NAICS 221310 — WATER SUPPLY AND IRRIGATION SYSTEMS
Federal contract awards classified under NAICS code 221310 (WATER SUPPLY AND IRRIGATION SYSTEMS) cover 518 unique federal contracts (583 total action records) from USASpending.gov. The top contractors, awarding agencies, and geographic concentration below are aggregated from the highest-value awards in this market — the right view for sizing competition and identifying incumbents.
Top Contractors in NAICS 221310
Largest recipients of federal contract dollars in this NAICS code (ranked by total obligated value). These are the incumbent competitors to know if you sell into this market.
| Contractor | Awards | Total Obligated |
|---|---|---|
| AMERICAN WATER OPERATIONS AND MAINTENANCE, LLC | 9 | $1.7B |
| AMERICAN WATER MILITARY SERVICES, LLC | 2 | $222.0M |
| EMERALD COAST UTILITY SERVICES INC | 1 | $169.5M |
| AUGUSTA-RICHMOND COUNTY GOVERNMENT | 1 | $163.5M |
| FORT RILEY UTILITY SERVICES INC | 1 | $144.4M |
| OKLAHOMA CITY WATER UTILITIES TRUST | 1 | $134.5M |
| FLORIDA GOVERNMENTAL UTILITY AUTHORITY | 1 | $118.8M |
| BOARD OF WATER COMMISSIONERS OF COLUMBUS | 1 | $116.7M |
| FORT BLISS WATER SERVICES COMPANY | 1 | $111.5M |
| AMERICAN WATER ENTERPRISES, LLC | 2 | $110.7M |
Top Awarding Agencies
Federal agencies that obligate the most spending in NAICS 221310. Click any agency to see its full contract portfolio, top contractors, and sub-agencies.
| Agency | Awards | Total Obligated |
|---|---|---|
| Department of Defense | 110 | $3.6B |
| Department of Health and Human Services | 16 | $66.3M |
| National Aeronautics and Space Administration | 10 | $28.0M |
| Department of Veterans Affairs | 98 | $25.7M |
| Department of Justice | 66 | $22.1M |
| Department of the Interior | 54 | $9.1M |
| Department of Agriculture | 14 | $5.1M |
| Department of the Treasury | 12 | $2.9M |
| Department of Energy | 5 | $2.5M |
| National Archives and Records Administration | 8 | $2.4M |
Geographic Concentration
States where NAICS 221310 contract work is performed, ranked by total obligated value. Useful for sizing the local market and identifying state-level competitors.
| State | Awards | Total Obligated |
|---|---|---|
| TX | 25 | $544.5M |
| MD | 11 | $518.9M |
| LA | 9 | $350.9M |
| FL | 14 | $303.2M |
| VA | 20 | $293.4M |
| GA | 16 | $282.7M |
| KS | 9 | $146.1M |
| OK | 6 | $143.0M |
| WA | 6 | $119.6M |
| UT | 10 | $112.8M |
Most Recent Awards
RED LAKE BAND OF CHIPPEWA INDIANS
POTABLE WATER SERVICES
I-2-I SOLUTIONS, INC.
HINES RESPONSIBLE WATER OPERATOR ( BASE)
HERLONG PUBLIC UTILITY DISTRICT
FY26 DOMESTIC WATER SERVICE FEB AND MAR FY26 $25357.42 EACH
VIRGINIA WATER SYSTEMS, INC.
WATER SYSTEMS MAINTENANCE
VENERGY GROUP LLC
WATER CHEMICAL TESTING AND CONSULTATION SERVICES PERIOD OF PERFORMANCE 11/1/2025-12/31/2025
All Unique Contracts in NAICS 221310
Showing 518 unique contracts (one entry per PIID, deduped from modifications) sorted by total dollars obligated.
CITY OF DANBURY CT
WATER AND WASTEWATER UTILITY SERVICE FOR FCI DANBURY FOR FY2025
HAMPTON ROADS SANITATION DISTRICT
NASA LANGLEY RESEARCH CENTER SEWAGE WASTE SERVICE WITH HAMPTON ROADS SANITATION DISTRICT.
