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NAICS 561621

NAICS 561621 Security Systems Services (except Locksmiths): 10 open RFPs

Open federal, state and local solicitations coded 561621 (Security Systems Services (except Locksmiths)), soonest deadline first. SBA small-business size standard for this NAICS: $25M revenue.

Updated 44 min ago · 10 open

Open now10notices under 561621
SBA size standard$25M revenueto qualify as small
Agencies buying3with an open notice

What government contracts are open under NAICS 561621?

As of October 8, 2026, RFPFinder lists 10 open government RFPs under NAICS 561621 (Security Systems Services (except Locksmiths)); the most active buyer is DEPT OF DEFENSE with 7 open, and the next deadline is Oct 14. The SBA small-business size standard for this NAICS code is $25M revenue.

Due Nov629d left
Electronic Security Systems
Dept of Defense · IN · due 1:00 PM ET · Q&A Oct 26
NewSB set-asideLocal presenceSecurity · betaEquipment Maintenance & Repair · beta
4 docs
Due Jan ’271397d left
Fire Alarm BPA Fort Drum NY
Dept of Defense · NY · due 12:00 PM ET
PresolicitationSB set-asideEquipment Maintenance & Repair · beta
Docs at source
Due–no date
Electronic Ramp Gate PM
Dept of Defense · OK · no deadline stated
PresolicitationSB set-asideEquipment Maintenance & Repair · beta
Docs at source
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Questions

What is NAICS 561621?

NAICS 561621 is the 2022 NAICS industry code for Security Systems Services (except Locksmiths). The SBA small-business size standard for it is $25M revenue.

Who buys under NAICS 561621?

DEPT OF DEFENSE (7 open), VETERANS AFFAIRS, DEPARTMENT OF (2 open) and GENERAL SERVICES ADMINISTRATION (1 open) have the most open notices under NAICS 561621 on RFPFinder right now.

Where do NAICS 561621 RFPs get posted?

Federal notices under NAICS 561621 get posted on SAM.gov, and state and local buyers post on their own procurement portals. RFPFinder collects both into this list, soonest deadline first.

Can I get alerts for NAICS 561621 RFPs?

Yes. Pro members ($39/mo) add NAICS codes to their fit profile, and matching notices are badged and alerted. The free daily digest follows one category or one state.

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