California Water Service Co
San Jose, CA Doing business as California Water Services Part of California Water Service Group
- UEI
- U2JFL97EMTL2
- CAGE
- 1K4R0
- Primary NAICS
- 221310 Water Supply and Irrigation Systems
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
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Its parent company, California Water Service Group, ranks:
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
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Parent
SVNKYXLA8D28
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- Hawaii Water Service Company, Inc. · Waikoloa Village, HI EHSRYLGVCKX1
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Parent
SVNKYXLA8D28
- SAM.gov registration date
- Physical address
- 1720 N 1st St, San Jose, CA 95112, USA
- Website
- calwater.com
- Founded
- 1926
- Employees
- 1K-5K
- Estimated annual revenue
- $500M-$1B
- Industry
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- Utilities
- SIC code
- 49 Electric, Gas, & Sanitary Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $3,522,462 |
| FY2025 | $3,572,815 |
| FY2024 | $4,601,264 |
| FY2023 | $2,909,258 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Air Force | $3,514,127 | |
| 2 | Department of the Interior | $8,335 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Grant awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| The california water service (CAL water) will implement a lawn to garden turf conversion rebate program to promote… | Bureau of Reclamation | $798,910 |
Grant subawards
| Prime recipient | Prime award | Amount | Awarded |
|---|---|---|---|
| New Mexico Finance Authority | 02F42404 | $4,481,512 | |
| New Mexico Finance Authority | 02F42403 | $5,610,376 | |
| New Mexico Finance Authority | 02F42402 | $18,903 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Sacramento Suburban Water District | Sacramento, CA | 221310 Water Supply and Irrigation Systems |
| San Francisco Public Utilities Commission | San Francisco, CA | 221310 Water Supply and Irrigation Systems |
| Western Municipal Water District Of Riverside County | Riverside, CA | 221310 Water Supply and Irrigation Systems |
| Trabuco Canyon Water District | Trabuco Canyon, CA | 221310 Water Supply and Irrigation Systems |
| Sonoma County Water Agency | Santa Rosa, CA | 221310 Water Supply and Irrigation Systems |
About the company
California Water Service Co, doing business as California Water Services, is a San Jose-based regulated water utility and subsidiary of California Water Service Group that provides essential water-related services to federal agencies. As a for-profit corporate entity registered in SAM.gov since December 2001, the company has established itself as a qualified federal contractor capable of competing in open bidding processes across multiple government agencies. The company's federal portfolio demonstrates its expertise in delivering water infrastructure services and supporting federal facility operations through both contract and grant mechanisms.
California Water Service Co has secured three prime federal contract awards totaling approximately $304,074 across multiple federal agencies. The most recent award was a $169,801.80 firm fixed-price purchase order from the Defense Contract Management Agency, effective September 1, 2025, through August 31, 2035, for water services supporting operations in Carson, California. The company also received a $94,487.36 purchase order from the U.S. Forest Service dated July 14, 2024, with a completion date of August 21, 2024, for land rental services at multiple forest locations identified as S29 Trout and S326 Borel sites. Additionally, California Water Service Co was awarded a $39,785.00 purchase order from the Department of the Interior's Bureau of Reclamation on August 4, 2023, for water service supporting the MPCO project through August 31, 2028. All three contracts were awarded without set-aside designations, reflecting the company's competitive standing in unrestricted federal procurement processes.
California Water Service Co has received one prime federal grant award through the Department of the Interior's Bureau of Reclamation WaterSMART program. The $798,910 project grant, awarded on August 15, 2023, with a completion date of September 30, 2026, funds the implementation of a Lawn to Garden Turf Conversion Rebate Program designed to promote water conservation across five of the company's service districts in Bakersfield, Marysville, Oroville, Selma, and Visalia. The initiative targets the conversion of up to 195,000 square feet of high-water-use turfgrass to drought-tolerant, California-friendly landscapes, with expected annual water savings of 16 acre-feet. The conserved water will be allocated to meet commercial and residential demands within the participating districts, demonstrating the company's alignment with federal water conservation objectives and sustainable resource management goals.
Quick answers
Is California Water Service Co registered in SAM.gov?
Yes. California Water Service Co's SAM.gov registration is active through December 12, 2026.
How much has California Water Service Co received in federal contracts?
Federal contracts obligated $3,572,815 to California Water Service Co in fiscal year 2025 and $14,605,799 in fiscal years 2023 through 2027.
How does California Water Service Co rank among federal contractors?
California Water Service Co's parent company, California Water Service Group, ranked #22 in PSC S114, #26 in NAICS 22131 and #38 in NAICS 2213 in FY2025.
What is California Water Service Co's most recent federal award?
California Water Service Co's most recent federal contract award is Water services for carson, CA (S5121A25PE005), from Defense Contract Management Agency, on September 1, 2025.
On GovTribe
See California Water Service Co's full federal record
- Federal contract awards
- Federal grant awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors