Gas1 tiimi
The core team of Gas1 consists of seasoned professionals with decades of experience in energy and biogas technology
"We are pioneers in bioenergy expertise, combining innovations in biotechnology, energy technology, and business. Our goal is to transform bioenergy production through sustainability and innovation, minimize environmental impact, and bring our innovations to broader awareness. We create impact through efficient project management, passion, strong expertise, and responsibility.”


Mika Kallio
Founder of One1 Oy and currently the CEO of Gas1 Oy. Mika has extensive experience in financial management, ranging from listed companies to growth-stage firms. He also has strong expertise and understanding of the evolution of the renewable energy market in the 21st century. Mika is responsible for the company’s contract negotiations, financial management, and people leadership.
DI, MBA,CEO
+358 44 323 7707

Mikko Bergman
Mikko Bergman
Senior Advisor


Janne Ekholm
Janne Ekholm serves as the company’s Chief Development Officer. His responsibilities include business development and the creation of new development projects. Janne has previously worked in a similar role in the development of several of our reference projects. He has a highly versatile network within the gas industry. In addition, Janne holds primary responsibility for development projects conducted in cooperation with universities and higher education institutions.
Head of Development
+358 400 80 6115
All emails are: firstname.surname@gas1.fi

​Lauri Malinen
+ 358 50 374 4544
Technical design, permit drawings, operational supervision

Aatu Väänänen
+358 44 529 0694
Grant applications, permitting processes

Ari Haapanen
+358 400 539 322
New projects, project development

Jarkko Tenhunen
+ 358 44 575 8990
Project management, profitability calculations

Heikki Lohilahti
+358 050 407 8683
Commissioning and operation of plants

Maarit Patana
+358 40 5758673
YVA-asiantuntija
