Intersig NV

What Intersig NV does

Intersig NV is a Belgian manufacturer of structural reinforcement steel, headquartered in Dendermonde on a 60,000 m² facility built in 1995, and operating as a wholly owned subsidiary of the Van Merksteijn Steel Group since 2020. The company produces cold-drawn concrete reinforcement steel — coils, bars, lattice girders, standard mesh, and spacers (including the patented ZZ Snake Spacer and N-Spacer) — alongside Sigmafor prefabricated brickwork reinforcement and an in-house machine-building line for coil clamps and straightening dies. Production began in 1983 at 951 tonnes and grew to approximately 14,000 tonnes by 1992; the company now exports more than 65% of its output to France, Germany, and other European markets, with certified products for Belgium, Netherlands, France, Germany, Norway, and Sweden (BENOR, KOMO, NF, MPA NRW, Globecert, TÜV) and ISO 9001 (2018), ISO 14001 (2021), and a planned ISO 45001 (2024).

The business model is a sales-led, B2B direct-manufacturer model: Intersig sells unit-priced reinforcement products on per-shipment terms — standard bundles of approximately 1,000 kg, diameters 4–20 mm, lengths 0.10 m to 14.00 m, with surcharge supplements on bars and custom specifications — to three primary customer segments: precast concrete manufacturers, construction contractors, and civil engineering / infrastructure firms. Pricing is not publicly disclosed; sales are executed via a direct sales team led by a Chief Commercial Officer (Thomas Truyens) and a Head of Sales for German-speaking markets (Elger Luck), supported by a multi-language website and a Twitter channel. Distribution combines direct factory delivery in Belgium, export-led direct delivery across Europe (>65% of volume), and a complementary mesh supply channel operated by Van Merksteijn in the Netherlands; the Intersig France plant (Saint-Pourçain, operational from 2011) and the 2007 acquisition of Dibat-France add a localized French footprint.

Intersig operates as part of the broader Reinforcing Steel Europe (RSE) Group alongside Badische Stahlwerke, Moselstahlwerk, Baustahlgewebe, Neckardraht, BVG, Van Merksteijn Steel, Intersig France, and VMI Atlantic, allowing it to leverage group-level raw material purchasing, an electrical steel recycling plant in Germany, and consolidated certifications. Revenue figures are not publicly disclosed; the company's own website explicitly states this, and pricing is not listed online. Strategic differentiation rests on a deep certification portfolio (multi-country product certifications plus three ISO standards), patented spacer technology developed on in-house high-tech production lines, and integrated machine-building capability — positioning Intersig as a specialized mid-sized European player in a category where it claims top-tier global scale via its parent group.

Name

Intersig NV

Legal name

Intersig NV

Website

https://intersig.be

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

251–500 employees

Short description

Intersig NV is a Belgian manufacturer of cold-drawn concrete reinforcement steel — coils, bars, lattice girders, spacers, and Sigmafor brickwork reinforcement — supplying precast producers, construction contractors, and civil engineering firms across Belgium, Netherlands, France, Germany, Norway, and Sweden. It operates within the Van Merksteijn Steel Group / Reinforcing Steel Europe, exporting over 65% of production.

Ownership category

akta.pro rank

Headquarters

HQ city

Dendermonde

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Reinforcement Steel Products: Manufacturing and sale of construction steel products including coils, bars, lattice girders, and spacers. Intersig operates as both manufacturer and trader of concrete reinforcing steel, delivering all products in single shipments to customers. Products are sold directly to construction industry buyers including contractors, precast manufacturers, and builders.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Intersig manufactures and supplies concrete reinforcement steel products including cold-drawn coils, bars, lattice girders, spacers, Sigmafor masonry reinforcement, and standard mesh for the construction industry. The company produces and delivers certified reinforcement steel products from its Dendermonde, Belgium facility directly to construction contractors, precast concrete manufacturers, and infrastructure project builders across Europe.

Product overview

Intersig is part of the Van Merksteijn Group and is one of the largest manufacturers of construction steel in the world. The company operates a comprehensive product portfolio centered on concrete reinforcement steel products, specializing particularly in construction girders and spacers. The core product range includes Coils (cold-drawn concrete steel in coil form), Bars (cold-drawn bars in various lengths and diameters), Lattice Girders (three-dimensional truss girders including CKT, CWR, and CSE types), Spacers (including Type A triangular spacers, Type ZZ snake spacers, and Type N spacers), and Standard Mesh (reinforcement mesh supplied by Van Merksteijn). Additional offerings include Engine Building components (coil clamps and straightening dies) and Sigmafor masonry reinforcement products. The products serve the construction industry across Belgium, the Netherlands, France, Germany, Norway, Sweden, and worldwide markets.

