What EXTERSTAHL does

EXTERSTAHL GmbH is a privately held Austrian steel service center and processor headquartered in Linz, founded in 1994 as a subsidiary of London-based Extermetal Ltd. The company manufactures and supplies non-alloyed and micro-alloyed structural steel plates, quarto plates, and prefabricated steel components for machinery, vehicle, boiler, and construction machinery manufacturers across Central and Southeastern Europe. Its core technology stack is anchored at the Krems Danube harbor service center (commissioned 2003, fourth logistics hall completed 2013), which integrates cut-to-length lines, flame and plasma cutting, drilling, sandblasting, and 20,000 m² of storage and production space, with downstream prefabrication operations in Varaždin, Croatia, and sales/processing subsidiaries in Zagreb and Bosnia.

The commercial model is sales-led direct B2B, with long-term framework supply contracts at fixed prices combined with short-term call-off delivery, just-in-time logistics by ship, rail, or truck, and EXTERSTAHL assuming financing, price risk, and storage risk on behalf of customers. Roughly 70% of revenue is exported to neighboring and Central/Southeastern European countries. The proprietary Exterstahl RELAX brand (launched 2018) provides laser-quality plates with tolerances significantly tighter than EN 10051 standards, marketed to automated laser processing customers. Photovoltaic installations at Krems and Varaždin (2019) cover a meaningful share of site electricity consumption.

The group has operated without annual losses for 20+ years and reported an equity ratio of approximately 50% (as of 2014). Group revenues first exceeded €100 million in 2005, and Exterstahl GmbH individually surpassed €100 million in 2007; no more recent revenue disclosure is available. Ownership remains with founder-era principals Wolfgang Schepe and Manfred Lehner as Managing Directors, with no disclosed institutional, PE, or VC involvement.

Name

EXTERSTAHL

Legal name

EXTERSTAHL GmbH

Website

https://exterstahl.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

EXTERSTAHL is a privately held Austrian steel service center that supplies non-alloyed structural plates, quarto plates, and prefabricated steel components — including its proprietary RELAX laser-quality line — to machinery, vehicle, boiler, and construction machinery manufacturers across Central and Southeastern Europe.

Ownership category

akta.pro rank

Product category

Structural Steel Plates

NAICS

Steel Product Manufacturing from Purchased Steel (3312)

SIC

Sheet Metal Work (3444)

akta.pro primary industry

Steel Service Centers & Processing (Slitting, Cut-to-Length, Blanking, Leveling) (IMAKABAL)

akta.pro secondary industry

Steel Plate, Sections & Welded Assemblies (IMADACAD)

Keywords

• Structural steel plates
• Steel service center
• Laser quality plates
• Hot rolled steel
• Steel plate prefabrication

Headquarters

HQ city

Linz

HQ country

Austria

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Steel Product Sales: Sale of hot-rolled steel plates cut from coils, quarto plates, and prefabricated steel products. Products include unalloyed structural steels, micro-alloyed fine-grain structural steels up to S700MC, pressure vessel steels, weather-resistant structural steels, and steels for cold forming.
2. Steel Processing Services: Custom processing including flame cutting, plasma cutting, and sandblasting. They also handle financing and assume price and storage risk for customers through long-term framework contracts.
3. Logistics and Delivery Services: Own logistics with delivery by ship, rail, or truck including just-in-time delivery. They assume financing, price risk, and storage risk for customers.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

EXTERSTAHL manufactures and supplies hot-rolled structural steel plates (Quality Plates cut from coils, heavy Quarto plates) and its proprietary Exterstahl RELAX laser-quality plates, alongside custom prefabrication services (flame cutting, plasma cutting, sandblasting). It operates a steel service center with cut-to-length lines and a trimodal Danube harbor logistics hub, serving machinery, vehicle, boiler and construction machinery manufacturers in Central and Southeastern Europe.

Product overview

Exterstahl is a steel plate supplier and logistics center offering a comprehensive portfolio of steel products and processing services. The core product line consists of Exterstahl RELAX (premium laser-quality plates), Quality Plates cut from coils, and Quarto heavy plates, complemented by prefabrication services including flame cutting, plasma cutting, and sandblasting. All products are sourced from selected European steel mills. The company operates a steel service center in Krems, Austria, and subsidiary locations in Croatia (Zagreb, Varaždin) for processing, storage, and distribution across Central and Southeastern Europe.

Differentiator

Problem solved

Functional benefit

Brands

• Exterstahl RELAX: Proprietary laser-quality steel plate brand developed for processing on state-of-the-art laser equipment, optimized for high performance in automated production with superior cutting capability, reduced post-processing requirements, and very limited flatness tolerances compliant with EN 10051 standards. Available in multiple surface finishes including scale-resistant, brushed, brushed & oiled, and pickled options.

