🔒Security Systems

Federal Security Systems Contracts

NAICS-filtered government bids for security system installation, surveillance equipment, and guard services

View Active Security Systems Bids →See Pricing

Federal facilities across DoD, GSA, DHS, and VA require ongoing investment in access control, surveillance and camera systems, alarm monitoring, and guard services. Physical security spend at federal sites is steady and growing, but these solicitations are easy to miss buried in SAM.gov's general services listings. NAICS Direct pre-filters every open solicitation to NAICS codes 561621, 334290, and 561612 so you see only security-relevant bids.

NAICS Codes for Security Systems Contracts

561621
Security Systems Services (except Locksmiths)
Federal solicitations using this NAICS code appear in your NAICS Direct feed
334290
Other Communications Equipment Manufacturing — includes surveillance and security equipment
Federal solicitations using this NAICS code appear in your NAICS Direct feed
561612
Security Guards and Patrol Services
Federal solicitations using this NAICS code appear in your NAICS Direct feed

Why Security Systems Contractors Use NAICS Direct

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Covers security system installation, surveillance equipment, and guard service solicitations

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Color-coded urgency flags on your dashboard so you never miss a closing date

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Filter by agency: DoD, GSA, VA, and more

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One-click access to the full solicitation on SAM.gov

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Urgency filtering by closing window (2 days, this week, or open)

Ready to find your next security systems contract?

NAICS Direct is free to use. Browse active security systems bids right now — no account required.

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Frequently Asked Questions

What NAICS code is used for federal security systems contracts?

Most federal security system installation and monitoring contracts use NAICS 561621 (Security Systems Services, except Locksmiths). Related equipment and guard service solicitations may use 334290 or 561612 — NAICS Direct monitors all three.

How do I find government security systems contracts on SAM.gov?

Go to SAM.gov and filter by NAICS 561621, or use NAICS Direct — we do that filtering automatically and show only open, active bids with daily-synced deadlines.

Are small businesses competitive for federal security contracts?

Yes. Many security systems and guard services solicitations are set aside for small businesses, and Service-Disabled Veteran-Owned and 8(a) firms are especially competitive in this space.

What agencies buy the most security systems services?

The Department of Defense, Department of Homeland Security, GSA Federal Protective Service, and VA facilities are the largest buyers of physical security systems and monitoring services.

Is NAICS Direct free to use?

Yes — anyone can browse all active security systems bids free, no signup. Paid plans start at $14/month and add more NAICS niches plus priority support.