Rhomberg Sersa Rail Holding GmbH

Rhomberg Sersa Rail Group (RSRG) is an Austrian railway engineering and construction group that positions itself as a full railway engineering service provider. From its base in Bregenz, the group serves light rail, main-line railways, freight lines, private infrastructure operators, and owners of track-laying machines. Its service portfolio spans the entire life cycle of railway infrastructure, combining traditional track construction with electrical infrastructure, signalling, digital rail services, and specialised maintenance. The group's capabilities are organised around several pillars. Under infrastructure, it plans, supplies, installs, and commissions rail power supply substations, catenary systems for AC and DC railways, ground shield foundations, electrical infrastructure, electromechanical systems for tunnels, and control, safety and communication systems. Its services division covers consulting and technical advice, rail service and logistics, track survey and precision measurement, construction survey and reality capture, diagnostics, railway safety services, inspection and analysis, rail transport operations, and wheel/rail system service. A dedicated digital rail services unit applies building information modelling (BIM), automatic object detection (ARTEMIS), drone-based documentation, geodata services, and 4D construction planning to railway projects. RSRG has a long heritage in mechanised track construction in Austria, tracing part of its history to the founding of Bahnbau Wels in 1950. The group continues to invest in its sites and technologies, as shown by the 2026 groundbreaking for an expansion of its Wels facility. It maintains a customer magazine, 'keep track', and participates in major industry events such as InnoTrans in Berlin. The company operates as a private holding entity, Rhomberg Sersa Rail Holding GmbH, and is active across Austria, Germany, Switzerland, and other European markets.

The history of Rhomberg Sersa Rail Group is closely tied to the development of mechanised track construction in Austria. According to the group's own account, the success story of mechanised track construction in Austria began on 16 April 1950 with the founding of the former Bahnbau Wels. That enterprise laid the groundwork for what would eventually become part of the Rhomberg Sersa Rail Group, which today describes itself as a full railway engineering service provider. Over the decades, the group expanded its capabilities beyond track construction into a broad range of railway infrastructure and service disciplines. It developed expertise in rail power supply, catenary systems, electrical infrastructure, signalling, and electromechanical systems for tunnels. It also built up a services portfolio covering consulting, logistics, track survey, diagnostics, safety services, and rail transport operations. More recently, the group has invested in digitalisation, implementing building information modelling (BIM) and developing proprietary digital tools such as ARTEMIS for automatic object detection and the Drone Box for automated construction progress documentation. The group operates under the holding entity Rhomberg Sersa Rail Holding GmbH and maintains a presence in multiple European markets, with a focus on Austria, Germany, and Switzerland. It continues to invest in its facilities, as demonstrated by the March 2026 groundbreaking for the expansion of its Wels site. The company also engages with the industry through events like InnoTrans in Berlin and publishes a customer magazine, 'keep track'. Its 75th anniversary of mechanised track construction in Austria was marked in 2025, highlighting its long-standing role in the sector.

• Founding of the former Bahnbau Wels, marking the beginning of mechanised track construction in Austria.

• 75th anniversary of mechanised track construction in Austria celebrated.

• Ceremonial groundbreaking for the expansion of the Wels site.

• Participation in InnoTrans 2026 in Berlin under the motto 'All 4 One - All 4 You'.

Full railway engineering service provider offering customer-oriented, tailor-made solutions across the entire railway infrastructure life cycle.

• NaKorid

  Repair and refurbishment of insulated rail joints, a sustainable alternative to coupon replacement.

• Ground Shield Foundation (GSF)

  Vibration system enabling foundations for overhead line, signaling, lighting and noise barrier systems to be installed quickly, safely and with efficient use of resources.

• ARTEMIS

  Automatic object detection for digital rail services.

• Drone Box

  Efficient and straightforward construction progress documentation through automated drone flights.

• BIM as-built model

  Optimal basis for precise planning and design in BIM.

1. 1Rhomberg Sersa Rail Group | Globalrhomberg-sersa.com
2. 2Services - Rhomberg Sersa Rail Group | Globalrhomberg-sersa.com
3. 3Infrastructure - Rhomberg Sersa Rail Group | Globalrhomberg-sersa.com
4. 4Digital Rail Services - Rhomberg Sersa Rail Group | Globalrhomberg-sersa.com
5. 5Wikidata: Rhomberg Sersa Rail Holding GmbHwikidata.org