RFPs, RFIs, RFQs, Sources Sought and Government Contracting Opportunities in Contra Costa County, California

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

StatusTitleBuyerDue Date
OpenAlameda County Shuttle Bus Services

Alameda County is seeking a contractor to provide and operate five weekday shuttle bus routes, including buses, drivers, maintenance, GPS tracking, reporting, and special-event service, under a three-year contract with two renewal years.

Alameda County, CA, USARequest for Quote/Qualifications (RFQ)Small Business
County of Alameda > General Services Agency > Procurement10/12/2026
OpenDetention Facility Chaplaincy Services

Contra Costa County is seeking providers to deliver on-site, multi-faith chaplaincy services, counseling, worship support, crisis response, and volunteer coordination at four Sheriff’s detention facilities.

Contra Costa County, CA, USARequest for Proposal (RFP)
Office of the Sheriff9/30/2026
OpenCloud-Based Transit Signal Priority System Construction

The Livermore Amador Valley Transit Authority is seeking a contractor to furnish, install, integrate, test, and commission a cloud-based Transit Signal Priority system at signalized intersections in Livermore, Dublin, and Pleasanton, California.

Alameda County, CA, USAInvitation for/to Bid (IFB/ITB)
Livermore Amador Valley Transit Authority10/30/2026
OpenProfessional Services for Project and Construction Management

Chabot-Las Positas Community College District is seeking a consultant to provide project and construction management services for bond-funded projects, including design phase support, construction administration, and LEED certification coordination.

Alameda County, CA, USARequest for Proposal (RFP)
Chabot-Las Positas Community College District-
OpenStage and Rain Gauges Installation

Zone 7 Water Agency is seeking a contractor to install stream gauging equipment, including field cameras, pressure transducer probes, staff gauges, and telemetry equipment, at two locations in Alameda County, California.

Alameda County, CA, USAOther
California > Zone 7 Water Agency-
OpenJob Order Contracts for Building Repair and Maintenance

Contra Costa County is seeking bids for four Job Order Contracts for repair, alteration, modernization, maintenance, rehabilitation, and demolition work on buildings and facilities, with a mandatory pre-bid conference.

Contra Costa County, CA, USAInvitation for/to Bid (IFB/ITB)
Contra Costa County > Public Works Department > Capital Projects Management Division10/6/2026
OpenPublic Website Redesign and Accessibility Modernization

The West Contra Costa Transportation Commission is seeking a web agency to modernize its public website, implement an accessible CMS, migrate content, achieve WCAG 2.1 Level AA conformance, and train staff within a $22,000 budget.

Contra Costa County, CA, USARequest for Proposal (RFP)
Contra Costa Transportation Authority9/26/2026
OpenEvacuation Planning and Modeling Software

Alameda County is seeking a secure, cloud-based evacuation planning and modeling software solution with implementation, integration, training, support, and maintenance services for countywide multi-jurisdictional emergency operations.

Alameda County, CA, USARequest for Proposal (RFP)
County of Alameda > General Services Agency10/13/2026
OpenDublin/Pleasanton Access Improvements

Bay Area Rapid Transit is planning a $13 million Dublin/Pleasanton access improvements project, anticipated for October 2026.

Alameda County, CA, USA
Bay Area Rapid Transit-
OpenProject and Construction Management Services for Measure A Projects

Chabot-Las Positas Community College District is seeking qualified firms to provide project management and construction management services for its Measure A projects.

Alameda County, CA, USARequest for Proposal (RFP)
Chabot-Las Positas Community College District-
OpenSan Pablo Avenue Parallel Bike Improvements Project

The Alameda County Transportation Commission is seeking a contractor for the San Pablo Avenue Parallel Bike Improvements Project, including traffic-calming roadway modifications, pavement rehabilitation, bicycle-facility markings, pedestrian beacons, signage, drainage work, and landscaping in Albany, Berkeley, Emeryville, and Oakland.

Alameda County, CA, USAInvitation for/to Bid (IFB/ITB)
Alameda County Transportation Commission9/21/2026
OpenCountywide Intelligent Transportation Systems Modernization

The Contra Costa Transportation Authority is seeking a contractor to modernize intelligent transportation systems at approximately 365 intersections countywide, including traffic signal equipment installation, communications networking, systems integration, and testing.

Contra Costa County, CA, USAInvitation for/to Bid (IFB/ITB)
Contra Costa Transportation Authority10/13/2026
OpenScalable Housing Infill Funding Toolkit (SHIFT) Developer Pool

Alameda County is seeking qualified development teams to establish a pool of partners eligible to bid on future SHIFT-funded projects, including multifamily infill housing and senior ADUs.

