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
OpenAnimal Science Renovation Special Inspection and Testing Services

The State of Utah Division of Facilities Construction and Management is seeking DFCM-approved special inspection and materials testing services for the Utah State University Animal Science Renovation and Expansion project, with an estimated inspections budget of $192,438.

Utah State University, Logan, UT, USA•Request for Proposal (RFP)
State of Utah > Division of Facilities Construction and Management10/29/2026
OpenFryar Avenue Shared Use Trail Construction Management Services

The City of Sumner is seeking qualifications from consultants to provide construction management, inspection, administration, document control, and special inspection services for the Fryar Avenue Shared Use Trail Project.

Sumner, WA, USA•Request for Quote/Qualifications (RFQ)
City of Sumner11/4/2026
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
OpenTask Order Professional Services Agreement

California State University San Marcos is seeking qualified professional service providers for an as-needed task order agreement covering architectural and engineering, inspection, MEP engineering, materials testing, and signage and wayfinding services.

333 South Twin Oaks Valley Road, San Marcos, CA, USA•Request for Proposal (RFP)
California State University > San Marcos11/17/2026
OpenHighway Construction Management, Inspection, and Materials Testing

The Colorado Department of Transportation is seeking engineering consultants for construction management, construction inspection, and materials testing for the US 40 Red Dirt Hill Safety Improvements Phase II project in Winter Park.

Winter Park, CO, USA•Request for Proposal (RFP)
Colorado > Department of Transportation11/5/2026
OpenOn-Call Construction Management Services

San Joaquin County Public Works is seeking qualified firms for on-call construction management, administration, and inspection services for county projects, with an initial two-year term and possible extensions.

San Joaquin County, CA, USA•Request for Quote/Qualifications (RFQ)
San Joaquin County > Department of Public Works11/13/2026
OpenNew Middle School Quality Assurance and Materials Testing Services

The North Kingstown School Department is seeking a contractor to provide quality assurance, construction inspection, and materials testing services for the New Wickford Middle School.

250 Tower Hill Road, North Kingstown, RI, USA•Request for Proposal (RFP)Minority-Owned BusinessWoman-Owned Business
Town of North Kingstown > North Kingstown School Department10/27/2026
OpenGeneral Engineering Support Services

Arenas Valley Mutual Domestic Water Consumers Association is seeking surveying, planning, and engineering services for general engineering support under a qualifications-based RFP.

Silver City, NM, USA•Request for Proposal (RFP)
Arenas Valley Mutual Domestic Water Consumers Association11/30/2026
OpenMiscellaneous Professional Services Master Contract

The Village of Estero is seeking qualified firms for an as-needed master contract covering professional consulting, engineering, surveying, environmental, planning, and related services, with a three-year initial term and possible renewal.

9401 Corkscrew Palms Circle, Estero, FL, USA•Request for Proposal (RFP)Disadvantaged BusinessMinority-Owned Business
Village of Estero11/16/2026
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 County11/4/2026
OpenOn-Call Deputy County Surveyor Services

Imperial County Department of Public Works is seeking two consultants for three-year, on-call Deputy County Surveyor assistance, including surveying, document review and preparation, field surveys, research, and related staff support.

Imperial County, CA, USA•Request for Proposal (RFP)
Imperial County > Public Works Department > Facilities Management11/2/2026
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
OpenFY2027 Professional Services

The City of Baytown is seeking statements of qualifications from qualified Texas-registered firms for one or more professional service disciplines under an FY2027 contract.

Baytown, TX, USA•Request for Quote/Qualifications (RFQ)
City of Baytown11/4/2026
OpenSurveying, Planning, and General Engineering Services

Casas Adobes Mutual Domestic Water Consumers Association is seeking professional surveying, planning, and general engineering services through a qualifications-based competitive proposal.

Las Cruces, NM, USA•Request for Proposal (RFP)
Casas Adobes Mutual Domestic Water Consumers Association11/24/2026
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
OpenThird-Party Quality Inspection Services

Manitoba Hydro is seeking as-needed third-party quality inspection services across Manitoba and international regions under a five-year contract.

Manitoba, Canada•Request for Proposal (RFP)
Manitoba Hydro11/4/2026
OpenConstruction Engineering and Inspection Services for CDBG-DR Projects

Hillsborough County is seeking proposals for construction engineering and inspection services, including materials testing 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
OpenCounty Accounting Services

Essex County is seeking accounting services through a two-year contract beginning January 1, 2027.

Essex County, NJ, USA•Request for Proposal (RFP)
Essex County > Office of Treasurer11/5/2026
Open2027 Planning and Zoning Professional Services

The City of Summit Planning Board and Zoning Board of Adjustment are seeking qualification statements from firms to provide 2027 engineering, planning, attorney, and stenographic services.

Summit, NJ, USA•Request for Quote/Qualifications (RFQ)
City of Summit > Zoning Board of Adjustment10/29/2026
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 > U.S. 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
OpenSoils and Materials Engineering Services for Youth and Family Centres

The Societe quebecoise des infrastructures is seeking professional soils and materials engineering services for the design and construction oversight of new Batshaw youth and family centres at its Beaconsfield campus.

141 Avenue Elm, Beaconsfield, QC, Canada•Request for Proposal (RFP)
Government of Canada > Société québécoise des infrastructures > Direction des services professionnels et des modes alternatifs11/13/2026
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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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