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Subcontracting in NAICS 237110: Water and Sewer Line and Related Structures Construction

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 19 primes with such plans on 20 contracts in NAICS 237110 (FY2023 and FY2024), 5 of them still active, with $1,015,259,339 in total contract value. These are the companies to approach about subcontracting work in this industry.

open 237110 set-asides · 237110 contracts expiring · 237110 size standard · how to find teaming partners

Open subcontracting opportunities (SBA SubNet)

OpportunityPrime / companyNAICSPlaceCloses
SAWS, TX – Central Sewershed Package 10 (Terrell Hills) ↗
SAK is seeking local Small, Minority and Woman Businesses (SMWB) for the San Antonio Water System: Central Sewershed…
SAK Construction, LLC237110TexasOct 19, 2026
City of Lomita: Zone G Water Main Replacement Project ↗
Project consists of water main replacements on Walnut Street, Ebony Lane, and 247th Place.
W.A. Rasic Construction Company237110CaliforniaOct 19, 2026
ZONE G WATER MAIN REPLACEMENT PROJECT ↗
ZONE G WATER MAIN REPLACEMENT PROJECT. Owner: City of Lomita. Bid/Contract #: N/A. Location: Lomita, Los Angeles, CA.…
Big Ben Engineering237110CaliforniaOct 19, 2026
COLLEGE PLACE WWTP PHASE 1B ↗
PCI requests pricing for the following scopes: Aggregate, electrical, geotextiles, cast-in-place concrete, precast…
Prospect Construction, Inc.237110WashingtonOct 20, 2026
Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility ↗
Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility. Owner: Eastern Municipal Water…
Walsh Construction Company II, LLC237110CaliforniaOct 20, 2026
Purified Water Replenishment San Jacinto Valley Advanced Water Purification Facility in CA ↗
The purpose of this project is to recharge the San Jacinto groundwater basin with a blend of advanced treated water…
Garney Pacific, Inc.237110CaliforniaOct 20, 2026
Purified Water Replenishment San Jacinto Valley Advances Water Purification Facility ↗
Purified Water Replenishment San Jacinto Valley Advances Water Purification Facility. Owner: Eastern Municipal Water…
W.M. Lyles Co.237110, 000427CaliforniaOct 20, 2026
Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility ↗
The work is comprised of two major components: San Jacinto Valley Advanced Water Purification Facility (SJVAWPF) and…
Eastern Municipal Water District237110CaliforniaOct 20, 2026
Biola CSD - Wastewater Treatment Plant Improvements (C-06-8155-210), Kerman, CA ↗
GSE Construction Co., Inc. is soliciting quotes from qualified subcontractors and suppliers for the Biola Community…
GSE Construction Co., Inc.237110CaliforniaOct 21, 2026
Biola Community Services District - Waste Water Treatment Plant Improvements Project… ↗
Biola Community Services District - Waste Water Treatment Plant Improvements Project (Redesign). Owner: Biola…
W.M. Lyles Co.237110CaliforniaOct 21, 2026
Houston, TX – Northside High School Area Sewer Rehabilitation ↗
SAK Construction, LLC is seeking local Small, Minority and Woman Businesses (MWSBE) for the City of Houston, TX:…
SAK Construction, LLC237110TexasOct 22, 2026
Stadium Road Water Line Extension in Florence, SC ↗
Please see attached.
