What Gearworks does

Gearworks a.s. is a Czech heavy-industrial manufacturer producing custom gearboxes, gearing components, and complete mechanical powertrain solutions for mining, steelworks, railway, power generation, and offshore/marine customers. The company's product portfolio spans spur/helical, bevel, planetary, and GLOBOID worm gearboxes alongside external/internal cylindrical gears and bevel gears, with manufacturing capability ranging from modules of 0.5mm to gears up to 4,200mm in diameter and weights from tens of kilograms to tens of tons. In-house heat treatment (carburizing, hardening, tempering, annealing in furnaces up to 3,450mm diameter), welding (including difficult-to-weld materials), and KISSsoft/Solid Edge-based design engineering enable an end-to-end offering from concept to finished product.

The business operates on a quote-based, custom-manufacturing model with no public pricing, distributed via direct enterprise sales and supported by trade fair presence (RAIL BUSINESS DAYS, International Engineering Fair Brno). Revenue streams combine one-time equipment sales (gearboxes, gearing components, custom machine units) with professional-service revenue from GEARCARE maintenance, overhauls, and heat treatment contracts. Named customers include Severočeské doly a.s. (a major mining customer for whom a complete 43-ton gearbox for a K10 000 excavator was overhauled) and other heavy-industry accounts in primary segments of mining/mineral processing and steelworks/metallurgy.

The company is structured as a Czech joint-stock company (IČ 25877933), headquartered in Ostrava-Vítkovice, with 51-100 employees and five active certifications (EN ISO 9001:2015, ISO 45001:2018, ČSN EN ISO 3834-2, ČSN EN 15085-2 CL1, plus TÜV NORD audit). Following 2023 reorganization under insolvency administrator JUDr. Jan Langmeier and approval of a reorganization plan, the GEARWORKS plant was acquired by GMC tech s.r.o. in 2024, making GEARWORKS a division of that company within the broader WITKOWITZ engineering group. A court-ordered electronic auction was scheduled for August 30, 2024, indicating ongoing asset-level restructuring despite continued operations.

Name

Gearworks

Legal name

GEARWORKS a.s.

Website

https://gearworks.cz

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

51–100 employees

Short description

Gearworks a.s. is a Czech custom manufacturer of industrial gearboxes, gearing, and heavy mechanical powertrain components for mining, steelworks, railway, and heavy-industry customers, operating as a division of GMC tech s.r.o. within the WITKOWITZ engineering group.

Ownership category

akta.pro rank

Product category

Industrial Gearboxes and Mechanical Power Transmission

NAICS

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

SIC

Special Industry Machinery, Nec (3559), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

Gearmotors, Gearboxes & Speed Reducers (IMAGACAF)

Keywords

• Industrial gearboxes
• Mechanical power transmission
• Precision gearing components
• Heavy industry manufacturing
• Gearbox repair services

Headquarters

HQ city

Ostrava

HQ country

Czechia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Gearbox Manufacturing and Sales: Design, manufacture, and sale of custom industrial gearboxes including spur, bevel, planetary, globoid-worm, and combined types. Products range from tens of kilograms to tens of tons in weight.
2. Gearing Components Sales: Production and sale of gear components including external/internal cylindrical gears, bevel gears, and globoid worm gears to industrial customers.
3. Service, Maintenance and Overhauls: Full service for renewal, repair and commissioning of used, worn-out or damaged gearboxes. Includes GEARCARE service for machinery maintenance.
4. Custom Machine Manufacturing: Job-order production of machine components and complex technological units per customer-supplied documentation.
5. Heat Treatment Services: Heat treatment services including cementing, hardening, tempering, and annealing for customer components.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Gearworks a.s. designs, manufactures, and sells custom industrial gearboxes (spur/helical, bevel, planetary, globoid-worm, and combined configurations) and precision gearing components, ranging from tens of kilograms to tens of tons. The company provides full in-house services including design and engineering, machining, heat treatment, welding, assembly, and gearbox repair and overhaul through its GEARCARE service. Production targets heavy-industry sectors including mining, steelworks, power generation, railway, and marine.

Product overview

Gearworks is a manufacturing company specializing in industrial gearboxes and precision gearing components. The core product portfolio includes various gearbox types (spur/helical, bevel, planetary, globoid-worm, and combined configurations) and precision gears (cylindrical external/internal toothing, bevel gears, globoid worms). The offering is structured as a comprehensive manufacturing service encompassing design and engineering, precise manufacturing, heat treatment, welding, and service/maintenance capabilities. Supporting services include GEARCARE for equipment servicing and GEAR Academy for workforce training.

