Edilon Sedra

What Edilon Sedra does

Edilon Sedra (legal entity: edilon)(sedra Group B.V.) is a Netherlands-based specialist engineer and supplier of ballastless (slab track) rail fastening systems, founded in 1970 and headquartered in Haarlem. The company designs, manufactures, and technically supports proprietary track solutions built around its Corkelast® two-component elastomer technology, spanning five core product families: the Embedded Rail System (ERS), Embedded Block System (EBS), Sound Damping System (SDS), Direct Fastening System (DFS), and Trackelast® elastic mats, plus specialised variants for level crossings (LCS), crane rails (CRS), and retrofit (EBS-RF). Systems are certified to EN 13481-5 and EN 13230-3, with ISO 9001:2015 and ISO 14001:2015 quality and environmental certifications held by the Dutch and German operating entities.

The company serves four end-markets — heavy rail, tram and light rail, metro, and industry/crane rail — with customer bases dominated by government transit authorities and rail infrastructure managers (e.g., Metrorex Bucharest, Warsaw Metro, Metro de Madrid, Wiener Linien, ProRail Netherlands, Infrabel Belgium, MÁV Hungary, Transport Canberra, FGV Valencia) alongside engineering firms and large industrial operators (Port of Felixstowe, ArcelorMittal, Real Madrid). Notable project references include 12 km of ERS delivered in Canberra, 15 km of EBS for Bucharest Metro Line 5, more than 30 km of EBS for Warsaw Metro Line 2, and the retractable pitch system at the Santiago Bernabéu stadium. Edilon Sedra operates as a wholly-owned subsidiary of the James Walker Group, a diversified engineering products conglomerate, and reaches customers exclusively through direct enterprise field sales via eleven wholly-owned regional offices across Europe, Australia, India, South Africa, and North America.

Revenue is project-based, generated from two streams: sales of proprietary hardware systems (Corkelast® and Trackelast® product families) and value-added application-engineering, BIM, construction-support, and training services bundled into project delivery. Pricing is negotiated per project and not publicly disclosed, reflecting the bespoke nature of large rail infrastructure tenders. The company was awarded the CIRR Innovation Prize 2021 (with EIFFAGE) for TramERS GB5® and pursues a sustainability and rapid-installation positioning, evidenced by its CO2 Performance Ladder certification and retrofit product line.

Name

Edilon Sedra

Legal name

edilon)(sedra Group B.V.

Website

https://edilonsedra.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

101–250 employees

Short description

Edilon Sedra is a Dutch specialist supplier of proprietary ballastless rail fastening systems (Corkelast® ERS, EBS, SDS, DFS, Trackelast®), serving global heavy rail, metro, tram, and crane rail customers across government transit authorities and industrial operators.

Ownership category

akta.pro rank

Product category

Rail Fastening Systems

NAICS

Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722)

SIC

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

akta.pro primary industry

Railway Track & Civil Works Construction (Ballast, Slab Track, Alignment) (IMAFAFAA)

akta.pro secondary industry

Lifting Attachments & Material Handling Accessories (Fork Attachments, Slings, Rigging) (IMAHABAJ)

Keywords

• Ballastless track systems
• Rail fastening systems
• Slab track construction
• Embedded rail technology
• Vibration damping mats

Headquarters

HQ city

Haarlem

HQ country

Netherlands

HQ region

Europe

Offices12 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Rail Fastening Systems & Equipment Sales: Sale of proprietary ballastless track fastening systems (Corkelast® ERS, EBS, SDS, DFS, Trackelast®) and associated components. Revenue is project-based, generated from infrastructure contracts for heavy rail, metro, tram/light rail, and industrial/crane rail applications globally.
2. Application Engineering & Technical Consulting Services: Value-added technical services including application engineering, BIM object provision, construction support, installation supervision, and training. Provided as part of the full-service project support offering.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Edilon Sedra designs, manufactures, and supplies proprietary ballastless (slab track) rail fastening systems built around its Corkelast® elastomer technology. The portfolio covers embedded rail, embedded block, sound damping, and direct fastening systems, plus Trackelast® elastic mats, level crossing systems, crane rail systems, and retrofit solutions for heavy rail, metro, tram/light rail, and industrial crane rail applications.

Product overview

Edilon Sedra is a specialist provider of ballastless track (slab track) fastening systems and solutions. The product portfolio is organized around five core rail fastening technologies: Corkelast ERS (Embedded Rail System) for continuous rail support, Corkelast EBS (Embedded Block System) for prefabricated block-based construction, Sound Damping System (SDS) for tram/light rail noise reduction, Direct Fastening System (DFS) for direct rail-to-baseplate fastening, and Trackelast for vibration damping mats and pads. Specialized variants include Corkelast LCS for level crossings, Corkelast CRS for crane rails, and EBS-RF for retrofit applications. The company also offers value-added services including Application & Engineering, Construction Support, BIM, and Training. These systems serve four primary market segments: Heavy Rail, Tram and Light Rail, Metro, and Industry and Crane Rail.

