mdexx
mdexx fan systems GmbH is a German industrial manufacturer designing and producing custom axial and radial fans, air technology systems, and sheet metal working services for railway vehicles, compressors, transformers, shipbuilding, and offshore applications worldwide.
- Company typePrivate
- Founded1961
- HeadquartersWeyhe, Germany
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What mdexx does
mdexx fan systems GmbH is a German industrial manufacturer specializing in custom-designed axial fans, radial fans, and complete air technology systems for demanding ventilation and heat-dissipation applications. The company serves enterprise customers in railway vehicles (German ICE, Chinese CRH3 high-speed trains, Belgian short-distance, Russian long-distance systems), compressor manufacturing, power transformers, industrial drive technology, shipbuilding, and offshore installations. Core products are engineered to bias-point specifications, with shock/vibration resistance, low-noise operation, ErP conformity, and compliance with sector-specific certifications including EN 15085-2 CL1 for rail welding and major maritime classification society approvals (ABS, DNV GL, RINA, LR, BV, CCS, KR).
The company combines high vertical integration with proprietary engineering capabilities. Production spans approximately 10,000 m² in Weyhe, Germany, covering punching, laser cutting, forming, machining, robotic and manual welding, painting, powder coating, and assembly. Engineering relies on CFD and FEM simulation tools and a 1,000 m² in-house ventilation testing laboratory for product validation. A catalog of over 5,000 products with key variants held in stock supports just-in-time quoted delivery (as fast as 12 hours post-order) and product service life cited up to 30 years. The company also offers standalone sheet metal working services to external industrial customers. The business traces to a 1961 Siemens subsidiary (Bremer Werke), became independent in 2009, and was acquired by Lafayette Mittelstand Capital in 2022. In 2025, the non-core winding goods unit (mdexx Magnetronic Devices GmbH) was divested to AQ Group, leaving fan systems and sheet metal working as the focused platform under mdexx holding GmbH.
Revenue mechanics are driven by custom-quotation-based hardware sales to enterprise OEMs, supported by an enterprise field sales model with named Key Account Managers covering DACH, MENA, and international territories. Marketing combines a direct sales force, a product configurator tool, and brand presence on Facebook, Instagram, and X. Customers are reached in 190+ countries, with manufacturing in Germany and China (Zhuzhou, via former mdexx Hunan Ltd. for winding goods), and a sales entity in Poland. The company maintains ISO 9001, 14001, and 50001 certifications, EN 15085-2 CL1 and ISO 3834-2 welding certifications, UL/CSA product certification, and a 2025 EcoVadis sustainability rating.
mdexx firmographics
Firmographics- Name
- mdexx
- Legal name
- mdexx holding GmbH
- Website
- https://mdexx.com
- Company type
- Private
- Founded year
- 1961
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- mdexx fan systems GmbH is a German industrial manufacturer designing and producing custom axial and radial fans, air technology systems, and sheet metal working services for railway vehicles, compressors, transformers, shipbuilding, and offshore applications worldwide.
- Ownership category
- akta.pro rank
mdexx industry classification
Industry- Product category
- Industrial Ventilation Fans
- NAICS
- Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)
- SIC
- Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)
- akta.pro primary industry
- Fans, Blowers & Ventilation Units (Supply/Exhaust/Inline) (IMADANAB)
Keywords
Where mdexx is headquartered
LocationHeadquarters
- HQ city
- Weyhe
- HQ country
- Germany
- HQ region
- Europe
Offices3 records
Markets served
mdexx business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Industrial Fan Sales: Design, manufacture and sale of customized axial fans, radial fans, and air technology systems for industrial applications including railway vehicles, compressors, power transformers, drive technology, and shipbuilding.
- Sheet Metal Working Services: Custom sheet metal processing services including nibbling, laser cutting, forming, mechanical machining, welding, coating, and assembly for industrial customers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom quotation-based pricing |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels3 records
mdexx product offering
Product offeringCore offering
mdexx designs, manufactures, and sells custom-engineered axial fans, radial fans, and complete air technology systems that deliver ventilation and heat dissipation for railway vehicles, compressors, power transformers, industrial drive technology, shipbuilding, energy distribution, and offshore installations. The company complements its fan portfolio with custom sheet metal fabrication services (laser cutting, forming, welding, coating, assembly) for industrial customers across more than 190 countries.
Product overview
mdexx is a German industrial manufacturing company specializing in axial fans, radial fans, diagonal fans, and air technology systems. The company operates through two main entities: mdexx fan systems GmbH (fans and sheet metal working) and mdexx Magnetronic Devices GmbH (inductive components, now sold to AQ Group). The product portfolio centers on industrial ventilation solutions for railways, compressors, shipbuilding, drive technology, energy supply, process technology, and offshore applications. Sheet metal working services complement the manufacturing capabilities. Products are designed, constructed, and manufactured in-house with a high level of vertical integration. The company serves customers in over 190 countries worldwide.
Differentiator
Problem solved
Functional benefit
Products and services
- Axial Fans High-performance axial fans that deliver reliable ventilation and heat dissipation in railway vehicles, compressors, power transformers, drive technology, and shipbuilding. Characterized by high power density in operating points with high volume flow and low to medium pressure requirements.
- Radial Fans Industrial radial fans meeting latest requirements from global markets, including ErP conformity, increased efficiency, performance optimization, and acoustic spectrum reduction. Used as drive motor fans, oil cooler fans, converter fans, and brake resistor fans.
