A letter of reference received by Contech s.c. from the "Wspólnota Gdańska" Foundation in connection with the completion of a comprehensive modification of a tenement building in Gdańsk Oliwa in 2016-2017.
A letter of reference received by Contech s.c. from Przedsiębiorstwo Robót Inżynieryjnych "Pol-Aqua" S.A. with its seat in Piaseczno, in connection with the completion of work during the construction of the "Galeria Biała" Commerce, Recreation and Services Centre in Białystok in 2007-2008.