Differentiator

Problem solved

Functional benefit

Products and services

• Coils Cold-drawn concrete steel wire supplied in coil form, available in multiple qualities (B500A ribbed, B500B indented, B500A smooth, B235C smooth/soft). Used for construction reinforcement applications where continuous wire is needed.
• Bars Cold-drawn concrete steel bars available in various qualities, with lengths from 0.10m to 14.00m and diameters from ø4 to ø20mm. Used for construction reinforcement in foundations, walls, and structural elements.
• Lattice Girders Three-dimensional truss girders made of concrete reinforcing steel for construction applications. Includes CKT types for prefab slabs and double walls, CWR types for armed roads, and CSE types for the Swedish market. Parameters from 50mm-400mm height, lengths 2m-14m.
• Spacers Specialized spacers ensuring correct concrete cover in concrete constructions. Includes Type A triangular spacers (Heavy Duty and Regular), Type ZZ snake spacers (Heavy Duty and Regular), and Type N spacers in N-form. Patented designs offering better safety and site stability.
• Standard Mesh Reinforcement mesh produced and supplied by Van Merksteijn in the Netherlands. Includes standard mesh ranges for Belgium, the Netherlands, and France, as well as joint mesh. Intersig maintains a small stock of joint mesh.
• Sigmafor Brickwork Reinforcement Prefabricated masonry reinforcement produced with hot-dipped galvanized wire (60gr/m² zinc). Available in Round, Flat, Round Epoxy, Flat Epoxy, Round Heavy Duty, and Angle forms. Prevents cracking and improves wall construction resistance.
• Engine Building (Machinebouw) Industrial machinery components including coil clamps (R/5000 for cold drawn coils, RS/5000 for hot rolled coils, RS/5000/900 for large diameter coils with 900mm inner diameter) for lifting and moving coils, and straightening dies for wire diameters 4-16mm for wire straightening and torsion prevention.

Quantifiable outcome

• Reduced on-site labor through longer lengths and KOMO-certified A-spacers
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Intersig France (Saint-Pourçain)coreStrategic or Co-development Partner · 1 January 2011Construction of Intersig France plant in Saint-Pourçain began in 2011 as a stand-alone production unit for mesh and coils specifically serving the French market. This facility complements the Dibat-France acquisition and provides dedicated French market production capacity.
• Van MerksteijncoreStrategic or Co-development Partner · 1 January 2004In 2004, Van Merksteijn acquired 50% of Intersig shares, with the other 50% remaining with Roeland Van Maercke. This partnership created immediate economies of scale in raw material purchasing and enabled optimization of both production facilities. Mesh production was allocated to Almelo (Netherlands) while lattice girder and spacer production remained in Dendermonde (Belgium). In 2020, Peter van Merksteijn acquired 100% ownership of Intersig.
• VLAIO (Vlaams Agentschap Innoveren en Ondernemen)minorStrategic or Co-development PartnerIntersig collaborates with VLAIO (Flemish Agency for Innovation and Entrepreneurship) for innovation projects and development initiatives. This partnership supports Intersig's continuous investment in new products and processes, contributing to the company's professionalization and patent portfolio development.
• Dibat-FranceminorStrategic or Co-development PartnerAcquired in 2007, Dibat-France is a company from Metz specialized in the production of small concrete bars for the French market. This acquisition strengthened Intersig's presence and product offerings in the French construction market prior to establishing Intersig France.
• Reinforcing Steel Europe (RSE) GroupcoreStrategic or Co-development PartnerIntersig is part of the Reinforcing Steel Europe Group, which includes Badische Stahlwerke (BSW), Moselstahlwerk (MSW), Baustahlgewebe, Neckardraht, BVG in Germany, Van Merksteijn Steel in Netherlands, Intersig Belgium, Intersig France, and VMI Atlantic in France. RSE operates one of the most modern electrical steel plants in Germany, recycling scrap into new steel using electricity.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Voestalpine: Austrian-based global steel and technology group producing special steel products including construction reinforcement. Overlaps with Intersig in European construction markets, though Voestalpine's portfolio spans far beyond reinforcement.
• Commercial Metals Company (CMC): US-based steel manufacturer and rebar fabricator with growing European presence. Operates in the same construction reinforcement value chain though focused primarily on North American markets.
• Nucor Corporation: Largest American steel producer with significant rebar and concrete reinforcement products. Nucor's broad steel portfolio overlaps with Intersig's downstream product categories across multiple geographies.
• Liberty Steel Group: European-focused steel manufacturer with significant rebar and long products capacity. Overlaps with Intersig in European reinforcement steel markets, including Benelux and France through various production sites.
• Riva Group: Italian-headquartered European steel manufacturer producing rebar, wire rod, and mesh for construction markets. Directly competes with Intersig in France, Italy, and other European markets where Intersig exports.
• Tata Steel Europe: Major European steel producer with construction product lines including rebar and mesh. Competes broadly with Intersig in Western European construction steel supply.
• ArcelorMittal: World's largest steelmaker offering a broad portfolio including rebar and long products for construction across Europe. Competes with Intersig on commoditized reinforcement steel while operating across many other steel segments.

Direct peers

• Bekaert: Global leader in steel wire transformation and reinforcement products. Bekaert directly competes with Intersig in concrete reinforcement wire, mesh, and prefabricated reinforcement, and historically licensed Intersig for flat Sigmafor production technology.
• Van Merksteijn International: Parent company of Intersig and fellow RSE Group member. Van Merksteijn produces reinforcement steel, mesh, and wire products in the Netherlands, sharing product overlap and serving similar European construction customers under the same group umbrella.
• Badische Stahlwerke (BSW): German reinforcement steel producer and RSE Group member alongside Intersig. BSW produces rebar and reinforcing steel for construction, operating in the same German market with overlapping certifications and customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/@VMIsteel
• LinkedInlinkedin.com/company/van-merksteijn-steel-group

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

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 Intersig NV