The Sønderborg area

Sønderborg is the main town in the region with around 27,000 inhabitants. The town developed around Søndre Castle, which name was later changed to Sønderborg Castle. 

The town has a charming harbour front with cafés and restaurants and an intimate centre with loads of exciting shops. Sønderborg Castle and the impressive Alsion with its university, research park, concert hall and café are beautiful landmarks and underline the town’s historical significance. They also bear witness to Sønderborg’s rapid development and great ambitions.

Cultural life flourishes all year round in the Sønderborg area, and there are many opportunities to be cultural - whether you like concerts on one of our many stages, beautiful buildings and castles, shopping opportunities and crafts or maybe a guided tour.

From May to September there is a wealth of exciting music festivals and outdoor concerts. During winter time there is also a large selection of cultural activities, including Christmas concerts, New Year’s concerts and Electronic Music Festival.

Find more information about Sønderborg at, and

See more on


OJ Electronics
Contact OJ Electronics

Dialogue and close cooperation is the shortest way to a perfect solution.

Our Brand

Know How Creates
Know How Creates

Know How Creates is our promise to you: we use our insight and expertise to find the right solution.


& Events
News from OJ Electronics

Stay updated on general news about OJ Electronics here.



Project Zero is the vision of making the entire Sønderborg area CO2 neutral by 2029.