RFPs, RFIs, RFQs, Sources Sought and Government Contracting Opportunities in Modesto, California

Browse open government contracting RFPs, RFIs, RFQs, and Sources Sought in Modesto, California on Bidscope. We aggregate active government contracting opportunities from federal, state, and local agencies across Modesto, California, refreshed daily so you never miss a bid. Click any opportunity below for full solicitation details, due dates, and contacts.

StatusTitleBuyerDue Date
ClosedWastewater System Flow Monitoring Services

The City of Modesto is seeking a consultant to provide wastewater system flow monitoring services, including installation of up to 50 flow monitors, data collection and analysis, and delivery of a comprehensive flow monitoring report.

Modesto, CA, USARequest for Proposal (RFP)
City of Modesto > Utilities Department9/8/2026
OpenBoat Portage Services

The California Department of Water Resources is seeking three years of boat portage services, including trailering boats across temporary rock barriers at two South Delta sites in San Joaquin County.

San Joaquin County, CA, USAInvitation for/to Bid (IFB/ITB)Small Business
California > Department of Water Resources > Division of Operations and Maintenance9/17/2026
OpenOn-Call Geotechnical Engineering Services

The City of Modesto is seeking up to three qualified firms for on-call geotechnical engineering services supporting capital improvement and infrastructure projects under three-year agreements with two one-year extension options.

Modesto, CA, USARequest for Quote/Qualifications (RFQ)
City of Modesto > Utilities Department9/22/2026
ClosedBeyer and Downey Parks Sports Field Lamp Replacements

The City of Modesto is seeking a contractor to replace sports-field lighting lamps and provide as-needed ballast replacements at Beyer and Downey Community Parks.

Modesto, CA, USAInvitation for/to Bid (IFB/ITB)
City of Modesto > Engineering Services Department9/8/2026
OpenStorage Batteries, NSN 6140-01-479-0999

The Defense Logistics Agency is requesting 548 storage batteries under NSN 6140-01-479-0999 from approved sources, with electronic quotes due September 11, 2026.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLIER OPNS BATTERIES/TIRES)9/11/2026
OpenAffordable Housing Family Facility Management

Stanislaus County is seeking facility management services for its affordable housing family housing facility under solicitation STANCO 26-27.

Stanislaus County, CA, USARequest for Proposal (RFP)
California > Department of Industrial Relations-
OpenMossdale Tract Area Urban Flood Risk Reduction Project

The San Joaquin Area Flood Control Agency is seeking a contractor for the Mossdale Tract Area Urban Flood Risk Reduction Project, which includes construction and maintenance of flood risk reduction components, levee improvements, ecosystem restoration, and recreational features in San Joaquin County.

San Joaquin County, CA, USAOther
San Joaquin Area Flood Control Agency-
ClosedSediment Strainers

The Defense Logistics Agency is requesting an electronic quote for eight sediment strainers meeting specified National Stock Number and approved-source requirements.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (FLUID HANDLING DIVISION)9/8/2026
OpenSouthwest Pipeline Pool 5 Replacement Project

The Oakdale Irrigation District is seeking a contractor to replace approximately 1,646 linear feet of 27-inch PVC pipeline, including two turnouts, as part of the Southwest Pipeline Pool 5 Replacement Project in Stanislaus County, California.

Stanislaus County, CA, USAOther
Oakdale Irrigation District-
Open400-Bed Emergency Shelter Operations

The City of Modesto and County of Stanislaus are seeking qualified organizations to operate a 400-bed emergency shelter and provide comprehensive shelter, housing navigation, case management, supportive, and facility services.

Modesto, CA, USARequest for Quote/Qualifications (RFQ)
City of Modesto > Community and Economic Development Department9/25/2026
OpenSeal Replacement Parts Kits

The Defense Logistics Agency is requesting 14 parts kits for seal replacement under NSN 5330-01-377-2751, with electronic quotes due September 11, 2026.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLIER OPNS VEHICLE SPT)9/11/2026
OpenRegulating Valves, NSN 4820-01-311-0992

The Defense Logistics Agency is requesting 27 regulating valves under NSN 4820-01-311-0992 for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (FLUID HANDLING DIVISION)9/14/2026
ClosedSwitch Assembly, NSN 5930-01-284-1258

The Defense Logistics Agency is requesting an electronic quote for four switch assemblies, NSN 5930-01-284-1258, for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (ELECTRICAL DEVICES DIV)9/8/2026
ClosedStem Fluid Valves

The Defense Logistics Agency is requesting an electronic quote for five stem fluid valves, NSN 4820-01-323-7311, for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME HARDWARE/ELECTRICAL)9/8/2026
ClosedThermostatic Regulators, NSN 4820-00-003-6091

The Defense Logistics Agency is requesting an electronic quote for 17 thermostatic regulators under NSN 4820-00-003-6091, with delivery to DLA Distribution San Joaquin within 92 days after order.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Woman-Owned Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME HARDWARE/ELECTRICAL)9/8/2026
OpenButterfly Valves, NSN 4810-01-482-8810

The Defense Logistics Agency is requesting an electronic quote for 16 butterfly valves under NSN 4810-01-482-8810 for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (MARITIME HARDWARE/ELECTRICAL)9/10/2026
OpenThermal Resistors, NSN 5905-01-551-4002

The Defense Logistics Agency is requesting 24 thermal resistors under NSN 5905-01-551-4002 for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLY CHAIN)9/11/2026
ClosedFlashlights, NSN 6230-01-413-5270

The Defense Logistics Agency is requesting an electronically submitted quote for 228 flashlights under NSN 6230-01-413-5270, with delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Woman-Owned Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [LGHTNG I])9/8/2026
OpenMetal Plates, NSN 9515-01-350-5319

The Defense Logistics Agency is requesting four metal plates under NSN 9515-01-350-5319 for delivery to DLA Distribution San Joaquin, with electronic quotes due September 14, 2026.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [METALS])9/14/2026
OpenIgnition Suppressors

The Defense Logistics Agency is requesting two ignition suppressors, NSN 2925-01-654-2478, approved source part number 408367-1, for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA AVIATION (ASC SUPPLIER OPER AE AND AF DIV)9/9/2026
OpenGear Mechanisms, NSN 3040-01-483-9138

The Defense Logistics Agency is requesting three gear mechanisms under NSN 3040-01-483-9138 for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLIER OPNS VEHICLE SPT)9/11/2026
OpenIndependent Audit Services (Rescinded)

Modesto City Schools is seeking independent audit services, but RFP 19-4699 has been rescinded.

Modesto, CA, USARequest for Proposal (RFP)
Modesto City Schools-
OpenNSN 3120-01-185-3497 Sleeve Bushings

The Defense Logistics Agency is requesting 492 sleeve bushings under NSN 3120-01-185-3497 for delivery to DLA Distribution San Joaquin, with an approved source identified.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (LAND SUPPLIER OPNS ENGINES)9/10/2026
OpenAir-Conditioning Filter Elements

The Defense Logistics Agency is requesting 55 filter elements for air-conditioning equipment under NSN 4130-01-567-2032, with electronic quotes required.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT [LGTNG II])9/14/2026
ClosedConnector Receptacles, NSN 5935-01-6083

The Defense Logistics Agency is requesting an electronic quote for 33 NSN 5935-01-608-6083 connector receptacles for delivery to DLA Distribution San Joaquin.

San Joaquin County, CA, USARequest for Quote/Qualifications (RFQ)Woman-Owned Business
United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA LAND AND MARITIME (ACTIVE DEVICES DIVISION)9/8/2026
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