Stomana Industry

What Stomana Industry does

Stomana Industry SA is a Bulgarian integrated steel manufacturer headquartered at 1 Vladaisko Vastanie str., Pernik, Bulgaria, operating as a subsidiary of Greek industrial conglomerate Sidenor Group. Founded in 1953, the company has over 70 years of operating history and is described as one of the largest recyclers in Southeast Europe. Its production stack comprises Electric Arc Furnaces (EAF), Rolling Mills, and Continuous Casting with Vacuum Degassing, with over 98% of raw materials sourced from secondary steel recycling. Stomana is among a small number of European mills producing 100% of its hot-rolled plates exclusively from recycled ferrous scrap, and as a top-5 electricity consumer in Bulgaria, energy is a material cost factor in its operations.

The company's product portfolio is horizontally diversified across six core lines: hot-rolled plates (EPD-verified for construction, shipbuilding, energy, and transportation), Special Bar Quality Steels (SBQ) in hot-rolled and bright round bars, the SD Integrated Concrete Reinforcing Steel System, steel balls for mining ore grinding (60-125mm diameters), continuous casting vacuum-degassed semi-products (slabs, billets, blooms), and welded hollow sections / thin-wall tubes. Products meet ISO, BS, EN, DIN, ASTM, AWS, LRS, ABS, BV, and DNV standards, supported by ISO 9001, 14001, 45001, and 50001 certifications along with the SustSteel mark valid to 2030. The customer base spans construction, shipbuilding, energy and power, mining, mechanical engineering, and general industrial applications.

Stomana operates a B2B sales-led model with direct sales to industrial customers via domestic and export channels ([email protected]). Pricing is quote-based and not publicly disclosed, with the company offering customized product solutions, stock delivery, flexible minimum order quantities, and transportation alternatives. Revenue is generated through hardware sales of steel products, with multi-year contracts as the billing cadence. The company is privately held, does not publish revenue figures, and has ~123 directly attributed employees. Beyond core operations, Stomana is an active participant in the LEONARDO EU project (LIFE24-CET-LEONARDO, announced 2025-09-01), serving as the key industrial demonstrator for the Bulgaria-Greece pilot site on industrial demand-side flexibility.

Name

Stomana Industry

Legal name

STOMANA INDUSTRY SA

Website

https://stomana.bg

Company type

Private

Founded year

1950

Operating status

Operating

Headcount range

101–250 employees

Short description

Stomana Industry is a Bulgarian subsidiary of Sidenor Group and one of the largest recyclers in Southeast Europe, producing hot-rolled plates, SBQ, reinforcing steel, steel balls, and hollow sections from over 98% recycled ferrous scrap for construction, mining, shipbuilding, and industrial customers.

Ownership category

akta.pro rank

Product category

Steel Manufacturing

NAICS

Iron and Steel Mills and Ferroalloy Manufacturing (3311)

SIC

Steel Works, Blast Furnaces & Rolling & Finishing Mills (3310)

akta.pro primary industry

Steel Casting (Continuous Casting, Ingots, Semi-Finished Slabs/Billets/Blooms) (IMAKABAD)

akta.pro secondary industries

Long Products Manufacturing (Rebar, Wire Rod, Merchant Bar, Sections/Beams) (IMAKABAH), Specialty & Alloy Steel (Stainless, Tool Steel, Electrical Steel, High-Strength/HSLA) (IMAKABAJ)

Keywords

• Hot-rolled steel plates
• Recycled steel products
• Concrete reinforcing steel
• Special bar quality steels
• Steel grinding balls

Headquarters

HQ city

Pernik

HQ country

Bulgaria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Steel Products Manufacturing and Sales: Primary revenue from manufacturing and selling a wide range of premium steel products including hot-rolled plates, special bar quality steels (SBQ), concrete reinforcing steel, steel balls, continuous casting semi-products, and welded hollow sections. Revenue is generated through direct B2B sales to industrial customers with both customized solutions and stock options.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Stomana Industry manufactures and sells a wide range of premium steel products through integrated production lines based on Electric Arc Furnaces and Continuous Casting with Vacuum Degassing, sourcing over 98% of raw materials from recycled ferrous scrap. The product portfolio includes hot-rolled plates, special bar quality steels (SBQ), SD integrated concrete reinforcing steel, steel balls for mining, continuous casting semi-products, and welded hollow sections & thin wall tubes, sold B2B to construction, shipbuilding, energy, mining, and mechanical engineering customers with customized solutions or stock delivery.

Product overview

Stomana Industry is a steel manufacturer with over 70 years of history, producing a wide range of premium steel products through integrated production lines. The company operates as one of the largest recyclers in Southeast Europe, relying on secondary steel recycling for over 98% of its raw materials. Its product portfolio includes Hot-Rolled Plates (EPD-verified low-carbon quarto plates for construction, machinery, energy, shipbuilding, and transportation), Special Bar Quality Steels (SBQ) comprising hot rolled and bright round bars for industrial applications, Steel Balls for mining ore grinding, SD Integrated Concrete Reinforcing Steel System for reinforced concrete constructions, Continuous Casting Vacuum Degassed Semi-Products (slabs, billets, blooms for various sectors), and Welded Hollow Sections & Thin Wall Tubes for engineering and construction applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Hot-Rolled Plates Low-carbon quarto plates with EPD verification for construction, machinery, energy and power, shipbuilding, transportation, yellow goods, and pressure vessel applications. Available in a variety of sizes and specifications with customized product solutions or stock delivery options. Produced exclusively from recycled ferrous scrap.
• Special Bar Quality Steels (SBQ)
• SD Integrated Concrete Reinforcing Steel System
• Steel Balls
• Continuous Casting Vacuum Degassed Semi-Products
• Welded Hollow Sections & Thin Wall Tubes

Quantifiable outcome

• Over 98% of raw materials sourced from secondary steel recycling
• +1 more outcomes

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Twelve partnerships are on record, tiered core, secondary and supporting.