Differentiator

Problem solved

Functional benefit

Brands

• GEARCARE: Service and maintenance service for machinery equipment

Products and services

• Industrial Gearboxes Custom industrial gearboxes including spur/helical, bevel, planetary, globoid-worm, and combined configurations, ranging from kilograms to tens of tons in weight. Designed and manufactured for heavy-industry customers in mining, steelworks, power generation, and related sectors.
• Precision Gearing Components Precision gear manufacturing including cylindrical gears with external/internal toothing, bevel gears, and globoid worm gears with axial distances from 160-1000mm, modules from 0.5 to over 30mm.
• Precise Manufacturing (Custom Machine Production) Custom machine production including machining, assembly, painting, and conservation of individual components and complex technological units per customer documentation.
• Service, Maintenance and Overhauls Full service for renewal of used gearboxes including disassembly, inspection, new parts production, assembly, and commissioning. Includes the GEARCARE service for machinery maintenance.
• Heat Treatment Services Heat treatment operations including carburizing, hardening, tempering, and annealing with furnaces up to 3300mm diameter capacity, supporting both in-house and customer components.
• Welding Services Welding services for gearbox bodies and complex weldments using MIG/MAG electric arc method, including difficult-to-weld materials, certified to ČSN EN ISO 3834-2 and ČSN EN 15085-2 CL1.
• Design and Engineering Custom gearbox design using KISSsoft calculations and Solid Edge 3D modeling, including expert consultation and documentation restoration.
• GEARCARE Service and Maintenance Service and maintenance offering for machinery equipment, providing service and maintenance for industrial gearboxes and related machinery.

Named customers2 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and major.

• GMC tech s.r.o.coreStrategic or Co-development PartnerGMC tech s.r.o. acquired the GEARWORKS plant and GEARWORKS a.s. became a division of GMC tech s.r.o. The partnership aims to continue manufacturing and selling unique engineering products to all industries, maintaining cooperation with existing and new customers.
• WITKOWITZ groupcoreStrategic or Co-development PartnerGEARWORKS a.s. is part of the WITKOWITZ engineering group, which has long-term projects in South America (Brazil, Peru) for wastewater treatment, agricultural storage tanks, and mining. Paulo Victor Junquiera represents the group in Brazil and Peru.
• Severočeské doly a.s.majorOthersMajor customer for gearbox repair and manufacturing. Completed complete overhaul of 43-ton gearbox for K10 000 excavator. Ongoing production of gearboxes and spare parts.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• SEW-EURODRIVE: SEW-EURODRIVE manufactures industrial gearboxes, gearmotors, and electronic drives for similar heavy-industry applications including mining, steel, and bulk material handling. Comparable in offering gearboxes from standard to custom-engineered configurations and serving global B2B customers.
• NORD DRIVESYSTEMS: NORD DRIVESYSTEMS manufactures industrial gear units, gearmotors, and drive electronics for heavy industry applications including bulk material handling, mining, and metallurgy. Comparable in product offerings (helical, bevel, worm gearboxes) and in serving similar European industrial customers with custom-engineered solutions.
• Bonfiglioli: Bonfiglioli is a major Italian manufacturer of gearboxes, gearmotors, and drive systems serving industrial process, mining, marine, and renewable energy markets. Directly comparable as a European custom gearbox manufacturer with similar product breadth across helical, bevel, planetary, and worm configurations.
• Sumitomo Drive Technologies: Sumitomo Drive Technologies manufactures industrial gearboxes including cyclo, helical, and worm configurations for mining, steel, and bulk material handling. Comparable as a global gearbox specialist serving similar heavy-industry customer segments with custom-engineered solutions.
• Flender: Flender (a Siemens subsidiary) is one of the world's leading manufacturers of mechanical gear drives and gearboxes for industrial applications, including mining, steel, power, and marine - directly overlapping Gearworks' core product portfolio and customer base with similar spur, bevel, planetary, and worm configurations.
• RENK Group: RENK Group is a German specialist manufacturer of high-quality gear units, power transmissions, and test systems for military, industrial, and marine applications. Directly comparable in heavy-duty custom gearboxes and power transmission systems for demanding industrial environments.
• ZAE-AntriebsSysteme: ZAE-AntriebsSysteme is a German manufacturer of industrial gearboxes and gear units for heavy machinery, including custom-engineered solutions for mining, steel, and bulk material handling. Directly comparable as a European custom gearbox manufacturer serving similar heavy-industry verticals.
• David Brown Gear Systems: David Brown (now part of Clyde Blowers Capital) specializes in heavy-duty industrial gearboxes for mining, steel, power generation, and marine applications - directly comparable to Gearworks in product range and customer verticals, particularly in large custom-engineered gearbox solutions.

Broad incumbents

• Voith: Voith is a large German engineering group supplying power transmission, drivetrain, and coupling systems across hydro, paper, and heavy industry. Overlaps with Gearworks in industrial drives and gearboxes for mining/metallurgy but operates as a broad incumbent with much wider portfolio including hydro turbines.

Emerging players

• WITTENSTEIN: WITTENSTEIN specializes in high-precision planetary and right-angle gearboxes for robotics, aerospace, and demanding industrial applications. Comparable in advanced gear engineering and custom gearbox capability, though focused on smaller high-precision units rather than Gearworks' heavy industrial scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Gearworks.a.s
• LinkedIncz.linkedin.com/company/gearworks-a-s

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Gearworks