GSN

What GSN does

GSN Maschinen-Anlagen-Service GmbH is a privately held, manufacturer-independent industrial service provider headquartered in Rottenburg-Hailfingen, Germany. The company specializes in machine tool and production equipment services, with a portfolio that covers retrofits, automation solutions, overhauls, and the construction of special machinery. It serves customers primarily in the automotive sector, alongside machine tool manufacturers and general industrial manufacturers, and explicitly positions itself as independent of any machine OEM.

The company operates through an unusually broad physical footprint: five German branches beyond the Rottenburg-Hailfingen headquarters (in Kölleda, Mosbach, Leipzig/Schkeuditz, Kamenz, and Aschersleben) plus two wholly-owned international subsidiaries — one in Querétaro, Mexico and one in Poznań, Poland. Service delivery is organized around specialized teams grouped by machine type and technology, enabling targeted retrofit and overhaul work across heterogeneous machine fleets.

The business model is project-based industrial services revenue: GSN earns from contracted retrofit, automation, overhaul, and special-machine engagements, with the German automotive industry as the anchor vertical and an expanding customer base across European and Mexican manufacturing. Leadership consists of co-managing directors André Elz and Christian Munzinger. No revenue, headcount, funding, or customer concentration figures are disclosed in the available data.

Name

GSN

Legal name

GSN Maschinen-Anlagen-Service GmbH

Website

https://gsn-service.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

101–250 employees

Short description

GSN Maschinen-Anlagen-Service GmbH is a Germany-based, manufacturer-independent industrial service provider delivering retrofits, automation, overhauls, and special machinery for machine tools to automotive and general manufacturing customers across Europe and Mexico.

Ownership category

akta.pro rank

Product category

Machine Tool Services (Retrofit, Overhaul, Automation, Relocation)

NAICS

Electronic and Precision Equipment Repair and Maintenance (811210)

SIC

General Industrial Machinery & Equipment (3560), Misc Industrial & Commercial Machinery & Equipment (3590)

akta.pro primary industry

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

akta.pro secondary industry

Testing, Inspection, Certification & Commissioning (TICx) Technical Services (BPAHAIAL)

Keywords

• Machine tool retrofit services
• CNC automation retrofit
• Industrial maintenance services
• Special machinery engineering
• Machine tool overhaul

Headquarters

HQ city

Rottenburg

HQ country

Germany

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Machine Tool Service & Maintenance: Ongoing maintenance and service for machine tools including repairs, troubleshooting, and preventive maintenance. Services provided at customer sites and at GSN facilities.
2. Retrofit & Overhaul: Complete refurbishment and modernization of existing machine tools (RE.trofit), bringing older machines to updated specifications and performance levels.
3. Automation Solutions: Retrofitting existing machines with automation capabilities (RE.motion) including robotic systems, material handling, and process automation.
4. Rebuilding & Modification: Custom rebuilding and modification of machine tools (RE.tool) to meet new production requirements or specifications.
5. Special Machinery: Design and manufacturing of custom special-purpose machines for specific customer requirements.
6. Used Machines: Sale of refurbished and tested used machine tools.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

GSN provides manufacturer-independent engineering services for the reuse, modernization, and automation of CNC machine tools. Its core offering is the "RE." service portfolio spanning RE.motion (retrofit automation), RE.trofit (overhaul/refurbishment), RE.tool (conversion/rebuilding), and RE.location (relocation), complemented by custom special-purpose machine design, process technology services (tool engineering, fixture construction, NC programming), and used machine sales. Services target production equipment of multiple premium CNC brands across automotive powertrain, machine tool, and general manufacturing customers.

