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
OpenNSPIRE Inspection Services

The Middletown Housing Authority is seeking licensed inspectors to conduct approximately 350 annual and occasional special NSPIRE inspections for its 349 housing units.

Middletown, NJ, USA•Request for Proposal (RFP)Minority-Owned Business
Middletown Housing Authority10/14/2026
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, USA•Request for Quote/Qualifications (RFQ)
Washington > Office of Minority and Women's Business Enterprises12/31/2026
OpenChapter 1 and 17 Storm Drain Inspections

Lexington School District Four is seeking third-party inspectors for Chapter 1 and Chapter 17 storm drain inspections at 140 Lewis Rast Road in Swansea, South Carolina.

140 Lewis Rast Road, Swansea, SC, USA•Invitation for/to Bid (IFB/ITB)
Lexington School District Four11/2/2026
OpenContract Administration and Construction Inspection for Intersection Improvements

The City of Lake Forest is seeking contract administration and construction inspection services for two intersection improvement projects involving additional turn lanes, roadway widening, traffic signals, pedestrian facilities, and related infrastructure.

Lake Forest, CA, USA•Request for Proposal (RFP)
City of Lake Forest > Public Works Department10/21/2026
ClosedOn-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, USA•Request for Proposal (RFP)
Tularosa Municipal Schools10/9/2026
OpenFinancial, Accounting, Audit, Systems, and Advisory Services

The Nunavut Housing Corporation is seeking proposals for standing-offer financial, accounting, audit, systems, and advisory services under a 12-month contract.

Iqaluit, NU, Canada•Request for Proposal (RFP)
Nunavut > Nunavut Housing Corporation10/19/2026
OpenFacility Inspection and Diagnostic Services

The Hawaii Department of Transportation is seeking facility inspection and diagnostic services for the Highways Oahu District under a one-year contract.

727 Kakoi Street, Honolulu, HI, USA•Request for Quote/Qualifications (RFQ)
Hawaii > Department of Transportation > Highways > Highways Oahu District10/16/2026
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, USA•Request for Quote/Qualifications (RFQ)
University of Hawaii-
ClosedRequest for Qualifications: Architectural, Engineering, Land Surveying, Materials Testing, Testing and Balancing, and Commissioning Services

Springfield Public Schools is seeking qualifications from firms for architectural, engineering, land surveying, materials testing, testing and balancing, and commissioning services to support future construction projects.

Springfield, MO, USA•Request for Quote/Qualifications (RFQ)
The School District of Springfield R-1210/9/2026
OpenProfessional Services for Ocean County Vocational Technical Schools

Ocean County Vocational Technical School Board of Education is requesting sealed proposals for auditing, architectural, engineering, labor and negotiation consulting, legal, and qualified marketing professional services for a one-year contract.

Toms River, NJ, USA•Request for Proposal (RFP)
Ocean County Vocational Technical Schools10/20/2026
OpenPrequalified Construction Management and Inspection Services

The Town of Parker is seeking qualified professional consultants for prequalified construction management and inspection services, including construction administration, field inspection, materials testing, and related engineering support for projects up to $500,000 each.

Parker, CO, USA•Request for Quote/Qualifications (RFQ)
Town of Parker10/28/2026
Open2027 Pre-Qualified Technical Registrants

Mohave County is seeking Statements of Qualifications from firms in seven technical disciplines for its 2027 pre-qualified registrants list, including architecture, engineering, geology, surveying, inspection, landscape architecture, and alarm services.

Mohave County, AZ, USA•Request for Quote/Qualifications (RFQ)
Mohave County > Department of Procurement11/4/2026
OpenTraffic Signal Mast Arm Inspection Services

The City of Port St. Lucie is seeking contractors to inspect traffic signal mast arms and overhead sign structures, prepare detailed reports, and provide related administrative and project management support under a five-year contract.

Port St. Lucie, FL, USA•Invitation for/to Bid (IFB/ITB)
Town of Palm Beach > Procurement and Contracts Management Division10/30/2026
ClosedBridge General Consulting and Inspection Services

The New York State Bridge Authority is seeking licensed professional engineers to provide general consulting, bridge inspections, design, reporting, and construction inspection services for its Hudson River crossings and Walkway Over the Hudson.

New York, USA•Request for Proposal (RFP)Minority-Owned BusinessWoman-Owned Business
New York State Bridge Authority10/9/2026
OpenRight-of-Way Appraisal and Acquisition Services

The City of Hanford is seeking proposals for right-of-way appraisal, appraisal review, and related acquisition consulting for three properties needed for a federally funded traffic signal project at 9th Avenue and E. Lacey Boulevard.

Hanford, CA, USA•Request for Proposal (RFP)
City of Fresno > Purchasing Division10/14/2026
OpenBridge 185 Construction Inspection Services

Montgomery County, Pennsylvania, is seeking a qualified consultant or consulting team to provide full-time on-site construction oversight and inspection for the replacement of Bridge 185 on Germantown Pike over Five Mile Run.

East Norriton Township, PA, USA•Request for Proposal (RFP)
Montgomery County10/15/2026
OpenBorough Auditor Services

The Borough of Pompton Lakes is seeking qualification statements from firms to provide borough auditor professional services for calendar year 2027.

25 Lenox Avenue, Pompton Lakes, NJ, USA•Request for Quote/Qualifications (RFQ)
Borough of Pompton Lakes11/20/2026
OpenChicago Construction Inspection Services

The U.S. Department of Housing and Urban Development is seeking construction inspection services in Chicago, Illinois under an SBA set-aside.

Chicago, IL, USA•Request for Proposal (RFP)Small Business
United States of America > HOUSING AND URBAN DEVELOPMENT, DEPARTMENT OF > CPO : CHICAGO OPERATIONS BRANCH10/14/2026
OpenConvergence Hall Code and Special Inspection Services

The State of Utah Division of Facilities Construction and Management is seeking prequalified code inspection contractors to provide code, special inspection, materials testing, and related management services for the approximately 163,000-square-foot Convergence Hall project in Draper, Utah, with an estimated inspections budget of $650,000.

Draper, UT, USA•Request for Proposal (RFP)
State of Utah > Division of Facilities Construction and Management10/14/2026
OpenConstruction Engineering and Inspection Services

Hillsborough County is seeking professional firms to provide construction engineering and inspection, materials testing, utility coordination, geotechnical services, and contract administration for capital improvement and work-order projects under a three-year, $5 million term contract.

Hillsborough County, FL, USA•Request for Proposal (RFP)
Hillsborough County > Capital Programs Department10/29/2026
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, USA•Request 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, Canada•Other
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, USA•Request for Proposal (RFP)
United States of America > HOMELAND SECURITY, DEPARTMENT OF > US COAST GUARD-
OpenEngineering, Planning and Professional Consulting Services Roster

The Municipality of Clarington is seeking prequalification responses from firms providing quantity surveying and cost estimating services for inclusion in a 36-month professional consulting roster, with future assignments potentially valued up to $250,000.

Clarington, ON, Canada•Request for Quote/Qualifications (RFQ)
Municipality of Clarington10/30/2026
OpenMatawinie Property Assessment Services

MRC de Matawinie is seeking professional property assessment services for local municipalities and the unorganized territory within its jurisdiction under a 36-month contract.

Matawinie, QC, Canada•Request for Proposal (RFP)
Quebec > MRC de Charlevoix-Est10/22/2026
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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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