High achievements in cooperation
Our many years of experience and effectiveness in project implementation are confirmed by satisfied customers and high results achieved in cooperation. Every year we build more and more trust thanks to reliability and innovative solutions.
- Our clients return to us with new assignments,
- We have already completed nearly 90 infrastructure projects.

See our references
DOHWA Engineering
“Construction of railway line no. 170 on the section Katowice – state border – Ostrava.”
PKP ENERGETYKA
“Modernization of the E30 railway line, stage II, section Zabrze-Katowice-Kraków, Tender No. 3 – Modernization of the section: Krzeszowice-Kraków Główny Towarowy (km 46,700 – 67,200 of line No. 133)”
PKP POLSKIE LINIE KOLEJOWE S.A.
“Development of design documentation for the reconstruction of the railway viaduct at km 8.862 of the railway line no. 140 Katowice Ligota-Nędza as part of…”
pni
“Design and execution of construction works entitled “Modernization of railway line no. 96 Tarnów-Leluchów on the Tarnów-Stróże section””
SKANSKA S.A
“Construction of the Babice bypass in a new route along the provincial road no. 780 from km 1+176 of the ref. section 180 (work km 0+000) to km 0+790 of the ref. section 160 (work km 4+74…”
Swietelsky
“Works on the railway line no. 94 on the section Kraków Płaszów – Skawina – Oświęcim”
TORPROJEKT
“Modernization of the E 30/C-E 30 railway line, section Kraków – Rzeszów, stage III”
PKP POLSKIE LINIE KOLEJOWE S.A.
“Preparation of pre-design documentation for the project “Works on railway line no. 94, on the Kraków Płaszów – Skawina – Oświęcim section” in the… “
PKP POLSKIE LINIE KOLEJOWE S.A.
“Preparation of pre-design documentation for the project “Works on railway lines no. 97, 98, 99, on the Skawina – Sucha Beskidzka – Chabów – Zakopane section” as part of the pro…”
KOLPROJEKT
“Development of construction designs, tender documentation and executive designs for a road viaduct over the tracks at km 161.391 of the Grelawo station.”