Gerhard Kahr

DYWIDAG-Systems International GmbH engages in the development and manufacture of products and systems for the construction industry. Its product portfolio includes strand and bar post tensioning, stay cable, and anchor and pile systems; lifting and fixing tools; as well as chemicals for concrete structures. The firm also provides services such as repair and strengthening of bridge structures, stay cable repair, reinforcement of foundations, and inspection of civil engineering structures. The company was founded in 1979 and is headquartered in Munich, Germany.

DSI International Luxembourg SARL engages in the provision of construction and mining services. The company is headquartered in Luxembourg.

Part of FSN Capital Partners AS, Fibo Group AS is a Norwegian company that manufactures and delivers wall panels and other laminated products. The company is based in Oslo, Norway. The CEO of the company is Anders Åke Carlson.

DYWIDAG-Systems International Pty Ltd. manufactures and supplies strata reinforcement products. It provides customers with engineered and systems for post-tensioning, geotechnical applications, global services and concrete accessories. The company was founded in 2002 and is headquartered in Bennetts Green, Australia.

Rettig Group Oy AB manufactures hydronic and electrical heating products. It involves in the research and development, design, procurement and production, logistics, and sale and marketing of radiators, towel warmers, underfloor heating products, convectors, valves and controls. The company was founded in 1770 and is headquartered in Helsinki, Finland.

Founded in 1968, DYWIDAG-Systems International Ltd. is a subsidiary of Walter Bau AG. The company is based in Southam, UK. The British company manufactures and distributes ground anchors, soil nails, mini piles, and rock bolts.

Alpin Technik und Ingenieurservice GmbH provides building construction services. The company was founded by Eric Kuhn and is headquartered in Leipzig, Germany.

iMPREG GmbH provides pipe liner systems for trenchless sewer rehabilitation. The firm’s products include impregliner, GL16-the new liner generation, impregliner GL13, impregliner GL01, product variants, slip sheet and supporting cap. The company was founded in 1999 and is headquartered in Ammerbuch, Germany.

OptiGroup AB engages in the business-to-business distribution of business essentials. The firm provides solutions for the facility management, safety and foodservice sectors, the industrial packaging sector, the printing and creative sector, and the retail and reseller sectors. Its products include gloves and safety shoes, workwear, catering and food service items, commercial cleaning chemicals, disposable cups, cutlery, plates, packaging equipment, and custom and standard corrugated boxes, The company was founded in 1895 and is headquartered in Mölndal, Sweden.

Part of R. Infrastructure Holding AB, ViaCon Group AB is a construction company based in Hovås, Sweden. ViaCon Group offers a range of solutions for bridges and culverts, geotechnical, and stormwater. With over 35 years of experience, the Swedish company provides specialized, world-class solutions that are reliable, long-lasting, and designed to meet the challenges of a changing world. ViaCon's solutions support both their customers and society in reaching vital sustainable goals. The company combines comprehensive local markets know-how with the strengths of the group to make ViaCon the partner of choice. The CEO of the company is Stefan Gerhard Nordström.

ViaCon AB markets and trades road and construction products. It also offers geotextiles and geomembranes. The company was founded in 1986 and is headquartered in Lidkoping, Sweden.

Fibo Holding AS is a holding Norwegian company that operates subsidiaries which manufacture veneer sheets and wood furniture. The private company is based in Oslo, Norway.

Saferoad AS provides road safety solutions. Its products include road restraint systems, traffic signs, works zone protection, road marking, lighting columns, pipes, culverts, and geosynthetics. The company was founded in 1947 and is headquartered in Oslo, Norway.

Part of IDEX Corp., Velcora Holding AB is a company that provides construction services. The company is based in Tumba, Sweden. Velcora Holding was acquired by IDEX Corp. on July 18, 2019 for $87.30 million.

Palmarosia AB provides corporate consulting services. The private company is based in Västerås, Sweden.

Alimak Hek Group AB provides vertical access solutions to customers in the construction industry as well as other industries. Its products includes construction hoists, industrial elevators, transport platforms, material hoists, and work platforms. The company was founded in 2001 is headquartered in Stockholm, Sweden.

Patrik Nolåker Consulting AB is a management consulting firm based in Västerås, Sweden. The Swedish company provides management consulting services.

ABB Oy develops and markets digitally connected and enabled industrial equipment and systems. It serves companies in the industrial, energy, transport, and infrastructure sectors. The company was founded on September 6, 1989 and is headquartered in Helsinki, Finland.

DSI Construction Holdings UK Ltd. is an investment holding private company founded in 2016. The company is based in Southam, UK. The British company's main function is to hold investments.