Companies
The members of the Heinrich Rönner Group
The Heinrich Rönner Group brings together large shipyard locations and specialized craft businesses under one roof. Despite their varying sizes and areas of focus, the companies are united by a common goal: through close collaboration, mutual support, and streamlined decision-making processes, everyone works together toward a common goal.
This strong community forms the foundation for the group’s successful development, which has seen significant growth in recent years.
Arthur Friedrichs Industriebedarf GmbH
Technical Supplies, Fire Safety, PPE, Workwear, and Industrial and Hydraulic Services
Arthur Friedrichs Industriebedarf GmbH has been supporting companies with high-quality products and customized procurement and supply solutions since 1921. The company combines many years of experience in technical industrial supplies with efficient processes and a service-oriented approach.
As a supplier of technical industrial equipment, Arthur Friedrichs maintains close ties to the regional economy. A modern, innovative procurement system enables fast and seamless order processing. The broad product range, high delivery capacity, and efficient warehouse logistics ensure quick response times and a reliable supply to customers.
BVT Bremen GmbH & Co. KG
Shipbuilding and Steel Construction
BVT Bremen GmbH & Co. KG carries on the tradition of shipbuilding in Bremen-Vegesack at the former site of the Bremer Vulkan shipyard.
The company manufactures ship sections and builds new vessels. In addition, BVT Bremen specializes in the production of steel components for the offshore industry, for applications in both the oil and gas sector and offshore wind. In recent years, the company has also expanded its range of services to include industrial plant construction.
BVT Chartering und Logistics GmbH
Heavy-Lift Operations and Transportation
BVT Chartering und Logistics GmbH is a transportation company within the Heinrich Rönner Group that specializes in the shipment of heavy loads and was founded in 2013.
The heavy-lift fleet includes floating cranes, multipurpose vessels, heavy-lift pontoons, heavy-lift transfer systems, and mobile cranes. This enables the company to offer versatile solutions for demanding projects. Heavy-lift operations and heavy-lift transport on land and at sea are primarily planned and professionally executed in the Weser-Elbe region as well as in the North Sea and the Baltic Sea.
Bredo Dry Docks GmbH
Ship Conversion, Repair, and Maintenance
BREDO DRY DOCKS GmbH is one of Europe’s leading shipyards for ship conversion, repair, and maintenance. Its location at the mouth of the Weser River where it flows into the North Sea ensures easy access from all European ports.
The docks form the heart of the compact and continuously modernized shipyard complex. Short distances within the facility ensure efficient operations and support swift and cost-effective project execution.
EnPro Engineering- und Produktionsgesellschaft mbH
Custom Components, Plants, and Systems
EnPro Engineering- und Produktionsgesellschaft mbH plans, designs, and manufactures custom components, plants, and systems for ship and yacht building, as well as for mechanical and plant engineering. The company was founded in 1998 and has many years of experience in implementing complex technical projects.
The team of engineers and technicians possesses comprehensive specialized knowledge in the fields of mechanical engineering, industrial engineering, electrical engineering, manufacturing engineering, and naval architecture. The close integration of engineering and production forms the foundation for the development and delivery of turnkey plants and systems from a single source.
FSG Shipyard GmbH
Schiffbau
Since its founding in 1872, FSG Shipyard GmbH has designed and built more than 780 highly specialized offshore vessels. These include complex and technically challenging projects such as submersible heavy-lift carriers, seismic survey vessels, well intervention vessels, modern Ro-Ro ferries, and ships providing logistical support to the navy.
The company has extensive experience in building innovative specialty vessels for a variety of maritime applications.
German Ship Repair GmbH
Ship Repair and Technical Services
German Ship Repair GmbH brings together specialized teams to efficiently carry out ship repair projects. The company has extensive experience in ship repair in ports along the North Sea and Baltic Sea, from Le Havre to Rostock, as well as a broad network of partner companies along the coasts.
