Witt & Sohn

What Witt & Sohn does

Witt & Sohn AG is a privately held German manufacturer of industrial high-performance fans, headquartered in Pinneberg and operating as the third-generation family-owned parent of the Witt Group. Founded in 1945 as a specialist supplier to the German merchant shipbuilding industry, the company has built an 80-plus-year track record supplying axial flow fans, centrifugal fans, jet fans, silencers, and accessories to safety-critical infrastructure including road and metro tunnels, naval and commercial vessels, nuclear and conventional power plants, offshore oil and gas platforms, and industrial process plants. Core technology centers on a modular fan architecture with proprietary designs such as the patented Banana Jet® (delivering 20-50% more effective thrust in tunnels) and the Christmas Tree® steel-skeleton aluminum impeller (rated to 400°C/2h), supported by an in-house AMCA-accredited testing facility and 5% of turnover reinvested in R&D.

The company's go-to-market is a consultative enterprise field-sales motion targeting specialized industrial customers. Sales are quote-based with average production lead times of 3-6 weeks and are routed through wholly-owned subsidiaries in Germany (Witt Contracting), Switzerland (Meidinger AG for ATEX fans), the UK (Fan Systems Group and Alldays Peacock), Sweden (FläktComp Sweden), and a joint venture in India (Witt India Pvt. Ltd.), supplemented by a global agent network covering 60+ countries. Approximately 85% of products are exported outside Germany. Revenue is generated primarily from custom-engineered equipment sales, with a secondary recurring stream from service, spare parts, commissioning, installation, and training via Witt Contracting GmbH, plus a smaller rental/used-fan marketplace called the Fan Market.

Witt holds an unusually deep regulatory and certification footprint for its size, including ISO 9001, 14001, 45001, 19443 (nuclear), KTA 1401 (held continuously since 1976), EN 12101-3 smoke exhaust certification, AMCA laboratory accreditation, and type approvals from DNV, Lloyd's Register, ABS, and Bureau Veritas. With 101-250 employees, 100,000+ cumulative industrial projects, 1,200+ tunnel projects, 19,000+ ships including 900+ naval vessels, 58+ nuclear power plants, and 100+ offshore installations in its reference base, Witt occupies a defensible niche as a small, technically specialized supplier to the world's most demanding ventilation applications.

Name

Witt & Sohn

Legal name

Witt & Sohn AG

Website

https://wittfan.de

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

101–250 employees

Short description

Witt & Sohn AG is a privately held, third-generation German manufacturer of custom-engineered axial and centrifugal fans for safety-critical applications including tunnels, naval and commercial ships, nuclear power plants, offshore platforms, and industrial plants, exporting to 60+ countries.

Ownership category

akta.pro rank

Product category

Industrial Fans & Ventilation Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG)

akta.pro secondary industry

Fans, Blowers & Ventilation Units (Supply/Exhaust/Inline) (IMADANAB)

Keywords

• Industrial fan manufacturing
• Axial flow fans
• Centrifugal fans
• Tunnel ventilation fans
• Marine ventilation equipment

Headquarters

HQ city

Pinneberg

HQ country

Germany

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Fan Sales: Custom-engineered axial flow fans, centrifugal fans, and jet fans sold directly to industrial customers. Products are tailored to specific applications in tunnel ventilation, shipbuilding, nuclear power, offshore, and industrial plants. Revenue generated from equipment sales with varying lead times of 3-6 weeks average.
2. Service and Maintenance: Witt Contracting GmbH provides long-term service programs including spare parts supply, maintenance, revisions, commissioning, installation, and training. Service hotline available for ongoing customer support.
3. Fan Market (Rental/Used): Rental and sale of used jet fans through the Fan Market program. Jet fans available in two performance classes, completely ready for operation with speed control via frequency converter.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Witt & Sohn AG manufactures industrial high-performance axial flow fans, centrifugal fans, and jet fans for ventilation, air movement, and noise control applications. Products are custom-engineered for demanding sectors including tunnel and metro ventilation, shipbuilding, nuclear and conventional power plants, offshore oil and gas platforms, and industrial plants. Approximately 85% of production is exported outside Germany, with sales supported by a network of subsidiaries and agents in over 60 countries.

Product overview

Witt & Sohn is a leading industrial fan manufacturer offering one of the most comprehensive fan portfolios globally. The core product lineup includes Axial Flow Fans (for tunnel, shipbuilding, power plant, and offshore applications), Centrifugal Fans (for industrial process applications), Jet Fans (for longitudinal tunnel ventilation), and the patented Banana Jet® (a specialized high-efficiency jet fan generating 20-50% more thrust than conventional designs). Supporting offerings include Sound Reduction/Silencers (cylindrical, rectangular attenuators, and enclosures), Fan Accessories (ATEX protection, dampers, monitoring systems), and the Fan Market (rental/used equipment service). A proprietary Fan Selection Tool enables customer pre-selection and sound calculations. The company serves diverse industries including tunneling, shipbuilding, industrial plants, offshore, renewable energy, power plants, and environmental simulation, with approximately 85% of products exported internationally.

