SECOM CO., LTD. · Year ended March 2026
Beyond the alarm sticker: SECOM's expanding world of services.
SECOM is widely recognized for guards, alarm systems and monitoring stickers. Security remains economically central, alongside businesses in fire protection, healthcare and geospatial information.
¥1,256.8 billion in group revenue
Security remains the largest segment, at ¥660.6 billion

Other businesses contribute 47.4% of external revenue
The revenue split is not the profit split
Almost half of revenue comes from outside Security Services
External-customer revenue for the year ended March 2026; percentages are calculated by this site. This is not an operating-profit composition.
One of the largest non-security lines makes safety hardware that stands on its own as a specialist market.
Fire protection: ¥186.8 billion
Data centers and outsourced operations: ¥129.9 billion
Home medical care and healthcare services: ¥92.0 billion
Insurance is another ¥65.4 billion
Mapping the physical world: ¥60.6 billion
Other business lines add ¥61.3 billion
Online security and the later Social System Industry vision mark two stages in the portfolio’s development.
Security began in 1962; remote monitoring arrived in 1966
The 1989 declaration of a Social System Industry
Keeping security central while serving different kinds of safety
An editorial picture of the company's portfolio beyond original alarm contracts, not a literal genealogy of shared technology.
- SecurityMonitoring, emergency response and guards
- Fire preventionFire detection and suppression systems
- Healthcare and insuranceHome nursing, medical support and insurance
- Geospatial and BPO/ICTSurveying, data centers and outsourced operations
THE VIEW AFTER THE NUMBERS
What the numbers suggest
Security remains SECOM’s largest segment and the central profit contributor. Other businesses provide 47.4% of revenue. Fire-protection equipment, home healthcare, insurance, mapping services and data centers serve distinct customer problems, with their own business logic. Security anchors a group of businesses with different markets and customers.
Primary sources used
FY2026 consolidated results (original Japanese SECOM disclosure)
SECOM CO., LTD. · 2026-05-12
Pages used: p.1 / p.5 / p.21
Open source →SECOM FY2026 segment external-customer revenues (Japanese original)
SECOM CO., LTD.
Open source →SECOM group operating domains (Japanese original)
SECOM CO., LTD.
Open source →Official SECOM history 1962–1980
SECOM CO., LTD.
Open source →Official SECOM history of the Social System Industry
SECOM CO., LTD.
Open source →