Heinrich Krug

What Heinrich Krug does

Heinrich Krug GmbH & Co. KG is a privately held German specialty manufacturer of rail infrastructure components, headquartered in Dortmund and founded in 1921. The company operates across five product categories: rails (Vignol, Kranschienen, Rillenschienen, Spurrillenschienen, Konstruktionsschienen, and Feldbahn), special profiles (warm-rolled and cold-profiled), crane runway technology (Klemmen clamps, Unterlagen base plates, Auflager supports including the proprietary 'Krug' fastening system), Oberbau/track construction materials (fish plates, base plates, tension clamps, rail pads, screws, accessories), and rail measurement services. Its core competency is the manufacturing, processing, and integration of rail profiles meeting tight tolerance requirements for industrial, railway, tram, and crane runway applications, supported by in-house CNC machining, rail processing (cutting, drilling, milling), and field installation with documented measurement protocols.

The company sells primarily through direct enterprise field sales, with dedicated contacts for each of five product areas, complemented by an event-driven acquisition motion centered on major rail industry trade shows (InnoTrans in Berlin, iaf in Münster, and Finnish VR Track seminars). Revenue is generated almost entirely from one-time hardware sales of rail components and engineered systems, with a smaller stream of professional services revenue from Schienenvermessung (rail measurement/surveying). Distribution is primarily domestic Germany, supplemented by export partnerships: Ratek in Finland and Srubena Unia SA in Poland. The company holds ISO 9001 certification, exhibits at InnoTrans (most recently announced for 2024), and operates a relatively broad product catalog with downloadable technical materials in German and English.

Following the retirement of long-time Managing Director Heiko Berning at end-2023, leadership transitioned to Fedor Hawryluk and Björn Stiefermann effective January 1, 2024. Earlier corporate moves included the 2018 closure of the Weichenbau (switch construction) department and the 2011 consolidation of previously separate divisions under the unified Heinrich Krug brand. The company maintains a German partnership (GmbH & Co. KG) legal structure with Berning & Harras GmbH as general partner, and shows no evidence of external funding, M&A activity, or new geographic expansion since the 2012 establishment of its Finnish and Polish distribution channels.

Name

Heinrich Krug

Legal name

Heinrich Krug GmbH & Co. KG

Website

https://heinrich-krug.de

Company type

Private

Founded year

1921

Operating status

Operating

Headcount range

11–50 employees

Short description

Heinrich Krug GmbH & Co. KG is a Dortmund-based German specialty manufacturer, founded 1921, producing rail profiles, crane runway systems, track construction components, and rail measurement services for industrial, railway, and construction customers via direct field sales and event-driven channels.

Ownership category

akta.pro rank

Product category

Rail Infrastructure & Crane Rail Systems

NAICS

Overhead Traveling Crane, Hoist, and Monorail System Manufacturing (333923), Steel Product Manufacturing from Purchased Steel (3312)

SIC

Railroad Equipment (3743), Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Cranes, Hoists & Overhead Material Handling (Industrial) (IMAHABAE)

akta.pro secondary industry

Fasteners, Anchors & Connectors (Bolts, Weld Studs, Plates) (IMADACAJ)

Keywords

• Rail infrastructure
• Crane rail systems
• Rail profiles
• Track construction materials
• Special steel profiles

Headquarters

HQ city

Dortmund

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Rail Profiles and Special Profiles: Sale of rail profiles including Vignolschienen, Rillenschienen, Kranschienen, Spurrillenschienen, and Spezialprofile (special profiles) manufactured through warm rolling and cold profiling. One-time product sales with standard and custom specifications.
2. Kranbahntechnik (Crane Rail Technology): Complete crane rail systems including fastening materials, supports, installation and on-site assembly. Includes production of support plates on CNC machines and on-site mounting with documentation through measurement protocols.
3. Oberbau / Handel (Track Construction / Trading): Track construction materials including baseplate materials, accessories, and hardware for direct access and immediate delivery capability. Flat bars, ribbed plates, rail spikes, sleeper screws, clip plate screws, clip plates, tension clamps, intermediate pads, and special constructions.
4. Schienenvermessung (Rail Measurement Services): Rail measurement services including track surveying and measurement data analysis. Visualization of measurement results enabling customers to make informed decisions and take appropriate measures.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Heinrich Krug manufactures and supplies rail infrastructure components including Vignolschienen, Kranschienen, Rillenschienen, Spurrillenschienen, and Konstruktionsschienen, along with custom warm-rolled and cold-profiled special profiles. The company also delivers complete crane rail systems (Kranbahntechnik) with proprietary 'Krug' fastening systems, plus track construction materials (Oberbau) such as fish plates, base plates, tension clamps, and rail pads, supported by in-house rail processing and measurement services.

