If you and your family members plan to stay in Denmark for more than 3 months, you can apply for an EU residence document at the Danish Agency for International Recruitment and Integration (SIRI), located in the same office as ICS Sønderborg.
You first need to complete an application. Once you have completed the application, you can book an appointment at SIRI. Remember that each applicant - including your children, if any - must appear in person. You will get an email with a booking confirmation and a booking number. Please bring the booking number when you visit ICS Sønderborg.
Find the relevant application pages for all types of grounds for EU residence on newtodenmark.dk.
An application page on newtodenmark.dk contains all the necessary information on how to apply for an EU residence document. Here you will also find the relevant application form, in addition to a step-by-step guide to successfully submit the application.