Citizen OS Foundation

Citizen OS Foundation

Tallinn, Estonia

Democracy & Civil society
NGOFounded 2015International reach
Profile last updated: May 5, 2026

About

Founded in 2015, Citizen OS Foundation is a non-governmental organisation based in Tallinn, Estonia working on democracy & civil society.

Citizen OS Foundation is a civic tech non-profit founded in 2015 in Tallinn, Estonia. It develops and operates a free, open-source, ad-free participation platform that lets groups and communities gather ideas, discuss, vote and make decisions collectively. The organisation also runs hands-on training programmes in participatory leadership for civil society leaders and activists, supports e-democracy and participation projects worldwide, and publishes articles and case studies on technology and democracy. Its platform is available in English, German, Estonian, Slovak and Russian, and its team works from a remote headquarters with an office in Jakarta, Indonesia. The foundation is funded through private philanthropic donations and EU and other grants, and it states that it does not sell user data.

Location

Tallinn, Estonia

Founded

2015

Organisation type

NGO

VAT number

EE887700771

Focus areas

civic teche-democracyparticipatory democracyopen sourceco-decision platform

Languages

ENDEETSKRU

Causes & programmes

Causes

Democracy & Civil society

Works for

CommunitiesStudents

How they work

Capacity buildingAwareness & educationCommunity programmes

Programmes

Democra-SI

Democracy & Civil society · Spain

Erasmus-funded project with 22 partners from 12 countries that explores and amplifies inclusive democratic narratives, including a seminar held in Barcelona in June 2025.

Democracy Defenders Network

Democracy & Civil society

Network of civil society activists from around the world, born from the Democracy Defenders Accelerator, a 10-month development programme for civil society leaders.

Funding & support

Funded by

Individual donationsGrantsEU funding

Ways to support

DonateVolunteer

Credentials & affiliations

Industry memberships

Network of Estonian Nonprofit Organizations

Partnerships

Lets Do It Foundation, People Powered

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