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).
| Status | Title | Buyer | Due Date |
|---|---|---|---|
| Open | Mobile BIT and Vehicle Inspection Services for Water Resource Recovery Facility The City of Oxnard is seeking mobile BIT and vehicle inspection services for its Water Resource Recovery Facility. Oxnard, CA, USA•Invitation for/to Bid (IFB/ITB) | City of Oxnard | 7/24/2026 |
| Open | Inspection and General Engineering Services The Township of Toms River is seeking qualifications from vendors to provide inspection and general engineering services. Toms River, NJ, USA•Request for Proposal (RFP) | Township of Toms River | 6/23/2026 |
| Open | Special Inspection and Testing Services for Academy Charter School The Matanuska-Susitna Borough is seeking bids for special inspection and testing services for the new Academy Charter School construction project. Matanuska, AK, USA•Request for Proposal (RFP) | Matanuska-Susitna Borough | 7/1/2026 |
| Open | On-Call Professional Services: Geotechnical, Materials Testing & Special Inspections, and Surveying The Town of Wendell is soliciting Statements of Qualifications from qualified firms for on-call Geotechnical, Materials Testing & Special Inspections, and Surveying services. Wendell, NC, USA•Request for Quote/Qualifications (RFQ) | Town of Cary | 7/1/2026 |
| Open | Air Monitoring and Sampling Services The Village of Rye Brook is seeking sealed bids for air monitoring and sampling services, with bids due on June 25, 2026. Rye Brook, NY, USA•Invitation for/to Bid (IFB/ITB) | Village of Rye Brook | 6/25/2026 |
| Open | Professional Soils Investigation Services for Jefferson Parish Jefferson Parish Department of Public Works is seeking professional soils investigation services on an as-needed basis for a two-year period. Jefferson Parish, LA, USA•Request for Proposal (RFP) | Jefferson Parish > Ecosystems & Coastal Management Department | - |
| Open | Worldwide Technical Inspection Services MTA New York City Transit is seeking worldwide technical inspection and quality audit services for materials at vendor facilities and construction sites. United States•Invitation for/to Bid (IFB/ITB)Minority-Owned BusinessWoman-Owned BusinessVeteran-Owned Business | New York > Metropolitan Transportation Authority > New York City Transit | 7/8/2026 |
| Open | Third Party Elevator Inspection Services Towson University, a state institution in Maryland, is seeking third-party elevator inspection services. Towson, MD, USA•Request for Proposal (RFP) | State of Maryland > University System of Maryland | 6/29/2026 |
| Open | Building, Fire, Electrical, and Plumbing Inspectors - Woodbridge Township Woodbridge Township is seeking full-time Building, Fire, Electrical, and Plumbing Inspectors with valid NJ Department of Community Affairs licenses. Woodbridge, VA, USA•Other | New Jersey League of Municipalities > City of Passaic | 3/25/2027 |
| Open | District-Wide Services, Repairs, Maintenance, and Installation Humble Independent School District is seeking proposals for miscellaneous services, repairs, maintenance, and installation on a rolling basis through March 8, 2027. Humble, TX, USA•Request for Proposal (RFP) | Humble Independent School District | 8/13/2026 |
| Open | Statewide Right of Way Appraisal Review Services The Kentucky Transportation Cabinet is seeking qualified consultants to provide statewide Right of Way Appraisal Review Services on an as-needed basis. Kentucky, USA•Request for Proposal (RFP) | Commonwealth of Kentucky > Transportation Cabinet > Department of Highways | 5/15/2027 |
| Open | Cost Estimating Services, PSA2026-002 The Orange County Sanitation District is soliciting proposals for on-call cost estimating professional services to support their engineering projects. Orange County, CA, USA•Request for Proposal (RFP) | Orange County Sanitation District | 7/30/2026 |
| Open | Professional Real Estate Services for Town of Sewalls Point The Town of Sewalls Point, Florida, is seeking qualifications for Professional Real Estate Services for a one-year contract, with responses due by July 10, 2026. 78 South Sewalls Point Road, Stuart, FL, USA•Request for Quote/Qualifications (RFQ) | Town of Sewall's Point | 7/10/2026 |
| Open | Bridge Maintenance Engineering Term Contract The Montana Department of Transportation is seeking proposals for a term contract to provide bridge maintenance engineering services across the state. Montana, USA•Request for Proposal (RFP) | State of Montana > Department of Transportation | 7/9/2026 |
| Open | Third-Party Elevator Inspection Services for the City of Newark The City of Newark is seeking third-party elevator inspection services, with proposals due by July 7, 2026. Newark, NJ, USA•Request for Proposal (RFP) | City of Newark > Department of Economic Housing & Development | 7/7/2026 |
| Open | Regional Water Supply Plan Professional Services The Mount Rogers Planning District Commission is seeking professional engineering and planning services to develop a regional water supply plan for Bland County, Carroll County, Grayson County, Wythe County, City of Galax, and surrounding towns. Virginia, USA•Request for Proposal (RFP) | George Washington Regional Commission | 7/27/2026 |
| Open | ICE Medical Support Services The U.S. Department of Homeland Security (DHS) is seeking medical support services for ICE personnel, including pre-employment and post-employment medical, psychological, fitness, and drug testing. United States•Sources Sought | United States of America > Department of Homeland Security > Immigration and Customs Enforcement | 7/2/2026 |
| Open | Consulting Engineering Services for Hazard Mitigation Project Franklin Parish Sheriff's Office is seeking consulting engineering services for a hazard mitigation project. Franklin Parish, LA, USA•Request for Quote/Qualifications (RFQ)Disadvantaged BusinessWoman-Owned BusinessVeteran-Owned BusinessMinority-Owned Business | Franklin County | 6/26/2026 |
| Open | West Campus Lawn and Landscape Maintenance Services Grambling State University is seeking bids for West Campus lawn and landscape maintenance services. Grambling, LA, USA•Invitation for/to Bid (IFB/ITB) | Grambling State University | 7/7/2026 |
| Open | Geotechnical Engineering and Testing Services St. Lucie County is seeking qualified firms to provide continuing professional services for geotechnical engineering and testing. St. Lucie County, FL, USA•Request for Quote/Qualifications (RFQ) | St. Lucie County | 7/15/2026 |
| Open | Request for Qualifications for Professional Services Term Consultants The NYS Olympic Regional Development Authority is soliciting qualifications for professional services to establish term consultant contracts for architectural, engineering, and other related professional services. New York, USA•Request for Quote/Qualifications (RFQ)Minority-Owned BusinessWoman-Owned BusinessVeteran-Owned Business | New York > Olympic Regional Development Authority | - |
| Open | Smith Elementary School Stormwater Inspection Services The City of New Britain is soliciting proposals for stormwater inspection services for the Smith Elementary School Project. 142 Rutherford Street, New Britain, CT, USA•Request for Proposal (RFP) | State of Connecticut | 7/2/2026 |
| Open | Forfeiture Petition Services for the City of Philadelphia The City of Philadelphia is seeking forfeiture petition services for its General Support Division. Philadelphia, PA, USA•Request for Proposal (RFP) | City of Philadelphia | 6/26/2026 |
| Open | Appraisal and Valuation Services for Land Transactions The Department of the Interior is issuing a special notice for appraisal and valuation services for various land transactions across multiple states, with price as the primary selection factor. United States•Request for Proposal (RFP) | United States of America > Department of the Interior > Interior Business Center | 6/23/2026 |
| Open | Housing Inspection Services for Howard County The Maryland Department of Housing and Community Development is seeking housing inspection services for Howard County. Howard County, MD, USA•Request for Proposal (RFP) | Maryland > Maryland Stadium Authority | 6/26/2026 |
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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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