Alameda County, CA, USARequest for Quote/Qualifications (RFQ)
County of Alameda > Housing and Community Development Department-
OpenHousing and Homelessness Services Vendor Pool

Alameda County Health is seeking qualified vendors to provide housing and homelessness services, including housing community supports, health and supportive services, interim and permanent housing administration, and homelessness prevention services.

Alameda County, CA, USARequest for Proposal (RFP)
County of Alameda > Health Care Services Agency10/13/2026
OpenFine Art Handling, Framing, and Fabrication Services

Alameda County is seeking museum-quality fine art handling, archival custom framing, and two-dimensional fine art fabrication services through a three-year, renewable contractor pool.

Alameda County, CA, USARequest for Proposal (RFP)Small Business
County of Alameda > General Services Agency > Procurement10/22/2026
OpenSenior ADU Program Administration Services

Alameda County Housing and Community Development Department is seeking a qualified firm to administer the SHIFT Senior ADU Program, including financing design, homeowner services, construction management, lot-split administration, and oversight of accessory dwelling unit projects.

Alameda County, CA, USARequest for Quote/Qualifications (RFQ)Other
County of Alameda > Housing and Community Development Department10/10/2026
OpenSHIFT Developer Pool Request for Qualifications

Alameda County Housing and Community Development Department is seeking qualified development teams to establish a pool of partners for the Scalable Housing Infill Funding Toolkit (SHIFT) program, focusing on constructing new infill multifamily rental housing and ADUs for seniors.

Alameda County, CA, USARequest for Quote/Qualifications (RFQ)
County of Alameda > Housing and Community Development Department-
OpenCanal Siphon Diving and Cleaning Services

Contra Costa Water District is seeking electronic bids for underwater diving, sediment and debris removal, and restoration services at two canal siphon sites in Contra Costa County, California.

Contra Costa County, CA, USAInvitation for/to Bid (IFB/ITB)
Contra Costa Water District9/21/2026
OpenValley Link Phase 1A General Engineering Consultant

The Tri-Valley-San Joaquin Valley Regional Rail Authority is seeking a general engineering consultant to serve as designer and engineer of record for the Valley Link Phase 1A rail project, advancing design from 30% through final design and supporting pre-construction, reviews, coordination, and construction.

Alameda County, CA, USARequest for Proposal (RFP)
Tri-Valley-San Joaquin Valley Regional Rail Authority > Valley Link10/16/2026
OpenVacant Unit Turnover Preparation Services

The Housing Authority of the County of Contra Costa is seeking one or more contractors for as-needed vacant-unit turnover preparation services, including repairs, cleaning, painting, flooring, plumbing, electrical work, and related maintenance across its properties.

Contra Costa County, CA, USARequest for Proposal (RFP)Other
Housing Valley Authorities Consortium > Housing Authority of the County of Stanislaus10/5/2026
OpenWebsite Redesign and WCAG 2.1 AA Accessibility Compliance

The West Contra Costa Transportation Commission is seeking a web agency to redesign and rebuild its public website, implement WCAG 2.1 Level AA accessibility, migrate content, provide testing and staff training, within a $22,000 budget ceiling.

Contra Costa County, CA, USARequest for Proposal (RFP)
Contra Costa Transportation Authority9/26/2026
OpenUniform Rental and Textile Services

Alameda County is seeking uniform rental and textile services, including garment fitting, laundering, repairs, replacements, inventory tracking, and scheduled delivery across multiple County departments and locations.

Alameda County, CA, USARequest for Quote/Qualifications (RFQ)Small Business
County of Alameda > General Services Agency > Procurement10/22/2026
OpenForensic Pathology Services

Alameda County is seeking up to three certified forensic pathology contractors to provide as-needed autopsies, medical death investigations, scene response, toxicology-related coordination, and legally defensible cause-and-manner-of-death reports.

Alameda County, CA, USARequest for Proposal (RFP)Other
County of Alameda > General Services Agency > Procurement10/15/2026
OpenCommunications and Public Engagement Support Services

Contra Costa County is seeking one or more communications firms to provide as-needed strategic communications, public engagement, campaign, research, media planning, advertising, and crisis communications support for Contra Costa Health.

Contra Costa County, CA, USARequest for Proposal (RFP)
Contra Costa County10/1/2026
OpenLicensed Clinical Psychologist Recruitment and Staffing

Alameda County is seeking recruitment and staffing agencies to provide permanent and temporary licensed clinical psychologists for its forensic behavioral health programs and county-operated jail system.

Alameda County, CA, USARequest for Proposal (RFP)Small Business
County of Alameda > General Services Agency > Procurement10/5/2026
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