Certego is a security solutions installation business in the Nordic region, providing planning, installation, and maintenance of mechanical, electro-mechanical and electronic security solutions for customers in both the public and corporate sector. The business offers, among other things, smart locks and access systems, camera surveillance and CCTV, fire alarms and fire safety solutions, access control systems, complete packaged security solutions and a range of consulting services.

The company has a long history, originating in industrial locksmith operations started as early as the 19th century. Through a number of acquisitions in the Nordic region along with organic growth, the business has expanded into a network with more than 70 branches and approximately 1,200 employees in Sweden, Finland, Norway and Denmark. Until 2021, the company was part of Assa Abloy, when Nalka Invest acquired the business.