This Subcontract opportunity from California was posted on July 28, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Independent Inspection and Quality Assurance

Closed

State & Local

Submission Closed08/06/2026, 03:00:00 PM PDT

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 541620

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International

Environmental Monitoring and GIS ReportingThis subcontract for Environmental Monitoring and GIS Reporting supports prime contractors on projects for the Regional District of East Kootenay in Canada. The selected provider will be responsible for technical monitoring and data analysis, specifically utilizing mosquito traps and sampling equipment to collect field results. Key deliverables include the generation of GIS data maps and the production of comprehensive end-of-season reports for local government review. Qualified candidates must demonstrate proficiency in Geographic Information Systems and adhere to established environmental sampling standards. The solicitation was posted on November 13, 2026, with a response deadline of December 3, 2026. This opportunity falls under NAICS code 541620 and is managed through the Province of British Columbia.

Regional District of East Kootenay

POSTED

DEADLINE

Needs Assessment & Evaluation FrameworkThis subcontract opportunity with the Gwinnett County Government in Georgia focuses on providing specialized needs assessment and evaluation framework services for transportation planning projects. The selected contractor will support prime contractors by developing project prioritization frameworks and conducting both Current and Planning Horizon Needs Assessments. Key responsibilities include creating trade-off analysis evaluation frameworks and producing all necessary supporting maps, tables, and text to document findings. The primary deliverables for this engagement are the comprehensive evaluation framework documentation and the Final Current and Planning Horizon Needs Assessment Report. This project falls under NAICS code 541620. Interested parties should note the response deadline of December 16, 2026, for this specific government-related transportation initiative.

Gwinnett County Government

POSTED

DEADLINE

Stream Mitigation Credit ProviderThis subcontract agreement establishes a partnership for the provision of 450 stream mitigation credits to support prime contractors working on Loudoun County projects, with a specific focus on the Lightridge Park development. The provider is responsible for delivering these credits from a mitigation bank and must submit a current credit ledger along with a Primary Service Area map. The formalization of this arrangement requires the execution of an Agreement for Credit Purchase and Sale. To ensure regulatory compliance, the transfer of credits is subject to approval from the Virginia Department of Environmental Quality and the U.S. Army Corps of Engineers. The contract falls under NAICS code 541620 and is managed by Loudoun County, Virginia, with a response deadline set for December 15, 2026.

POSTED

DEADLINE

Purchase of Stream Mitigation Credits for Lightridge Park, RFQ 719029

Solicitation # RFQ 719029

Loudoun County, Virginia, is soliciting bids under RFQ 719029 for the purchase of an estimated 450 stream mitigation credits to provide compensatory mitigation for stream impacts associated with the construction of Lightridge Park. To be eligible, bidders must be owners or authorized representatives of mitigation banks approved by the U.S. Army Corps of Engineers (USACE) and the Virginia Department of Environmental Quality (DEQ). Credits must be calculated using the Unified Stream Methodology (USM) or Stream Condition Units (SCUs) and must be released and available for sale at the time of bid opening. Furthermore, the bank's approved service area must include the Upper Bull Run watershed, specifically Hydrologic Unit Code (HUC) 020700100701. The final quantity of credits will be determined by the requirements of USACE State Program General Permit No. NAO-2026-01685 and DEQ Virginia Water Protection Permit No. WP4-26-1792. The contract will be awarded to the lowest responsive and responsible bidders based on unit cost, with the County reserving the right to award multiple contracts if a single bidder cannot provide the full quantity of credits. Bids must be submitted by December 15, 2026, and must include a W-9 form and Proof of Authority to Transact Business in Virginia. Required submissions include one physical hard copy and one electronic PDF copy on a USB flash drive. Upon award, the contractor must provide a written letter of credit availability and an executed purchase agreement within seven calendar days of the purchase order, followed by a Bill of Sale and verification of conveyance to USACE and DEQ within ten calendar days of payment.

POSTED

DEADLINE

Environmental Protection and Silt ControlThis subcontract for Environmental Protection and Silt Control involves providing environmental mitigation services for prime contractors working on County of Renfrew bridge projects at the Madawaska River in Canada. The scope of work includes the installation of turbidity curtains and silt fences, as well as the continuous monitoring of water quality through the use of specialized water sampling equipment. The selected provider is responsible for delivering a comprehensive environmental protection system and submitting detailed compliance reports. To be eligible, the contractor must hold the necessary environmental compliance certifications. The response deadline for this opportunity is December 3, 2026.

POSTED

DEADLINE

GNSS Vulnerability and OT Systems ResearchThis subcontract with the Government of Canada focuses on conducting technical research regarding the Canadian energy sector's reliance on Global Navigation Satellite Systems (GNSS) and the associated vulnerabilities of critical operational technology systems. Working for prime contractors on PSPC Defence Sciences Division projects, the selected provider will analyze Transmission System Operators and ancillary services to develop a comprehensive classification system for GNSS-dependent critical infrastructure. The project requires specialized expertise in GNSS, operational technology, and energy infrastructure architectures. The primary objective is to identify systemic weaknesses and deliver a detailed synthesis of findings for a final report. Interested parties must respond by December 14, 2026, for this Canada-based performance engagement categorized under NAICS code 541620.

