Stelter

Name

Stelter

Legal name

Stelter Zahnradfabrik GmbH

Website

https://stelter.de

Company type

Private

Founded year

1950

Operating status

Operating

Headcount range

251–500 employees

Ownership category

akta.pro rank

Product category

Precision Gear Manufacturing

NAICS

Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)

SIC

Special Industry Machinery, Nec (3559)

akta.pro primary industry

Grinding, Honing & Superfinishing Equipment (IMAHADAE)

akta.pro secondary industry

Aerospace Fasteners & Hardware (IMABANAA)

Keywords

• Precision gear manufacturing
• Automotive drivetrain gears
• Wind power gear components
• Railway transmission gears
• Industrial gearboxes

Headquarters

HQ city

Bassum

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision gear manufacturing and sales: Manufactures and sells high-tech precision gears and drive elements in large and small series. Products include gears for automotive (PKW, commercial vehicles, e-mobility), wind power, rail transport, and general industrial applications. Revenue generated through direct B2B sales to OEMs and manufacturers. Just-in-time delivery contracts with global customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Stelter manufactures precision gears with module sizes ranging from 0.5 to 44 and unit weights up to 2 tons for automotive, commercial vehicle, e-mobility, wind power, rail transport, and general industry applications. The company operates a complete in-house process chain covering soft machining, heat treatment, hard machining and final assembly, producing around 8 million geared drive elements per year on a >95% automated production system using 240+ precision robots and 290+ CNC machines.

Product overview

Stelter Zahnradfabrik GmbH is a precision gear manufacturing company offering a comprehensive portfolio of high-tech gears across multiple industry verticals: passenger cars (PKW), commercial vehicles (Nutzfahrzeuge), e-mobility, wind power, rail transport, and general industrial applications. The company operates integrated manufacturing competencies including soft machining (sawing, lathing, gear cutting, shaping, milling, broaching, laser welding), heat treatment (LPC furnaces, vacuum carburising), hard machining (hard lathing, grinding, EDM, gear grinding, gear honing), and assembly services. The manufacturing process is highly automated with approximately 200 robots and over 290 CNC machines, supporting production from module 0.5 to 44 and unit weights up to 2 tons. The company also provides Magic Hands services for custom assembly solutions and maintains IATF 16949 certified quality management. Founded in 1950, Stelter operates from Bassum, Germany with over 400 employees across approximately 29,000-33,000 m² of production space.

Differentiator

Problem solved

Functional benefit

Products and services

• PKW (Passenger Cars) Gears Precision gears for passenger-car drivetrains, supplied to automotive OEMs and Tier 1 suppliers as serial production components manufactured to automotive quality standards (IATF 16949).
• Commercial Vehicle (Nutzfahrzeuge) Gears Precision gears for commercial-vehicle drivetrains, manufactured in serial production with the same zero-defect, high-precision requirements as passenger-car gears and serving commercial-vehicle OEMs and suppliers.
• E-Mobility Gears Precision gears for electric-mobility drivetrains, addressing the new gear geometries and development needs of e-mobility applications, supplied to automotive OEMs and e-mobility drivetrain developers.
• Wind Power (Windkraft) Gears Large precision gears (modules up to 44, unit weights up to 2 tons) for wind turbine drivetrains, supplied to wind-turbine OEMs and wind-gearbox specialists requiring heavy, high-precision components.
• Rail Transport (Bahntechnik) Gears Precision gears for rail-vehicle drivetrains, manufactured for rail-industry customers to meet safety-critical reliability and quality requirements (SQMS zero-defect strategy, 100% documentation, ISO/IATF certifications).
• Other Industrial Products (Andere Produkte / Weitere Branchen) Precision gears for general industrial applications beyond automotive, wind power and rail, covering industrial OEMs and machinery builders that require gears across Stelter's full module range (0.5 to 44) and unit weights up to 2 tons.
• Heat Treatment Services (Wärmebehandlung) Contract heat-treatment services (Wärmebehandlung) including hardening and tempering, offered to external customers and complementing Stelter's in-house process chain for gear manufacturing.

