Reference

The 15th Riigikogu, following the elections held in 2023, has been composed of representatives from several political parties. According to the information available, there are 6 political parties represented in the 15th Riigikogu.

Here are the parties represented:

1. Reform Party (Reformierakond, RE)
2. Centre Party (Keskerakond, KE)
3. Conservative People's Party (EKRE)
4. Social Democratic Party (Sotsiaaldemokraatlik Erakond, SDE)
5. Isamaa
6. Estonia 200 (Eesti 200)

For a detailed list and more information, you can refer to the Wikipedia page on the 15th Riigikogu members.