How many employees does California Water Service Group have?

California Water Service Group reported 1,336 employees for the fiscal year ending Dec 2025, in the annual report it filed on February 27, 2026. That is up 4.5% from a year earlier.

What is California Water Service Group's revenue per employee?

California Water Service Group brought in $1.00B of revenue in fiscal Dec 2025, which is $749K per employee. That ranks 3 of 7 companies we track in Regulated Water, where the median is $734K.

Where do these numbers come from?

Employee counts and revenue are taken from each company's own annual report (Form 10-K). Open roles are counted from the company's public job board where we have matched one. Companies report headcount once a year, sometimes rounded, so small changes can be noise.

Company data

California Water Service Group employees and revenue per employee

CWT · Regulated Water · $2.84B market cap

California Water Service Group had 1,336 employees at the end of fiscal Dec 2025, up 4.5% from a year earlier. Revenue for the year was $1.00B, down 3.5% from a year earlier, or $749K per employee. Revenue fell while headcount grew.

Employees

1,336

+4.5% YoY

Revenue

$1.00B

-3.5% YoY

Revenue / employee

$749K

Peer median $734K

Rank in industry

3 of 7

Regulated Water

Headcount against revenue

Both lines start at 100 in the first year we hold, so you can see which one grew faster.

EmployeesRevenueIndexed to 100 in Dec 2016

Hover a year for the numbers.

CWT employees and revenue by fiscal year
Year ending	Employees	Revenue	Per employee	Staff YoY	Revenue YoY
Dec 2025	1,336	$1.00B	$749K	+4.5%	-3.5%
Dec 2024	1,278	$1.04B	$811K	+0.9%	+30.5%
Dec 2023	1,266	$795M	$628K	+3.3%	-6.1%
Dec 2022	1,225	$846M	$691K	+3.6%	+7.0%
Dec 2021	1,182	$791M	$669K	-0.8%	-0.4%
Dec 2020	1,192	$794M	$666K	-1.2%	+11.2%
Dec 2019	1,207	$715M	$592K	+1.9%	+2.3%
Dec 2018	1,184	$698M	$590K	+0.7%	+4.7%
Dec 2017	1,176	$667M	$567K	+1.1%	+9.4%
Dec 2016	1,163	$609M	$524K	—	—

Open roles: we have not matched a verified job board for this company yet.

Employees, last six fiscal years

Revenue per employee, last six fiscal years

California Water Service Group against similar companies

The closest industry peers by revenue, from Regulated Water.

Company	Employees	Revenue	Revenue / employee	Shape
HTO H2O America	837	$801M	$956K	Efficient growth
WTRG Essential Utilities, Inc.	3,303	$2.47B	$749K	Efficient growth
CWT California Water Service Group	1,336	$1.00B	$749K	Hiring into decline
AWK American Water Works Company, Inc.	7,000	$5.14B	$734K	Efficient growth
AWR American States Water Company	900	$658M	$731K	Efficient growth
YORW The York Water Company	129	$77.5M	$601K	Efficient growth
MSEX Middlesex Water Company	395	$195M	$493K	Hiring ahead

Every Utilities company

Questions about California Water Service Group

How many employees does California Water Service Group have?: California Water Service Group reported 1,336 employees for the fiscal year ending Dec 2025, in the annual report it filed on February 27, 2026. That is up 4.5% from a year earlier.
What is California Water Service Group's revenue per employee?: California Water Service Group brought in $1.00B of revenue in fiscal Dec 2025, which is $749K per employee. That ranks 3 of 7 companies we track in Regulated Water, where the median is $734K.
Where do these numbers come from?: Employee counts and revenue are taken from each company's own annual report (Form 10-K). Open roles are counted from the company's public job board where we have matched one. Companies report headcount once a year, sometimes rounded, so small changes can be noise.

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Compare CWT with the rest of the market

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Source: employee counts and revenue as stated in California Water Service Group's annual reports (Form 10-K), latest filed February 27, 2026. This is data, not a recommendation to buy or sell CWT.