7 Steel UK

What 7 Steel UK does

7 Steel UK is a vertically integrated producer of low-carbon, circular steel and reinforcement products serving the UK construction, transport infrastructure, and energy sectors. The Cardiff-headquartered company operates three divisions: 7 Steel Manufacturing (Electric Arc Furnace steelmaking at the Cardiff Castle Works and Tremorfa facilities with 1.2 million tonnes annual capacity), 7 Steel Service (cut-and-bent rebar, prefabricated reinforcement units, and engineered technical solutions delivered through a network of 17 UK fabricator depots), and 7 Steel Recycling (scrap processing across four UK yards with up to 1.5 million tonnes annual throughput). Following its April 2025 acquisition by Czech-based Sev.en Global Investments, the previously named Celsa Steel UK was rebranded as 7 Steel UK and combined with Nordic operations to form a unified 7 Steel group employing 2,700 people in the UK.

The company's core technology stack is Electric Arc Furnace steelmaking fed by 100% UK-sourced ferrous scrap — a closed-loop model that delivers an emissions intensity as low as 374 kgCO2 per tonne of reinforcing bar and wire rod, approximately 80% below blast furnace benchmarks. A state-of-the-art scrap shredder was commissioned at the Cardiff site in July 2024 to broaden the input mix and improve feedstock consistency. The product range covers standard rebar from 6mm to 32mm sections, plus engineered solutions under the Startabox (prefabricated column cages), Couplerbox (mechanical reinforcement connections), and Sheartech technical ranges. The company maintains BES6001, Eco-Reinforcement, ISO 9001/14001/45001, UKCA, and CE certifications and supplies to British Standards BS4449 and BS8666.

Revenue is generated through direct enterprise sales of mill products and fabricated reinforcement on multi-year project contracts, supplemented by scrap metal recycling transactions. Notable supplied projects include HS2, Hinkley Point, Wembley Stadium, the London Olympic Park, The Shard, and the Béziers Viaduct in France. Pricing is quote-driven under British Standards rather than subscription-based. In May 2026, the parent company invested £100 million into the business for plant upgrades and technology improvements, reinforcing its position within the Sev.en Global Investments portfolio.

Name

7 Steel UK

Legal name

Sev.en Steel UK Ltd

Website

https://7-steeluk.com

Company type

Private

Founded year

2025

Operating status

Operating

Short description

7 Steel UK is a UK-headquartered producer of low-carbon, circular steel and reinforcement products from 100% UK-sourced scrap using Electric Arc Furnace technology, serving construction, transport infrastructure, and energy sectors through manufacturing, service, and recycling divisions.

Ownership category

akta.pro rank

Product category

Steel Manufacturing

NAICS

Iron and Steel Mills and Ferroalloy Manufacturing (331110)

SIC

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

akta.pro primary industry

Electric Arc Furnace (EAF) Steelmaking (Incl. DRI/HBI-Based) (IMAKABAB)

akta.pro secondary industries

Industrial & Manufacturing Scrap Recycling (Factory Scrap, Turnings, Offcuts) (IMAKAMAE), Construction & Demolition (C&D) Metal Recycling (Structural Steel, Rebar, Roofing, Wire) (IMAKAMAF), Steel Casting (Continuous Casting, Ingots, Semi-Finished Slabs/Billets/Blooms) (IMAKABAD)

Keywords

• Low-carbon steel manufacturing
• Circular steel production
• Scrap metal recycling
• Reinforcement steel products
• EAF steelmaking

Headquarters

HQ city

Cardiff

HQ country

United Kingdom

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Steel Products Manufacturing and Sales: Production and sale of high-quality steel products including reinforcing bars (rebar), high-yield coils, wire rods, merchant bars, and light sections. Annual production capacity of 1.2 million tonnes of crude steel.
2. Cut and Bend Fabrication Services: 7 Steel Service division provides precision-engineered rebar cut and bent to specification, reinforcing fabric and mesh, prefabricated units, and technical services including Startabox, Couplerbox, and Sheartech systems.
3. Scrap Metal Recycling: Collection, processing, and sale of scrap metal to feed the EAF steelmaking operations. Up to 1.5 million tonnes of scrap steel recycled annually, with 25-30% sourced via vertically-integrated recycling division.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

7 Steel UK manufactures low-carbon circular steel and reinforcement products using Electric Arc Furnace (EAF) technology fed by 100% UK-sourced scrap steel. The company operates three integrated divisions: 7 Steel Manufacturing (rod, bar, coil, wire rod production at 1.2 million tonnes annual capacity), 7 Steel Service (cut-and-bent rebar, reinforcing fabric, prefabricated units, construction accessories, technical solutions), and 7 Steel Recycling (scrap collection and processing across four UK yards, up to 1.5 million tonnes annually). Emissions intensity is as low as 374 kgCO2 per tonne for reinforcing bar and wire rod products.

