NAICS 541990 - All Other Professional, Scientific, and Technical Services RFPs, RFIs, RFQs, Sources Sought and Government Contracting Opportunities

Browse open All Other Professional, Scientific, and Technical Services (NAICS 541990) RFPs, RFIs, RFQs, and Sources Sought on Bidscope. We aggregate active government contracting opportunities from federal, state, and local agencies, refreshed daily so you never miss a bid. Click any opportunity below for full solicitation details, due dates, and contacts.

About All Other Professional, Scientific, and Technical Services (NAICS 541990)

This industry comprises establishments primarily engaged in the provision of professional, scientific, or technical services (except legal services; accounting, tax preparation, bookkeeping, and related services; architectural, engineering, and related services; specialized design services; computer systems design and related services; management, scientific, and technical consulting services; scientific research and development services; advertising, public relations, and related services; market research and public opinion polling; photographic services; translation and interpretation services; and veterinary services).

StatusTitleBuyerDue Date
OpenMunicipal Property Assessment Services

The County of Minburn No. 27 is seeking assessment services for a five-year period, including property inspections, statutory assessments, reporting, and projected assessment changes for budgeting.

Minburn No. 27, AB, CanadaRequest for Proposal (RFP)
Minburn County No. 2710/1/2026
OpenEmbarcadero West Rail Safety Construction Management Support

The City of Oakland is seeking a professional services consultant to provide construction management support, special inspection, material testing, environmental monitoring, and project-control software services for the Embarcadero West Rail Safety Project.

Oakland, CA, USARequest for Proposal (RFP)Other
City of Oakland > Department of Transportation > Major Projects Division10/1/2026
OpenArchitectural, Engineering & Surveyors Roster

The City of Ocean Shores is seeking qualified firms for architectural, engineering, and surveying services through a roster maintained by the Washington State Office of Minority and Women's Business Enterprises.

Ocean Shores, WA, USARequest for Quote/Qualifications (RFQ)
Washington > Office of Minority and Women's Business Enterprises12/31/2026
OpenLaboratory Inspection Services for Public Works

Jefferson Parish is seeking laboratory services to inspect materials and equipment for public works projects in Louisiana.

Louisiana, USARequest for Quote/Qualifications (RFQ)
Jefferson Parish > Purchasing Department10/2/2026
Open2027 Road Repair and Rehabilitation Engineering Services

The Town of Whitchurch-Stouffville is seeking qualified engineering consultants for design, contract administration, construction inspection, and materials testing services supporting its 2027 Road Repair and Rehabilitation Program.

Whitchurch-Stouffville, ON, CanadaRequest for Proposal (RFP)
Town of Whitchurch-Stouffville9/24/2026
OpenOn-Call Surveying, Planning, and Engineering Services

The Village of Tularosa is requesting qualifications-based proposals for on-call professional surveying, planning, and engineering services.

705 Saint Francis Drive, Tularosa, NM, USARequest for Proposal (RFP)
Tularosa Municipal Schools10/9/2026
OpenMunicipal Property Assessment Services

The Town of High Level is seeking annual assessment services for all assessable property within the Town, excluding linear and designated industrial property, for the 2028–2030 assessment years, with two optional one-year extensions.

High Level, AB, CanadaRequest for Proposal (RFP)
Town of High Level9/25/2026
OpenMining Inspection Services

Stanislaus County is seeking a qualified entity to provide mining inspection services for its Planning and Community Development Department under a lump-sum agreement.

1010 10th Street, Modesto, CA, USARequest for Proposal (RFP)
County of Stanislaus > Planning and Community Development Department10/8/2026
OpenAudit and Accounting Services Prequalification

The University of Hawaiʻi is seeking certified public accountants to submit qualifications and letters of interest for a continuously recruited pre-qualified list providing audit and accounting services during fiscal year 2027.

University of Hawaiʻi at Mānoa, Honolulu, HI, USARequest for Quote/Qualifications (RFQ)
University of Hawaii-
OpenCourthouse Special Inspections and Testing Services

The Town of Surfside Beach is seeking qualified firms to provide special inspections and testing services for construction of a new one-story courthouse and council chambers building.

115 S Hwy 17 Bus, Myrtle Beach, SC, USARequest for Proposal (RFP)
Surfside Beach9/18/2026
OpenProperty Assessment Services, 2027-2032

The City of Drummondville is seeking professional services for property assessment covering 2027 through 2032.

Drummondville, QC, CanadaRequest for Proposal (RFP)
Drummondville10/8/2026
OpenConstruction Engineering and Inspection Services for Route 15 Roundabout

Loudoun County, Virginia, is seeking a consultant to provide full-time construction engineering and inspection services, including on-site inspection, construction administration, materials testing, and engineering support for the Route 15 roundabout project.

Loudoun County, VA, USARequest for Proposal (RFP)
Loudoun County10/1/2026
OpenWater Storage Access Road Bridge Engineering Services

The Village of Highland Falls is seeking an engineering firm for surveying, environmental investigations, bridge design, right-of-way services, construction support, and full-time inspection for replacement of the Water Storage Access Road Bridge over Highland Brook.

