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50 Open NAICS 541990 Government Contracts

50 open solicitations are currently posted under NAICS 541990 (All Other Professional, Scientific, and Technical Services).
Over the past 12 months, agencies posted 442 solicitations, with DEPT OF DEFENSE, INTERIOR, DEPARTMENT OF THE, COMMERCE, DEPARTMENT OF among the top buyers.
Data is refreshed daily from SAM.gov.

50
Open Now
442
Last 12 Months
$1.7B
12-Month Obligations
$3.7M
Avg Award Size

Top Buying Agencies (Last 12 Months)

Top Award Winners (Last 12 Months)

Top Contract Action Leaders (Last 12 Months)

Open Solicitations

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  • Technical Support Services for the FHWA Office of Safety and Operations Research & Development

    TRANSPORTATION, DEPARTMENT OFNAICS 541990Due Oct 9, 2026

    • FHWA seeks technical support services for safety and operations research at the Turner-Fairbank Highway Research Center. • This is a market survey for planning purposes, with NAICS code to be determined based on responses. • Research objectives include understanding crash causes, injury severity factors, and operational conditions affecting safety performance. • Responses are sought to identify capable sources and their size classification.

  • Notice of Intent to Sole Source – National Marrow Donor Program – service agreement

    HEALTH AND HUMAN SERVICES, DEPARTMENT OFNAICS 541990Due Oct 12, 2026

    • NIH seeks unrelated donor search, donor coordination, and graft procurement services for hematopoietic stem cell transplantation. • This acquisition is being conducted under FAR Part 13 Simplified Acquisition Procedures, exempt from FAR Part 6 Competition Requirements. • Services include transportation and regulatory support for stem cell transplantation, with a purchase order NTE $900,000. • Comments are due prior to the unspecified closing date via email to Ryssa.nix@nih.gov.

  • USACE Enterprise-Wide Trident Services

    DEPT OF DEFENSENAICS 541990Due Oct 13, 2026

    • USACE seeks enterprise-wide Trident services with engineering and technical support. • This Sources Sought Notice is set aside under NAICS 541990 with a $19.5M size standard. • Services will be provided across three reduced regions as outlined in the updated table. • Responses are due, but no specific deadline is provided in the update notice.

  • Combined Synopsis/Solicitation for Commercial Items Agile Professional Services ("APS”) Department of the Army

    DEPT OF DEFENSENAICS 541990Due Oct 14, 2026

    • The Army requires Agile Professional Services under a flexible framework to support technical and professional operations. • This is a 100% Total Small Business Set-Aside under NAICS 541990 with a $19.5M size standard. • The contract type is Labor Hours/T&M to support critical operations with a flexible framework. • Proposals are being requested with no written solicitation to be issued.

  • Combined Synopsis/Solicitation for Commercial Items Agile Professional Services ("APS”) Department of the Army

    DEPT OF DEFENSENAICS 541990Due Oct 14, 2026

    • The Army requires Agile Professional Services to support technical and professional operations. • This is a 100% Total Small Business Set-Aside under NAICS 541990. • The contract type is Labor Hours/T&M to support critical operations. • Proposals are being requested with no specific deadline stated.

  • 711th HPW Mission Support Services MAC IDIQ

    DEPT OF DEFENSENAICS 541990Due Oct 15, 2026

    • The government is soliciting proposals for an unspecified requirement, with details in attached documents and amendments. • This is an unrestricted, full and open competition, but specific NAICS code or set-aside details are not mentioned. • The proposal due date has been extended, now due Thursday, 15 October 2026 10:00AM EDT. • Amendment 0004 and Q&A are expected to post, with the official SF 30 solicitation amendment formally posted on October 6, 2026.

  • 711th HPW Mission Support Services MAC IDIQ

    DEPT OF DEFENSENAICS 541990Due Oct 15, 2026

    • The government is soliciting proposals for an unspecified service or supply. • This opportunity is unrestricted, with no stated set-aside or small business preference. • ODC Burden Rate Matrix and other solicitation details are provided in attached amendment documents. • Proposals are now due October 15, 2026, 10:00AM EDT.

  • 711th HPW Mission Support Services MAC IDIQ

    DEPT OF DEFENSENAICS 541990Due Oct 15, 2026

    • The government is soliciting proposals for an unspecified service or supply, with multiple amendments issued. • This opportunity appears to be unrestricted, with no mention of set-aside programs or specific small business eligibility. • Proposal due date is now October 15, 2026, at 10:00 a.m. EDT, following multiple amendments and extensions. • Offers are due October 15, 2026.

  • 711th HPW Mission Support Services MAC IDIQ

    DEPT OF DEFENSENAICS 541990Due Oct 15, 2026

    • The Air Force Research Laboratory (AFRL) is soliciting proposals for mission support services. • This is an unrestricted, full and open competition with no specified NAICS code or small business set-aside. • The solicitation includes requirements for CMMC and a self-evaluation sheet. • Proposals are due October 15, 2026, at 10:00 a.m. EDT.