Product overview

GSN (GSN Maschinen-Anlagen-Service GmbH) is a manufacturer-independent service provider offering a comprehensive portfolio of machine tool services centered on the reuse and revitalization of existing manufacturing equipment. The core offerings follow the 'RE.' philosophy encompassing RE.motion (automation retrofit), RE.trofit (overhaul/refurbishment), RE.tool (conversion/rebuilding), and RElocation (relocation). This is complemented by special machinery design, process technology services (tool engineering, fixture construction, NC programming), used machine sales, and maintenance services. GSN positions itself as a one-stop provider delivering the complete process chain from a single source, serving industries including automotive (powertrain), tool machine, and general manufacturing sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• RE.motion (Automation) Retrofit automation solution that adds automation capabilities to existing CNC machine tools, enabling previously manual or semi-automatic machines to operate with automated loading, robotic material handling, and process automation.
• RE.trofit (Retrofit / Überholung) Complete overhaul and refurbishment service for CNC machine tools to restore or improve their performance, precision, and operational life across multiple premium machine brands.
• RE.tool (Umbau / Conversion) Machine tool conversion and rebuilding service that adapts existing equipment to new manufacturing requirements, process changes, or updated specifications.
• RE.location (Verlagerung / Relocation) Machine relocation service that handles transferring and reinstalling production equipment between customer facilities.
• Sondermaschinen (Special Machinery) Design and manufacturing of custom special-purpose machines tailored to specific customer manufacturing requirements.
• Technologie & Prozess (Process Technology) Process technology services covering tool engineering, fixture construction (Spannvorrichtungsbau), and NC programming to design and realize complete machining processes from cubing through fine spindling.
• Gebrauchtmaschinen (Used Machines) Sale of refurbished, tested, pre-owned manufacturing equipment (used machine tools).
• Instandhaltung (Maintenance) Preventive and corrective maintenance services for machine tools and manufacturing systems, performed at customer sites and at GSN facilities.
• Service für hochpräzise Großwerkzeugmaschinen (High-Precision Large Machine Tool Service) Specialized service offering for high-precision large-scale machine tools.
• Service für NBH Maschinen (NBH Machine Service) Dedicated service and support offering for NBH machine series, led by the GSN Mosbach/Schefflenz branch.

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators3 records

Recent moves1 record

Expansion highlights4 records

Direct peers

• Starrag Group: Swiss-based high-precision machine tool manufacturer with a strong customer service and retrofit business serving aerospace and industrial customers. Comparable in offering machine tool lifecycle services and process technology support to demanding production environments.
• Heller GmbH: German machine tool manufacturer with a strong service and retrofit business serving automotive powertrain customers. Directly comparable as a German-based provider offering machine tool lifecycle services, including overhauls, retrofits, and process engineering on similar machine brands.
• SW Schwäbische Werkzeugmaschinen GmbH: German machine tool builder with a significant service and retrofit arm. GSN specifically references SW as one of its areas of expertise, making SW both a supplier ecosystem participant and a competitor in the aftermarket service market.
• EMAG Holding GmbH: German machine tool group with extensive automotive powertrain focus and an integrated service portfolio. Comparable for its mix of new machine sales, retrofit/overhaul services, and process engineering targeting the same powertrain machining customer base.

Broad incumbents

• GROB-WERKE GmbH & Co. KG: Large German machine tool manufacturer specializing in powertrain and assembly systems. GSN explicitly references Grob as a brand it services. Comparable as both a potential competitor for service work and a customer ecosystem participant.
• DMG MORI: Global machine tool leader with a comprehensive service organization covering maintenance, retrofit, and digital upgrades. Comparable as a broad incumbent offering overlapping machine tool lifecycle services, though GSN's manufacturer-independent positioning differentiates it.
• TRUMPF: Global industrial machine and laser technology leader with an extensive service portfolio. Comparable as a broad industrial equipment incumbent offering customer service, retrofit, and automation solutions to manufacturing customers.
• FFG (Fair Friend Group): Taiwanese-headquartered machine tool conglomerate owning multiple European machine tool brands (MAG, Heller predecessors, etc.). Comparable for owning brands that GSN services and operating a broad service network overlapping with GSN's customer base.

Emerging players

• Lehmann CNC-Technik GmbH: Smaller German independent machine tool service provider. Comparable as a manufacturer-independent specialist offering retrofit, rebuild, and service work to mid-sized German manufacturers, similar to GSN's positioning.
• Häberle GmbH & Co. KG: Mid-sized German machine tool builder and service provider with focus on flexible automation and special-purpose machines. Comparable for offering custom machine builds, automation integration, and after-sales service to German manufacturing customers.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries2 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 GSN