What SÜLZLE Stahlpartner GmbH does

SÜLZLE Stahlpartner GmbH is a privately held, family-owned German B2B steel service company headquartered in Rosenfeld, Baden-Württemberg, and tracing its origins to an 1880 blacksmith workshop founded by Wilhelm Sülzle. Now in its fourth generation of family ownership under Managing Directors Heinrich Sülzle and Andreas Sülzle, the company operates 20 branch locations across Germany offering reinforcing steel trading, custom bending and fabrication, on-site services and construction accessories. Its core product portfolio spans concrete reinforcing steel (Betonstahlbewehrung), reinforcement mats (Baustahlmatten in stock and custom variants), prefabricated reinforcement cages (Bewehrungskörbe, Armierungskörbe), mechanical screw connections (Ancon, GripTec, LENTON, Peikko/MODIX), stainless and GFRP reinforcement alternatives, and complementary accessories. Distinctive capabilities include certified mobile welding on construction sites (DIN EN ISO 17660-1, EN 1090 EXC 2), delivery and crane services, laying/installation, and on-site fabrication, supported by digital workflows such as electronic delivery notes and ZUGFeRD-compliant invoicing.

The company's commercial model is a project-based, quote-driven sale of processed steel and on-site services to general contractors, specialty contractors and industrial end-customers across industrial construction, residential construction, infrastructure (including Stuttgart 21 and the Arlinger Tunnel), wind-energy foundations and special structures. Pricing is not publicly disclosed and varies by steel grade, processing complexity, volume and delivery logistics. Distribution is direct field sales through the 20-branch network, complemented by an SMB-focused e-commerce channel (SÜLZLE Stahlshop). Strategic positioning is reinforced by long-standing relationships with major German contractors such as Ed. Züblin AG, the 2026 launch of the STOOX CO2-optimised reinforcing-steel line (with PCF-Steel, PCF-Limited and PCF-Premium tiers) targeting sustainability-certified construction projects, and a corporate social responsibility profile that includes Deloitte Best Managed Company recognition in 2022 and 2023. Recent operational milestones include the integration of Eisen Grader Weiden as a new branch (July 2026) and ongoing multi-thousand-tonne contracts with public and private sector customers through 2026.

Name

SÜLZLE Stahlpartner GmbH

Legal name

Sülzle Stahlpartner GmbH

Website

https://www.suelzle-stahlpartner.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

SÜLZLE Stahlpartner GmbH is a fourth-generation, family-owned German steel service company operating 20 branches that supplies reinforcing steel, custom bending, on-site welding and construction accessories to industrial, residential, infrastructure and wind-energy builders.

Ownership category

akta.pro rank

Product category

Reinforcing Steel and Construction Steel Products

NAICS

Ornamental and Architectural Metal Products Manufacturing (33232)

SIC

Fabricated Structural Metal Products (3440)

akta.pro primary industry

Rebar Fabrication & Reinforcing Products (IMADACAH)

akta.pro secondary industry

Steel Joists, Joist Girders & Decking (IMADACAC)

Keywords

• Reinforcing steel supply
• Steel fabrication services
• Construction steel materials
• Rebar bending services
• Construction materials distribution

Headquarters

HQ city

Rosenfeld

HQ country

Germany

HQ region

Europe

Offices20 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Steel Trading (Streckengeschäft): Sale of steel products in large quantities from stock, including concrete reinforcement steel, reinforcement mats, wire products, support baskets, and lattice girders. Operated through the company's trading/distribution network.
2. Bending Operations (Biegebetrieb): Custom steel bending and fabrication services at 20 locations. Products include reinforcement cages, reinforcement mats, reinforcement steel, screw connections, stainless reinforcement, GFK reinforcement, and reinforcement accessories. Value-added processing.
3. Service (Construction Services): On-site services including delivery and crane service, laying/placement service, construction site support, on-site construction, lifting straps, and high-quality welding on construction sites.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

SÜLZLE Stahlpartner supplies reinforcing steel and related construction materials (concrete reinforcement steel, reinforcement mats, cages, screw connections, stainless and GFRP reinforcement, accessories) and operates in-house bending workshops (Biegebetrieb) at 20 German locations for custom fabrication. The company also provides steel trading (Streckengeschäft), on-site delivery with crane service, laying/placement, mobile welding, and digital construction services (electronic delivery notes, ZUGFeRD invoicing). Its STOOX sub-brand offers CO₂-optimised reinforcing steel with transparent carbon-footprint data.

