Facts and values

DEIF was established in 1933 by Erling Foss and his two partners in a backyard in the Danish capital Copenhagen. The acronym DEIF is derived from the company’s original name, Danish Electro Instrument Factory. The company assembled and mounted (by hand) basic electromagnetic measuring instruments. Focus was on precision and robustness.

Today, the DEIF Group is fully owned by the founder’s son Toke Foss and his three children. The products have become much more advanced, and the marketplace has been expanded to include the entire world. Yet, focus on quality, reliability and service remains the same.

Despite the expansion to sell and service solutions and products anywhere in the world, production and R&D remains located at DEIF’s Danish headquarter in Skive, Jutland.

Our solutions provide cost-effective technologies to meet the toughest customer demands and performance needs. We’re dedicated to delivering environmentally improved solutions and you’ll find that our product and solutions portfolio is unmatched in the industry. Add to that a global service and support network supported by numerous hands-on training locations around the world.

Annual report abstracts

Group overview, consolidated financial highlights and KPI's, report:


For almost a century, DEIF has developed and manufactured first-class electronics. Owned by the Foss family, DEIF has grown from being a small workshop to one of the world’s leading suppliers of green energy management systems.

Global partner

Having subsidiaries and distributors worldwide, DEIF is your local partner. No matter where in the world you operate, you can rely on us for troubleshooting, customisation, installation and commissioning.

Read more about us in our corporate brochure