Agencies › Department of Defense › NAICS 541990

Department of Defense (DoD): NAICS 541990 — All Other Professional, Scientific, and Technical Services

Open solicitations

• Contractor Owned Contractor Operated Aviation Support Services - US ACIC ISRArmy · Unrestricted (full and open) · Due 07 October 2026
• Romania Follow on (FY27)DLA · Unrestricted (full and open) · Due 08 October 2026
• USACE Enterprise-Wide Trident ServicesArmy · Unrestricted (full and open) · Due 13 October 2026
• Combined Synopsis/Solicitation for Commercial Items Agile Professional Services ("APS ) Department of the ArmyArmy · Small Business Set Aside - Total · Due 13 October 2026
• 711th HPW Mission Support Services MAC IDIQAir Force · 8(a) Set-Aside (FAR 19.8) · Due 15 October 2026
• Vandenberg SFB Tank InspectionArmy · Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14) · Due 30 October 2026
• ACC-APG Industry Update November 2026: Registration and request for topicsArmy · Unrestricted (full and open) · Due 15 December 2026
• Golden Dome for America Commercial Solutions OpeningImmediate Office of the Secretary of Defense · No Set aside used · Due 01 April 2031

How DoD NAICS 541990 spends

FY2021$2.5B

FY2022$3.1B

FY2023$2.8B

FY2024$4.5B

FY2025$3.7B

FY2026$2.1B

FY2027*$14K

DoD NAICS 541990 contracts expiring in the next 18 months

611 contracts worth $7.4B.

Contracts and task orders from USASpending.gov (FPDS) whose period of performance ends within 18 months, valued at $25K or more, excluding IDIQ ceilings and government-owned, contractor-operated facility contracts. Co-terminous orders from the same vendor, agency, NAICS and PSC ending in the same month are grouped. The solicitation date is an estimate (about six months before the contract ends): FedSift does not know whether a follow-on has been posted, so check SAM.gov.

NAICS 541990 across every agency → · Everything DoD has open →