-Q), retrieved October 30, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to California Water Service Group.