D&J is a Total Solution Provider:
- Construction Planning
- Design Service
- Procurement
- Construction Works
- GS Caltex Czech P.P. Factory (Skanska)
- KOREA FUEL-TECH Factory Żory
- Lucky Union Food Factory (GS E&C)
- Nifco Korea Poland Factory Żory
- LG Display Roof Quality Construction
- Korea Fuel-Tech Slovakia Factory in Rajec, Slovakia
- Derkwoo Electronics Poland Factory in Biskupice Podgórne
- Sekonix Poland Factory in Żory
- Korea Fuel-Tech Poland New Warehouse in Żory
- Erae Poland Factory in Zabrze
- Dongsung Poland Factory in Żarów
- Laboratory for Erae Poland factory in Zabrze
- Dogshin Motech Poland Factory in Biskupice Podgórne
- Enchem Poland Factory in Biskupice Podgórne
- INFAC Poland Factory in Bielsko-Biała
- CityPark Complex Building in Kielce
- LG Display E1 & JV Projects (GS E&C, Songhwa ENC) in Biskupice Podgórne
- LG Innotek Poland Project (GS E&C) in Biskupice Podgórne
- M-Project for Poland, Phase 1 for SK Hi-Tech Battery Materials Poland (SK E&C) in Biskupice Podgórne
- LGESWA P4 Project for LG Energy Solution Wrocław (GS E&C) in Biskupice Podgórne
- Europe Project, Phase 2 for SK Hi-Tech Battery Materials Poland (SKEE) in Biskupice Podgórne
- Europe Project, Phase 3&4 for SK Hi-Tech Battery Materials Poland (SKEE) in Biskupice Podgórne
- LG Electronics Wrocław
- LG Display Poland
- Dongseo Display Poland
- Estra Automotive Systems Poland (formerly Erae Poland)