Top State Department water supply and irrigation systems contractors
In the 12 months ending Oct 5, 2026, the Department of State obligated $6.9M in net prime contract dollars under NAICS 221310, down 60.6% from $17.4M in the preceding 12 months. 39 prime contractors received positive obligations, and 8 of them accounted for 80% of that spend.
Prime contracts funded by the Department of State. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top State Department 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 | G.S.E. Construction Company, Inc. | $1.8M | $0 | 25.6% | New |
| 2 | Forte Insurance (Cambodia) PLC | $1.4M | $1.2M | 20.0% | ▲ 1 |
| 3 | Miscellaneous Foreign Awardees | $1.0M | $1.1M | 14.5% | ▲ 1 |
| 4 | Fluid Solutions LLC | $561K | $968K | 8.1% | ▲ 1 |
| 5 | City of SAN Diego | $395K | $0 | 5.7% | New |
| 6 | Davchem East Africa Limited | $166K | $165K | 2.4% | ▲ 4 |
| 7 | Excel Marketing Services Inc | $160K | $55K | 2.3% | ▲ 15 |
| 8 | B. David Co Inc | $132K | $158K | 1.9% | ▲ 3 |
| 9 | Mayfort Milling Company Private Limited | $121K | $598K | 1.7% | ▼ 3 |
| 10 | Chem-Aqua Mexico | $118K | $0 | 1.7% | New |
| 11 | Simu Construction Ltd | $113K | $0 | 1.6% | New |
| 12 | s4 Water Sales and Service, LLC | $103K | $43K | 1.5% | ▲ 15 |
| 13 | Liberty Utilities (Litchfield Park Water & Sewer) Corp. | $84K | $69K | 1.2% | ▲ 3 |
| 14 | Greentech USA LLC | $83K | $11K | 1.2% | ▲ 36 |
| 15 | Dream Supply (Private) Limited | $70K | $0 | 1.0% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- G.S.E. Construction Company, Inc.$0 → $1.8M (+$1.8M) · now #1
- City of SAN Diego$0 → $395K (+$395K) · now #5
- Forte Insurance (Cambodia) PLC$1.2M → $1.4M (+$238K) · now #2
Largest declines
- H&S Water and Waste Water Design and Consultancy Services$7.8M → $0 (−$7.8M) · no latest-period obligations
- Epik-Aquashine JV LLC$3.1M → $0 (−$3.1M) · no latest-period obligations
- Mayfort Milling Company Private Limited$598K → $121K (−$477K) · now #9
New to this market
11 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| G.S.E. Construction Company, Inc. | Sep 28, 2026 | $1.8M |
| City of SAN Diego | Feb 17, 2026 | $395K |
| Chem-Aqua Mexico | Aug 6, 2026 | $118K |
| Simu Construction Ltd | Jun 10, 2026 | $113K |
| Dream Supply (Private) Limited | Apr 27, 2026 | $70K |
| RNK International, Inc. | Sep 9, 2026 | $54K |
| C.C. Sanitaire S.a.r.l | Jan 30, 2026 | $45K |
| Protech Group LLC | May 6, 2026 | $33K |
Where the money comes from
Funding sub-agencies within the Department of State, 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 State | $4.6M | $17.0M | Down $12.4M (73.0%) |
| International Boundary and Water Commission: U.S.-Mexico | $2.3M | $433K | Up $1.8M (423.8%) |
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 |
|---|---|---|---|
| 19GE5025C0081 | Epik-Aquashine JV LLC DESIGN/BUILD CONSTRUCTION SERVICES - WASTEWATER TREATMENT SYSTEM UPGRADES AND REPLACEMENT PROJECT, U.S. EMBASSY MANILA, PHILIPPINES. | $3.1M | Nov 4, 2026 |
| 191BWC26P0090 | G.S.E. Construction Company, Inc. HEADWORKS REPAIR | $1.8M | Sep 30, 2027 |
Common questions
Who are the top State Department contractors for NAICS 221310?
In the latest 12 months, G.S.E. Construction Company, Inc. ($1.8M), Forte Insurance (Cambodia) PLC ($1.4M), Miscellaneous Foreign Awardees ($1.0M) received the most State Department obligations for water supply and irrigation systems.
How concentrated is this market?
The eight largest primes held 80.4% of positive obligations, and G.S.E. Construction Company, Inc. alone held 25.6%. 11 contractors won their first obligations in this market during the latest 12 months.
Are any large State Department NAICS 221310 contracts ending soon?
2 of the largest awards in this market reach their current end date in the next 18 months. The first is 19GE5025C0081 (Epik-Aquashine JV LLC, $3.1M obligated), ending Nov 4, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$9.9MFigures 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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