GMT Group
GMT Group is a family-owned German manufacturer of rubber-metal anti-vibration components and elastomer systems serving railway, construction machinery, marine, defense, and renewable energy OEMs through nine global production and sales facilities, with proprietary technologies such as HYDRALL® and MERP.
- Company typePrivate
- Founded1968
- HeadquartersBühl, Germany
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What GMT Group does
GMT Gummi-Metall-Technik GmbH, operating as GMT Group, is a family-owned German manufacturer specializing in rubber-metal anti-vibration components and elastomer-based systems. Founded in 1968 in Bühl by Gerhard and Atina Engstler and still under family control (with Thomas Engstler as Managing Director/Owner alongside three co-directors), the company designs and produces vibration-damping, noise-reducing, and shock-absorbing components — including air springs, conical springs, axle bearings, bushings, engine mounts, conical mountings, and patented innovations such as the HYDRALL® hydraulic axle bearing and MERP axle shield — for railway vehicles, construction machinery, marine, general/drive engineering, defense technology, and renewable energy customers. GMT differentiates through in-house elastomer compound development, multi-axial fatigue and creep testing capabilities, and an extensive certification portfolio (ISO 9001, EN 15085-2, ISO 22163/IRIS, ISO 14001, ISO 50001, AEO) supported by direct supplier approvals from Deutsche Bahn, České dráhy, SNCB, and DNV.
The company operates a global footprint of nine wholly-owned facilities — production plants in Germany (Bühl with eight plants; Sangerhausen), Brazil, India, Ireland, Malaysia, and the USA, plus sales offices in France, Switzerland, and the UK — employing more than 1,200 people worldwide. GMT's revenue model rests on three streams: (1) B2B hardware sales of custom-engineered and standardized anti-vibration components to industrial OEMs, priced per application specification and volume; (2) application-oriented R&D and engineering services, including component construction, computational strength and damage calculations, and RAMS/LCC documentation; and (3) after-sales support such as residual-life testing and field-data analysis to extend maintenance intervals. Go-to-market is sales-led, executed by in-house technical sales engineers working directly with manufacturer customers, supplemented by the TraceParts digital component catalog and a presence at industry trade fairs.
GMT Group firmographics
Firmographics- Name
- GMT Group
- Legal name
- GMT Gummi-Metall-Technik GmbH
- Website
- https://gmt-gmbh.de
- Company type
- Private
- Founded year
- 1968
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- GMT Group is a family-owned German manufacturer of rubber-metal anti-vibration components and elastomer systems serving railway, construction machinery, marine, defense, and renewable energy OEMs through nine global production and sales facilities, with proprietary technologies such as HYDRALL® and MERP.
- Ownership category
- akta.pro rank
GMT Group industry classification
Industry- Product category
- Anti-Vibration Components
- NAICS
- Plastics and Rubber Products Manufacturing (326), Synthetic Rubber Manufacturing (325212)
- SIC
- Fabricated Rubber Products, Nec (3060), Plastic Materials, Synth Resins & Nonvulcan Elastomers (2821)
- akta.pro primary industry
- Vibration Control & Anti-Vibration Products (Mounts, Bushings, Isolators) (IMANALAD)
- akta.pro secondary industries
- Molded & Extruded Industrial Rubber Parts (Custom Components) (IMANALAG), General-Purpose Rubber Compounds (NR/SBR/BR/EPDM) (IMANAJAA)
Keywords
Where GMT Group is headquartered
LocationHeadquarters
- HQ city
- Bühl
- HQ country
- Germany
- HQ region
- Europe
Offices10 records
Markets served
GMT Group business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Anti-vibration Component Manufacturing: GMT manufactures and sells custom anti-vibration components and systems including air spring systems, conical springs, axle bearings, primary springs, chevron springs, bushings, spherical bearings, ball joints, steering rods, torque multipliers, and specialized marine and defense mounts. Products are sold directly to industrial manufacturers as original equipment.
- Engineering and R&D Services: GMT provides application-oriented research and development services in close cooperation with customers. This includes component construction, computational strength calculations, damage calculations, fatigue strength analysis, and product validation testing. Services support RAMS/LCC (Reliability, Availability, Maintainability, Safety / Life Cycle Costs) documentation requirements.
