About us

The Company

About ENACO

ENACO is one of Sweden’s leading companies in the construction, operation and maintenance of mission-critical infrastructure. Founded in 1977, we bring a level of experience that is unmatched in the industry. Over the decades we have lived through major technology shifts, recessions, booms, and ever-increasing demands for availability and security. In short – we know this business inside out.

Kontakta oss

Our History

ENACO was founded in 1977 by Bo-Gösta Rönnberg and Sebastian Wrethagen. The company name, however, was coined by Bo-Gösta’s wife. ENACO – a telescoped term from Environmental Air Conditioning – reflects one of the industry’s greatest challenges: removing excess heat from server rooms and entire data centers.
During the early decades, ENACO focused primarily on manufacturing efficient climate systems and ventilation units.

From Strength to Strength

With customers such as Ericsson, Atlas Copco, Handelsbanken and SAS, ENACO grew rapidly in both size and revenue throughout the 1980s. The expression “The ENACO Way” was established, and the company opened offices in Gothenburg, Malmö and Linköping. At that time, ENACO was one of few providers offering 24-hour on-call service, attracting a growing number of customers.

The IT Era Creates a Massive Market

During the IT boom of the 1990s, the need for servers increased dramatically. We supported companies with their own data centers and on-premise environments by building and operating their infrastructure. The market expanded by several hundred percent, and ENACO became one of Sweden’s largest suppliers of server rooms, ventilation systems, data centers and secure IT operations.

The Ups and Downs of the 2000s

Throughout the 2000s, ENACO continued to evolve alongside rapidly developing technology and shifting market demands. We expanded our expertise from fundamental feasibility studies all the way to complete network installations, both copper and fiber, for everything from commercial buildings to complex data centers. Our ability to adapt quickly made us a preferred partner for companies needing flexible and scalable solutions.

Colocation and Energy Efficiency

In the early 2010s, the market shifted as mid-sized server rooms became less common when more organisations chose to outsource their IT operations. Demand grew significantly, and ENACO became involved in numerous nationwide projects designing and building turnkey colocation data centers.
Our focus expanded beyond secure, high-availability data centers to include advanced energy-efficient design — critical for both operational costs and environmental impact. Capacity needs increased rapidly, with the number of kW per square meter multiplying tenfold in just a decade.

ENACO Today

As one of Sweden’s leading providers of mission-critical infrastructure, we stay continuously up to date with the latest technological advancements. We evaluate new technologies carefully, ensuring that we never adopt unproven trends without verifying their performance and reliability.
Our mission — today and in the future — is to deliver the most robust, secure and efficient solutions for uninterrupted operation of our customers’ critical infrastructure.