Product overview

Heinrich Krug is a German rail infrastructure company with over 100 years of history (established 1921), specializing in manufacturing and supplying comprehensive rail systems and crane runway technology. The product portfolio is organized into five main categories: (1) Schienen (Rails) - including Feldbahn- & Vignolschienen, Kranschienen, Rillenschienen, Spurrillenschienen, and Konstruktionsschienen, plus rail processing services; (2) Profile - Spezialprofile (warm-rolled and cold-profiled special profiles) and Sonderprofile (custom profiles per customer specification); (3) Kranbahntechnik - crane rail fastening systems including Klemmen (clamps), Unterlagen (base plates), and Auflager (supports), offering the proprietary 'Krug' crane rail fastening system; (4) Oberbau - upper track structure components including Flachlaschen (fish plates), Rippenplatten (rail base plates), Spannklemmen (tension clamps), Zwischenlagen (rail pads), Sonderkonstruktionen (special constructions), and Zubehor (accessories); and (5) Dienstleistungen - Schienenvermessung (rail measurement services). The company operates from Dortmund, Germany, serves industrial, railway, and construction sectors worldwide, and is ISO certified.

Differentiator

Problem solved

Functional benefit

Products and services

• Feldbahn- & Vignolschienen (Field and Vignole Rails) Rails for field railways and standard Vignole rail applications, available in profiles S7, S10, S14, S18, S20, S24, S30, 33E1, 41E1, 49E1, 49E5, 54E1, 54E4, 60E1, 60E2, and R65, in stock lengths from 5m to 30m.
• Kranschienen (Crane Rails) Rails specifically designed for crane runway systems and industrial overhead crane applications, available in profiles A45 to A150 and American standards (CR104 to CR175), in stock lengths of 10/12/15m.
• Rillenschienen (Grooved Rails) Grooved rails for urban tram, streetcar, and industrial rail applications, available in profiles 57R1, 67R1, 59R2, 60R1, 60R2, 54R2, and Ri55NK, in stock lengths of 12/15/18m.
• Spurrillenschienen (Guard Rails) Special guard rails (Bauart Krug design) for asphalt, concrete, and pavement protection in industrial yards, assembly halls, and crossing areas. The proprietary design works in combination with most Vignole rails.
• Konstruktionsschienen (Construction Rails) Rails for specialized construction applications including tongue rails (Zungenschienen), wheel guide rails (Radlenkerschienen), and U-type rails, with tensile strengths of 880/1080 N/mm2.
• Schienenbearbeitung (Rail Processing Services) Custom rail processing services including length specification, cut direction, angle cutting (45 degree mitre cuts), and drilling. Rails are measured overhead with specified effective length.
• Spezialprofile (Special Profiles) Warm-rolled special profiles (Z-profiles, T-profiles, flooring angles, 'Hespeneisen', angle-like profiles, hoisting rails) and cold-profiled special profiles (U-profiles, L-profiles, handrails/bridge handrails) for industrial and construction applications.
• Sonderprofile (Custom Profiles) Custom profile manufacturing according to customer specifications using cold profiling (EN10162) and bending (DIN 6930 + 6935) processes.
• Klemmen (Crane Rail Clamping Systems) Crane rail clamping systems with over 40 years of experience. Features include easy installation, maintenance-free operation, adjustable rail positioning, and self-blocking action for horizontal force absorption.
• Unterlagen (Crane Rail Base Plates) Crane rail base plates for both discontinuous (single support) and continuous installations. Made from wear-resistant synthetic elastomer with steel reinforcement for form stability.
• Auflager (Crane Rail Supports) Support bearings for crane rail installation on concrete foundations, enabling height adjustment during installation. Includes the proprietary 'Krug' crane rail fastening system with solutions ranging from light transport carts to container cranes.
• Flachlaschen (Fish Plates) Rail joint connectors for Vignole rails (profiles FL7 to FL30a) and grooved rails (FL37, FL37a, FL Ri 59/60, FL NP 4/4a). Includes fish plate bolts (Laschenbolzen) and spring washers (Federringe).
• Rippenplatten (Rail Base Plates) Weldable and plate-type rail support plates for attachment to steel sleepers and beams. Types include Rph (rivet head plates), Rpb, Rp (standard plates), Rpo (similar type), and Rus (weldable) variants.
• Spannklemmen (Tension Clamps) Tension clamps for rail fastening systems, including Skl 12 model.
• Zwischenlagen (Rail Pads) Elastic rail pads for various rail profiles (60E1/E2, 49E1/E5, 54E4, 67R1) in multiple types (Zw 661a through Zw 691) with different thicknesses and weights to reduce vibration and distribute loads.
• Sonderkonstruktionen (Special Track Constructions) Custom track construction solutions including track terminations (Gleisabschlusse) in fixed and foldable versions for Vignole and grooved rails, and protective boxes (Schutzkasten) for foldable track terminations.
• Zubehör (Track Accessories) Track accessories including switch markers (Weichenmerkzeichenhalter, Weichenmerkzeichen RA 12), protective holding signals (Schutzhaltesignal SH 2), concrete posts for switch markers, reflector signals (Weichenruckstrahlsignal Wn 1/2), and day signals.
• Schienenvermessung (Rail Measurement Services) Professional rail surveying and measurement services for installation quality assurance. Includes measurement data analysis and visualization of results to support informed customer decision-making.

