Sidenor Holdings
Sidenor Holdings is the largest Greek steel producer, operating three electric arc furnace mills in Greece and Bulgaria (2.4M tonnes annual capacity). It manufactures reinforcement steel, special bar quality steels, plates, and wire products under proprietary Synthesis™ and TEMPCORE technologies, serving construction, industrial, defense, shipbuilding, mining, and energy customers across 16+ countries.
- Company typePrivate
- Founded1960
- HeadquartersAthens, Greece
- Headcount1,001–5,000
- GTM typeB2B
- OfferingHardware or Manufacturing
Sidenor Holdings firmographics
Firmographics- Name
- Sidenor Holdings
- Legal name
- ΣΙΔΕΝΟΡ ΒΙΟΜΗΧΑΝΙΚΗ ΧΑΛΥΒΑ ΜΟΝΟΠΡΟΣΩΠΗ Α.Ε.
- Website
- https://sidenor.gr
- Company type
- Private
- Founded year
- 1960
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Sidenor Holdings is the largest Greek steel producer, operating three electric arc furnace mills in Greece and Bulgaria (2.4M tonnes annual capacity). It manufactures reinforcement steel, special bar quality steels, plates, and wire products under proprietary Synthesis™ and TEMPCORE technologies, serving construction, industrial, defense, shipbuilding, mining, and energy customers across 16+ countries.
- Ownership category
- akta.pro rank
Sidenor Holdings industry classification
Industry- Product category
- Steel Manufacturing
- NAICS
- Iron and Steel Mills and Ferroalloy Manufacturing (331110), Fabricated Structural Metal Manufacturing (332312)
- SIC
- Steel Works, Blast Furnaces & Rolling & Finishing Mills (3310), Steel Pipe & Tubes (3317)
- akta.pro primary industry
- Long Products Manufacturing (Rebar, Wire Rod, Merchant Bar, Sections/Beams) (IMAKABAH)
- akta.pro secondary industry
- Rebar Fabrication & Reinforcing Products (IMADACAH)
Keywords
Where Sidenor Holdings is headquartered
LocationHeadquarters
- HQ city
- Athens
- HQ country
- Greece
- HQ region
- Europe
Offices5 records
Markets served
Sidenor Holdings business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure
Revenue model
- Steel Products Manufacturing and Sales: Production and sale of steel products including reinforcement steel bars, merchant bars, wire products, welding consumables, and special steel grades. Revenue generated through direct B2B sales to construction, industrial, and manufacturing customers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | B2B direct sales - pricing based on volume, specifications, and contract terms |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
Sidenor Holdings product offering
Product offeringCore offering
Sidenor Holdings is the largest Greek steel producer, manufacturing and selling integrated concrete reinforcement steel systems (SD), reinforcement bars B500C, prefabricated reinforcement cages (SIDEFOR PLUS), merchant bars, hot-rolled plates, special steels (SBQ), wire rod, pipe products, wire products, welding consumables, and steel grinding balls. Operations span three production facilities in Greece and Bulgaria with a combined annual capacity of 2.4 million tonnes, using electric arc furnace technology fed by scrap steel.
Product overview
Sidenor Holdings is the largest Greek steel production group, operating an integrated steel manufacturing and trading business with facilities in Greece (Thessaloniki, Almyros Magnesia) and Bulgaria (Pernik). The product portfolio centers on the SD Integrated Reinforcement Steel System (concrete reinforcement bars B500C/B500B, SD meshes, Sidefit special meshes, Sidefor Plus ready cages, Inomix steel fibers, and welded lattice girders), supplemented by special steels (SBQ), merchant bars/structural steel, hot-rolled plates, wire rod, steel grinding balls, pipe products, wire products, welding consumables (ERLIKON), and specialty products like Ploughshare blades and rail connections. The Group operates through key subsidiaries: Praksys A.E. (technology development, Synthesis™ system), ELKEME (metallurgical research center), and has international reach via Stomana Industry (Bulgaria), Dojran Steel (North Macedonia), and the SmartReo joint venture in Australia.
Differentiator
Problem solved
Functional benefit
Brands
- SD (Σύστημα Οπλισμένου Σκυροδέματος): Reinforced concrete system brand including steel reinforcement bars, meshes, and cages for construction applications
- SIDEFOR PLUS
- SIDEFIT
- Inomix
- Synthesis™
- TEMPCORE
Products and services
- SD Integrated Reinforcement Steel System (Ολοκληρωμένο Σύστημα Οπλισμένου Σκυροδέματος SD)
- SD Reinforcement Steel Bars B500C
- Sidefor Plus Ready Cages (SIDEFOR PLUS)
- Special Steels (SBQ - Special Bar Quality)
- Merchant Bars / Structural Steel (Μορφοσίδηρος)
- Hot-Rolled Steel Plates (Λαμαρίνες Θερμής Έλασης)
- Wire Rod (Χονδρόσυρμα)
- Steel Grinding Balls (Χαλύβδινες Μπάλες Άλεσης)
- Pipe Products (Προϊόντα Σωληνουργίας)
- Wire Products (Προϊόντα Συρματουργίας)
- Welding Consumables (Προϊόντα Συγκόλλησης - ERLIKON)
- Ploughshare Blades (Λάμες Γεωργικών Χρήσεων)
- Rail Connections (Συνδέσεις Σιδηροτροχιών)
Companies that use Sidenor Holdings
Customer profileNamed customers6 records
Segments7 records
Ideal customer profiles5 records
Sidenor Holdings technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
Feature4 records
Sidenor Holdings partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core and major.