Product overview

7 Steel UK is a steel manufacturer and service provider offering a vertically integrated, closed-loop circular steel model. The portfolio consists of three main divisions: 7 Steel Manufacturing (producing low-carbon circular steel via Electric Arc Furnace with 1.2 million tonne annual capacity), 7 Steel Service (cut-and-bend rebar, reinforcing fabric, prefabricated units, accessories, and technical solutions), and 7 Steel Recycling (scrap metal collection and processing across four UK sites). Products include reinforcing bars, high-yield coils, wire rods, and merchant bars, all manufactured from 100% UK-sourced scrap with emissions intensity as low as 374 kgCO₂ per tonne.

Differentiator

Problem solved

Functional benefit

Products and services

• Low-Carbon Circular Steel Steel produced using Electric Arc Furnace (EAF) technology with 100% UK-sourced scrap, achieving over 80% lower CO2 emissions than traditional blast furnace methods. Annual capacity of 1.2 million tonnes. Sold to construction, transport and energy sector buyers.
• Cut & Bend Rebar Steel reinforcement bars cut and bent to BS8666 specifications, produced from BS4449 grade B500C rebar in sizes 10-40mm (8mm and 50mm on request). Sold to construction companies.
• Reinforcing Fabric & Mesh Wide range of reinforcing fabric and mesh including carpet reinforcement solutions for rapid installation and improved site efficiency. All products meet relevant British Standards and manufactured from UK-sourced, recycled steel. Sold to construction companies.
• Prefabricated Reinforcement Units Prefabricated steel reinforcement units produced and assembled off-site to streamline construction and reduce on-site labour. Modular systems tailored to project specifications. Sold to construction and infrastructure clients.
• Construction Accessories Specialist construction accessories for installation, connection, and structural support, designed to meet technical requirements and improve on-site productivity. Sold alongside reinforcement products.
• Technical Services Advanced technical solutions including Startabox, Couplerbox, Sheartech systems, and piling accessories engineered to support complex construction and infrastructure projects.
• Scrap Metal Recycling Scrap metal recycling operations across four strategically located yards (Cardiff, Avonmouth, Rotherham, Sunderland) processing up to 1.5 million tonnes annually, including advanced scrap shredding technology. 25-30% of feed sourced via vertically-integrated recycling division.

Quantifiable outcome

• 80% lower CO2 emissions with EAF vs blast furnace
• +3 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators9 records

Recent moves4 records

Expansion highlights6 records

Emerging players

• SSAB: Nordic steel producer transitioning to fossil-free steel using EAF and HYBRIT technology. Competes in advanced low-carbon steel markets relevant to UK and European infrastructure customers prioritising green procurement.
• Nucor: North America's largest EAF-based steel producer focused on scrap-fed long and sheet products. A benchmark for EAF economics, circular production, and low-carbon steel branding that competes globally for low-carbon procurement contracts.

Direct peers

• Commercial Metals Company (CMC): Vertically integrated EAF steelmaker and scrap recycler operating in the US and Europe (including former UK assets). Comparable closed-loop scrap-to-rebar model with similar rebar, merchant bar, and fabricated rebar product lines.
• British Steel: UK-based steel producer supplying long products including sections and rail into construction and infrastructure. Directly competes with 7 Steel UK in the UK domestic long-products market and shares exposure to UK construction and rail demand.
• Celsa Group: Spanish-headquartered EAF long-products producer operating circular steel mills across Europe. Closest direct comparable to 7 Steel UK's EAF scrap-based model and product mix, and was the previous owner of the UK operations.

Others

• EMR Group: One of the UK's largest metal recyclers, supplying ferrous scrap into domestic and export markets. Relevant comparable for 7 Steel Recycling's scrap collection and processing operations and as a competitor for UK scrap feedstock.

Broad incumbents

• Gerdau: Brazil-headquartered long-products steelmaker with global EAF mills producing rebar, wire rod, and structural shapes. Comparable product mix and EAF technology base for construction and infrastructure end-markets.
• Tata Steel UK: Major UK-based integrated steelmaker producing a broad portfolio of flat and long products from Port Talbot and other sites. Overlaps with 7 Steel UK on long products and UK infrastructure supply, but operates a different blast-furnace technology base.
• ArcelorMittal Europe: World's largest steel producer with significant European operations supplying long and flat products into construction, automotive, and infrastructure. Competes with 7 Steel UK for UK and EU rebar, wire rod, and merchant bar demand.
• Voestalpine: Austrian-headquartered steel and technology group producing high-grade long products including rail and sections. Overlaps with 7 Steel UK in rail infrastructure and high-spec construction steel supply across European markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/18470642

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 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 7 Steel UK