TT-Teknologia Oy continues to grow under new ownership


TT-Teknologia Oy, a company specializing in industrial subcontracting, has completed a corporate restructuring with Kotera Group Oy. The company’s founder and CEO, Teemu Toppari, continues as the company’s leader and owner through Kotera Group’s share ownership. The agreement between the parties was signed on January 31, 2024.

TT-Teknologia Oy is known for its strong expertise in building pipelines, pumping stations, conveyors, and steel structures required by industries such as mining, metallurgy, and paper manufacturing. The company also offers maintenance services to its clients. The sale is part of Kotera Group’s strategy to strengthen its position in industrial construction services.

‘The sale of TT-Teknologia Oy to Kotera Group is a strategic decision that allows both companies to leverage their strengths and accelerate growth. Joining a larger consortium provides financial and administrative support for the company’s development. In addition, we can offer a wider range of services to our clients together with other companies within Kotera Group,’ says the company’s CEO, Teemu Toppari.

‘As a company’s founder, Teemu has built TT-Teknologia Oy into a leading company in its field. We are pleased to welcome TT-Teknologia Oy to Kotera Group. The acquisition is a significant step in Kotera Group’s strategy to expand our industrial construction services in Finland and Sweden,’ states Tuomas Forsberg, CEO of Kotera Group Oy.

More information:

Teemu Toppari, CEO, TT-Teknologia Oy

+358 40 771 3265,

Tuomas Forsberg, CEO, Kotera Group Oy

+358 45 631 8597,

Kotera Group Oy

Kotera Group is a diverse Finnish construction company established at the end of 2023, specializing in industrial construction, industrial services, HVAC technical contracting and maintenance, and repair and damage restoration. The consortium employs about 250 construction professionals across four subsidiaries throughout Finland. The company’s pro forma revenue in 2023 was approximately 75 million euros, and the pro forma operating margin was about 6.5 million euros. Website:

TT-Teknologia Oy

TT-Teknologia Oy, founded by Teemu Toppari in 2009, serves customers in industries such as mining, metallurgy, and paper manufacturing. The company’s expertise includes pipelines, pumping stations, conveyors, screens, and steel structures. TT-Teknologia Oy offers maintenance services to its clients. The company is based in Keminmaa, but it provides services across Finland. The company employs about 40 people and a large number of subcontractors and partners. Website: