Company overview Bild Tenders Bild Career Bild Commitment Bild Environmental education Bild Service Bild Car wash Bild Vehicle fleet Bild Broadband expansion Bild Contacts / Locations Bild KSJ Bild Local law News Bild 18.06.2025 Summer Imaginata 2025 - KSJ on board This year, Imaginata e. V. is celebrating its 30th anniversary - reason enough for a special week of activities right in the heart of Jena. read more Bild 17.06.2025 KSJ exchange house open for a shorter period The exchange house in Löbstedter Straße will be open on Friday, June 20, 2025 from 9 a.m. to 2 p.m. read more Bild 11.06.2025 Crown cork collection: Important information From now on: Only crown caps from drinks bottles should be put in the collection garbage cans (treasure chest at recycling centers). read more Bild 10.06.2025 Repair Café Jena as guest On Saturday, June 7, the Jena Repair Café was a guest at the Umwelthaus at the northern recycling center. read more Bild 06.06.2025 Broadband expansion - your questions, our answers Do you have any questions? We have compiled a detailed FAQ catalog. read more Bild 30.05.2025 Repair Café as a guest On Saturday, June 7, 2025, the Repair Café Jena will be back at the environmental building of the recycling center at Löbstedter Straße 56. read more Bild 20.05.2025 Tauschhaus 2.0 can be reached directly by telephone We are now available to answer your questions and concerns about the exchange house on (03641) 4989-540. read more Bild 23.04.2025 Diversity Day in Winzerla This year's Diversity Day will take place in Winzerla on May 27, 2025. read more Bild 20.03.2025 A strong signal for environmental protection KSJ and SDW honor environmental commitment of ZEISS AG and FC Carl Zeiss Jena on Earth Day read more Bild 12.03.2025 Collect crown caps - support nature conservation! Together for a sustainable future! Thanks to your help, we have already collected 1 ton of crown caps in 2025. read more