Quantifiable outcome

• 8 million geared drive elements manufactured per year with consistently high quality
• +4 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• taff! Training Centre NetworkcoreStrategic or Co-development Partner · 1 January 2019taff! (technical training for specialist staff) is a regional initiative of companies from the industrial sector based in Bassum. Stelter is a member and opened its own training centre in 2019. The network provides comprehensive training for apprentices, with 120-150 days spent at the facility, exceeding minimum certification requirements.
• ZWP Zahnradwerk Pritzwalk GmbHminorStrategic or Co-development Partner · 1 January 2017Acquisition of a minority stake in ZWP Zahnradwerk Pritzwalk GmbH in 2017. ZWP is a gear manufacturing operation expanding Stelter's production capacity and geographic reach.
• PricoGear GmbHminorStrategic or Co-development Partner · 1 January 2017Affiliated heat-treatment facility acquired alongside the ZWP minority stake in 2017. Expands Stelter's heat treatment capabilities.
• Private Hochschule für Wirtschaft und Technik (PHWT)minorStrategic or Co-development PartnerPartnership for dual study programs. Stelter offers dual study opportunities in collaboration with PHWT, which offers 6 programs: Business Administration, Business Informatics, Mechanical Engineering, Mechatronics, Industrial Engineering, and Electrical Engineering. Programs completed in 3-3.5 years combining theory and practice.
• Certified Disposal ContractorsminorOthersCertified disposal companies support Stelter on all recycling and environmental compliance topics, including steel chip recycling (20+ tons daily), grinding sludge recycling, and general waste management.

Scale indicators8 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Flender GmbH: German gear manufacturer specializing in mechanical drive systems for wind, industrial, and marine applications. Acquired by Siemens in 2021 for approximately €2B, Flender directly competes with Stelter in wind and industrial gear markets with comparable product scope and customer base.
• SEW-Eurodrive: German family-owned drive technology company producing gear motors, electronic drives, and mechatronic systems. Direct competitor to Stelter in industrial gear and drive markets, with similar product portfolio, customer segments, and privately-held family ownership structure.
• Wittenstein SE: German precision gear and servo drive manufacturer focusing on high-precision applications including robotics, aerospace, and machine tools. Comparable to Stelter in precision gear manufacturing, quality certifications, and serving demanding industrial OEM customers.
• Eisenwerk Würth GmbH: German precision gear manufacturer specializing in large and custom gears for industrial applications. Similar in size, German mid-market positioning, and large-gear production focus to Stelter, serving comparable industrial and heavy-equipment customers.
• Renold plc: UK-based power transmission and gear manufacturer serving industrial markets globally. Comparable to Stelter in precision gear manufacturing for industrial applications, with similar product range covering gears, chains, and couplings.
• Nabtesco Corporation: Japanese precision gear manufacturer specializing in cycloidal and precision reduction gears for industrial robots, aerospace, and motion control. Comparable to Stelter in high-precision gear manufacturing serving demanding industrial OEM applications globally.

Broad incumbents

• ZF Friedrichshafen AG: One of the world's largest automotive suppliers, producing drivetrain, chassis, and active safety technologies. While much larger and broader than Stelter, ZF directly competes in automotive transmission gears and is a major buyer of precision gear components.
• Schaeffler Group: Global automotive and industrial supplier producing bearings, linear guides, and powertrain components. Overlaps with Stelter in automotive transmission components and industrial motion products, with much broader product portfolio and global footprint.
• Liebherr: Swiss-German machinery conglomerate with gear manufacturing capabilities across construction equipment, mining, aerospace, and other divisions. Overlaps with Stelter in large industrial gear production and high-quality precision components.
• BorgWarner Inc. US-based automotive powertrain supplier producing transmissions, drivetrain components, and turbochargers. Competes with Stelter in automotive drivetrain gears and transmission components across global OEMs.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/stelterzahnradfabrik
• LinkedInde.linkedin.com/company/stelter-zahnradfabrik-gmbh
• Instagraminstagram.com/stelter.zahnradfabrik

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Stelter