• Fondazione Bruno KesslercoreStrategic or Co-development Partner · 1 September 2025Project Coordinator for the LEONARDO project (LIFE24-CET-LEONARDO) focused on flexibility services provision enabled from aggregated industrial prosumers. Located in Italy, they lead a consortium of 11 partners working on industrial demand-side flexibility solutions.
• Fundacion CARTIFsecondaryStrategic or Co-development Partner · 1 September 2025Research center and academic partner in the LEONARDO project consortium. Based in Spain, they contribute to the Industrial Flexibility Knowledge Hub (IFKH) development.
• University of Patras (Panepistimio Patron EL)secondaryStrategic or Co-development Partner · 1 September 2025Academic partner in the LEONARDO project consortium. Based in Greece, contributing research expertise to industrial flexibility solutions.
• Europäisches Zentrum für Erneuerbare Energie Güssing GmbHsecondaryStrategic or Co-development Partner · 1 September 2025Industrial and technology partner in the LEONARDO project. Based in Austria, specializing in renewable energy solutions and energy management systems.
• Centre for New Energy Technologies SAsecondaryStrategic or Co-development Partner · 1 September 2025Industrial and technology partner in the LEONARDO project. Based in Portugal, contributing to energy technology and flexibility solutions.
• Consorzio Elettrico di Storo, Società CooperativasecondaryStrategic or Co-development Partner · 1 September 2025Industrial and technology partner in the LEONARDO project. Based in Italy, contributing to energy management systems and flexibility aggregation.
• RINA Consulting SPAsecondaryStrategic or Co-development Partner · 1 September 2025Industrial and technology partner in the LEONARDO project. Based in Italy, providing consulting expertise in energy and industrial solutions.
• Helleniq Energy (Ellinika Petrelaia Monoprosopi Anonymi Etaireia)secondaryStrategic or Co-development Partner · 1 September 2025Industrial and technology partner in the LEONARDO project. Based in Greece, contributing energy sector expertise to the consortium.
• EVON GmbHsecondaryStrategic or Co-development Partner · 1 September 2025Industrial and technology partner in the LEONARDO project. Based in Austria, providing automation and energy management expertise.
• SINLOC-Sistema Iniziative Locali SPAsecondaryStrategic or Co-development Partner · 1 September 2025Industrial and technology partner in the LEONARDO project. Based in Italy, contributing local initiative and energy expertise.
• Sidenor GroupcoreOthers · 1 September 2025Parent company/group of Stomana Industry. Sidenor Group is a Greek steel manufacturing group. Career opportunities are managed through Sidenor Group's careers portal.
• EthicsPointsupportingOthers · 1 September 2025Independent whistleblowing hotline system partnered with Stomana Industry to provide anonymous reporting of ethical concerns, misconduct, or illegal behavior.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• ArcelorMittal: World's largest steelmaker, with European EAF operations competing in plates, long products, and SBQ. Overlaps with Stomana in product categories but at vastly greater scale and portfolio breadth.
• Salzgitter AG: German integrated steel group operating EAF and other routes, with broad plate and section portfolios. Comparable in product categories, especially plates and hollow sections.
• SSAB: Nordic steelmaker with EAF-based scrap-fed operations producing specialty plates and heavy sections. Comparable in low-carbon scrap-based plate positioning and target customer industries.
• NLMK: Major Russian-headquartered flat steel producer with European operations in plates and slabs, competing in similar construction and shipbuilding end-markets.
• Voestalpine: Austrian specialty steel producer with EAF operations focused on high-quality plates and sections for engineering, energy, and rail customers. Comparable in high-spec plate and SBQ grades.

Direct peers

• Celsa Group: One of Europe's largest EAF-based scrap-fed steel producers, focused on long products (rebar, sections) and wire rod. Highly comparable business model and feedstock logic to Stomana.
• Liberty Steel: European EAF-based scrap-fed steel group with operations across the continent producing long products and plate. Comparable integrated scrap-EAF model and geographic footprint.
• Acroni (SIJ Group): Slovenian EAF-based stainless and specialty steel producer, geographically close and operating a similar scrap-fed EAF + continuous casting platform.
• Sidenor Group: Parent company and Greek steel producer with a similar EAF-based, scrap-fed integrated model producing long products and billets. Directly comparable in technology stack and product categories; Sidenor provides group-level context for Stomana's positioning.
• Ovako: Specialty steel producer using EAF/scrap route to serve engineering, automotive, and bearing customers with SBQ-type bars. Closely comparable in SBQ product mix and customer overlap.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/stomanaindustry

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

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 Stomana Industry