Through its affiliation with the Heinrich Rönner Group and access to the capacities of BREDO DRY DOCKS GmbH, additional shipyard and dock capacity is available to carry out repair and maintenance work flexibly and promptly.
GMW Burg GmbH
Heavy Machining, Large-Part Manufacturing, and Mechanical Engineering
Since its founding in 1991, GMW Burg GmbH has established itself as a reliable partner in the field of specialty and heavy machinery manufacturing.
The company develops and manufactures machines, systems, and large components weighing up to 100 metric tons each. Its range of services includes engineering and design, heavy-duty machining, as well as assembly, commissioning, and on-site customer service.
Lloyd Werft Bremerhaven GmbH
New Ship Construction, Conversion, and Repair
Since 1857, Lloyd Werft Bremerhaven GmbH has been synonymous with reliability and quality in shipbuilding and refit.
The company specializes in the conversion and new construction of passenger ships, prototypes, and exclusive mega-yachts. The shipyard combines many years of experience with technical expertise in challenging maritime projects.
Metall- und Holzbau Andreas Carstens GmbH und Co. KG
Steel Construction, Carpentry, and Port Maintenance
For more than 80 years, Metall- und Holzbau Andreas Carstens GmbH & Co. KG has been carrying out challenging projects in steel and wood construction. With extensive experience in the fields of steel construction, high-rise steel construction, hydraulic steel structures, navigation aid construction, and port maintenance, the company is known for providing high-quality, one-stop solutions.
A modern carpentry shop rounds out the range of services and enables the company to fulfill individual customer requests. Commercial clients, scientific institutions, and private customers from Bremerhaven and the surrounding area rely on the expertise of Metall- und Holzbau.
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NK Stahlwasserbau GmbH & Co. KG
Steel Construction, Hydraulic Steel Structures, and Bridge Construction
Equipped with state-of-the-art manufacturing capabilities and drawing on the wide range of expertise offered by the Heinrich Rönner Group, NK Stahlwasserbau GmbH & Co. KG has been successfully designing and executing projects in steel construction, hydraulic steel structures, and bridge construction for many years.
From the smallest individual component to highly complex new construction projects—we provide expert solutions for design, final assembly, and repair and maintenance work. Experience you can count on.
Rönner Verwaltungsgesellschaft mbH
Central Administrative and Support Functions for the Group
Rönner Verwaltungsgesellschaft mbH was founded in 2014 as the central service company of the Heinrich Rönner Group. Based in Bremerhaven, it consolidates central administrative and support functions across the entire group.
Its scope of activities includes human resources management, payroll and financial accounting, IT security, legal affairs, marketing, procurement, and insurance. The company supports the Group’s companies with centralized processes and coordinated services.
Roßlauer Schiffswerft GmbH & Co. KG
Bridge Construction, Steel Hydraulic Engineering, and Crane Construction
Roßlauer Schiffswerft GmbH & Co. KG has a 160-year maritime history and was founded in 1866 by the Sachsenberg brothers. By the early 20th century, the company was already one of the largest inland shipyards in Europe.
Today, the shipyard is a modern steel fabrication company with a wide range of products. Its services include bridge construction, steel hydraulic engineering, and crane construction. In addition, the company carries out projects in the field of mobile flood protection as well as for offshore wind energy, offering design, fabrication, preservation, transport, and assembly—all from a single source.
Rupertus-Strako GmbH
Corrosion Protection and Coating
Rupertus-Strako GmbH is a corrosion protection specialist based in Bremerhaven with 40 years of experience in mobile and stationary corrosion protection.
The company offers corrosion protection measures as a complete solution, from planning through to final acceptance. These services are used in steel construction, hydraulic engineering, and shipbuilding, and are designed to provide long-term protection for iron and steel structures as well as to enhance the appearance of components and facilities.
SET Schiffbau- u. Entwicklungsgesellschaft Tangermünde mbH
Specialized Shipbuilding, Ship Repair, and Ship Conversion
SET Schiffbau- und Entwicklungsgesellschaft Tangermünde mbH is one of Germany’s most experienced inland shipyards in the fields of new shipbuilding, ship repair, and ship conversion. The shipbuilding tradition at the Tangermünde site dates back to 1866, complemented by more than 60 years of shipyard history at the Genthin site.
