Location: Nalunaq – Greenland
Start of construction: April 2024
Status: Completed April 2026
Type: Mining – Tunnel development
Length: Expansion of the tunnel network
Client: Thyssen Schachtbau

Location: Ebensee – Austria
Start of construction: April 2024
Status: Under construction
Type: Pumped-storage power plant – Excavation works
Client: PORR Bau GmbH

Location: Val Varuna – Switzerland
Start of construction: October 2023
Status: Completed April 2025
Type: Railway tunnel – excavation works, inner lining using sprayed concrete
Length: 147 meters
Client: Heitkamp Construction Swiss

Location: Innsbruck, Austria
Start of construction: July 2023
Status: Completed September 2023
Type: Drinking water tunnel – expansion and refurbishment
Length: 980 meters
Client: Arge Mühlauer Quelle

Location: Vienna, Austria
Construction start: March 2023
Status: Completed February 2024
Type: Subway construction (Lines U2 and U5)
Length: 600 meters
Client: Arge U2 x U5

Location: Glarus – Switzerland
Start of construction: February 2023
Status: Completion October 2024
Type: Escape and rescue tunnel – concrete works
Length: 5,765 meters
Client: Arge KER 450

Location: Vandans – Austria
Start of construction: December 2022
Status: Completed August 2023
Type: Refurbishment of underwater basin
Length: –
Client: PORR Bau GmbH

Location: Bad Ischl – Austria
Start of construction: November 2022
Status: Completed May 2023
Type: Underground facility – excavation
Length: 236 meters
Client: G. Hinteregger & Söhne Baugesellschaft mbH

Location: Spiegelwald – Austria
Start of construction: September 2022
Status: Completed October 2022
Type: Tunnel construction for pressure pipeline
Length: 550 meters
Client: G. Hinteregger & Söhne Baugesellschaft mbH

Location: Innsbruck – Sill Gorge – Austria
Start of construction: April 2022
Status: Under construction
Type: Railway tunnel – New construction (excavation and concrete works)
Length: Approx. 14,300 meters
Client: Arge H41 Sillschlucht – Pfons