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Subcontracting in NAICS 221320: Sewage Treatment Facilities

Large federal prime contractors must adopt a small-business subcontracting plan on contracts above $900,000 ($2 million for construction) under FAR 19.702, with goals for small, women-owned, HUBZone, veteran-owned and service-disabled veteran-owned businesses. SBA's directory lists 7 primes with such plans on 15 contracts in NAICS 221320 (FY2023 and FY2024), 8 of them still active, with $287,127,614 in total contract value. These are the companies to approach about subcontracting work in this industry.

221320 size standard · how to find teaming partners

Open subcontracting opportunities (SBA SubNet)

Opportunity	Prime / company	NAICS	Place	Closes
Sioux City Wastewater Treatment Plant Facility Plan - Phase 1 Improvements Project ↗ Planned improvements shall include preliminary treatment building upgrades (mechanical screen replacement, grit…	Rice Lake Construction Group	221320	Iowa	Oct 28, 2026

Contact details are on each SBA SubNet listing. Ask questions to the listed contact, not SBA.

Prime contractors with subcontracting plans

Sorted by the value of active contracts. Look up each prime's small-business or supplier diversity page and register in its supplier portal.

Prime contractor	Location	Contracts (active)	Contract value	Main agencies	Latest end
Florida Keys Aqueduct Authority	Key West, Florida	1 (1)	$131,998,961	Defense Logistics Agency	Oct 25, 2065
American Water Military Services, LLC Parent: American Water Works Company Inc.	Camden, New Jersey	2 (2)	$39,767,114	Defense Logistics Agency	Feb 28, 2073
American States Utility Services, Inc. Parent: American States Water Company	San Dimas, California	1 (1)	$39,134,335	Defense Logistics Agency	Mar 31, 2074
Aqua Engineers, Inc. Parent: Aqua Engineers Inc.	Kalaheo, Hawaii	2 (2)	$24,671,676	Defense Logistics Agency	Sep 29, 2058
Old Dominion Utility Services Incorporated Parent: Old Dominion Utility Services Inc.	Fort Eustis, Virginia	2 (2)	$19,824,584	Defense Logistics Agency	Apr 2, 2056
Veolia Water West Operating Services Inc Parent: Veolia Water North America-West LLC	Boston, Massachusetts	6 (0)	$27,030,668	International Boundary and Water Commission: U.S.-Mexico	Sep 30, 2025
Perc Water Corp Parent: Perc Water Corporation	Fountain Valley, California	1 (0)	$4,700,276	Dept of the Air Force	Sep 30, 2023

About this data

Primes: SBA's Directory of Federal Government Prime Contractors with Subcontracting Plans (FY2023 and FY2024 editions, the latest SBA has published), built from FPDS-NG. The agency that entered each record owns the data; questions about a contract go to that agency. "Active" means the listed completion date is today or later. Contract value is the base and all options value. We group contracts by the prime's UEI. Open opportunities: SBA SubNet, checked Oct 18, 2026 and weekly. AwardWatchdog is not affiliated with SBA or any prime listed here.

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