Installing, monitoring, and maintaining electronic security systems and alarms. Find active federal and state security systems services contracts — AI-scored against your profile across SAM.gov and 200+ portals.
These agencies are the largest buyers of security systems services services and products in the federal government. Each awards contracts under NAICS 561621 regularly — build relationships with their small business offices first.
Add NAICS 561621 to your SAM.gov profile immediately if it accurately reflects your capabilities. Contracting officers search SAM.gov by NAICS code when issuing sole-source awards — if you're not registered, you're invisible to this channel.
Focus on the top buyers listed above. Each has a small business office that issues capability briefing appointments. A 30-minute briefing with a contracting officer who knows your firm is worth more than 10 cold proposals.
8(a), HUBZone, SDVOSB, and WOSB certifications create set-aside opportunities in NAICS 561621. Each certification reduces your competition pool dramatically and adds sole-source contract eligibility up to $4.5M.
Before formal solicitations post, agencies publish Sources Sought notices to gauge market interest. Responding positions you as a known vendor before the competition begins — and your response may shape the final solicitation's requirements.
Set up real-time alerts for NAICS 561621. The first contractors to engage with a solicitation — attending industry days, submitting Q&A questions, contacting the contracting officer — win at significantly higher rates than those who respond at the last minute.
NAICS 561621 covers security systems services. Installing, monitoring, and maintaining electronic security systems and alarms. It is classified under the Administrative Services sector (NAICS 56xx) in the North American Industry Classification System.
The top federal buyers for NAICS 561621 include DoD, DHS, GSA, and others. Each agency has a small business office that actively seeks qualified vendors in this classification.
The average government contract value for NAICS 561621 is $900K. Individual contracts range from micro-purchases under $25,000 to multi-year IDIQs worth hundreds of millions depending on the agency and scope.
Yes — if you want to compete for or receive sole-source awards under NAICS 561621, you must have it registered in your SAM.gov entity profile. Contracting officers use SAM.gov NAICS code searches to find vendors for awards below the simplified acquisition threshold.