Selling, installing, and monitoring security alarm systems. Browse active federal contract opportunities classified under NAICS code 561621.
NAICS code 561621 covers businesses involved in selling, installing, and monitoring security alarm systems. This classification falls under the Administrative & Support Services sector (code 56), which encompasses a wide range of related industries.
Federal agencies use NAICS code 561621 when posting contract opportunities related to security systems services (except locksmiths) on SAM.gov. If your business provides products or services in this area, registering with this NAICS code in SAM.gov will help you discover relevant solicitations and compete for federal contracts.
Small businesses with NAICS code 561621 may also qualify for set-aside programs including 8(a), HUBZone, WOSB (Women-Owned Small Business), and SDVOSB (Service-Disabled Veteran-Owned Small Business). Each NAICS code has a specific size standard that determines whether your business qualifies as "small" for that industry.