Products and services

• Exterstahl RELAX laser-quality steel plates Proprietary premium steel plates developed for laser processing on automated laser equipment; reduced flatness (less than 1/3 of EN 10051), width (max 1/3) and length (max 1/2) tolerances, and improved squareness (1/2 of EN 10051). Available in Relax (scale-resistant), Relax brushed, Relax brushed & oiled, and Relax pickled surface variants.
• Quality Plates from Coil Hot-rolled quality steel plates cut from coils on a modern cut-to-length line with tight dimensional tolerances; thickness 2–15 mm, widths up to 2,040 mm, lengths up to 14,000 mm. Available in structural (S235–S355), pressure vessel (P235–P355), high-strength formable (S315MC–S700MC) and cold-formable (DD11–DD13) grades; surfaces in black, pickled and brushed finishes.
• Quarto Plates Heavy quarto steel plates in 4–250 mm thickness, up to 3,500 mm width and 14,000 mm length. Includes non-alloyed structural steels (S235–S355), pressure vessel steels (P235–P355, 16Mo3) and shipbuilding grades (Gr.A, EH36, DH36); ultrasonic testing available on request.
• Prefabrication services (flame cutting, plasma cutting, sandblasting, drilling) Custom steel plate prefabrication: flame cutting (4 units, 10–250 mm thickness), plasma cutting including 3D (1+1 units, 4–50 mm), drilling up to 32 mm thickness, and sandblasting up to 3,200 mm width and 600 mm height; cut types include straight, V, Y, X and K cuts.

Quantifiable outcome

• Flatness deviations limited to less than 1/3 of normal EN 10051 standards
• +3 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered minor and core.

• ŽeljeznarminorChannel Partner/ Reseller/ Distributor · 1 January 2014Acquired retail ironware business in Zagreb in autumn 2014 through asset acquisition. Expanded retail presence in Croatian market.
• HOREX Trade d.o.o.coreStrategic or Co-development Partner · 1 January 2013Subsidiary in Zagreb, Croatia established 1996 as joint company with Dunaferr steel mill. Later became fully owned by Exterstahl. Serves local Croatian market and exports to Hungary, Slovenia, Serbia, Romania, Bulgaria, and Bosnia. Location expanded in 2013 with Mechel Varazdin assets.
• Exterfer d.o.o. LjubljanaminorChannel Partner/ Reseller/ Distributor · 1 January 2011Slovenian steel trading company established 2003 (51% majority share). Majority stake sold to minority partners in 2011, no longer part of Exterstahl group.
• BH-Rex (Zenica)minorChannel Partner/ Reseller/ Distributor · 1 January 2004Subsidiary established 2004 in Zenica, Bosnia-Herzegovina as steel trader and representative.

Scale indicators9 records

Recent moves13 records

Expansion highlights4 records

Broad incumbents

• SSAB AB: Nordic high-strength steel producer offering hot-rolled plate, cut-to-length plate, and the Hardox / Strenx brands frequently used in construction machinery and heavy transport. Comparable for high-strength structural grades (up to S700MC) and machinery OEM customers; larger and more upstream than EXTERSTAHL.
• ArcelorMittal Europe – Flat Products: World's largest steel producer with extensive European service-center and distribution operations selling cut-to-length plate and quarto plate to industrial customers. EXTERSTAHL sources from selected European mills in this category; the relationship is both supplier overlap and competitive downstream.
• Salzgitter AG: German integrated steel producer operating the Mannesmann / Salzgitter Mannesmann Handel service-center network, cutting plates and tubes from coils and serving machinery and construction equipment OEMs across Europe. Overlaps directly with EXTERSTAHL in cut-to-length plate and quarto plate distribution but at much larger scale.
• Tata Steel Nederland / Tata Steel Europe: European steel producer and service-center operator supplying hot-rolled plate and processed steel for construction, machinery, and yellow-goods customers. Overlaps with EXTERSTAHL in cut-to-length plate supply to machinery OEMs but at substantially larger scale and broader product scope.
• Voestalpine AG: Austrian-headquartered global steel and steel-processing group with a major Steel Division that runs cut-to-length and plate processing lines across Europe. Closest geographic and product overlap to EXTERSTAHL and operates in the same CEE end markets, but at vastly greater scale and vertical integration.

Direct peers

• Jacquet Metals SA: European specialist stainless and engineering steel distribution and service-center group operating cut-to-length and plate processing across France, Germany, Italy, and the wider EU. Closely comparable mid-cap service-center business model with focus on small-batch, special-format supply.
• Klöckner & Co SE: One of Europe's largest independent steel and metal distribution groups, with a substantial service-center footprint producing cut-to-length plate, slit coil, and processed steel for industrial customers. Closely comparable business model to EXTERSTAHL, including the Klöckner Metals Online shop — a digital channel EXTERSTAHL lacks.
• Wuppermann AG: Family-owned European steel service center running cut-to-length and slitting lines across Germany, Austria, Hungary, and the Netherlands. Highly comparable mid-market steel processor serving machinery and automotive customers, with overlapping CEE footprint.
• Marcegaglia Group: Italy-based global steel processing group operating service centers for flat steel, tubes, and prefabricated components across Europe. Comparable in processing capability (cut-to-length, plasma cutting, surface treatment) and customer mix of machinery and construction OEMs.
• Dillinger Hütte / Dillinger Steel: European heavy plate producer specializing in quarto plates for machinery, boiler, and pressure-vessel applications. Directly comparable for EXTERSTAHL's quarto plate line and pressure-vessel steel grades (P235-P355, 16Mo3), though Dillinger operates upstream of EXTERSTAHL's service-center layer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries7 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 EXTERSTAHL