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Home › NAICS sectors › Professional, Scientific, and Technical Services NAICS 541990 Contracts: All Other Professional, Scientific, and Technical Services As of 2026-10-17 , 19 open federal contract opportunities are listed here: 10 close within 14 days and 16 (84%) are set aside for small businesses. The busiest buyer is Department of the Army (7) and the most common place of performance is Florida (2).
Open federal contract notices classified under NAICS 541990, All Other Professional, Scientific, and Technical Services . Check the SBA size standard for this code to see whether you count as a small business.
As of 2026-10-17 : 19 open opportunities on this page; soonest deadline Oct 21, 2026 ; 7 due within 7 days; 16 set aside for small businesses.
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Open opportunities Sort: Deadline (soonest first) Newest posted
Open opportunities. Source: SAM.gov Opportunity Type Set-aside Place of performance Response deadline Special Notice - Short Term Materiel Fielding Support Modification Nov 2026 Special Notice Small Business Not specified Oct 21, 2026 Request for Information (RFI) - Medical Fielding Short-Term Sources Sought Open to all Not specified Oct 21, 2026 Explosive Characterization and Technical Service Support Special Notice Open to all Vicksburg, Mississippi Oct 22, 2026 Maintenance Service for Portable Fire Extinguishers Combined Synopsis/Solicitation Small Business Washington, District of Columbia Oct 22, 2026 ANSI Inspections and Dielectric Testing at DDSP - SP3300-27-Q-0003 Solicitation Open to all Pennsylvania Oct 22, 2026 CEQ Solutions Marketplace and Public-Private Partnership Engagement Support Task Order 094-80JSC026F0110 Special Notice Small Business Houston, Texas Oct 23, 2026 Industrial Control Technician Sources Sought Small Business Colorado Oct 23, 2026 Combined Synopsis/Solicitation for Commercial Items Agile Professional Services ("APS�) Department of the Army Combined Synopsis/Solicitation Small Business Orlando, Florida Oct 25, 2026 711th HPW Mission Support Services MAC IDIQ Combined Synopsis/Solicitation 8(a) Wright Patterson Afb, Ohio Oct 30, 2026 Vandenberg SFB Tank Inspection Combined Synopsis/Solicitation Service-Disabled Veteran-Owned Small Business Not specified Oct 30, 2026 TRAINING INSTRUCTOR OPERATOR SERVICES SUPPORT II Combined Synopsis/Solicitation Small Business Florida Nov 9, 2026 Quality Assurance Services - Civil Works, Interagency and International Services (IIS), and Military Construction Projects in Puerto Rico and U.S. Virgin Islands Solicitation Small Business Not specified Nov 13, 2026 MARINE RESOURCE TECHNICAL SERVICES THROUGHOUT THE NAVAL FACILITIES ENGINEERING SYSTEMS COMMAND (NAVFAC) PACIFIC AREA OF RESPONSIBILITY Presolicitation Small Business Jbphh, Hawaii Dec 7, 2026 One Acquisition Solution for Integrated Services Plus (OASIS+) Total Small Business Set-Aside Continuously Open Solicitation Small Business Not specified Jan 11, 2027 One Acquisition Solution for Integrated Services Plus (OASIS+) 8(a) Small Business Set-Aside Continuously Open Solicitation Solicitation 8(a) Not specified Jan 11, 2027 One Acquisition Solution for Integrated Services Plus (OASIS+) Historically Underutilized Business Zone (HUBZone) Small Business Set-Aside Continuously Open Solicitation Solicitation HUBZone Not specified Jan 11, 2027 One Acquisition Solution for Integrated Services Plus (OASIS+) Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside Continuously Open Solicitation Solicitation Service-Disabled Veteran-Owned Small Business Not specified Jan 11, 2027 One Acquisition Solution for Integrated Services Plus (OASIS+) Women-Owned Small Business (WOSB) Set-Aside Continuously Open Solicitation Solicitation Women-Owned Small Business Not specified Jan 11, 2027 One Acquisition Solution for Integrated Services Plus (OASIS+) Women-Owned Small Business (WOSB) Set-Aside Solicitation Women-Owned Small Business Not specified Jan 11, 2027
FAQ How many opportunities are open here? 19, based on SAM.gov public data retrieved 2026-10-17 . We list up to 3,000 of the newest active notices site-wide, so SAM.gov may show more.
Which one closes first? Special Notice - Short Term Materiel Fielding Support Modification Nov 2026 — responses due Oct 21, 2026 , 10:00 AM (UTC-04:00).
Does it cost anything to bid? No fee is charged to view notices or to register in SAM.gov. Registration is free; never pay anyone who claims to register you or to sell access to these notices.
Cite this page Journalists, librarians and researchers are welcome to quote and link to this page. Suggested citation (2026):
Set-Aside. "NAICS 541990 Contracts: All Other Professional, Scientific, and Technical Services." https://setasidebrief.com/naics/541990/. Data retrieved Oct 17, 2026 from SAM.gov Contract Opportunities (U.S. General Services Administration).Weekly numbers are on the weekly stats report ; calendar files, CSV and an embeddable widget are on downloads & embed . Counts come from our daily copy of public data, not from an official release.
Set-Aside is an independent, unofficial website. It is not affiliated with, endorsed by, or operated by SAM.gov, the U.S. General Services Administration, or any government agency. Data comes from the public SAM.gov daily extract and may be incomplete or out of date. We do not show contracting officers' contact details; find them in the official notice. Registering in SAM.gov is free. (Data retrieved: 2026-10-17 )