Employer:
Budopol Wrocław

Localization:
Stanowice k. Oławy.

Employer:
Wałbrzych Municipality

Localization:
Wałbrzych

Employer:
PBO Zielona Góra

Localization:
Gubinek - Zielona Góra

Employer:
PPW Compleks-Projekt

Localization:
Kozłowa Góra

Employer:
ZDIK Wrocław - Wrocław Board of Road and Public Transport

Localization:
Wrocław

Employer:
ELEKOL

Localization:
Opole Groszowice