Product overview

SÜLZLE Stahlpartner GmbH operates a B2B steel service and trading business with bending operations (Biegebetrieb) at 20 locations across Germany. The core product portfolio centers on concrete reinforcement steel (Bewehrungsstahl) including various forms such as Betonstahlbewehrung, Baustahlmatten (construction steel mats in multiple variants), Bewehrungskörbe (reinforcement cages), and screw connection systems. The company differentiates with STOOX, a CO₂-optimized reinforcing steel product line launched in 2026 that provides transparent CO₂ emissions data for climate-conscious construction. Beyond products, SÜLZLE offers comprehensive services including delivery/crane services, laying services, on-site construction, digitalization solutions (electronic delivery notes, electronic reinforcement data, ZUGFeRD invoices), and certified mobile welding services. Founded in 1880, the company serves industrial, residential, and infrastructure construction projects.

Differentiator

Problem solved

Functional benefit

Brands

• STOOX by SÜLZLE: CO₂-optimized reinforcing steel product line offering PCF-Steel, PCF-Limited, and PCF-Premium variants with transparent CO₂ emissions data and traceability.

Products and services

• STOOX CO₂-Optimised Reinforcing Steel CO₂-optimised reinforcing steel product line offering transparent CO₂ emissions data, verifiability of deliveries, and extended system boundaries up to construction-site delivery; enables reliable CO₂ accounting for climate-conscious construction projects. Available in PCF-Steel, PCF-Limited, and PCF-Premium variants.
• Betonstahlbewehrung (Concrete Steel Reinforcement) Reinforcing steel products for concrete structures, supplied as bars, coils, and in steel grades B500A and B500B. Sold through SÜLZLE's branch network and Streckengeschäft (steel trading) operations.
• Baustahlmatten (Construction Steel Mats) Reinforcement mats in multiple variants including Lagermatten, Listenmatten, Vorratsmatten, Sonderdyn-Matten, HS-Matten, N-Matten, and Fahrbahnmatten (road mats).
• Bewehrungskörbe (Reinforcement Cages) Prefabricated reinforcement cages including SAK (SÜLZLE Armierungskörbe), individual special reinforcement cages, and cages for bored piles and slotted wall reinforcement.
• Armierungskörbe (Reinforced Steel Cages) Prefabricated reinforcement basket products including SAK-Plus and welded reinforced steel cages for edge beams and ring anchors.
• Schraubverbindungen (Screw Connections) Mechanical screw coupling systems for reinforcing steel including Ancon, GripTec, LENTON, and Peikko/MODIX systems.
• Edelstahlbewehrung (Stainless Steel Reinforcement) Stainless steel reinforcement products including coils, bars, mats, and binding wire, along with GripTec screw coupling systems for stainless applications.
• GFK-Bewehrung (GFRP Reinforcement) Glass Fiber Reinforced Polymer reinforcement products supplied as an alternative to traditional steel reinforcement.
• Bewehrungszubehör (Reinforcement Accessories) Accessories for reinforcement work including wire spacers, plastic spacers, fibre-reinforced concrete spacers, and other accessories.
• Verschweißter Betonstahl (Welded Concrete Steel) Custom-made reinforcement mats manufactured by hand using welding techniques according to customer plans, using B500B steel grade (material 1.0439) per DIN 488-1:2009-08.
• Liefer- und Kranservice (Delivery and Crane Service) Delivery of steel products directly to construction sites with crane service for placing materials on site.
• Verlegeservice (Laying Service) Professional installation and laying of reinforcement products on customer construction sites.
• Baustellenbetreuung (Construction Site Support) On-site support and supervision services during construction projects.
• Baustellenfertigung (On-site Construction / Fabrication) Mobile manufacturing and fabrication services performed directly at customer construction sites.
• Digitalisierung im Bau (Digitalization in Construction) Digital services including electronic delivery notes (Elektronische Lieferscheine), electronic reinforcement data (Elektronische Bewehrungsdaten), digital invoices via email, and ZUGFeRD-compliant invoicing for automated accounting.
• Qualitatives Schweißen auf der Baustelle (Certified Mobile Welding on Construction Sites) Mobile welding technology for reinforcing steel on regional construction sites, with certified authorisations per DIN EN ISO 17660-1 (welding processes 111 and 135 for B500A and B500B) and EN 1090 EXC 2. Available at Rosenfeld and Lübeck locations.

