Ernst Otto NielsenWICOTEC KIRKEBJERG A/S, WWK HOLDING A/S, NELTEC DENMARK A/S, NELTEC DENMARK A/S, ERNST NIELSEN A/S, ERNST NIELSEN A/S, ERNST NIELSEN INVEST A/S, ERNST NIELSEN INVEST A/S, AL-WICOTEC INGENIØR, RØR-, VVS- & EL-ENTREPRENØR A/S, ERTONI INVEST A/S and 2 more