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SUBNet subcontracting opportunities

SBA's SUBNet (subcontracting network) helps large federal prime contractors find small subcontractors.

Notice: The ability to post new subcontracting opportunities is not currently available.

Small businesses can browse the listing below to find subcontracting opportunities. You can filter the listing by state or keyword, or sort the listing by clicking a column header. Please direct questions to the posted point of contact for the opportunity, not SBA. Any posts meant only to promote your small business will be removed.

Need help? Contact subcontracting@sba.gov.

Subcontracting Opportunity
Description Closing date Performance start date Place of performance NAICS code Point of contact
Secondary Treatment System Upgrades Project
Flatiron Dragados Constructors, Inc.

Secondary Treatment System Upgrades Project.
Owner: Town of Windsor.
Bid/Contract #: Project No. 2025-25.
Location: Windsor, Sonoma, CA.
Learn more at dbegoodfaith.com/item.php?item_type=ads&ad_adid=66775.

 3/3/2026 California 237110: Water and Sewer Line and Related Structures Construction
3367 Secondary Treatment System Upgrades
J.F. Shea Construction, Inc.

SECONDARY TREATMENT SYSTEM UPGRADES PROJECT
Owner: Town of Windsor
Location: Windsor, CA

Applicable NAICS codes: 237310,238120,238150,238160,238190,238210,238220,238290,238320,238330,238350,238390,
325211,326199,327320,332312,332322,333914,337215,423720

 3/3/2026 California 237310: Highway, Street, and Bridge Construction
STATE OF MISSOURI MARSHALL READINESS CENTER RENOVATE INTERIOR & EXTERIOR
River City Construction, LLC

THE STATE OF MISSOURI MARSHALL READINESS CENTER RENOVATE INTERIOR & EXTERIOR, BID OPENING BID DATE OF 3/5/2026 @ 1:30 PM.

 3/5/2026 Missouri 236220: Commercial and Institutional Building Construction
Wastewater Treatment & Collection Improvements
SnL Group, Inc.

Wastewater Treatment & Collection Improvements.
Owner: City of Dorris.
Bid/Contract #: C-06-8389-210.
Location: Dorris, Siskyou, CA.
Learn more at dbegoodfaith.com/item.php?item_type=ads&ad_adid=66714.

 3/4/2026 California 237110: Water and Sewer Line and Related Structures Construction
Purified Water Replenishment (PWR) - San Jacinto Valley Advanced Water Purification Facility & Conveyance Pipelines Project(s)
Jacobs Project Management Co.

Purified Water Replenishment (PWR) - San Jacinto Valley Advanced Water Purification Facility & Conveyance Pipelines Project(s).
Owner: Eastern Municipal Water District (EMWD).
Bid/Contract #: --. Location: San Jacinto, Riverside, CA.

 2/26/2026 California 237110: Water and Sewer Line and Related Structures Construction
San Diego - Villa La Jolla SD Lining System project, CA
Orion Construction Corporation

Major scopes of work include 132” storm drain lining, 180” storm drain lining, and comprehensive void detection and repair.

 2/24/2026 California 237310: Highway, Street, and Bridge Construction
UTILITY & BACKUP POWER INDEPENDENCE, MISSION CONTROL STATION
BSGI-Weston JV, LLC

Seeking all categorical SBs to provide multi-disciplined support services for the construction and maintenance of an independent backup power plant, including:
Plumbing
HVAC
Fire Suppression System
Mechanical Equipment & Piping
Electrical Controls

 9/1/2026 Colorado 237130: Power and Communication Line and Related Structures Construction
Windsor SECONDARY TREATMENT SYSTEM UPGRADES PROJECT
C. Overaa & Co.

Scope of work includes: The work consists of dewatering the Water Reclamation Facility’s

 3/2/2026 California 236220: Commercial and Institutional Building Construction
San Leandro Channel Crossing Pipeline
Garney Pacific, Inc.

San Leandro Channel Crossing Pipeline.
Owner: East Bay Municipal Utility District.
Bid/Contract #: Specification 2188.
Location: Alameda, Alameda, CA.
Learn more at dbegoodfaith.com/item.php?item_type=ads&ad_adid=66624.

 2/26/2026 California 237110: Water and Sewer Line and Related Structures Construction
Glen Carbon Water Treatment Plant
River City Construction, LLC

Glen Carbon Water Treatment Plant, Bid Opening February 23rd, 2026 @ 2:00PM

 2/23/2026 Illinois 237110

WSSC IDIQ Task 134 Viers Mills Road S. Corridor Sewer Rehab

Insituform Technologies

WSSC IDIQ Task 134 Viers Mills Road S. Corridor Sewer Rehab.
Owner: WASHINGTON SUBURBAN SANITARY COMMISSION.
Bid/Contract #: PROJECT NO. CICRCKLRMH7884A25 / TASK NO. 134.
Location: Rock Creek Basin, Montgomery, MD.

