Ostseestaal

What Ostseestaal does

Ostseestaal Gmb & Co. KG is a specialized German steel fabricator founded in 1996 and headquartered in Stralsund, with a second production site in Schwerin. The company's core competence is 3D cold forming of sheet metal — using 500-tonne press systems to shape steel, stainless steel, aluminium, and special alloys up to 5 cm thickness — complemented by laser cutting, welding assembly, and turnkey kit delivery. It serves shipbuilding (yacht, commercial, research vessels), aerospace (moulds for CFRP and liquid hydrogen tanks, additive manufacturing R&D), general industrial/renewable-energy customers, and select architecture projects. Revenue is generated through project-based B2B contracts with enterprise and public-sector buyers; products are delivered worldwide on a turnkey basis.

The company operates as part of a four-entity group: Ostseestaal (core cold forming), Ampereship GmbH (electric solar-powered commercial vessels, spun out in 2017), Ostsee Marine Solutions GmbH (premium yacht doors/hatches and interior components, established 2021), and Ostsee Tank Solutions GmbH (specialized tank solutions, established 2021). Go-to-market is direct enterprise field sales, with dedicated Business Unit Managers for Shipbuilding and Aerospace/Industry, dedicated regional sales coverage in the Netherlands and Italy, and Sales Engineers serving as the interface between sales and production. Pricing is quote-based and project-specific rather than list-based.

R&D is a meaningful activity: Ostseestaal leads or partners in publicly funded projects (EU, federal, LuFo aviation programme) with the University of Rostock, Fraunhofer IGP and IOF, and Airbus, including the TACOMA-OS modular mould programme for CFRP liquid hydrogen tanks and NIWAAM/WAAM additive manufacturing with FeNi36 (1.3912). The company is recognized as an IHK Top Training Company and uses Germany's dual vocational education system; it employs approximately 200 staff. Production capacity was expanded by ~30% in April 2022 via a new leased hall at the Volkswerft Maritime Industrial and Commercial Park in Stralsund.

Name

Ostseestaal

Legal name

Ostseestaal GmbH & Co. KG

Website

https://ostseestaal.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

51–100 employees

Short description

Ostseestaal is a German specialty manufacturer (founded 1996, Stralsund, ~200 employees) that performs 3D cold forming of steel, stainless steel, aluminium and special alloys into custom kits for shipbuilding, aerospace, renewable-energy industrial and architecture clients worldwide.

Ownership category

akta.pro rank

Product category

Steel Fabrication and Metal Forming

NAICS

Sheet Metal Work Manufacturing (332322), Machine Shops (332710)

SIC

Sheet Metal Work (3444), Fabricated Plate Work (Boiler Shops) (3443)

akta.pro primary industry

Marine-Grade Steel Plate, Profiles & Sections (IMAJAKAA)

akta.pro secondary industry

Specialty & Alloy Steel (Stainless, Tool Steel, Electrical Steel, High-Strength/HSLA) (IMAKABAJ)

Keywords

• 3D cold forming
• Steel fabrication
• Custom metal forming
• Electric shipbuilding
• Aviation tooling

Headquarters

HQ city

Stralsund

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Custom Steel Kit Manufacturing: Manufacture and supply of custom-fit kits made from cut-to-size and three-dimensionally formed sheet metal. Products delivered worldwide on turnkey basis. Revenue from custom project-based contracts.
2. Electric Ship Construction (via Ampereship): Construction of electric solar-powered ships and vessels through subsidiary Ampereship GmbH. Includes electric car ferries and passenger ships for inland waterways.
3. Research and Development Services: Participation in publicly funded R&D projects (EU, federal). Technology development in collaboration with universities and research institutions.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels9 records

Core offering

Ostseestaal manufactures custom-fit, three-dimensionally cold-formed sheet metal kits from steel, stainless steel, aluminium, and special alloys up to 5cm thick, using specialised 500-tonne press technology. The company delivers turnkey steel solutions for shipbuilding, aerospace, renewable energy, industry, and architecture customers worldwide. Its offering extends through subsidiaries Ampereship (emission-free electric solar-powered ships) and Ostsee Marine Solutions (premium yacht doors, hatches, and outer skin components).

Product overview

Ostseestaal GmbH & Co. KG is a specialized steel processing company headquartered in Stralsund, Germany, operating as part of a three-company group including Ampereship GmbH (electric shipbuilding) and Ostsee Marine Solutions GmbH (yacht components). The core offering centers on 3D cold forming of steel, stainless steel, aluminium and special alloys using advanced press technology, complemented by laser cutting, welding assembly, and complete shipbuilding solutions. The company serves shipbuilding, aerospace, renewable energies, industry, and architecture sectors globally, delivering custom-fit kits and turnkey products worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• 3D Cold Forming (3D-Kaltumformung) of Sheet Metal Three-dimensional cold forming of complex steel shapes using 500-tonne presses, processing steel, stainless steel, aluminium, and special alloys up to 5cm thick. Delivered as custom-fit, turnkey assembly kits to shipbuilding, aerospace, industry, and architecture customers worldwide.
• Laser Cutting and Forming Services Precision laser cutting and forming services producing cut-to-size sheet metal components that are subsequently 3D formed into assembly kits for customers.
• Welding Assembly Production Complete welding assembly production for complex steel structures and welded constructions, supporting turnkey delivery of custom-fit kits and complete assemblies.
• Ampereship Emission-Free Electric Solar-Powered Ships Electric solar-powered ships for commercial inland shipping, including passenger vessels, car ferries, and research vessels with battery and solar propulsion systems. Delivered to public transport operators, lake shipping companies, and research institutions across Europe.
• Ostsee Marine Solutions Premium Yacht Doors and Hatches Development, manufacture, assembly, and installation of high-quality outer skin doors and hatches for superyachts, megayachts, and naval vessels, produced at the Schwerin facility.

