- Traffic and civil engineering office City of Leipzig
- Park and gardens dept. of Leipzig
- Dept. for urban redevelopment Leipzig
- City of Markkleeberg
- Municipal waterworks Leipzig KWL GmbH
- Public services Leipzig SLE GmbH sectors for district heating,nat.gas
- Spiekermann Consulting Engineers
- dam maintenance Rötha
- Building society Markkleeberg
- EUROPTEN Deutschland
- LSI GmbH
- BIO BGAG Berlin
- TLG real estate GmbH Leipzig
- engineering/civil engineering AG Sachsen
- BLK Bohrteam Görschen (drilling projects)