From 1978 to 1993, he served as Director General of PHZ Kolmex S.A. - a railway sector company; during that time he executed one of their largest contracts ever to supply freight wagons for Iraqi Railways. Having left PHZ Kolmex S.A., in 1992  Gudzowaty set up the Bartimpex commodity trading operation, and in so doing leveraged his Russian relationships.
Between 1978 and 1993, he held the position of Director General at PHZ Kolmex S.A., a railway company; during this tenure, he executed one of their largest contracts to supply freight wagons for Iraqi Railways. Following his departure from PHZ Kolmex S.A., in 1992 Gudzowaty initiated Bartimpex, leveraging his Russian relationships.