The basic organization has been active in OSJ since its inception. Our ZO has about 190 active members and 35 pensioners. The works committee has 10 members and regularly discusses with employers labour law issues, occupational health and safety, the use of SF and FKSP, etc. in accordance with the Labour Code and collective agreements.

The purpose of the association is to support the development of the J. A. Komensky Kly Primary School.

We are a group of active women and mothers who organize cultural events for children and adults. Our main activity is organizing children's clothing exchanges and dance parties. We donate all proceeds to children to improve their leisure time. We are happy to welcome new members to our team.

Operation of the association of volunteer firefighters. Organisation of public events and competitions.

Providing counseling services, educating children and professionals, organizing lectures and exhibitions.

Interest association of protector manufacturers.

We operate domestic and foreign hiking, cycling, skiing, alpine and water tourism.

A political, non-partisan and independent organization bringing together participants in the national resistance for liberation in World War II. We also bring together family members and survivors from the 15th year onwards. Other citizens, regardless of their political affiliation and religion, can also become members.

Community, socio-cultural facility in the residential part of the town of Mělník supporting active leisure time of families with children and seniors.

We are an energy community that helps communities, households and businesses use energy smarter, reduce costs and engage in electricity sharing.