Civil works in
Schlieren

STRABAG AG

Since 1928 · 101–500 empl.·4.7(3)

STRABAG AG is a construction company carrying out projects in civil and structural engineering, civil works, specialist foundation engineering, transport infrastructure, building construction, timber construction and tunnelling. Its activities also include construction-material production.

Grünstein GmbH

Since 2021 · 1–10 empl.

Grünstein GmbH is a general and total contractor for building and civil engineering. It plans and delivers new-build and renovation projects, provides project and general planning, and offers in-house structural engineering.

Straga AG

Since 2024 · 11–20 empl.·5.0(2)

Straga AG carries out road construction and civil engineering works and develops outdoor areas. Its services include road building and renovation, excavation, utility lines, landscaping, road maintenance, grounds care and winter services.

GreenTech Solutions GmbH

Since 2025 · 1–10 empl.

The company aims to operate a business in the field of pipe and sewage systems, including the provision of services and works as well as the performance of maintenance, renovation, and cleaning work. Furthermore, it aims to carry out construction work of all kinds, structural drying of residential and industrial buildings, as well as activities in the field of refrigeration and air conditioning technology. The company may establish branches and subsidiaries both domestically and abroad, participate in other companies, and conduct all business that is directly or indirectly related to its purpose. It may acquire, encumber, dispose of, and manage real estate both domestically and abroad. In ad

Tiefwerk GmbH

Since 2025 · 1–10 empl.

Tiefwerk GmbH is a construction company carrying out building and civil engineering work. Its services include structural construction, excavation and earthworks, sewer investigations, demolition, building openings, roadworks and landscaping.

Ryvon Group GmbH

Since 2026 · 1–10 empl.