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Department of Defense (DoD): NAICS 561621 — Security Systems Services (Except Locksmiths)

8open solicitations
$160.5Mobligated in FY2026
242contracts ending within 18 months

Open solicitations

How DoD NAICS 561621 spends

FY2021$252.7M
FY2022$422.5M
FY2023$341.5M
FY2024$214.7M
FY2025$301.1M
FY2026$160.5M
Contract obligations by federal fiscal year (October–September), from USASpending.gov award data. IDIQ ceilings are excluded. * The current year is partial, and USASpending lags 4–8 weeks.

DoD NAICS 561621 contracts expiring in the next 18 months

242 contracts worth $683.1M.

IncumbentBuyerWhatValueEndsEst. solicitationRecord
M. C. DEAN, INC.Washington Headquarters Services561621 Security Systems Services (Except Locksmiths)$211K08 October 2026Now / imminentUSASpending
M. C. DEAN, INC.Washington Headquarters Services561621 Security Systems Services (Except Locksmiths)$128K (2 orders)10 October 2026Now / imminentUSASpending
USIDC, INC.Air Force561621 Security Systems Services (Except Locksmiths)$235K14 October 2026Now / imminentUSASpending
M. C. DEAN, INC.Washington Headquarters Services561621 Security Systems Services (Except Locksmiths)$61K15 October 2026Now / imminentUSASpending
ADVANTOR SYSTEMS II LLCAir Force561621 Security Systems Services (Except Locksmiths)$162K19 October 2026Now / imminentUSASpending
DIGI SECURITY SYSTEMS, LLCAir Force561621 Security Systems Services (Except Locksmiths)$99K19 October 2026Now / imminentUSASpending
TROFHOLZ TECHNOLOGIES, INC.Navy561621 Security Systems Services (Except Locksmiths)$320K26 October 2026Now / imminentUSASpending
MEDIA PLUMBING & HEATING INCArmy561621 Security Systems Services (Except Locksmiths)$2.5M30 October 2026Now / imminentUSASpending
PLANNING, INC.Defense Information Systems Agency561621 Security Systems Services (Except Locksmiths)$1.1M30 October 2026Now / imminentUSASpending
M. C. DEAN, INC.Washington Headquarters Services561621 Security Systems Services (Except Locksmiths)$1.8M (3 orders)31 October 2026Now / imminentUSASpending
JH ELEKTROANLAGEN GMBH & CO. KGArmy561621 Security Systems Services (Except Locksmiths)$813K31 October 2026Now / imminentUSASpending
MEDIA PLUMBING & HEATING INCArmy561621 Security Systems Services (Except Locksmiths)$445K31 October 2026Now / imminentUSASpending
MONACO ENTERPRISES, INC.Air Force561621 Security Systems Services (Except Locksmiths)$495K01 November 2026Now / imminentUSASpending
DRAKE CONSULTING LLCAir Force561621 Security Systems Services (Except Locksmiths)$118K02 November 2026Now / imminentUSASpending
COLSA SOLUTIONS INCArmy561621 Security Systems Services (Except Locksmiths)$417K07 November 2026Now / imminentUSASpending

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.

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