Security Systems Services (except Locksmiths) — NAICS 561621
Browse federal contract opportunities classified under NAICS code 561621 (Security Systems Services (except Locksmiths)). Find active solicitations on SAM.gov, understand size standards, and discover set-aside opportunities for your business.
About NAICS 561621
Security Systems Services (except Locksmiths). This industry falls under the Administrative and Support and Waste Management sector (NAICS codes beginning with 56).
Federal agencies use NAICS code 561621 when posting contract opportunities on SAM.gov to classify the type of work being solicited. Businesses that operate in the security systems services (except locksmiths) space should include this code in their SAM.gov registration and capability statements to ensure they appear in relevant searches.
How to Use NAICS 561621 in Federal Contracting
To compete for federal contracts under NAICS 561621, your business should be registered in SAM.gov with this NAICS code listed in your entity profile. When agencies post solicitations for security systems services (except locksmiths) work, they reference this code to determine the applicable small business size standard and any set-aside eligibility.
If you hold certifications such as 8(a), HUBZone, SDVOSB, or WOSB, you may be eligible for set-aside contracts under this NAICS code. These set-asides limit competition to certified small businesses, giving you a significant advantage in winning federal work.
FedOverwatch monitors SAM.gov daily and can automatically match you with new opportunities under NAICS 561621. Set up your profile with your NAICS codes and certifications to receive personalized contract alerts.
NAICS 561621 Market Intelligence
Based on 3 years of federal award data from USAspending.gov, the security systems services (except locksmiths) market has seen 10,027 contract awards totaling $2.2B in value. The median contract size is $30K, with approximately 279 new awards per month.
Total Awards (3yr)
10,027
Total Value
$2.2B
Median Contract
$30K
Competitors
1,469
Contract value distribution
5,292 small business awards ($735.1M total value,$30K median)
1,469 companies compete for NAICS 561621 contracts
See who's winning, their award values, and where you fit in the market
Explore CompetitorsSize Standards
The SBA establishes size standards for each NAICS code to define what qualifies as a "small business" for federal contracting purposes. For NAICS 561621 (Security Systems Services (except Locksmiths)), the size standard is based on either average annual receipts or number of employees, depending on the specific industry. Meeting the size standard for your primary NAICS code is required to qualify for small business set-aside contracts.
Visit the SBA Size Standards Table to find the current threshold for NAICS 561621.
Recent NAICS 561621 Opportunities
View all →The Department of Defense is procuring camera security systems to enhance surveillance and security capabilities. Key requirements include installation, maintenance, and integration with existing security infrastructure.
The Department of Veterans Affairs is contracting for the replacement and monitoring of panic and intrusion alarm systems at various clinics within the Portland Veterans Affairs Healthcare System. Key requirements include the installation of new alarm systems and ongoing monitoring services to ensure the safety and security of the facilities.
The Department of Veterans Affairs is procuring Lynx software services through a Request for Quotation (RFQ) set aside for Service-Disabled Veteran-Owned Small Business (SDVOSB) concerns.
The Department of Veterans Affairs is procuring fire alarm and fire suppression services for the VA Salt Lake City Medical Center. The key requirements include comprehensive maintenance and support for fire safety systems to ensure compliance with safety regulations.
The Department of Defense is procuring maintenance and sustainment services for the JBA Flightline Entry Control System (FLECS) to ensure its operational readiness. Key requirements include technical support and system upgrades to maintain functionality through August 2026.
The Department of Veterans Affairs is procuring security equipment and software service maintenance for the Boise VA facility. The key requirements include providing ongoing support and maintenance services for the security systems in place to ensure their effective operation.
The Department of the Air Force is procuring security system preventive maintenance services. The key requirements include a firm-fixed-price contract and the provision of maintenance for specified security systems.
The Department of the Air Force is procuring an integrated base defense establishment for a closed restricted network to support the electronic security system, with key requirements including technical approach and past performance.
The Department of the Air Force is procuring an 8(a) Fire Alarm Upgrade, with key requirements including past performance and specific technical specifications.
The U.S. government is procuring maintenance services for Access Control Systems (ACS) doors. Key requirements include ensuring the functionality and security of the ACS doors through regular maintenance and timely repairs.
Frequently Asked Questions
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Set up your profile with your NAICS codes and certifications, and FedOverwatch will automatically match you with relevant security systems services (except locksmiths) opportunities as they're posted on SAM.gov.