Columbus Utilities, Inc.237110South CarolinaOct 22, 2026
Village of Roanoke, IL Sanitary Sewer Lining Improvements ↗
Subcontracting Opportunities include but are not limited to: 1. Sewer Cleaning and CCTV Inspection 2. Traffic Control…
SAK Construction, LLC237110IllinoisOct 22, 2026
Alvarado Trunk Sewer & Water Main Relocations ↗
TRADES REQUESTED, BUT NOT LIMITED TO, THE FOLLOWING WORK ITEMS: 237110, 237310, 238110, 541620, 561730
S.C. Valley Engineering, Inc.237110, 237310, 238110, 541620, 561730CaliforniaOct 26, 2026
Urbandale Aquifer Storage and Recovery ↗
Urbandale Aquifer Storage and Recovery. Owner: Urbandale Water Utility. Bid/Contract #: Urbandale 1-2026. Location:…
Hydro Resources - Rocky Mountain, Inc.237110IowaOct 26, 2026
Tract 11 Lead Service Line & Water Main Replacement in Fort Wayne, IN ↗
• Asphalt paving/pavement restoration • Concrete flatwork: curbs, sidewalks, ramps, driveways • Lawn / turf…
Murphy Pipeline Contractors, LLC237110IndianaOct 28, 2026
Greenfield Wastewater Treatment Plant Upgrade Project ↗
Greenfield Wastewater Treatment Plant Upgrade Project. Owner: City of Greenfield. Bid/Contract #: 2026-03. Location:…
Anderson Pacific Engineering Construction, Inc.237110CaliforniaOct 28, 2026
Alvarado Trunk Sewer PH IV and Water Main Relocations Bid Package A ↗
Alvarado Trunk Sewer PH IV and Water Main Relocations Bid Package A. Owner: City of San Diego. Bid/Contract #:…
KTA Construction Inc.237110CaliforniaOct 28, 2026
Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A, Contract… ↗
Please see attached Bid Info Sheet.
Flatiron Dragados Constructors, Inc.237110CaliforniaOct 28, 2026
Greenfield WWTP ↗
Greenfield WWTP. Owner: City of Greenfield. Bid/Contract #: 2026-03. Location: Greenfield, Monterey, CA. Learn more at…
Clark Bros., Inc.237110CaliforniaOct 28, 2026
City of San Diego, Alvarado Trunk Sewer Phase IV and Water Main Relocations Bid Package A ↗
OHLA USA, Inc., is bidding as Prime Contractor for the City of San Diego’s Alvarado Trunk Sewer Phase IV and Water…
OHLA USA, Inc.237110CaliforniaOct 28, 2026
City of San Diego: Alvarado Trunk Sewer Phase iV and Water Main Relocation Bid Package… ↗
Construction consists of installing approximately 5,216 LF of new sewer pipe, groundwater dewatering, and discharge,…
Filanc237110CaliforniaOct 28, 2026
IEUA RMPU Basin Improvements Project Montclair Basin Improvements ↗
Construct Improvements at Montclair Basin 2 and 3 to divert available storm flows from the San Antonio Creek Channel…
Norstar Plumbing and Engineering, Inc237110CaliforniaOct 29, 2026
Recharge Master Plan Update Basin Improvements Project - Montclair Basin Improvements ↗
Recharge Master Plan Update Basin Improvements Project - Montclair Basin Improvements. Owner: Inland Empire Utilities…
Empire Equipment Service, Inc.237110CaliforniaOct 29, 2026
Construction of the Recharge Master Plan Update Basin Improvements Project Montclair… ↗
Seeking C-08, C-10, C-12, C-34, C-50, C-51 subcontractors. This project involves constructing two drop inlet diversion…
Environmental Construction, Inc.237110CaliforniaOct 29, 2026
IEUA RP-5 Offsite Facilities Project No. EN19001.03 and Butterfield Lift Station… ↗
Filanc is accepting quotes for the following scopes: SWPPP, Survey, Aggregates, Demolition, Fence, Paving, Striping,…
Filanc237110CaliforniaOct 29, 2026
Recharge Master Plan Update (RMPU) Basin Improvements Project Montclair Basin Improvements ↗
Recharge Master Plan Update (RMPU) Basin Improvements Project Montclair Basin Improvements. Owner: Inland Empire…
Big Ben Engineering237110CaliforniaOct 29, 2026
Regional Water Recycling Plant No. 5 (RP-5) Offsite Facilities and Butterfield Lift… ↗
The Work consists of all materials, labor, tools, equipment, apparatus, facilities, transportation and incidentals…
W.A. Rasic Construction Company237110CaliforniaOct 29, 2026
23001 SX0 ↗
Looking for MWBEs for Baltimore County-DPW, 23001 SX0 Long Quarter Interceptor Rehabilitation. Please send quote to…
Spiniello Companies237110, 237310, 561990, 238910, 237990MarylandOct 29, 2026
Construction of the Recharge Master Plan Update Basin Improvements Project Montclair… ↗
“It is the Agency's intent to construct improvements at Montclair Basins 2 and 3 to divert available storm flows from…
Inland Empire Utilities Agency237110CaliforniaOct 29, 2026
Buccaneer Lift Station Fixed Price Design-Build ↗
SCOPE OF WORK: Upgrades to existing lift station and pipeline replacement.