Differentiator

Problem solved

Functional benefit

Brands

• Corkelast® ERS: Embedded Rail System - high quality rail fastening system based on embedded rail technology for ballastless tracks
• Corkelast® EBS
• Corkelast® SDS
• Corkelast® DFS
• Trackelast®
• Corkelast® LCS
• Corkelast® CRS
• EBS-RF

Products and services

• Corkelast® ERS (Embedded Rail System) High-quality rail fastening system using embedded rail technology where the rail is elastically fixed in a concrete or steel channel using the bicomponent Corkelast elastomer. Provides continuous rail support, high electrical insulation, and effective stray current reduction for heavy rail, light rail and tram applications.
• Corkelast® EBS (Embedded Block System) Durable slab track construction system using prefabricated concrete blocks that are elastically and durably fixed in a specially designed concrete tray. Ideal for rapid and precise installation in metro tunnels and stations, providing maximum electrical insulation and waterproofing.
• Sound Damping System (SDS) Cost-effective system that electrically insulates, attenuates vibrations, and reduces airborne noise for tram and light rail applications. Integrates with various surface finishes including grass, asphalt, concrete, or pavers; uses eco-friendly, 100% recyclable filler block components.
• Direct Fastening System (DFS) Ballastless rail fastening system where the rail is fixed directly via a rail clip to a baseplate. Components can be adapted to different track geometries, offering high track adjustment capability (up to 12.5 mm inward/outward, +30 mm vertical), high stray current prevention, and adjustable stiffness.
• Trackelast® Range of high-quality elastic mats, sole plates, and rail pads specifically designed to absorb intense dynamic loads and track vibrations on ballastless tracks. Available for axle loads from trams and metros to high-speed and heavy rail (up to 250 kN).
• Corkelast® LCS-350 (Level Crossing System) State-of-the-art level crossing system based on prefabricated concrete slabs combined with Corkelast® ERS, providing continuous rail support, years of maintenance-free service, strong resistance to traffic impact forces, waterproofing, and high stray current protection.
• Corkelast® CRS (Crane Rail System) High-quality rail fastening system for crane rail applications in maritime ports, inland ports, freight terminals and industrial areas. Withstands extreme temperatures and high compressive, tensile and shearing forces; electrically insulating, waterproof, and resistant to oil, grease, acid, UV and oxidation.
• EBS-RF (Embedded Block System-RetroFit) Rapid-installation retrofit solution for replacing worn twin-block rubber boot rail fastening systems in metro tunnels. Consists of a concrete block with integrated elastic pad, prefabricated as a complete unit, enabling installation in only a few hours during night-time possessions.
• Application & Engineering Services Application engineering and technical consulting service supporting customers from early project design through installation, including BIM object provision and system selection advice for rail infrastructure projects.
• Construction Support Services Construction support including installation supervision and on-site engineering assistance for rail infrastructure projects using edilon)(sedra fastening systems.

Quantifiable outcome

• Rail-to-ground resistance values of 20 ohm·km (wet) and 60-80 ohm·km (dry) measured on Canberra Light Rail Corkelast® ERS installation
• +3 more outcomes

