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American Water Works Company vs California Water Service: AWK and CWT compared
American Water Works Company is the larger company: $1.5B of revenue in its latest quarter (Q3 2026) against $331M for California Water Service (Q3 2026). California Water Service is growing faster (+5% against +4% a year earlier). American Water Works Company is more profitable, with an operating margin of 42.5% against 25.0%.
Where the money goes: AWK and CWT
American Water Works Company (AWK) · Q3 2026
American Water Works Company, Q3 2026: revenue $1.5B (+4% year over year), operating margin 42.5%, net earnings $387M, operating cash flow $728M. The chart follows the revenue to costs, profit and cash.
California Water Service (CWT) · Q3 2026
California Water Service, Q3 2026: revenue $331M (+5% year over year), operating margin 25.0%, net earnings $65.4M, operating cash flow $149M. The chart follows the revenue to costs, profit and cash.
| American Water Works Company (AWK) | California Water Service (CWT) | |
|---|---|---|
| Latest quarter | Q3 2026 | Q3 2026 |
| Revenue | $1.5B | $331M |
| Revenue growth, Y/Y | +4% | +5% |
| Operating margin | 42.5% | 25.0% |
| Net earnings | $387M | $65.4M |
| Net margin | 25.6% | 19.7% |
| Operating cash flow | $728M | $149M |
| Market value | $29.8B | $3.0B |
| P/E | 25.9× | 21.7× |
| Analysts’ mean target | $141.09 | $54.75 |
Where the revenue comes from
California Water Service
- Residential: $197M (59%)
- Business: $61.3M (19%)
- Multiple residential: $24.8M (8%)
- Public authorities: $20.4M (6%)
Questions
Which is bigger, American Water Works Company or California Water Service?
American Water Works Company is the larger company: $1.5B of revenue in its latest quarter (Q3 2026) against $331M for California Water Service (Q3 2026).
Is American Water Works Company or California Water Service growing faster?
California Water Service is growing faster (+5% against +4% a year earlier).
Which is more profitable, American Water Works Company or California Water Service?
American Water Works Company is more profitable, with an operating margin of 42.5% against 25.0%.
More: American Water Works Company earnings · how American Water Works Company makes money · California Water Service earnings · how California Water Service makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Oct 28, 2026; 10-Q filed Oct 29, 2026). Fiscal quarters can end on different dates. Not investment advice.