- Umbrella NGOs:
- Council of Latvia’s NGOs (critical of the government)
- Latvian Association of Ethnic Culture Societies (government-funded)
- Russian/Old Believer minority:
- Culture Development Foundation (organisers of the annual Russian Culture Days)
- Russian Society in Latvia (Orthodox)
- Arkona (education; inactive)
- Russian Culture Centre (Daugavpils city municipality)
- Association of Russian Language and Literature Teachers
- Sororitas Tatiana (corporation)
- Fraternitas Arctica (corporation)
- Russian Cultural Society of Latvia
- Russian Community of Rezekne
- Zavoloko Old Believers Association
- Old Believers of Daugavpils
- Latgalian:
- Belarusian:
- Union of Latvia’s Belarusians
- Belarusian Culture Centre (Daugavpils city municipality)
- Ukrainian:
- Polish:
- Polish Culture Centre (Daugavpils city municipality)
- “A Pole in Latvia” (a project by the state of Poland)
- Polish Union of Latvia
- Romani:
- Jewish:
- German:
- Liv:
- Others: