Hannu Tarkkio

Sector Alarm Oy engages in the provision of security services. It offers guarding, patrol, receptionist, worksite safety services, event and mobile security, video surveillance, security alert systems, web services, and education and training on safety matters. The company was founded on April 29, 1987 and is headquartered in Vantaa, Finland.

Prevent 360 Turvallisuuspalvelut Oy provides security and alarm center services as well as security technology solutions. The company was founded on July 18, 1990 and is headquartered in Espoo, Finland.

Avarn Security Oy provides security services. Its services PSAP services, security technology, security services, service packages and cash handling. The company was founded in 1901 and is headquartered in Vantaa, Finland.