Filanc237110CaliforniaOct 30, 2026
Met Council, MN - Coon Rapids 4-NS-525 Rehab ↗
1. Cleaning/CCTV Inspection of Sanitary Sewers 2. Construction Field Office (Furnish & Install) 3. Traffic Control &…
SAK Construction237110MinnesotaNov 3, 2026
MWD - Direct Potable Reuse Demonstration Facility ↗
The project involves construction of an approximately 10,000-square-foot canopied Direct Potable Reuse (DPR)…
Myers-Shimmick, a Joint Venture237110CaliforniaNov 3, 2026
SDC 7807 Drainage Repairs ↗
Looking for MWBEs for City of Baltimore-DPW, SDC 7807 Drainage Repairs and Improvements at Various Locations.
Spiniello Companies237110MarylandNov 4, 2026
WC 1456 Lead Pipe Inspection ↗
Looking for MWBEs for City of Baltimore-DPW, WC 1456 Lead Pipe Inspection and Replacement, please send quote to…
Spiniello Companies237110, 237310, 561990, 238910, 541730, 237990MarylandNov 4, 2026
THE UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN INTEGRATED BIOPROCESSING RESEARCH LABORATORY… ↗
THE UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN INTEGRATED BIOPROCESSING RESEARCH LABORATORY ADDITION, BID DATE OF…
River City Construction, LLC237110IllinoisNov 4, 2026
Water Supply Well No. 1 Replacement (Contracts 1 & 2) in Fair Bluff, NC ↗
Please see attached.
Columbus Utilities, Inc.237110North CarolinaNov 5, 2026
AMERICAN BOTTOMS RWTP – SLUDGE HANDLING FACILITY ↗
AMERICAN BOTTOMS RWTP – SLUDGE HANDLING FACILITY, BID DATE OF 11/5/2026 @ 2:00 PM
River City Construction, LLC237110IllinoisNov 5, 2026
Construction of the Recharge Master Plan Update Basin Improvements Project Montclair… ↗
Seeking C-08, C-10, C-12, C-34, C-50, C-51 subcontractors. This project involves constructing two drop inlet diversion…
Mladen Buntich Construction Company Inc.237110CaliforniaNov 5, 2026
20127 SX0 Jennifer ↗
Looking for MWBEs for Baltimore County-DPW, 20127 SX0 Jennifer Branch Relief Sewer, Please send quote to…
Spiniello Companies237110, 237310, 561990, 238910, 541370, 237990, 561730MarylandNov 5, 2026
Multi-Family 8-Plex Rebuild Apartment Building Project, CA ↗
The project consists of the construction of an approximately 9,379-square-foot, two-story multifamily apartment…
Specialty Construction, Inc.237110CaliforniaNov 9, 2026
Morgans Branch Force Main and Pump Station Improvements ↗
The Project consists of constructing 16,435 linear feet of new 20-inch force main and improvements to the existing…
Don Moorhead Construction, Inc.237110North CarolinaNov 10, 2026
Albany, GA: Pipe Rehabilitation - Phase 1 ↗
SAK Construction, LLC is seeking disadvantaged business enterprises including MBEs, WBEs, and DBEs for Albany, GA:…
SAK Construction, LLC237110GeorgiaNov 11, 2026
Redlands Wastewater Treatment Plant Upgrades Phase 2 ↗
The work under this Contract includes furnishing project management, labor, materials, tools, and equipment for the…
Garney Pacific, Inc.237110CaliforniaNov 12, 2026
Purified Water Replenishment San Jacinto Valley Advanced Water Purification Facility in CA ↗
The purpose of this project is to recharge the San Jacinto groundwater basin with a blend of advanced treated water…
Garney Pacific, Inc.237110CaliforniaNov 17, 2026
WC 1464 Lead Pipe Inspection ↗
Looking for MWBEs for City of Baltimore-DPW, WC 1464 Lead Pipe Inspection and Replacement, please send quote to…
Spiniello Companies237110, 237310, 561990, 238910, 541730, 237990MarylandNov 18, 2026
Franklin CWD ↗
Franklin CWD. Owner: Franklin County Water District. Bid/Contract #: 2026-04. Location: Merced, Franklin County, CA.…
Clark Bros., Inc.237110CaliforniaNov 19, 2026
Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility ↗
The work is comprised of two major components: San Jacinto Valley Advanced Water Purification Facility (SJVAWPF) and…
Eastern Municipal Water District237110CaliforniaNov 19, 2026
Machado WWTF Upgrade and Expansion Project ↗
Machado WWTF Upgrade and Expansion Project. Owner: San Miguel Community Services District. Bid/Contract #: 2026-05.…
Clark Bros., Inc.237110CaliforniaNov 20, 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 contractorLocationContracts (active)Contract valueMain agenciesLatest end
Jacobs Project Management Co.