- After-Sales Support and Testing: GMT offers product condition assessment, residual life testing, and field data collection to support customers in predicting remaining useful operation time and extending maintenance intervals. This supports customer overhaul cost reduction and documentation requirements.
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
GMT Group product offering
Product offeringCore offering
GMT Group manufactures and distributes custom-engineered and standardized rubber-metal anti-vibration components and systems, including suspension elements (air springs, conical springs, primary springs, chevron springs, roller springs, guidance springs), bearings (bushings, spherical bearings, ball joints, axle bearings, rotor/generator bearings), and mountings (engine, cabin, machine feet, decoupling elements, crane/pump/radio device mountings). The company develops proprietary elastomer compounds in-house and offers patented products such as the HYDRALL® hydraulic axle bearing and MERP axle shield. Components are sold as original equipment to industrial manufacturers in railway vehicles, construction machines, marine, general/drive engineering, defense technology, and renewable energy sectors.
Product overview
GMT Group is a leading manufacturer of vibration technology components and systems, operating as a single-product portfolio company focused on rubber-metal anti-vibration solutions. The product range centers on elastomer-based components for damping, isolating, and decoupling vibrations across diverse industrial applications. The core offerings include suspension systems (air springs, conical springs, primary springs, roller springs), bearing assemblies (bushings, spherical bearings, ball joints, axle bearings), and mounting solutions (engine mounts, machine feet, cabin mounts). Patented innovations include the HYDRALL® hydraulic axle bearing and MERP axle shield for railway vehicles. Products serve six major application sectors: railway vehicles, construction machines, marine, general/drive engineering, defense technology, and renewable energies. GMT develops custom elastomer mixtures in-house and offers both standardized product families and bespoke engineered solutions tailored to specific customer load and environmental requirements.
Differentiator
Problem solved
Functional benefit
Products and services
- Air Spring Systems
Quantifiable outcome
- Extension of exchange intervals through residual life testing and field data analysis
- +2 more outcomes
Companies that use GMT Group
Customer profileNamed customers5 records
Segments6 records
Ideal customer profiles6 records
GMT Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
GMT Group partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered major and core.
- ABIFER (Associação Brasileira da Indústria Ferroviária)majorABIFER, the Brazilian Railway Industry Association, attended the opening ceremony of GMT's new Brazil plant. President Vicente Abate attended the inauguration, representing the railway industry association that supports and promotes railway sector development in Brazil. The partnership underscores GMT's commitment to the Latin American railway market.
- SIMEFRE (Associação dos Fabricantes de Veículos Equipamentos e Componentes para Ferrovias)majorSIMEFRE, the Brazilian association of manufacturers of railway vehicles, equipment and components, was represented at GMT Brazil's inauguration by Mr. Paschoal de Mario and Mr. Henrique Pedroso. This partnership provides access to Brazil's railway manufacturing ecosystem and industry network.
- Techniker Krankenkasse (TK)coreGMT signed a three-year cooperation agreement with Techniker Krankenkasse (TK), Germany's largest statutory health insurance provider, to establish a comprehensive occupational health management system (BGM). TK supports GMT professionally and financially, investing several thousand euros annually in health promotion measures for all employees. The partnership includes health surveys, workshops, further training, and BGM measures tailored to team needs.
Scale indicators6 records
Recent moves21 records
Expansion highlights5 records
GMT Group competitors and assessment
Company assessmentDirect peers
- Vibracoustic: Vibracoustic (a Freudenberg subsidiary) is one of the world's largest manufacturers of anti-vibration components for automotive and commercial vehicle applications. Directly comparable to GMT's rubber-metal mounting and bushing portfolio, though more skewed to automotive OEMs than railway.
- BOGE Elastmetall: BOGE Elastmetall (part of the BOGE Group / ZF Friedrichshafen ecosystem) produces rubber-metal components and vibration dampers for automotive, rail, and industrial applications. Highly comparable product overlap to GMT's bushings, mounts, and conical springs.
- Hutchinson: Hutchinson (TotalEnergies subsidiary) manufactures anti-vibration, sealing, and fluid transfer systems for automotive, rail, aerospace, and industrial markets. Directly comparable rubber-metal mount and bushing technology to GMT, with broader industry reach.
