Top DoD water supply and irrigation systems contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $430.6M in net prime contract dollars under NAICS 221310, down 30.8% from $622.7M in the preceding 12 months. 139 prime contractors received positive obligations, and 12 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD contractors for NAICS 221310
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | American Water Operations and Maintenance, LLC | $116.7M | $135.2M | 27.1% | — |
| 2 | American Water Military Services, LLC | $42.3M | $47.1M | 9.8% | ▲ 1 |
| 3 | OLD North Utility Services, Inc. | $27.5M | $37.8M | 6.4% | ▲ 2 |
| 4 | ch2m Hill Constructors, Inc. | $26.0M | $41.9M | 6.0% | — |
| 5 | Oklahoma City Water Utilities Trust | $23.8M | $31.8M | 5.5% | ▲ 1 |
| 6 | Emerald Coast Utility Services Inc | $20.5M | $20.0M | 4.8% | ▲ 5 |
| 7 | Schutt Industries of Clintonville, WIS., Inc. | $20.1M | $7.4M | 4.7% | ▲ 11 |
| 8 | American Water Enterprises, LLC | $14.7M | $16.0M | 3.4% | ▲ 5 |
| 9 | Base Utilities Inc | $14.5M | $13.8M | 3.4% | ▲ 5 |
| 10 | Fort Riley Utility Services, Inc. | $14.5M | $17.3M | 3.4% | ▲ 2 |
| 11 | Fort Bliss Water Services Company | $14.3M | $22.3M | 3.3% | ▼ 2 |
| 12 | Augusta-Richmond County Government | $11.0M | $22.6M | 2.6% | ▼ 4 |
| 13 | Central Coast Water Authority | $9.7M | $7.9M | 2.2% | ▲ 4 |
| 14 | Foreign Utility Consolidated Reporting | $8.6M | $3.4M | 2.0% | ▲ 15 |
| 15 | Terrapin Utility Services, Inc. | $7.1M | $6.7M | 1.7% | ▲ 5 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Schutt Industries of Clintonville, WIS., Inc.$7.4M → $20.1M (+$12.7M) · now #7
- Foreign Utility Consolidated Reporting$3.4M → $8.6M (+$5.2M) · now #14
- SES Energy Services LLC$3.9M → $5.6M (+$1.7M) · now #17
Largest declines
- Ahtna USA-CDM JV$51.0M → $2.7M (−$48.2M) · now #25
- Bering-Weston JV, LLC$28.5M → $2.3M (−$26.2M) · now #27
- American Water Operations and Maintenance, LLC$135.2M → $116.7M (−$18.5M) · now #1
New to this market
32 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Daiichi Bussan Co., Ltd. | Jun 3, 2026 | $299K |
| Cedarville Engineering Group LLC | Aug 24, 2026 | $167K |
| Wamo Constructors Cooperation | Apr 14, 2026 | $86K |
| Manfred göbel E. KFM., INH. Steffen Stein | Apr 15, 2026 | $60K |
| Water Medic Inc | Feb 2, 2026 | $57K |
| Groundwater Resources LLC | Jun 15, 2026 | $30K |
| Empower Excellence, LLC | Dec 8, 2025 | $30K |
| Town of Fort Peck | Mar 19, 2026 | $24K |
Where the money comes from
Funding sub-agencies within the Department of Defense, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Department of the Army | $287.9M | $459.0M | Down $171.1M (37.3%) |
| Department of the Air Force | $141.9M | $159.9M | Down $17.9M (11.2%) |
| Department of the Navy | $557K | $3.3M | Down $2.7M (82.9%) |
| Immediate Office of the Secretary of Defense | $86K | $8K | Up $78K (975.7%) |
| Defense Health Agency | $74K | $382K | Down $308K (80.6%) |
| Defense Logistics Agency | $27K | $79K | Down $52K (65.5%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| DABK3503C0005 | American Water Enterprises, LLC 200309!000330!2100!BK35 !ACA, FORT SILL !DABK3503C0005 !A!N! !N! !20030529!20030602!615308814!615308814!615308814!N!AMERICAN WATER SERVICES, INC !10000 SAGEMORE DRIVE,… | $36.2M | Dec 31, 2026 |
| W9124923C0006 | Augusta-Richmond County Government POTABLE WATER / WASTE WATER | $11.0M | Dec 31, 2026 |
| W9124L25CA011 | American Water Enterprises, LLC FORT SILL WATER- NEW CONTRACT DUE TO UNSUCCESSFUL MIGRATION OF CURRENT CONTRACT DABK3503C0005 TO ARMY CONTRACT WRITING SYSTEM (ACWS). | $12.9M | Dec 31, 2026 |
| W912CH25F0345 | GTA Containers, LLC WATER STORAGE DISTRIBUTION SYSTEM (WSDS) DELIVERY ORDER TO FUND CLIN 4002 - FOURTH ORDERING YEAR. | $2.3M | Feb 4, 2027 |
| W56HZV23F0293 | GTA Containers, LLC WATER STORAGE DISTRIBUTION SYSTEM PRODUCTION | $2.2M | Feb 4, 2027 |
| W912CH25F0015 | Schutt Industries of Clintonville, WIS., Inc. WATER BISON FIRST DELIVERY ORDER W912CH25F0015 UNDER CONTRACT W912CH25D0003 TO CALL UP AND FUND FY25 HARDWARE (77 SYSTEMS, CDRLS, PQT). | $7.4M | Feb 26, 2027 |
| W9124J25F0023 | ch2m Hill Constructors, Inc. WATER FIXED MONTHLY SERVICE CHARGES O&M | $24.8M | Mar 31, 2027 |
| FA461026F0115 | Central Coast Water Authority CCWA INVOICE | $8.7M | May 31, 2027 |
| W56HZV24F0065 | GTA Containers, LLC 13&P MANUAL INCLUDING RPSTL FOR | $2.9M | Jul 22, 2027 |
| W912CH26F0200 | Schutt Industries of Clintonville, WIS., Inc. WATER BISON SYSTEM (BISON) IS A 10 YEAR REQUIREMENTS CONTRACT, THIS DELIVERY ORDER IS IN ORDERING YEAR 2 AND FUNDS 276 BISON SYSTEMS. | $20.1M | Feb 29, 2028 |
Common questions
Who are the top DoD contractors for NAICS 221310?
In the latest 12 months, American Water Operations and Maintenance, LLC ($116.7M), American Water Military Services, LLC ($42.3M), OLD North Utility Services, Inc. ($27.5M) received the most DoD obligations for water supply and irrigation systems.
How concentrated is this market?
The eight largest primes held 67.7% of positive obligations, and American Water Operations and Maintenance, LLC alone held 27.1%. 32 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 221310 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is DABK3503C0005 (American Water Enterprises, LLC, $36.2M obligated), ending Dec 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$6.9MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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