JUNGBU WATER SUPPLY OFFICE
SEWAGE SERVICE FOR USAG YONGSAN FROM 1 NOV. 2025 TO 31 JAN. 2026.
TOWN OF ALDERSON
FY25 P4 TOWN OF ALDERSON WATER AND SEWER QTR2 FY25 CONTRACT #DJPB010100000061
AVIATE ENTERPRISES, INC.
WATER CHEMICAL TREATMENT AND SERVICES
PUBLIC SERVICE COMMISSION OF YAZOO CITY
WATER AND SEWER UTILITY SERVICE FOR FCI YAZOO CITY POP: OCT. 1, 2025 - JAN. 31, 2026 (CR) CONTRACT #15B31519D00000049 ESTABLISHED UTILITIES CONTRACT
STAUBACH BARROR WATER SYSTEMS INC
PM FOR AMERI WATER MEDIQA 24 HEMODIALYSS SYSTEM, TWO AMERI WATER MROS RO+ PORTABLE RO UNITS, 2 OUTSET MODEL TABLO HEMODIALYSIS SYSTEMS AND 26 B BRAUN DIALOG + EVOLUTION HEMODIALYSIS MACHINES INCLUDES MONTHLY WATER TESTING IN STERILE PROCESSING DEPT.
KLENZOID INC
VA-BHHCS MAINTENANCE & SERVICE OF VA HOT SPRINGS, SD CAMPUS WATER TREATMENT
DAVIS WATER SERVICE INC
EMERGENCY WATER SUPPLY - FORT MCPHERSON
CABIN CREEK SERVICES LLC
WATER TREATMENT PLANT OPERATORS FOR CROW AGENCY
ROSS COUNTY WATER COMPANY, INC.
FY26 - FY30 CONTRACT WITH BASE + 4 OPTION YEARS WITH ROSS COUNTY WATER FOR CHILLICOTHE VAMC
COLUMBIANA COUNTY
COLUMBIANA COUNTY SEWER SERVICES FY25
NEU-ION, INC.
REVERSE OSMOSIS (RO) SYSTEM WATER SERVICE/ MAINTENANCE.
PYEONGTAEK-SI WATER AND SEWAGE BUSINESS PLACE
WATER SERVICE FOR CAMP HUMPHREYS 1 DECEMBER 2025 THRU 31 JANUARY 2026
NAVAJO TRIBAL UTILITY AUTHORITY
NATURAL GAS, WATER & WASTEWATER UTILITY SERVICES FOR CPSU
PYEONGTAEK-SI WATER AND SEWAGE BUSINESS PLACE
SEWAGE SERVICE FOR CAMP HUMPHREYS 1 DECEMBER 2025 THRU 31 JANUARY 2026
COLUMBIANA COUNTY
WATER SERVICES FOR FCI ELKTON FOR FY24
CITY OF SIMI VALLEY
WATER AND SEWER CONTRACT AT THE RONALD REAGAN PRESIDENTIAL LIBRARY.
RLM GOVERNMENT SERVICES LLC
NEPHROS FILTERS & QUARTERLY PM - INCLUDE REPLACEMENT SINK POP: 06/30/2025 - 06/29/2030 - (BASE PLUS FOUR OPTION YEARS)
ROSALES DANIEL
HVAC INDUSTRIAL WATER TREATMENT
ESSENTIAL UTILITIES, INC.
AQUA AMERICA
CITY OF PHILADELPHIA DEPARTMENT OF REVENUE WATER REVENUE BUREAU B0610658047
PWD WATER SUPPLY CONTRACT RENEWAL
COASTLINE LTD.
PROVIDE ALL SERVICES TO PERFORM WATER TREATMENT USING COMPREHENSIVE INDUSTRIAL WATER TREATMENT CHEMICALS AND TECHNICAL SERVICE TO PROTECT THE WATER COOLING TOWERS FOR BUILDINGS LOCATED AT JBMDL, NJ.
ENVIROH20 LLC
NTX REVERSE OSMOSIS MAINTENANCE SERVICE
D & H ENTERPRISES LLC
AL-EUFAULA NWR-DQ126-REHAB INLET PUMP