Government of Canada / Gouvernement du Canada

POSTED

DEADLINE

Construction Project Management & Site SupervisionThis subcontract agreement with Peabody Trust focuses on the delivery of construction project management and site supervision services for UK public sector projects. The provider will support prime contractors by serving as the Employer's Agent or Clerk of Works, ensuring rigorous technical assurance, governance, and contract administration throughout the project lifecycle. Key responsibilities include performing detailed site supervision and providing essential documentation such as construction management logs, project schedules, and site inspection reports. The engagement is categorized under NAICS code 541620, emphasizing the professional environmental consulting and management nature of the required services.

POSTED

DEADLINE

Play Area Safety Inspections and CertificationThis subcontract for Play Area Safety Inspections and Certification involves providing professional safety audits and inspections of play equipment for prime contractors working on Bedford Borough Council projects. The selected provider will be responsible for conducting both annual and quarterly inspections to identify potential hazards and defects, ensuring all equipment adheres strictly to BS EN 1176 and BS EN 1177 standards. To qualify for this engagement, the provider must hold RPII certification or an equivalent professional qualification. The primary deliverables include the submission of signed safety inspection reports and formal certification confirming the safety of the equipment. Interested parties must respond by November 30, 2026.

Bedford Borough Council

POSTED

DEADLINE

Environmental Review and CoordinationThis subcontract for Environmental Review and Coordination involves performing critical environmental assessments for prime contractors working on HUD Commercial Driver License Training and Examination Center projects for Polk County, Texas. The selected provider will be responsible for identifying HUD Part 50 and Part 58 pathways, coordinating necessary environmental studies, and securing all required approvals. A primary focus of the role is to maintain a detailed status matrix of environmental requirements and monitor restrictions on choice-limiting actions to ensure projects are not prematurely committed. The final deliverables for this engagement include comprehensive environmental review documentation, an updated status matrix, and official approved environmental clearances. This opportunity falls under NAICS code 541620 and was posted on November 13, 2026, with a response deadline of November 30, 2026.

POSTED

DEADLINE

Traffic Monitoring Services (Field Operations)This subcontract for Traffic Monitoring Services (Field Operations) supports prime contractors on transport projects for the West Yorkshire Combined Authority. The scope of work involves the installation, maintenance, and operation of monitoring tools designed to track patronage across rail, bus, walking, and cycling networks. The provider is responsible for deploying traffic-monitoring equipment in accordance with specific technical ability conditions to ensure the generation of robust data. The primary deliverables include the provision of raw monitoring data and detailed operational reports. Interested parties must submit their responses by December 11, 2026, to provide these essential field operations and data collection services.

West Yorkshire Combined Authority

POSTED

DEADLINE

Wetland Mitigation Credit ProviderThis subcontract opportunity with the South Dakota State Government seeks a recognized mitigation bank entity to provide certified wetland mitigation credits for prime contractors working on state transportation projects. The scope specifically includes project PCN 01VA – 08DJ – 08DK as well as other initiatives listed in the State Transportation Improvement Program. All provided credits must strictly adhere to USACE 404 Permit and EO11990 standards to ensure environmental compliance. The selected provider is required to maintain Commercial General Liability insurance of at least 1,000,000 dollars. Key deliverables for the contract include the provision of a Bill of Sale and the necessary notifications of acceptance from the USACE and FHWA. Interested parties must submit their responses by December 3, 2026.

South Dakota State Government

POSTED

DEADLINE

Urban Design and Historic Preservation ConsultantThe Spalding County Board of Commissioners in Georgia is seeking an Urban Design and Historic Preservation Consultant for a subcontracting opportunity. The selected consultant will be responsible for establishing visual and physical standards for the built environment to guide prime contractors on county projects. Key deliverables include the creation of form-based codes and historic preservation standards, as well as the production of supporting graphics, illustrations, and diagrams to help visualize Unified Development Ordinance requirements. Qualified candidates must possess specialized expertise in urban design, historic preservation, or form-based coding. This opportunity was posted on November 13, 2026, with a response deadline of December 15, 2026. The project falls under NAICS code 541620 and focuses on enhancing the architectural and historical integrity of the local environment through detailed design standards and visual documentation.

Spalding County Board of Commissioners

POSTED

about 17 hours ago

DEADLINE

in about 1 month

AI Contract Overview

The City of Roseville is seeking a subcontractor to perform independent third-party verification of sod quality, irrigation system performance, and grading accuracy for landscape installations. This engagement includes comprehensive soil testing to ensure proper nutrient composition and drainage capabilities, as well as detailed post-installation inspections to validate compliance with specified standards. The work requires meticulous documentation and objective assessment to confirm that all elements of the landscape construction meet required benchmarks for durability, functionality, and aesthetic integrity. The contract is categorized under NAICS code 541620, indicating professional, scientific, and technical services related to environmental and landscape management. The response deadline is August 6, 2026, and the place of performance is limited to Roseville, California, with a zip code of 95747. This subcontract is not set aside for any specific business classification, and all qualified providers are eligible to respond. The inspection process must be thorough, impartial, and aligned with industry best practices to serve as a trusted quality assurance measure for the city’s public landscape projects.