On November 17, 1998, the time had come: DPB GmbH was founded and has been headquartered in Frauental since the beginning of 1999.

By its inception in 1999, DPB already employed 60 people, deployed throughout almost all of Austria. Their specialties were, and still are, the construction of trenches for laying various pipelines, as well as trenchless pipe jacking and other alternative installation methods.

The shareholders then founded an independent company with extensive experience in the field of cable construction. The company's initial focus was on innovative drilling and new cable laying techniques that meet individual customer requirements.

One of the first projects involved laying underwater pipelines through Lake Neusiedl. The requirements were: installing two PE 2 pipes in a continuous trench with a 50 m cover over a length of 1,1 m through Lake Neusiedl. The soil consisted of compact to hard clay covered by a 3.300 cm thick layer of mud. Furthermore, the construction work had to fully meet the national park's stringent environmental requirements.

DPB proved to be the only company capable of taking on the challenges and developing the ideal concept. Due to our specialists' many years of experience, crossing the lake was only possible with a special excavator. For this reason, the machine was transported from the Baltic Sea to Burgenland. Natural conditions further complicated the construction work on site: mud thicknesses between 1,2 m and 2,5 m, ice formation, war relics, etc. All of these problems nearly led to the failure of the project.

Despite these difficulties, the fiber optic cable through Lake Neusiedl was completed in a very short time. After exactly six days of effective construction, the project, along with all documents and data logs, was handed over to the client.

DPB took over the implementation of the project "A data highway from Graz to Thörl Maglern" as general contractor. From route planning and obtaining permits from property owners and authorities, through planning, project management, and logistics, to the installation of 11 empty conduits – all in just 123 days. Within 42 days of the contract being awarded, the data highway was fully planned, thus completing the first phase. Further records were to follow during the construction phase: The fiber optic cable runs directly over the Koralpe and was, at the time, the highest data highway in Austria.

The DPB employees also performed at their best in terms of efficient logistics: a total of 1.300 cable drums, each with a diameter of 3,2 m, had to be transported to their exact installation location.

The contract was awarded on June 6, 2000. Just a few months later – on November 30, 2000 – the entire project was completed and the digital documentation was handed over to the client.

DPB GmbH began training security guards, or "SIPOs" for short, as early as 2010. This laid the foundation for the later founding of DPB Rail Infra Service GmbH.

On November 1.11.2013, DPB Rail Infra Service GmbH was founded as an independent company.

DPB Rail Infra Service GmbH is divided into the following areas:

• Control and Safety Technology
• Security Service
• Rail logistics and freight transport
• Training Center

Since June 12.06.2018, DPB Rail Infra Service GmbH has had the commercial authorization (transport license) to provide freight transport services as an independent railway undertaking, or “EVU” for short.

The safety certificate, which proves that all requirements for ensuring safe transport operations have been met, was issued for freight transport with effect from 13.08.2019 August.

Since August 14.08.2022, DPB Rail Infra Service GmbH has also had the commercial authorization (transport permit) for passenger transport.

The safety certificate was also issued for passenger transport with validity from August 14.08.2022.

The DPB Rail Infra Service GmbH DE GmbH and the DPB Rail Infra Service Hungary Kft. were founded.

In 2025, the DPB Rail Infra Service GmbH Hungary Kft. The safety certificate will be issued on April 1st. DPB Rail Infra Service Czech Republic sro received national operating approval on May 14, 2025, followed by the DPB Rail Infra Service Croatia doo on October 10, 2025, as well as the DPB Rail Infra Service Slovak Republic sro on November 14, 2025. On December 19, 2025, the DPB Rail Infra Service Croatia doo Additionally, the safety certificate was issued.
The DPB Rail Infra Service, železniški tovorni promet, doo was founded on April 28, 2025 and has been in the development and approval phase ever since.

The DPB GmbH 2025 marks a significant milestone in the further development of Krieglach location is DPB Rail Technical Service GmbH Achieved. With the completion and opening of the new Hall 3 at the end of May 2025, one of the most extensive construction projects was successfully completed.

The new hall covers approximately 2.900 m² of usable space and is equipped with state-of-the-art technology:

• four tracks of 80 m each
• a narrow work pit with track for the locomotive electrical test stand (23 m)
• two roof work platforms
• a 25-ton overhead crane
• an underfloor wheelset lathe from the company Hegenscheidt
• an electric locomotive test bench from the company Elin, which enables the following tests:
  • 3 kV DC
  • 1,5 kV DC
  • 1kV 16,7Hz AC
  • 15kV 16,7Hz AC
  • 25kV 50Hz AC

The DPB Rail Technical Service GmbH now has a state-of-the-art Hegenscheidt underfloor wheelset lathe For standard-gauge locomotives. This system allows for the precise reprofiling of wheelsets. Individual wheelsets can also be reprofiled, and brake discs (including internal ones) can be turned. A further advantage of this system is that wheelsets connected to cardan shafts can be turned without removing the cardan shafts.

At the Frauental site, the headquarters of DPB GmbH and DPB Rail Infra Service GmbH, a significant building construction project was successfully completed in 2025. The aim was to meet the significantly increased space requirements through a functional and modern extension.

The entire construction period – from the demolition of the old garage to the handover of the new premises including outdoor facilities – was only five months.

DPB Rail Infra Service GmbH now has a fleet of the following rail vehicles: