Assemblin Ventilation is expanding with an acquisition in northern Sweden

Assemblin Ventilation has acquired Ventilationsfirma IM AB (“IM”), which has operations in Boden. IM generates annual sales of about SEK 25 million and has 11 employees.

IM was established as early as in 1959 and offers projects and service in ventilation technology from its offices in Boden. Customers include municipal companies, other public actors and private property companies.

“The market in northern Sweden is currently very strong, and we are therefore pleased to be able to expand our capacity with this acquisition. We have come to know IM as a well-managed company with a superior level of expertise and a great customer base, and it is with great pleasure that I welcome them to Assemblin,” says Håkan Ekvall, EVP and CEO at Assemblin Ventilation (Sweden).

“We have had good discussions with Assemblin and feel that we hold the same views regarding quality and customer focus. In Assemblin, we gain a strong owner who can contribute to our development, which is good for both our employees and customers,” says Christoffer Stråmo who, alongside Andreas Trast and Elina Eriksson, has run the company since 2017.

For further information, contact:
Håkan Ekvall, EVP and CEO Assemblin Ventilation (Sweden),, +46 10 452 72 63

Christoffer Stråmo, President at IM,, +46 70 590 13 38
Åsvor Brynnel, EVP Sustainability, HR and Communications, Assemblin Caverion Group,, +46 10 475 39 48

About Assemblin

Assemblin is an end-to-end installation and service partner with operations in Sweden, Norway and Finland. We design, install and maintain technical systems and solutions for air, water and energy. Our vision is to create smart and sustainable installations that make buildings work and people feel comfortable. We make this possible through close local collaboration and are supported by a strong organisation. We have annual sales of SEK 14.7 billion and about 7,000 dedicated employees at more than 100 locations in the Nordic region. Read more at

About Assemblin Caverion Group (from 1 April, 2024)
Assemblin Caverion Group is a leading northern European technical service and installation company. The Group employs some 21,500 skilled professionals in nine countries, sharing the passion for smart and sustainable solutions. We deliver installations, technical services and solutions along the full lifecycle of the built environment to support our customers and their increasing demand for energy efficiency, sustainability, and automation for buildings, infrastructure and industrial sites. Assemblin Caverion Group was formed in April 2024 through the combination of Assemblin Group and Caverion Corporation. Our combined revenue amounts to approx. SEK 43 billion/EUR 3.8 billion​. Read more at