Quantifiable outcome

• Track/surface lifespan extension through proper rail measurement and high-quality fastening systems

Segments3 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

Five partnerships are on record, tiered minor, core and strategic.

• Bahnbedarf Möhlau GmbH & Co. KGminorChannel Partner/ Reseller/ Distributor · 1 April 2018Recommended partner for switch construction (Weichenbau) services following closure of Heinrich Krug's switch construction department in April 2018. Located in Gräfenhainichen OT Möhlau, Germany, contact person Torsten Flug.
• Srubena Unia SAcoreTechnology or Integration · 1 April 2012German sales partner for Polish manufacturer Srubena Unia SA (founded 1832), one of the largest fastener manufacturers in Poland. The partnership expands the Oberbau and DIN screw product range with high-quality, modern manufacturing. Srubena Unia SA has international recognition for qualified and modern production facilities.
• RatekcoreChannel Partner/ Reseller/ Distributor · 1 January 2012Finnish distribution partner representing Heinrich Krug at VR Track (Finnish State Railway) information seminars. Ratek supports sales of Oberbaumaterial (track construction materials) including Spurrillenschienen (groove rails) in the Finnish market. Joint participation in customer seminars in Turku and Hämeenlinna.
• ArcelorMittal Schienen Vertriebsgesellschaft mbHstrategicChannel Partner/ Reseller/ Distributor · 1 January 2012Co-exhibitor at InnoTrans trade shows. Joint presentation at InnoTrans 2012 and 2016 trade shows in Berlin, representing rail industry expertise.
• Fehlings-GruppestrategicChannel Partner/ Reseller/ Distributor · 1 January 2012Joint exhibition partner at InnoTrans trade shows. Co-presented with ArcelorMittal and Fehlings-Gruppe at InnoTrans 2012 and 2016.

Scale indicators2 records

Recent moves8 records

Expansion highlights4 records

Broad incumbents

• Voestalpine AG: Voestalpine is a major European steel-based technology group with a substantial railway systems division producing rails, turnout components, and rail fastening systems. Comparable as a broader incumbent offering overlapping products to Heinrich Krug's rail profiles and fastening systems in European markets.
• EVRAZ plc: EVRAZ is a major vertically integrated steel and rail products manufacturer producing rails, fastenings, and sleepers for European and global markets. Comparable as a broader incumbent offering similar product categories to Heinrich Krug but at significantly larger scale.
• British Steel: British Steel manufactures steel rails (including vignole, grooved, and crane rail profiles) for European and global rail infrastructure markets. Comparable as a rail manufacturer whose products overlap with Heinrich Krug's Vignolschienen, Rillenschienen, and Kranschienen product ranges.
• ArcelorMittal: ArcelorMittal is the world's largest steel producer with significant rail steel manufacturing through its long products division. Comparable as a strategic partner (co-exhibitor and likely supplier) and broader incumbent in rail steel products that Heinrich Krug profiles, processes, and distributes downstream.
• Progress Rail Services (Caterpillar): Progress Rail is a Caterpillar subsidiary offering rail products, fastening systems, and rail infrastructure solutions globally. Comparable as a broad rail industry incumbent with overlapping fastening, rail, and track infrastructure offerings versus Heinrich Krug's portfolio.

Direct peers

• Rail.One GmbH: Rail.One is a German manufacturer of concrete sleepers, rail fastening systems, and track infrastructure products. Directly comparable as a German-speaking rail infrastructure specialist competing in adjacent product categories (sleepers, fastening) to Heinrich Krug's track construction portfolio.
• L.B. Foster Company: L.B. Foster provides rail products, infrastructure, and monitoring solutions including rail fastening systems and special trackwork. Directly comparable to Heinrich Krug in niche rail infrastructure components serving industrial and railway customers in Europe and North America.
• Vossloh AG: Vossloh is a leading global manufacturer of rail fastening systems, rail switches, and rail infrastructure components. Directly comparable to Heinrich Krug's Kranbahntechnik fastening systems and Oberbau track construction products, with broader geographic reach and integrated project scope.
• Pandrol (Delachaux Group): Pandrol is one of the world's largest rail fastening system manufacturers, offering clips, baseplates, and rail infrastructure solutions globally. Directly competes with Heinrich Krug's rail fastening, base plate, and tension clamp product categories across global rail and crane applications.

Regional players

• Leonhard Weiss GmbH & Co. KG: Leonhard Weiss is a major German construction company with substantial rail infrastructure capabilities including track construction and rail-related civil works. Comparable as a regional rail construction player operating in the same German market as Heinrich Krug with overlapping customer segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Heinrich Krug