The company is known nationwide for its ongoing construction of specialty vessels—specifically river cruise ships, passenger ships, ferries, icebreakers, dredgers, police boats, and other government vessels. In doing so, SET is increasingly focusing on future-oriented and sustainable propulsion technologies to meet the growing demands for environmentally friendly and resource-efficient shipping. In the areas of ship repair, ship refurbishment, and ship conversion, SET stands for reliability as well as the fast and cost-effective implementation of projects.
Stahlbau Nord GmbH
Shipbuilding, Steel Construction, Industrial Plant Construction, and Offshore
Stahlbau Nord GmbH has been a reliable partner in ship and mega-yacht construction, as well as in steel and industrial plant construction, for over 30 years. The company was founded in 1993 and specializes in the construction of new hulls, sections, and deck superstructures for ship and yacht building, as well as in the fabrication and assembly of steel structures for industrial applications.
The company manufactures large components made of steel, stainless steel, and aluminum that meet even the most demanding requirements of shipowners, ship designers, and industrial customers. The company has modern facilities and production capacities, waterfront locations, and a qualified and experienced workforce that ensures the highest quality, on-time delivery, and technical precision.
Unterweser Stahl- und Maschinenbau GmbH
Steel Hydraulic Engineering, Steel Construction, Mechanical Engineering, and Industrial Plant Construction
Unterweser Stahl- und Maschinenbau GmbH, known to many by its abbreviation USM, has been a reliable and renowned partner to major construction companies and steel conglomerates in the field of steel hydraulic engineering since 1992. Over the past decades, numerous national and international port, flood protection, and lock construction projects have been carried out with the company’s support.
In addition to steel hydraulic engineering, the company’s core business areas include metal fabrication, general and heavy steel construction, as well as mechanical and industrial plant engineering. Ship repair is also a central component of its range of services.
USM-Nord Unterweser Schiff- und Maschinenbau GmbH
Ship Repair, Steel Hydraulic Engineering, and Offshore
For decades, USM-Nord Unterweser Schiff- und Maschinenbau GmbH has been one of the leading companies on the North German coast in the manufacture of technically sophisticated steel structures, incorporating corrosion protection and propulsion technology, and sees itself as a problem-solver bridging the gap between water and land.
Whether in steel hydraulic engineering, ship repair, or the offshore sector, USM-Nord is a professional partner to renowned major clients and is known nationwide for the timely and cost-effective fulfillment of customer requirements.
V + S Vertrieb und Service GmbH
UVV and Material Testing
V + S Vertrieb und Service GmbH is a medium-sized company headquartered in the fishing port of Bremerhaven and employs approximately 20 qualified staff members.
For many years, the company has been synonymous with high-quality services and reliable solutions in the maritime sector.
Through thorough training, many years of professional experience, and ongoing education and professional development programs, V + S Vertrieb und Service GmbH ensures that the highest quality standards are met and that its customers’ requirements are reliably fulfilled at all times. Its range of services includes professional UVV inspections and material testing, which help ensure the safety, functionality, and quality of systems, equipment, and components.
TSU GmbH
Lifting, Conveying, and Plant Engineering
TSU GmbH, headquartered in Bremerhaven, is a medium-sized company with many years of experience in the development and manufacture of custom load-handling devices, personnel-handling devices, special containers, and custom systems. The company develops tailor-made solutions for the safe and efficient lifting, moving, and rotating of loads in industry, port operations, energy technology, and other demanding applications.
The range of services includes consulting, structural analysis, design, manufacturing, testing, documentation, and product delivery. In addition, the company offers repairs, overhauls, maintenance, and UVV inspections. All solutions are implemented in accordance with applicable safety and quality standards, including UVV, KTA, and the Machinery Directive 2006/42/EC.