What about creative companies and cultural organisation from Switzerland, UK or Serbia for example?

Answer: 

Organisations from other countries are eligible for participation in the Call for Proposals, in accordance with the Horizon Europe Regulation. Entities from these countries will be eligible for funding if these countries will become associated to the Horizon Europe framework programme.

In line with Article 9(4) of the EIT Regulation, at least two thirds of the partner organisations forming a KIC shall be established in the EU Member States.