Named customers16 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• ProRailcoreStrategic or Co-development PartnerProRail is the Dutch railway infrastructure manager. edilon)(sedra collaborated with ProRail on a weekend possession project in Haarlem, renewing rails on two bridges and a level crossing in partnership with Strukton Rail and Technobeton BV during a single-weekend possession.
• Strukton RailminorStrategic or Co-development PartnerStrukton Rail partnered with edilon)(sedra on the Haarlem rail upgrade project on behalf of ProRail, executing the rail renewal with military-style precision during a single-weekend possession.
• Technobeton BVminorStrategic or Co-development PartnerTechnobeton BV partnered on the Haarlem rail upgrade project alongside edilon)(sedra and Strukton Rail on behalf of ProRail. Also listed as an affiliated entity with an office in Wessem, Netherlands.
• EIFFAGEcoreStrategic or Co-development PartnerEIFFAGE Infrastructures and edilon)(sedra co-developed and successfully installed the TramERS GB5® system in Montescourt, France — a new tram track solution awarded the CIRR 2021 French innovation prize.
• SENERcoreImplementation/ SI/ Consulting PartnerSENER, as lead engineers on the Toluca–Mexico City commuter rail megaproject, selected edilon)(sedra's DFS-FF ASB system. edilon)(sedra's expertise in integrating rail fastenings across multiple structures developed into a strong project partnership.
• PANEDILEminorImplementation/ SI/ Consulting PartnerPANEDILE served as engineering and construction partner for the Retiro Station track refurbishment in Buenos Aires, working closely with edilon)(sedra's DFS engineers to develop track design, supervise alignment and installation.
• GülermakcoreImplementation/ SI/ Consulting PartnerGülermak was the main contractor for Warsaw Metro Line 2. edilon)(sedra supported Gülermak by providing the EBS and Trackelast® track system solution for the project's western section, opened in 2022.
• ComsaminorImplementation/ SI/ Consulting PartnerComsa was the construction company partner alongside edilon)(sedra and FGV on the Valencia Metro RetroFit project, installing the EBS-RF system during night-time operations.
• James Walker GroupcoreOthersedilon)(sedra is a subsidiary of the James Walker Group, a global engineering products group. This parent-subsidiary relationship provides corporate backing and group-wide ethical and anti-corruption governance.
• FGV (Ferrocarrils de la Generalitat Valenciana)coreStrategic or Co-development PartnerFGV is the public railway company of the Valencia region in Spain. edilon)(sedra has multiple partnerships with FGV: the EBS-RF RetroFit installation at Metro Valencia (Plaça d'Espanya) and BIM object provision for the Valencia Line 10 metro project.
• University of GenevaminorStrategic or Co-development PartnerThe University of Geneva developed a BIM model for the En Chardon depot project in Geneva to avoid construction constraints. edilon)(sedra provided BIM objects to support the track realisation.
• InfrabelminorStrategic or Co-development PartnerBelgium's rail infrastructure manager. edilon)(sedra installed ERS on three bridges over the Albertkanaal for Infrabel, to decrease risk of rail breakage and enable continuous Harmelen crossings.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Rail.One GmbH: Rail.One manufactures slab track systems (RHEDA, ATD, GETRAC) directly comparable to Edilon Sedra's ballastless ERS and EBS platforms. It supplies heavy rail, high-speed rail and metro operators in Europe and internationally.
• Vossloh AG: Vossloh is a global leader in rail infrastructure, with a Fastening Systems division directly competing against Edilon Sedra's Corkelast® ERS/EBS/DFS in heavy rail, metro and tram markets. Both companies supply EN-certified rail fastening solutions to public transit authorities worldwide.
• Pandrol (Delachaux Group): Pandrol is a direct global competitor in rail fastening systems, including embedded rail and baseplate fastening technologies that overlap with Edilon Sedra's ERS and DFS offerings. It serves the same heavy rail, metro, and light rail customer base with similar project-based commercial models.
• Schwihag AG: Schwihag specializes in rail fastening systems for turnouts, crossings and crane rails — closely overlapping with Edilon Sedra's crane rail (CRS) and embedded rail systems. Both companies focus on European transit authorities and industrial crane rail installations.
• Getzner Werkstoffe GmbH: Getzner produces elastic mats and under-sleeper pads for ballasted and slab track systems that compete with Edilon Sedra's Trackelast® product family. Both address vibration, noise reduction and stray current isolation needs for transit authorities.
• Gmundner Fertigteile GmbH: Gmundner Fertigteile manufactures concrete track slabs and prefabricated block systems used in slab track construction, directly comparable to Edilon Sedra's EBS and ERS embedded block platforms for metro and tram applications.

Regional players

• Strukton Rail: Strukton is a Dutch rail construction and maintenance company that partners with Edilon Sedra on the ProRail Haarlem project but also competes in adjacent rail infrastructure works. Comparable as a regional player in Northwest Europe serving the same ProRail/Infrabel-style public customers.
• TINES Railway (TINES sp. z o.o.): TINES is a Polish rail fastening manufacturer serving Central European transit authorities. It overlaps with Edilon Sedra's product range in the Warsaw and broader CEE metro/rail markets where Edilon Sedra has established references.

Broad incumbents

• Progress Rail (a Caterpillar company): Progress Rail is a broad rail products and services incumbent spanning track, signalling, and rolling stock. Its track fastening and infrastructure offerings overlap with Edilon Sedra's product lines, particularly in North American heavy rail and transit markets.
• Balfour Beatty Rail: Balfour Beatty's rail division delivers large-scale rail infrastructure projects in the UK and internationally, often specifying rail fastening systems that overlap with Edilon Sedra's product range. Comparable as a broad incumbent serving national rail authorities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

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Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries11 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 Edilon Sedra