Civil Engineering in
Biel/Bienne

Bau4U AG

Since 2009 · 21–50 empl.·4.0(24)

Bau4U AG is a construction company providing pipeline construction, civil and roadworks, and trenchless pipe installation (pipe jacking and horizontal drilling). Its services cover gas, water and wastewater pipelines, trenchless sewer rehabilitation using liner methods, and site development and surface works including asphalt repairs. The company also offers leak testing, manhole rehabilitation and other localized repair techniques.

SIGMA BAU BIEL AG

Since 2003 · 1–10 empl.·4.4(9)

The core activity of Sigma Bau Biel AG encompasses the provision of services in the construction sector, particularly in the following segments: building construction and renovation, civil engineering, industrial construction, core drilling, sealing and injection, as well as construction management and consulting. The company thus offers a comprehensive range of construction-related services, from planning and execution of construction projects to maintenance and renovation of existing buildings.

Freiebau AG

Since 1975 · 1–10 empl.

The company's core activity is the provision of search services and online content.

Bau4U Holding AG

Since 2025 · 1–10 empl.

Bau4U Holding AG is a construction company active in pipeline construction, civil and road works, directional jacking and sewer rehabilitation. The company carries out excavation work, utility line installation, road construction and renovation work, as well as trenchless rehabilitation services.

Adolf Künzi AG

Since 1956 · 1–10 empl.

Brogini AG, Filiale Biel

Since 1997 · 1–10 empl.

Hirt AG

Since 2012 · 1–10 empl.

Müller Aarberg AG, Zweigniederlassung Biel/Bienne

Since 2021 · 1–10 empl.

ROHRKON Kojic + Co. Rohrleitungsbau KLG

Since 2024 · 1–10 empl.