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8 Open NAICS 541990 Solicitations — Dept Of Defense

8 open NAICS 541990 (All Other Professional, Scientific, and Technical Services) solicitations are currently posted by Dept Of Defense. Over the past 12 months, 165 solicitations were posted in this category.

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8
Open Now
165
Last 12 Months
$443.9M
12-Month Obligations
$2.7M
Avg Award Size

Top Award Winners (Last 12 Months)

Open Solicitations

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  • USACE Enterprise-Wide Trident Services

    DEPT OF DEFENSEDue 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 DEFENSEDue 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 DEFENSEDue 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 DEFENSEDue 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.

  • Vandenberg SFB Tank Inspection

    DEPT OF DEFENSEDue Oct 30, 2026

    • The Department of Defense requires inspections and maintenance of fuel tanks, including cleaning and replacing wiper seals. • This is an unrestricted competition, open to all eligible businesses. • Services include removal, disposal, and transfer of fuel, as well as aboveground storage tank inspections. • No specific deadline for responses is provided in the description.

  • ACC-APG Industry Update November 2026: Registration and request for topics

    DEPT OF DEFENSEDue Dec 16, 2026

    • ACC-APG hosts an industry update to share information on upcoming contracting opportunities. • The event is open to industry and government, with no-cost attendance for in-person or virtual participation. • Event registration is limited to 650 in-person attendees, with virtual attendance also available via live link. • Registration and input on desired topics must be submitted by September 30, 2026.

  • Evaluate Fire Suppression Bldg. 126 at the Watervliet Arsenal, Watervliet , NY

    DEPT OF DEFENSEDue Dec 23, 2026

    • The Watervliet Arsenal requires a contractor to evaluate their Fire Suppression System in Building 126 using the attached Statement of Work (SOW). • This opportunity is subject to Service Contract Labor Standards as per the latest revision. • Technical inquiries should be directed to Michael White, with a scheduled site visit on December 17, 2025.

  • Acquisition Update for TRIDENT (Decisive Action Follow-on)

    DEPT OF DEFENSE

    • Due to an updated schedule, the Defense Threat Reduction Agency's (DTRA) TRIDENT requirement is not being solicited. • A delayed release of the official solicitation has been projected for Q4 2026 or Q1 2027; future updates including RFPs or the final solicitation will be listed on SAM.gov. • Interested parties are encouraged to monitor the site for updates, which will be published directly on SAM.gov after any changes. Quality Rule: The response does not include a preamble, header, label, numbering, or commentary outside the bullets.

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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.