Heinz Soyer Bolzenschweißtechnik GmbH

What Heinz Soyer Bolzenschweißtechnik GmbH does

Heinz Soyer Bolzenschweißtechnik GmbH is a privately held German manufacturer founded in 1970 and headquartered in Wörthsee, Bavaria. The company specializes exclusively in stud welding technology (Bolzenschweißtechnik) under the trade name Soyer, and operates as a small, family-controlled business with three generations of the Soyer family serving as Managing Directors. It manufactures portable and stationary stud welding power sources, welding guns, automatic welding heads, CNC-controlled welding machines, and a full line of in-house-produced welding studs and elements. Its proprietary SRM (radially symmetrical magnetic field) technology, evolved to SRM 4.0 with arc position detection, is the core technical differentiator and is protected by European Patent EP 3 178 597 B1 and additional German filings.

Soyer serves B2B customers exclusively across vehicle construction, metal and glass construction, household appliances, food industry, mechanical engineering, container construction, shipbuilding, and apparatus manufacturing. The company sells direct via its soyer.de online shop, through international sales representatives and country agencies, and at trade fairs including IHM Munich and Euroblech. Pricing is net ex-VAT with a 45 euro minimum order value, restricted to entrepreneurs, traders, freelancers, and public institutions. The revenue model combines one-time equipment sales with recurring spare parts and accessories, supported by product support services.

The firm has been recognized with twelve or more German Federal Innovation Prizes since 1989, multiple Bavarian State Prizes, and the 2013 Seifriz Prize, reinforcing a "Made in Germany" premium positioning. It runs a 472 kWp photovoltaic system across its production buildings for largely climate-neutral energy supply. There is no external institutional or venture capital ownership, no disclosed revenue figure, and headcount is reported at 17 employees.

Name

Heinz Soyer Bolzenschweißtechnik GmbH

Legal name

Heinz Soyer Bolzenschweißtechnik GmbH

Website

https://soyer.de

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

Heinz Soyer Bolzenschweißtechnik GmbH is a family-owned German manufacturer of stud welding equipment, guns, CNC machines, and in-house-produced welding studs, serving B2B industrial customers across vehicle, metal, food, and appliance sectors with proprietary SRM technology.

Ownership category

akta.pro rank

Product category

Industrial Stud Welding Equipment

NAICS

Welding and Soldering Equipment Manufacturing (333992), Metalworking Machinery Manufacturing (3335)

SIC

Metalworkg Machinery & Equipment (3540)

akta.pro primary industry

Welding, Joining & Soldering Equipment (Arc, Resistance, Friction, Brazing) (IMAHADAH)

akta.pro secondary industry

CNC Machine Tools (Turning, Milling, Machining Centers) (IMAHADAA)

Keywords

• Stud welding equipment
• Stud welding guns
• CNC welding machines
• Weld fasteners
• Stud welding technology

Headquarters

HQ city

Wörthsee

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Stud Welding Equipment Sales: Direct sales of portable stud welding equipment, welding guns, welding heads, CNC-controlled stud welding machines, and related accessories through B2B online shop. The company sells directly to entrepreneurs, traders, freelancers, and public institutions.
2. Welding Studs & Elements: Production and sale of welding studs and welding elements manufactured at the company's own local production facility to ensure product safety and quality.
3. Spare Parts & Accessories: Ongoing sales of spare parts and accessories for the stud welding equipment product lines.
4. Product Support Services: Technical support, product support, and download resources including instructions, catalogs, and documentation for customers.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Heinz Soyer Bolzenschweißtechnik GmbH manufactures and sells stud welding equipment, welding guns, welding heads, CNC-controlled stud welding machines, and in-house produced welding studs and elements. The company supplies portable mini-format devices through to large-scale CNC systems for industrial customers requiring high-speed fastening and joining technology. Production, including welding studs and elements, is carried out at the company's own facility in Wörthsee, Germany, with distribution via B2B online shop, international sales representatives, and trade fair sales.

Product overview

Heinz Soyer Bolzenschweißtechnik GmbH is a German manufacturer specializing in stud welding technology with a comprehensive product portfolio. The offering consists of core product categories including stud welding equipment (inverters and power sources), stud welding guns/pistols, weld fasteners/studs manufactured in-house, and CNC-controlled automated welding systems, complemented by spare parts and accessories. The product range spans from portable mini stud welding devices to large-scale CNC machines. Notable products include the HesoMatic-9 mobile station, BMK-8i ACCU battery-powered inverter, PH-9 and PHS-4.0 welding guns, LSK-1 universal welding head, and the proprietary SRM (radial-symmetrical magnetic field) technology. The company emphasizes 'Made in Germany' quality with products serving industries including vehicle construction, metal and glass construction, household appliances, food industry, mechanical engineering, container construction, shipbuilding, and apparatus manufacturing.

