Sapa group (Sweden)

Aluprof S. A. (Poland)

Ponzio S.r.l. (Italy)

Siegenia-Aubi (Germany)

VBH-TMB, Uab (Lithuania)

ASSA ABLOY Baltic AS (Lithuanian branch)

GEZE GmbH (Germany)

DORMA GmbH (Germany)

FUHR GmbH & Co (Germany)

Pilkington – IGP Sp. z o.o (Poland branch)

Saint-Gobain S.A. (France)