Prosero acquires Ajan Lukko in Finland


Prosero continues the expansion in Finland and strengthen the position in the Pirkanmaa region through the latest acquisition of Ajan Lukko Oy. The company is an integrated full-service provider of security solutions, headquartered in Tampere.

Ajan Lukko is a well-established family business founded in 1970 and run by the second-generation entrepreneurs Ari Karjalainen, Esa Karjalainen, and Mia Toivonen who have been successfully running the company since they took over the business in 1987. The company was founded as traditional locksmith, but has over time transitioned into a full-service provider with a one-stop-shop offering including products and services within locking solutions, door phones, access control, door automation, fire alarms, intruder alarms, and CCTV.

The company has demonstrated a solid track-record of profitable growth, and over the years they have established a leading market position with a strong brand and reputation. Sales is primarily driven by a focus on aftermarket and service with recurring business from a broad customer base with longstanding relationships within the public sector, housing associations, real estate companies, and construction companies. With a strong pipeline and a few recent key recruitments, the momentum is strong, and the company is ready to meet a growing demand in the market. During the last fiscal year, the company delivered sales of ~4.5 million euros with 26 employees, operating from the company headquarters in Tampere.

“Prosero is a widely recognized and rapidly developing security solution player on the Finnish market as well as on the broader Nordic scale. Joining forces with Prosero strengthens our ability to serve our customers and creates avenues for professional development. In Finland, the Prosero group of companies are well-known local champions. This was an essential factor for us in the decision to join forces. We want to continue at the forefront of industry development and will continue to serve our customers in the Pirkanmaa area with enthusiasm and dedication. We are excited and very much looking forward to our journey together.” says Ari Karjalainen from Ajan Lukko.

”Ajan Lukko is a very well-run company with an impressive track-record and strong market position in the Pirkanmaa region, where Prosero is also present. We see strong growth potential where Ajan Lukko complements our existing presence well, and together we cement our position as the leading player in the market”, says Sebastian Ryman at Prosero.

Read more about Ajan Lukko here!

For more information, please contact

Sebastian Ryman
M&A, Prosero Security Group AB

Ari Karjalainen
VD, Ajan Lukko Oy

Prosero is the leading Nordic supplier of technical security solutions, with years of experience and a strong local presence in over 100 locations in Sweden, Norway, Denmark, and Finland

Prosero is made up of local leaders in security – a network that unites the local presence and flexibility of smaller companies with a larger company’s stability and digital expertise. Prosero delivers competence and provides cutting-edge security technology that is adapted to each customer’s needs and applications. Its service offering includes consulting, integration, operations, maintenance, service, and monitoring of alarms, access control, camera systems, locks, and fire safety. Its total turnover amounts to more than SEK 2,600 million.

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