Quantifiable outcome

• Digitalisation of cold forming reduces press downtime by approximately 35%
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• AIRBUS (LuFo VI-3 Programme)coreStrategic or Co-development Partner · 1 July 2023Lead partner in TACOMA-OS aviation research project for developing modular lightweight moulds for CFRP liquid hydrogen tanks. Ostseestaal contributing 3D cold forming expertise for sustainable mould manufacturing.
• MSR Service GmbHcoreStrategic or Co-development Partner · 18 August 2022Research partner in the 'Digitalisation of cold plastic forming through continuous quality control' project. Collaborating on sensor technology and digital process monitoring for 3D cold forming.
• University of RostockcoreStrategic or Co-development Partner · 18 August 2022Academic research partner in maritime research programme project for digitalising cold forming processes. Contributing expertise in engineering and production technologies.
• Fraunhofer Institute IGP (Grossstrukturen in der Produktionstechnik)coreStrategic or Co-development Partner · 18 August 2022Research partner in digitalising cold plastic forming project. Contributing expertise in large-scale production engineering.
• Fraunhofer Institute IOF (Angewandte Optik und Feinmechanik)coreStrategic or Co-development Partner · 18 August 2022Research partner in digitalising cold plastic forming project. Contributing expertise in optics and precision engineering.
• Ampereship GmbHcoreStrategic or Co-development Partner · 1 January 2021Subsidiary company specializing in electric shipbuilding, emission-free mobility, lightweight construction, and subsequent electrification of vessels. Emerged from Ostseestaal's electric ship business unit in 2017. Key partner for zero-emission vessel projects.
• Ostsee Marine Solutions GmbHcoreStrategic or Co-development Partner · 1 January 2021Sister company specializing in interior fittings, complete solutions, and maritime standard equipment. Produces high-quality outer skin doors and hatches for superyachts, megayachts, and naval vessels.
• Ostsee Tank Solutions GmbH (OTS)minorStrategic or Co-development Partner · 1 January 2021Sister company founded in 2021 as an offshoot of Ostseestaal for specialized tank solutions.
• Schweißtechnische Lehr- und Versuchsanstalt MV GmbHminorStrategic or Co-development PartnerResearch institution partner in NIWAAM feasibility study for additive manufacturing of moulds using FeNi36 material. Contributed welding expertise for WAAM process development.

Scale indicators6 records

Recent moves12 records

Expansion highlights6 records

Broad incumbents

• Salzgitter AG: Salzgitter AG is a major German steel producer serving shipbuilding, construction, and industrial customers with a broad product portfolio. Comparable to Ostseestaal as a larger incumbent in the same European steel value chain serving marine and industrial sectors.
• Wärtsilä: Wärtsilä is a Finnish marine equipment and services provider offering propulsion, electrical systems, and lifecycle services for marine and energy markets. Comparable to Ostseestaal's marine equipment orientation, particularly Ampereship's electric ship propulsion focus.
• ArcelorMittal: ArcelorMittal is the world's largest steel producer with broad coverage of flat and long products, including marine grades. Comparable as a broad incumbent whose steel products feed similar shipbuilding and industrial supply chains that Ostseestaal serves.
• Voestalpine: Voestalpine is an Austrian specialty steel and processing group with significant presence in automotive, railway, and industrial applications. Comparable to Ostseestaal in specialty steel processing capabilities and serving demanding industrial applications.
• Cargotec (Kalmar, MacGregor): Cargotec is a Finnish provider of cargo and load handling solutions for marine, ports, and logistics, including MacGregor marine equipment. Comparable as a broad marine equipment incumbent supplying shipbuilders and operators similar to Ostseestaal's customer base.
• ThyssenKrupp Steel Europe: ThyssenKrupp Steel Europe is one of Europe's largest flat steel producers serving automotive, construction, and industrial customers. Comparable to Ostseestaal as a major German steel incumbent whose products flow into similar downstream applications.

Direct peers

• Outokumpu: Outokumpu is a global leader in stainless steel production, including for marine, chemical, and industrial applications. Comparable to Ostseestaal's stainless steel processing capabilities and shared focus on corrosion-resistant materials for demanding environments.
• SSAB: SSAB is a Nordic specialty steel producer with strong focus on high-strength steel for marine, heavy transport, and structural applications. Directly comparable to Ostseestaal in processing specialty alloys and serving shipbuilding and heavy industry customers.
• Dillinger Hüttenwerke: Dillinger is Europe's leading producer of heavy steel plates for shipbuilding, offshore, and pressure vessel applications. Directly comparable to Ostseestaal's marine steel plate forming business, sharing the same core customer base in shipyards and marine engineering.

Others

• Meyer Werft: Meyer Werft is one of the world's leading cruise and passenger ship builders based in Papenburg, Germany. Not a direct competitor but a key German shipbuilding customer profile for Ostseestaal's hull, deck, and outfitting components.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@Ostseestaal
• Facebookfacebook.com/ostseestaal
• LinkedInlinkedin.com/company/ostseestaal-gmbh
• Instagraminstagram.com/explore/locations/201605019856219/ostseestaal-gmbh-co-kg
• TikToktiktok.com/@ostseestaal?_t=ZN-8vRJQdFfvYl&_r=1

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ostseestaal