Differentiator

Problem solved

Functional benefit

Brands

• Witt Contracting: Service subsidiary offering maintenance, spare parts, commissioning, and training services for fans.
• Christmas Tree®
• Banana Jet®

Products and services

• Axial Flow Fans High-performance axial flow fans with multiple impeller types (P, N, M, X, Y), designed for tunnel ventilation, shipbuilding, power plants, and offshore installations. Inlet sizes from 250 to 3550 mm and motor frame sizes from 63 to 710, certified to EN 12101-3 for smoke extraction (F200, F300, F400).
• Centrifugal Fans High-performance centrifugal fans with modular impeller system in casing types RNZ, LRZ, PRZ, MRZ, HRZ, SRZ, TRZ for applications in waste incineration, steel mills, cement, mining, and process plants. Inlet sizes from 63 to 2500 mm with efficiencies up to 85%.
• Jet Fans
• Banana Jet® Patented jet fan with bent outlet directing airflow toward the center of the tunnel, generating 20-50% more effective thrust than conventional jet fans. Reduces tunnel installation loss factors and enables significant cost savings in tunnel ventilation systems.
• Sound Reduction/Silencers
• Fan Accessories
• Fan Market
• Witt Contracting Service Programs

Quantifiable outcome

• Banana Jet® generates 20-50% more effective thrust than traditional jet fans
• +6 more outcomes

Named customers12 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

13 partnerships are on record, tiered core and minor.

• Witt India Pvt. Ltd.coreStrategic or Co-development Partner · 1 January 2008Joint venture manufacturing facility in Hyderabad, India. Enables localized production and support for Indian and regional markets.
• Alldays Peacock Ltd.coreChannel Partner/ Reseller/ Distributor · 1 January 2005UK-based division of Fan Systems Group, operating from Halifax. Part of Witt Group since 2005.
• PSB UK LimitedminorChannel Partner/ Reseller/ Distributor · 1 January 2005UK division operating as part of Fan Systems Group.
• FläktComp Sweden ABcoreStrategic or Co-development Partner · 1 January 2003Swedish subsidiary based in Växjö. Part of Witt Group since 2003.
• LF-Ventilation (Denmark)minorStrategic or Co-development Partner · 1 January 1998Danish fan company that joined the Witt Group in 1998.
• Meidinger AGcoreStrategic or Co-development Partner · 1 January 1997Swiss subsidiary specializing in explosion-proof ATEX fans. Produces zone zero fans for biogas and hazardous environments. Part of Witt Group since 1997.
• Canadian LicenseesminorOEM/ Whitelabel/ Licensing Partner · 1 January 1994First licenses granted to Canada in 1994 for fan manufacturing.
• Fan Systems Group Ltd.coreStrategic or Co-development Partner · 1 January 1993UK subsidiary based in Halifax, West Yorkshire. Part of Witt Group since 1993.
• South Korean LicenseesminorOEM/ Whitelabel/ Licensing Partner · 1 January 1992First licenses granted to South Korea in 1992 for fan manufacturing.
• Japanese LicenseesminorOEM/ Whitelabel/ Licensing Partner · 1 January 1968First licenses granted to Japan in 1968 for fan manufacturing.
• MPA BraunschweigcoreTechnology or IntegrationMaterial testing laboratory conducting heat tests and certifications for EN 12101-3 compliance (smoke extraction fans).
• CTICM (France)coreTechnology or IntegrationCentre Technique Industriel de la Construction Métallique - independent institute in Metz, France for EN 12101-3 certification testing.
• TÜV NordcoreTechnology or IntegrationGerman technical inspection authority providing ISO 9001, 14001, 45001, 19443 certification audits.

Scale indicators12 records

Recent moves14 records

Expansion highlights6 records

Direct peers

• Systemair: Systemair is a Swedish manufacturer of ventilation fans and air handling units with a global distribution network. It competes with Witt in industrial and commercial ventilation, particularly in standardized fan products, though with less specialization in nuclear and high-temperature applications.
• Cincinnati Fan: Cincinnati Fan is a US manufacturer of industrial fans and blowers for process and air handling applications. It is comparable to Witt in centrifugal and axial fan product categories, primarily serving North American industrial markets.
• Ziehl-Abegg: Ziehl-Abegg is a German manufacturer of fans, motors, and drive technology serving HVAC, tunnel, and industrial markets. As a fellow German industrial fan specialist, it is directly comparable to Witt & Sohn in product type and engineering approach, with overlapping presence in tunnel and process ventilation.
• Howden Group: Howden is a UK-headquartered global manufacturer of industrial fans, blowers, and air handling equipment serving mining, power, oil & gas, and tunneling. It is one of the closest direct competitors to Witt & Sohn in heavy-duty industrial and process ventilation, with overlapping product lines in axial and centrifugal fans and similar end-market exposure.
• Greenheck Group: Greenheck is a US-based leading manufacturer of commercial and industrial fans, dampers, and air handling equipment. It is a direct competitor in the industrial and commercial fan segment, particularly strong in North America where Witt relies on agents and licensees.
• FläktGroup: FläktGroup is a European (Sweden/Germany) HVAC and air handling equipment manufacturer serving commercial, industrial, and tunnel ventilation markets. It competes directly with Witt in tunnel, marine, and industrial ventilation with comparable product scope and certifications.
• Loren Cook Company: Loren Cook is a US manufacturer of commercial and industrial fans, blowers, and ventilation equipment. It competes with Witt in industrial axial and centrifugal fan markets, though with greater focus on standardized commercial HVAC and less on specialty nuclear/marine certifications.
• TLT-Turbo: TLT-Turbo is a German manufacturer of industrial fans and ventilation systems specializing in power plants, mining, cement, and process industries. It competes directly with Witt in heavy-duty industrial fan applications, particularly in power generation and high-temperature environments.
• Comefri: Comefri is an Italian manufacturer of industrial fans and blowers for HVAC, process, and OEM applications. It is a direct peer in the European industrial fan market, with overlapping product lines in axial and centrifugal fans for industrial and ventilation applications.

Emerging players

• Casals Ventilació Industrial: Casals is a Spanish manufacturer of industrial fans and ventilation equipment with growing presence in industrial and process ventilation markets. While smaller in scale, it competes with Witt in European industrial fan segments and represents an emerging competitor in standardized fan offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/wittfan
• LinkedInlinkedin.com/company/witt-und-sohn

Compliance13 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries9 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 Witt & Sohn