  • Q201--HCR- Medical Physicist Contract for Radiology and Dental (VA-26-00023708) Base Contract year 11/01/2026-10/31/2027 VA Finger Lakes

    VETERANS AFFAIRS, DEPARTMENT OFNAICS 541990Due Oct 15, 2026

    • The Finger Lakes Health VA needs medical physicist services for its Radiation Safety Program. • This acquisition is not explicitly set aside, implying an unrestricted competition. • Services must support VA Radiation Safety Program compliance starting November 1st, 2026, for 1 year plus 4 optional years. • Services are needed as soon as possible after November 1st, 2026.

  • U.S. Embassy Mexico—International Narcotics & Law Enforcement Affairs (INL Mexico) CONOCER Criminal Analyst Certification Services

    STATE, DEPARTMENT OFNAICS 541990Due Oct 15, 2026

    • The U.S. Embassy in Mexico requires certification services for Government of Mexico crime analysts. • This acquisition is unrestricted, with no specified set-aside or small business program. • The contractor must certify analysts in the CONOCER Competency Standard for high-impact crimes and investigations units. • No response deadline is specified in the provided description.

  • US Army High Altitude Intelligence, Surveillance, and Reconnaissance (HA-ISR) Support

    DEPT OF DEFENSENAICS 541990Due Oct 16, 2026

    • The Army requires support for transitioning airborne ISR platforms from COCO to GOGO models with specialized equipment and personnel. • This is a sole-source acquisition intended for Sierra Nevada Corporation, L3Harris Technologies, and MAG Aerospace under FAR 6.302-1. • The work includes providing uninterrupted access to integrated mission equipment and cleared personnel for a seamless transition to the HADES program. • Responses are sought for market research purposes, but no deadline is specified for this notice.

  • Maintenance Service for Portable Fire Extinguishers

    TREASURY, DEPARTMENT OF THENAICS 541990Due Oct 19, 2026

    • The Bureau of Engraving and Printing requires Portable Fire Extinguisher Maintenance Services at its DC Facility. • This acquisition is set-aside for small business concerns under NAICS 541990 (Other Professional, Scientific, and Technical Services). • Maintenance services are for the BEP DC Facility, with full details in the attached RFQ and attachments.

  • Maintenance Service for Portable Fire Extinguishers

    TREASURY, DEPARTMENT OF THENAICS 541990Due Oct 22, 2026

    • The Bureau of Engraving and Printing requires Portable Fire Extinguisher Maintenance Services at its DC Facility. • Acquisition is set aside for small business concerns under NAICS 541990 (Other Professional, Scientific, and Technical Services). • Services are for the BEP DC Facility, with details in the attached RFQ and attachments. • Quotes are due October 22, 2026, at 3:00 PM (ET).

  • PATRIOT Weapon System Depot-Level Diagnostics, Repair, and Upgrade Support Services (FMS)

    DEPT OF DEFENSENAICS 541990Due Oct 22, 2026

    • The U.S. Army requires depot-level diagnostics and repair/recertification/upgrade of PATRIOT Weapon Systems for FMS customers. • This is a sources-sought announcement for informational and planning purposes, not a solicitation. • The proposed performance period spans six base years from July 1, 2027, to June 30, 2033, for PATRIOT system assemblies and subassemblies. • Responses are due October 22, 2026, by 4:00 p.m.

Recently Awarded (Last 90 Days)

NAICS 541990 by Set-Aside Type

Frequently Asked Questions

What professional services contracts does the federal government award (NAICS 54)?

NAICS sector 54 (Professional, Scientific, and Technical Services) is one of the largest federal contracting sectors, covering IT consulting, engineering, R&D, management consulting, architecture, legal services, and accounting. Major buyers include DoD, DHS, VA, and civilian agencies across all categories.

How do I find federal contracting opportunities?

Federal contracting opportunities are posted on SAM.gov (System for Award Management). You can search by keyword, NAICS code, set-aside type, agency, and response deadline. FedOps aggregates and enriches SAM.gov data daily so you can filter and track opportunities in one place.

What is a set-aside in federal contracting?

A set-aside is a procurement reserved for a specific category of small business. Common set-asides include SDVOSB (Service-Disabled Veteran-Owned), 8(a), WOSB (Women-Owned), HUBZone, and Small Business. Only businesses that meet the eligibility requirements can bid on a set-aside contract.

How do I register to bid on federal contracts?

You must register your business in SAM.gov (sam.gov), which is free. You'll need a DUNS/UEI number, NAICS codes for your business, bank account information for electronic funds transfer, and applicable certifications (8(a), SDVOSB, WOSB, etc.) if bidding on set-asides. Registration is renewed annually.