- Sumitomo Riko: Sumitomo Riko is a major Japanese manufacturer of rubber and elastomer products, including anti-vibration components for automotive and industrial applications. Comparable rubber compounding and vibration isolation technology; serves similar OEMs though with Asia-centric footprint.
- Parker LORD Corporation: Parker LORD manufactures vibration isolation, shock control, and elastomeric bonding products for aerospace, defense, and industrial markets. Comparable to GMT's rubber-metal mounting and shock absorption technology, particularly for defense and aerospace.
- Cooper Standard: Cooper Standard specializes in sealing, fuel/brake, and anti-vibration systems for automotive and industrial markets. Comparable rubber-based vibration isolation and mounting products to GMT, particularly in construction-equipment and commercial-vehicle segments.
Broad incumbents
- Trelleborg AB: Trelleborg is a large Swedish polymer engineering group with an anti-vibration solutions business serving rail, marine, and industrial customers. Overlaps with GMT in rubber-based vibration isolation but operates across far broader polymer end markets.
- Continental AG (ContiTech): Continental's ContiTech division manufactures rubber-based anti-vibration components, hoses, and conveyor belts for automotive and industrial customers. A broad incumbent with overlapping rubber-metal product categories though much larger and more diversified than GMT.
Emerging players
- Miba AG: Miba AG is an Austrian industrial supplier with bearings, friction, and sintered components divisions serving automotive, railway, and energy markets. Partial overlap with GMT in railway bearings and industrial drivetrain elastomer applications.
Regional players
- SGF GmbH (formerly Vibracoustic/SGF joint venture): SGF produces rubber-bonded metal components and anti-vibration systems primarily for European automotive and industrial customers. Comparable rubber-metal bushing technology to GMT, with overlapping railway and commercial-vehicle end markets.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
GMT Group social profiles
Digital presenceGMT Group compliance and trust
Trust signalCompliance6 records
GMT Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
GMT Group leadership team
Management profileNumber of profiles
Profiles6 records
GMT Group subsidiaries and ownership
Company hierarchySubsidiaries9 records
GMT Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
GMT Group M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about GMT Group
What does GMT Group do?
GMT Group manufactures and distributes custom-engineered and standardized rubber-metal anti-vibration components and systems, including suspension elements (air springs, conical springs, primary springs, chevron springs, roller springs, guidance springs), bearings (bushings, spherical bearings, ball joints, axle bearings, rotor/generator bearings), and mountings (engine, cabin, machine feet, decoupling elements, crane/pump/radio device mountings). The company develops proprietary elastomer compounds in-house and offers patented products such as the HYDRALL® hydraulic axle bearing and MERP axle shield. Components are sold as original equipment to industrial manufacturers in railway vehicles, construction machines, marine, general/drive engineering, defense technology, and renewable energy sectors.
Is GMT Group a public or private company?
GMT Group is a private company. It is classified as family owned and is currently operating.
When was GMT Group founded?
GMT Group was founded in 1968. It employs 501 to 1,000 people.
Where is GMT Group based?
GMT Group is headquartered in Bühl, Germany, in the Europe region.
How does GMT Group make money?
Three revenue lines are on record. Anti-vibration Component Manufacturing is the primary driver. The others are engineering and R&D Services and after-Sales Support and Testing.
Who are GMT Group's main competitors?
Direct peers on record are Vibracoustic, BOGE Elastmetall, Hutchinson, Sumitomo Riko, Parker LORD Corporation and Cooper Standard. Broad incumbents are Trelleborg AB and Continental AG (ContiTech). Miba AG is listed as an emerging player. SGF GmbH (formerly Vibracoustic/SGF joint venture) is listed as a regional player.
Does GMT Group have an API?
No public API is recorded for GMT Group.
What industry is GMT Group in?
GMT Group's product category is Anti-Vibration Components. Its primary akta.pro industry code is IMANALAD, Vibration Control & Anti-Vibration Products (Mounts, Bushings, Isolators), with a secondary code of IMANALAG, Molded & Extruded Industrial Rubber Parts (Custom Components). Its NAICS code is 326 and its SIC code is 3060.