Differentiator

Problem solved

Functional benefit

Brands

• SRM: SRM (radial symmetric magnetic field) technology for stud welding, developed in cooperation with universities.
• SRM 4.0

Products and services

• Stud Welders (Bolzenschweißgeräte) Portable and stationary stud welding power sources and inverters for various welding applications, including the BMK-8i ACCU battery-powered model. Used by industrial manufacturers for fastening studs to metal workpieces.
• Stud Welding Guns (Bolzenschweißpistolen) Welding pistols and guns including the PS-2KS, PH-9 SRM12, PH-9 SRM+G, and PHS-4.0 models for different welding processes and applications, including gap welding, contact welding, and large-diameter stud welding.
• Weld Fasteners (Schweißelemente) Welding studs and elements manufactured in-house at the Wörthsee facility for various materials including steel, stainless steel, aluminium, and brass, ensuring product safety and quality.
• CNC Stud Welding Machines (CNC-Bolzenschweißanlagen) CNC-controlled automated stud welding systems designed for industrial production processes requiring high precision and repeatability.
• Spare Parts and Accessories (Ersatzteile & Zubehör) Replacement parts and accessories for the complete Soyer product range.
• HesoMatic-9 Mobile Stud Welding Station Mobile stud welding station integrating energy source, control, and feeding unit into a single compact housing for portable assembly work and field applications.
• BMK-8i ACCU Battery Welding Inverter World's first portable high-power rechargeable battery-powered stud welding inverter with drawn arc ignition and SRM technology, weighing only 8 kg for mobile assembly work without mains power access.
• LSK-1 Automatic Stud Welding Head Automatic stud welding head with wear-free linear motor suitable for all known stud welding processes, with Industry 4.0 compliance and full network capabilities.

Quantifiable outcome

• Up to 90% reduction in shielding gas consumption with PH-9 SRM12 welding gun
• +3 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core and minor.

• SLV Munich (Schweißtechnische Lehr- und Versuchsanstalt München)coreStrategic or Co-development Partner · 27 May 2019Research partnership for aluminium stud welding process development. SLV Munich (Training and Testing Institute of Welding Technology) provides basic research and analysis capabilities as part of the AZ-1363-18 research project funded by the Bavarian Research Foundation.
• University of the Federal Armed Forces Munich (UniBwM)coreStrategic or Co-development Partner · 27 May 2019Academic partnership for aluminium stud welding research project AZ-1363-18. Professor Jochen Schein and Dr.-Ing. Karsten Hartz-Behrend collaborated on the SRM technology development and SRM 4.0 arc position detection innovation.
• Bavarian Research FoundationminorOthers · 27 May 2019Provided funding for the aluminium stud welding research project AZ-1363-18 'New aluminium stud welding process up to 12 mm' focusing on improving welding quality for stud welded joints up to 12mm diameter.
• GSI (Gemeinschaft zur Förderung der Schweiftechnik Industrie)minorStrategic or Co-development Partner · 27 May 2019Research partner in the aluminium stud welding project, with Prof. Dr.-Ing. Heidi Kramer as Head of Research and Innovation contributing to the project development.
• Professor Heidi Cramer (SLV Munich)coreStrategic or Co-development Partner · 27 September 2013Academic partnership for SRM (radially symmetrical magnetic field) stud welding development. Professor Cramer contributed expertise in welding technology for the innovation recognized with the Seifriz Prize 2013.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Tru-Weld Stud Welding Associates: US manufacturer of drawn-arc and CD stud welding equipment, studs, and accessories with a comparable B2B distributor and direct sales model; competes with Soyer in international industrial fastening applications.
• Taylor Studwelding Systems: UK manufacturer of stud welding systems, CNC machines, and welding consumables, serving similar end markets including automotive, construction, and general fabrication — directly comparable in product scope and customer base to Soyer.
• HBS Bolzenschweiss-Systeme: Germany-based specialist in stud welding equipment, guns, and studs, with overlapping product categories in portable and stationary stud welders; Soyer and HBS are the two most prominent German mid-market stud welding brands and compete head-to-head in DACH industrial customers.
• KÖCO (Köster & Co.): German manufacturer of stud welding equipment and welding consumables with deep roots in industrial fastening; Soyer and Köco compete directly in German and European industrial customers with similar portable and stationary stud welding solutions.
• Nelson Stud Welding: Long-established US-based manufacturer of stud welding equipment, studs, and accessories — historically the most direct global competitor to Soyer in drawn-arc and capacitor discharge stud welding, with comparable product breadth across handguns, power sources, and CNC heads.
• Image Industries: US-based stud welding equipment, stud, and fastener manufacturer serving construction, manufacturing, and rental channels — overlaps with Soyer in portable stud welding equipment and consumable studs.

Broad incumbents

• Lincoln Electric: Largest global arc welding equipment company, offering stud welding solutions as part of a broad industrial welding portfolio; competes with Soyer primarily on scale, channel, and standard stud welding applications.
• ESAB: Global welding and cutting equipment manufacturer with stud welding products alongside its much larger cutting and arc welding portfolio; competes in stud welding primarily through standard equipment offerings rather than Soyer's specialized SRM-style innovations.
• Fronius International: Austrian global welding technology leader offering a wide portfolio of arc welding, resistance welding, and stud welding systems; competes with Soyer in stud welding as part of a much broader industrial welding portfolio and larger global service network.

Emerging players

• KUKA: German industrial robotics and automation company whose welding robot cells increasingly incorporate stud welding as a downstream capability; less direct overlap in stud welding equipment, but adjacent in automated/Industry 4.0 welding cells where Soyer's CNC and LSK-1 products also compete.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/bolzenschwei%C3%9Ftechnik-heinz-soyer-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Heinz Soyer Bolzenschweißtechnik GmbH