Founded in 1942, Rejlers AB has grown into one of the leading engineering consultancies in the Nordic region. The company's operations are divided into geographic segments, with Rejlers Sweden generating the majority of its revenue, followed by Rejlers Finland and Rejlers Norway. Its service portfolio spans electrical engineering, mechanical engineering, automation, environmental technology, and telecommunications. Rejlers is particularly focused on facilitating the energy transition, modernizing industrial facilities, and upgrading critical infrastructure such as road, rail, and wastewater systems. The firm frequently secures framework agreements with major public and private entities, positioning itself as a key partner in complex, multi-stakeholder projects.