YTK is an unemployment fund for employees. It means that only employees can join and get unemployment security with us. Entrepreneurs cannot.
An entrepreneur can join an unemployment fund for entrepreneurs. There is one unemployment fund for entrepreneurs in Finland: Yrittäjäkassa (formerly SYT).
If you work both as an employee and entrepreneur, you can choose whether to get unemployment security as an employee with us or an entrepreneur with an unemployment fund for entrepreneurs. However, you cannot be a member of two unemployment funds at the same time.