- TEKA SystemscoreImplementation of integrated Salesforce solution for sales departments of Sidenor Steel Industry, Stomana Industry and their subsidiaries (Sidenor Steel Group). Solution seamlessly integrates with SAP system, ensuring data synchronization, process rationalization, and actionable insights for better decision-making.
- Thiess (Australia)majorJoint venture SmartReo created in Australia between Sidenor and Thiess (largest construction company in Australia). JV provides comprehensive solutions in prefabricated reinforcement steel using Synthesis™ technology at facility in Brisbane, Queensland.
- DAIDO STEEL Co. Ltd.coreTechnical support agreement between Stomana Industry (100% subsidiary in Bulgaria) and Japanese DAIDO Steel. Includes technical support for development of Special Bar Quality (SBQ) products targeting automotive industry and consulting services for vacuum degasser equipment installation.
- Viohalco SAcoreParent company of Sidenor Group. Viohalco is a Belgian-registered holding company (trading on Athens and Euronext Brussels stock exchanges) consolidating steel and other metal production companies.
Scale indicators3 records
Recent moves8 records
Expansion highlights6 records
Sidenor Holdings competitors and assessment
Company assessmentDirect peers
- Voestalpine: Austrian-based producer of long products, special steels, and railway components. Closely comparable to Sidenor's portfolio in steel sections, special bar quality (SBQ) steels, and rail connection profiles (e.g., S49).
- Chalkourgia Ellados: Hellenic long steel products producer explicitly named alongside Sidenor in the Greek Competition Commission's long steel pricing investigation (Decision 617/2015). Competes with Sidenor in rebar, merchant bars and wire rod in the Greek domestic market.
- Chalkourgiki: Greek long steel products producer also cited in the Hellenic Competition Commission's long steel investigation alongside Sidenor. Direct domestic competitor in rebar and merchant bar supply to Greek construction and industrial customers.
- Celsa Group: European long products steelmaker focused on rebar, wire rod and structural sections using EAF technology. Direct fit as a regional long-products competitor with similar scrap-based production economics to Sidenor.
- Nucor: Largest US-based EAF steelmaker producing long products (rebar, merchant bars), sheet, plate and structural steel. Highly relevant as a benchmark for EAF-led, scrap-based long products manufacturing economics similar to Sidenor.
- Liberty Steel (GFG Alliance): European-headquartered EAF-based long and flat steel producer across the UK and continental Europe. Comparable technology model and overlapping exposure to EU long-products end markets.
- Salzgitter AG: German integrated and EAF steelmaker producing long products, plate, and sections. Comparable in European footprint and in plate/structural long-products manufacturing fit with Sidenor's hot-rolled plate and merchant bar portfolio.
- SSAB: Nordic specialty steel producer focused on high-strength sheet, plate and special bar quality (SBQ) products. Comparable in the higher-value special-steels segment of Sidenor's portfolio, particularly products serving automotive and heavy equipment.
Regional players
- Riva Group: Italian long products producer (rebar, wire rod, merchant bars) using EAF technology. Comparable product mix to Sidenor but focused primarily on the Italian and broader Mediterranean market.
Broad incumbents
- ArcelorMittal: World's largest steel producer with operations across long products, flat products, and mining. Highly relevant as an incumbent benchmark for product range and EU market dynamics, even though it is substantially larger and more diversified than Sidenor.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Sidenor Holdings social profiles
Digital presenceSidenor Holdings compliance and trust
Trust signalCompliance8 records
Sidenor Holdings financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sidenor Holdings leadership team
Management profileNumber of profiles
Profiles2 records
Sidenor Holdings subsidiaries and ownership
Company hierarchySubsidiaries9 records
Sidenor Holdings funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sidenor Holdings M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sidenor Holdings
What does Sidenor Holdings do?
Sidenor Holdings is the largest Greek steel producer, manufacturing and selling integrated concrete reinforcement steel systems (SD), reinforcement bars B500C, prefabricated reinforcement cages (SIDEFOR PLUS), merchant bars, hot-rolled plates, special steels (SBQ), wire rod, pipe products, wire products, welding consumables, and steel grinding balls. Operations span three production facilities in Greece and Bulgaria with a combined annual capacity of 2.4 million tonnes, using electric arc furnace technology fed by scrap steel.
Is Sidenor Holdings a public or private company?
Sidenor Holdings is a private company. It is classified as corporate owned and is currently operating.
When was Sidenor Holdings founded?
Sidenor Holdings was founded in 1960. It employs 1,001 to 5,000 people.
Where is Sidenor Holdings based?
Sidenor Holdings is headquartered in Athens, Greece, in the Europe region.
How does Sidenor Holdings make money?
One revenue line is on record: steel Products Manufacturing and Sales.
Who are Sidenor Holdings's main competitors?
Direct peers on record are Voestalpine, Chalkourgia Ellados, Chalkourgiki, Celsa Group, Nucor, Liberty Steel (GFG Alliance), Salzgitter AG and SSAB. Riva Group is listed as a regional player. ArcelorMittal is listed as a broad incumbent.
Does Sidenor Holdings have an API?
No public API is recorded for Sidenor Holdings.
What industry is Sidenor Holdings in?
Sidenor Holdings's product category is Steel Manufacturing. Its primary akta.pro industry code is IMAKABAH, Long Products Manufacturing (Rebar, Wire Rod, Merchant Bar, Sections/Beams), with a secondary code of IMADACAH, Rebar Fabrication & Reinforcing Products. Its NAICS code is 331110 and its SIC code is 3310.