Highland Falls, NY, USARequest for Proposal (RFP)
Village of Highland Falls9/29/2026
OpenAnnual Financial Audit Services

Rock Region METRO is requesting qualifications from professional accounting and auditing firms to provide annual financial audit services.

Little Rock, AR, USARequest for Quote/Qualifications (RFQ)
METRO-
OpenLaboratory, Soil and Materials Engineering Services

Defence Construction Canada is issuing an advance notice for a potential standing offer agreement covering laboratory, soil and materials engineering, geoenvironmental, and building science services at Valcartier Garrison and surrounding areas.

Saint-Gabriel-de-Valcartier, QC, CanadaOther
Government of Canada > Defence Construction Canada > Western Region10/30/2026
OpenCutter Engineering and Weapons Training Building Phase 2 Construction Inspection Services

The U.S. Department of Homeland Security, through the U.S. Coast Guard, is seeking firm-fixed-price construction inspection services for Phase 2 of the Cutter Engineering and Weapons Training Building at Training Center Yorktown, Virginia, with an estimated value of $350,000 to $500,000.

Yorktown, VA, USARequest for Proposal (RFP)
United States of America > HOMELAND SECURITY, DEPARTMENT OF > US COAST GUARD-
OpenRoadway Materials Testing Services

The City of University Place is seeking a consulting firm to provide on-call subgrade, concrete, and asphalt materials testing during construction of the 70th Avenue Improvements Phase 2 and 40th Street Project.

University Place, WA, USARequest for Quote/Qualifications (RFQ)
City of University Place9/25/2026
OpenPK-12 School Building Inspection Consultant Pool

Irvine Unified School District is seeking qualified building inspection firms for a consultant pool supporting upcoming PK-12 school facility construction, modernization, renovation, and expansion projects.

2015 Roosevelt, Irvine, CA, USARequest for Quote/Qualifications (RFQ)
Irvine Unified School District9/15/2026
OpenSoil and Materials Engineering Services for Hospital Expansion

The Société québécoise des infrastructures is seeking professional soil and materials engineering services for the design and construction oversight of a transitional clinical module supporting the expansion and renovation of Charles-Le Moyne Hospital's operating room and day-surgery facilities.

2924 BOUL. Taschereau, Longueuil, QC, CanadaRequest for Proposal (RFP)
Government of Canada > Société québécoise des infrastructures > Direction des services professionnels et des modes alternatifs10/5/2026
OpenOn-Call Surveying, Planning, and Engineering Services

The Village of Tularosa is seeking qualified firms for on-call professional surveying, planning, and engineering services for infrastructure and capital projects under a renewable, multi-year agreement.

705 Saint Francis Drive, Tularosa, NM, USARequest for Proposal (RFP)
Village of Tularosa10/9/2026
OpenDivision of the State Architect Project Inspector Services

Citrus Community College District is seeking qualified firms to provide Division of the State Architect project inspector services, including continuous on-site and special inspections for upcoming construction projects.

1000 West Foothill Boulevard, Glendora, CA, USARequest for Quote/Qualifications (RFQ)
Citrus Community College District10/29/2026
OpenVisual and Non-Destructive Vessel Inspections

The U.S. Army Corps of Engineers is seeking visual and non-destructive inspection and testing services for five designated vessels at Sam Rayburn Power Plant in Jasper, Texas.

Jasper, TX, USARequest for Quote/Qualifications (RFQ)Small Business
United States of America > DEPT OF DEFENSE > DEPT OF THE ARMY > W076 ENDIST FT WORTH (KO CONTRACTING DIVISION)9/16/2026
OpenAppraisal Services

The City of Paterson is requesting qualifications from firms to provide appraisal services.

Paterson, NJ, USARequest for Quote/Qualifications (RFQ)
City of Paterson-
OpenMarion Municipal Airport Aeronautical Innovation Center A/E and Environmental Services

The City of Marion, Indiana, is requesting qualifications from architectural and engineering firms for environmental, engineering design, construction engineering, and inspection services for the proposed Marion Municipal Airport Aeronautical Innovation Center Project, contingent on EDA funding and written authorization.

Marion Municipal Airport, Marion, IN, USARequest for Quote/Qualifications (RFQ)
City of Marion10/1/2026
OpenConstruction Monitoring and Inspection Services

Pima County is seeking up to three qualified firms for as-needed construction monitoring and inspection services on Regional Flood Control District and Department of Transportation projects throughout the Tucson metropolitan area, including Green Valley and Ajo.

Pima County, AZ, USARequest for Quote/Qualifications (RFQ)Small Business
Pima County > Procurement Department > Design & Construction Division9/15/2026
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This industry comprises establishments primarily engaged in the provision of professional, scientific, or technical services (except legal services; accounting, tax preparation, bookkeeping, and related services; architectural, engineering, and related services; specialized design services; computer systems design and related services; management, scientific, and technical consulting services; sci…

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