- Air Technology Systems Complete air technology systems combining axial fans, radial fans, and diagonal fans with full engineering, construction, and manufacturing capabilities, delivered as customized solutions for industrial buyers with demanding cooling and ventilation requirements.
- Sheet Metal Working Custom sheet metal fabrication services covering nibbling, laser cutting, forming, mechanical machining, welding (DIN EN ISO 15085), coating, and assembly, delivered to industrial customers and supported by more than 50 years of manufacturing experience on a ~10,000 m² production area.
- Online Fan Configurator Interactive online configurator allowing customers to specify and request quotes for custom fan configurations, complementing the direct field-sales channel.
Quantifiable outcome
- Just-in-time delivery within 12 hours after order placement for some products
- +2 more outcomes
Companies that use mdexx
Customer profileNamed customers5 records
Segments6 records
Ideal customer profiles2 records
mdexx technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
mdexx partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- AQ Groupformer subsidiary transactionAQ Group acquired mdexx Magnetronic Devices GmbH in 2025. mdexx Magnetronic Devices GmbH was the winding goods business unit of mdexx. The fan systems business (mdexx fan systems GmbH) remains under the mdexx holding GmbH umbrella.
Scale indicators4 records
Recent moves9 records
Expansion highlights6 records
mdexx competitors and assessment
Company assessmentDirect peers
- Ziehl-Abegg: German-based manufacturer of axial and radial fans, blowers and motors for HVAC, rail, elevator and industrial applications. Closest geographic and product peer to mdexx with overlapping rail-certified custom fan capabilities.
- Rosenberg Ventilatoren: German industrial fan manufacturer offering axial, radial and tangential fans for HVAC, rail and industrial applications. Direct competitor in the German Mittelstand custom-engineered fan market with similar vertical integration.
- Nicotra Gebhardt: Italian-headquartered manufacturer of centrifugal and axial fans for industrial, commercial and process ventilation. Direct peer in industrial fans with overlapping custom-engineering and OEM-supply model.
- Multi-Wing: Danish manufacturer of axial fan impellers and fan units for industrial cooling, ventilation and engine applications. Comparable as a specialized axial fan supplier into marine, power and industrial drive cooling.
- Cincinnati Fan: US manufacturer of industrial fans and blowers including axial and centrifugal designs for OEM and industrial users. Direct peer in custom industrial axial/radial fans with similar OEM-supply model.
- Loren Cook Company: US manufacturer of commercial and industrial fans, blowers and related air-handling equipment. Comparable as a private industrial fan specialist serving similar OEM and industrial end markets.
- Elta Group (Ventmeca): UK-based specialist group of fan and motor brands serving commercial, industrial and HVAC applications. Comparable as an industrial fan specialist with custom-engineering and OEM design-in approach.
Broad incumbents
- ebm-papst: Global market leader in fans and motors across ventilation, automotive, IT and industrial segments. Comparable as a broad incumbent offering custom industrial fans for rail, drives, and HVAC, but at vastly greater scale and product breadth.
- Howden: Global specialist in air and gas handling equipment including industrial fans and blowers for power, mining, oil & gas and rail. Comparable as a broad incumbent supplying custom industrial fans into many of the same verticals as mdexx, particularly power transformers and drive technology.
- Greenheck: US-based broad manufacturer of ventilation, air movement and air conditioning equipment. Comparable as a broad incumbent in industrial and commercial fans though primarily focused on commercial HVAC rather than railway.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
mdexx social profiles
Digital presencemdexx compliance and trust
Trust signalCompliance16 records
mdexx financial estimates
Financial estimateRevenue estimate
Valuation estimate
mdexx leadership team
Management profileNumber of profiles
Profiles11 records
mdexx subsidiaries and ownership
Company hierarchySubsidiaries3 records
mdexx funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
mdexx 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 mdexx
What does mdexx do?
mdexx designs, manufactures, and sells custom-engineered axial fans, radial fans, and complete air technology systems that deliver ventilation and heat dissipation for railway vehicles, compressors, power transformers, industrial drive technology, shipbuilding, energy distribution, and offshore installations. The company complements its fan portfolio with custom sheet metal fabrication services (laser cutting, forming, welding, coating, assembly) for industrial customers across more than 190 countries.
Is mdexx a public or private company?
mdexx is a private company. It is classified as private equity controlled and is currently operating.
When was mdexx founded?
mdexx was founded in 1961. It employs 51 to 100 people.
Where is mdexx based?
mdexx is headquartered in Weyhe, Germany, in the Europe region.
How does mdexx make money?
Two revenue lines are on record. Industrial Fan Sales are the primary driver. The others are sheet Metal Working Services.
Who are mdexx's main competitors?
Direct peers on record are Ziehl-Abegg, Rosenberg Ventilatoren, Nicotra Gebhardt, Multi-Wing, Cincinnati Fan, Loren Cook Company and Elta Group (Ventmeca). Broad incumbents are ebm-papst, Howden and Greenheck.
Does mdexx have an API?
No public API is recorded for mdexx.
What industry is mdexx in?
mdexx's product category is Industrial Ventilation Fans. Its primary akta.pro industry code is IMADANAB, Fans, Blowers & Ventilation Units (Supply/Exhaust/Inline). Its NAICS code is 333413 and its SIC code is 3564.