Quantifiable outcome

• 800 tonnes of reinforcing steel and 40 tonnes of mesh delivered for the new Rottweil district office, with installation through end of 2026.
• +3 more outcomes

Named customers9 records

Segments5 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

Partnerships

Four partnerships are on record, tiered core and minor.

• solid UNIT e.V.coreStrategic or Co-development Partner · 5 March 2026SÜLZLE collaborates with solid UNIT e.V. and Holcim on events focused on greenhouse gas reduction in reinforcement steel and concrete. The partnership drives industry dialogue on decarbonisation in construction, with joint events such as 'Ins Machen kommen' at Holcim's Dotternhausen facility.
• HolcimcoreStrategic or Co-development Partner · 5 March 2026Joint events with Holcim (cement and concrete manufacturer) on sustainable construction and CO₂ reduction in reinforcement steel and concrete. Collaboration on data and knowledge transfer between steel and concrete supply chains for the construction industry.
• SÜLZLE Nutzeisen (Sulz a.N.)coreStrategic or Co-development PartnerRelated entity within the SÜLZLE Group supplying new and used steel. Visited by Ed. Züblin AG during partnership meetings. Part of the group's broader steel trading ecosystem covering new and secondary steel materials.
• SOTRALENTZ CONSTRUCTIONminorStrategic or Co-development PartnerCollaborated on the Arlinger Tunnel Pforzheim project. SOTRALENTZ supplied 2,000 tonnes of list mats for the tunnel construction while SÜLZLE supplied 2,000 tonnes of reinforcing steel and performed laying work.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Klöckner & Co SE: Frankfurt-listed European steel and metal distribution major with a broad multi-product portfolio. Overlaps with SÜLZLE's Streckengeschäft (steel trading) and Biegebetrieb but operates at national/international scale with broader customer diversification.
• Salzgitter AG: One of Germany's largest steel producers with integrated rebar/wire-rod output and downstream distribution. Competes with SÜLZLE's reinforcing-steel supply and benefits from upstream integration SÜLZLE lacks; offers overlapping rebar, mats, and processing services at much larger scale.
• ArcelorMittal Europe: World's largest steel producer with significant German and European rebar/wire-rod operations and a dedicated Construction Solutions division. Comparable as a supplier of reinforcing steel and fabricated products; far larger and integrated upstream versus SÜLZLE's distribution-led model.
• ThyssenKrupp Steel Europe: Major German steel producer with downstream construction-products exposure. Comparable through reinforcing steel supply to the same German contractor base and infrastructure projects that SÜLZLE serves; competes on both raw rebar and increasingly on green-steel offerings.

Direct peers

• Badische Stahlwerke GmbH: Southwest German steelmaker and rebar producer based in Kehl. Direct overlap with SÜLZLE's reinforcing-steel product line and Southwest German customer base, competing for similar industrial, residential, and infrastructure projects.
• Kerschgens Werke GmbH: German steel-processing and rebar fabrication specialist with multi-site German operations. Direct comparable in bending capacity, regional branch footprint, and industrial/infrastructure customer base; competes for similar Mittelstand and large-project contracts.

Emerging players

• Peikko Group: Finnish-headquartered supplier of steel connection products and reinforcement technology (screw couplings, composite beams). SÜLZLE distributes Peikko/MODIX screw connections, making it both a partner and partial competitor in advanced reinforcement solutions for German contractors.

Others

• Bauforumstahl e.V. German industry association representing steel construction and reinforcing-steel suppliers. Not a competitor but a relevant industry-body peer that shapes German standards, ESG codes, and procurement frameworks impacting SÜLZLE's commercial environment.

Market position

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/c/S%C3%BClzleGruppe
• Facebookfacebook.com/SuelzleGruppe
• LinkedInlinkedin.com/company/s%C3%BClzle-gruppe
• Instagraminstagram.com/suelzle_gruppe

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 SÜLZLE Stahlpartner GmbH