Parent: Jacobs Engineering Group Inc.
Dallas, Texas1 (1)$267,015,774Bureau of ReclamationOct 7, 2029
CDM Constructors Inc.
Parent: CDM Constructors Inc
Albuquerque, New Mexico1 (1)$262,992,579Bureau of ReclamationFeb 28, 2027
Oscar Renda Contracting IncGrapevine, Texas1 (1)$131,755,000Bureau of ReclamationSep 19, 2029
PCL Construction IncTempe, Arizona1 (1)$42,435,502International Boundary and Water Commission: U.S.-MexicoNov 12, 2031
Gracon LLC
Parent: LYNN/Cornerstone Holdings LLC
Lafayette, Colorado1 (1)$1,012,500Bureau of ReclamationApr 1, 2027
Stronghold Engineering IncPerris, California1 (0)$208,188,457National Park ServiceSep 11, 2026
Thalle Construction Co Inc
Parent: Thalle Construction Co Inc.
Hillsborough, North Carolina1 (0)$28,710,676Bureau of ReclamationApr 15, 2026
Southern Contracting, LLC
Parent: Southern Contracting LLC
Biloxi, Mississippi1 (0)$19,914,264National Park ServiceFeb 15, 2026
C. J. Mahan Construction Company, LLC
Parent: C. J. Mahan Construction Company LLC
Urbancrest, Ohio1 (0)$18,620,920Dept of the ArmyFeb 18, 2025
Aptim-North Wind Construction JV, LLC
Parent: Aptim-North Wind Construction JV LLC
Alexandria, Virginia1 (0)$8,121,740Department of EnergyJun 29, 2023
Sak Construction LLCO Fallon, Missouri1 (0)$7,965,071Dept of the ArmyJan 13, 2026
Insituform Technologies USA, LLC
Parent: Insituform Technologies USA LLC
Chesterfield, Missouri1 (0)$4,628,116Dept of the ArmyJan 30, 2025
S.J. Louis Construction, Inc.
Parent: S.J. Louis Construction Inc
Cold Spring, Minnesota2 (0)$4,412,014Bureau of ReclamationDec 12, 2025
Leeward Construction Inc
Parent: Leeward Construction Inc.
Honesdale, Pennsylvania1 (0)$2,222,222Dept of the ArmyMay 12, 2025
Hawaiian Dredging Construction Company, Inc.
Parent: Kajima Corporation
Honolulu, Hawaii1 (0)$1,674,867Dept of the NavyAug 3, 2022
Archer Western Construction, LLC
Parent: Walsh Group LTD. the
Irving, Texas1 (0)$1,628,245Bureau of ReclamationSep 13, 2023
Environmental Chemical CorporationBurlingame, California1 (0)$1,482,980Dept of the NavyAug 1, 2025
Marion, City of
Parent: City of Marion
Marion, Illinois1 (0)$1,367,363U.S. Fish and Wildlife ServiceFeb 21, 2026
Structural Preservation Systems, LLC
Parent: Structural Preservation Systems LLC
Columbia, Maryland1 (0)$1,111,049Dept of the ArmyDec 3, 2024

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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