Closing Date
3/5/2026
Place of Performance
Maryland
NAICS code
  • 237110: Water and Sewer Line and Related Structures Construction
Point of Contact
Lynda Whetzel
540-955-9671

WSSC IDIQ Task 132 W. Diamond Ave Sewer Rehab

Insituform Technologies

WSSC IDIQ Task 132 W. Diamond Ave Sewer Rehab.
Owner: WASHINGTON SUBURBAN SANITARY COMMISSION.
Bid/Contract #: TASK ORDER NO. 132 JOB # CRCICKLRMH7826A24.
Location: Muddy Branch Basin, Montgomery , MD.

Closing Date
3/4/2026
Place of Performance
Maryland
NAICS code
  • 237110: Water and Sewer Line and Related Structures Construction
Point of Contact
Lynda Whetzel
540-955-9671

Old Castle Road Phase 2 Project

James W. Fowler Co.

Abandonment of approximately 5,025 linear feet of existing 12-inch CMLC and installation of new 12-inch PVC. 5,840 linear feet of existing 12-inch CMLC to be removed and replaced with 12-inch PVC potable waterline.

Closing Date
3/25/2026
Performance Start Date
6/25/2026
Place of Performance
California
NAICS code
  • 237310: Highway, Street, and Bridge Construction
Point of Contact
Estimating Department
503-623-5373

OLD CASTLE ROAD PHASE 2 PROJECT

Palm Engineering Construction Company

OLD CASTLE ROAD PHASE 2 PROJECT.
Owner: Valley Center Municipal Water District.
Bid/Contract #: PROJECT NO. 01-06-78-51420.
Location: Escondido, San Diego, CA.
Learn more at dbegoodfaith.com/item.php?item_type=ads&ad_adid=66945.

Closing Date
3/25/2026
Place of Performance
California
NAICS code
  • 237110: Water and Sewer Line and Related Structures Construction
Point of Contact
Mo Abdelwahed
619-291-1495

Project Control Services Via Master Services Contract

Inland Empire Utilities Agency

The Inland Empire Utilities Agency (hereafter “IEUA” or Agency”) invites submittal of electronic proposals for provision of on-call Project Controls services to be provided on an “as-needed” basis under the terms to be established by a three-year (approximately from June 2026 – June 2029), fixed-

Closing Date
4/7/2026
Performance Start Date
6/1/2026
Place of Performance
California
NAICS code
  • 541330: Engineering Services
Point of Contact
Jordan Villalobos
909-993-1961

Reconstruct Runway 8L–26R, Taxiway N and Connector Taxiways East of Taxiway U Project, CA

Coffman Specialties, Inc.

Invitation for bid for the full depth reconstruction of Runway 8L-26R keel East of Taxiway U, 1,100 feet of the south outboard pavement and the full runway width at the intersection of Taxiway U, Taxiway V, and Taxiway W, full depth reconstruction of Taxiway N East of Taxiway U, rehabilitation of

Closing Date
3/20/2026
Performance Start Date
5/1/2026
Place of Performance
California
NAICS code
  • 237310: Highway, Street, and Bridge Construction
Point of Contact
Marty Keane
858-536-3100

Franklin Elementary School Modernization

Industrial Electric Construction & Maintenance Co

Franklin Elementary School Modernization. Owner: Bakersfield City School District. Bid/Contract #: 22212.00-25-HVAC / DSA # 03-122910. Location: Bakersfield, Kern , CA. Learn more at dbegoodfaith.com/item.php?item_type=ads&ad_adid=66944.

Closing Date
3/5/2026
Place of Performance
California
NAICS code
  • 236220: Commercial and Institutional Building Construction
Point of Contact
Zach Blackmon
661-243-7033

Pipeline Work

T C Construction Company, Inc.

Abandonment of approx. 5025 linear feet of existing 12” CMLC, install new 12” PVC. Remove approx. 5840 linear feet of existing 12” CMLC, replace with 12” PVC potable waterline. Install air vac assemblies, blowoff assemblies, water service, temp water line installed during construction.

Closing Date
3/24/2026
Place of Performance
California
NAICS code
  • 237310: Highway, Street, and Bridge Construction
Point of Contact
Chad Cameron
619-448-4560 ext. 123

CITY OF MACOMB WATER TREATMENT PLANT IMPROVEMENTS

River City Construction, LLC

CITY OF MACOMB WATER TREATMENT PLANT IMPROVEMENTS BID OPENING BID DATE OF 3/30/2026 @ 12:00 PM

Closing Date
3/30/2026
Place of Performance
Illinois
NAICS code
  • 237110: Water and Sewer Line and Related Structures Construction
Point of Contact
JT Mosbach
309-694-3120

Roof Replacement

Earle C. Clements Job Corps Center

Replacement of roofs, fascia, soffits, gutters and downspouts on 1517 TABE building at Earle C. Clements Job Corps Academy. Detailed scope of work in attached Construction Bid Package (CBP).

Closing Date
3/13/2026
Place of Performance
Kentucky
NAICS code
  • 238160: Roofing Contractors
Point of Contact
Jessica Norman
270-389-5358