Weidmann Holding
Weidmann Holding AG is a Swiss family-owned industrial manufacturer founded in 1877, producing transformer insulation materials, high-precision medical components, and cellulose-based sustainable materials through three business areas serving customers in more than 80 countries.
- Company typePrivate
- Founded1877
- HeadquartersRapperswil, Switzerland
- Headcount1,001–5,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Weidmann Holding does
Weidmann Holding AG is a Swiss, family-owned industrial manufacturer headquartered in Rapperswil, Switzerland, founded in 1877 and still controlled by the Tschudi family after more than a century. The company operates three business areas from eighteen facilities in ten countries, employing roughly 3,663 people and generating CHF 573 million in net sales in 2025 across customers in more than 80 countries.
Weidmann Electrical Technology is the dominant business, contributing CHF 504 million (88 percent) of 2025 net sales. It produces Transformerboard, the hot press-dried cellulose insulation board invented at the company in 1937 that remains the global standard for high-voltage power transformer insulation, alongside Maplex board and paper products, specialty crepe and diamond-dotted papers, and ultra-high voltage insulation components manufactured in China, Mexico, Brazil, the USA, the UK, Croatia, Türkiye, and Ukraine. Weidmann Medical Technology (CHF 69 million, 12 percent of 2025 sales) supplies high-precision injection-molded plastic components, including nano-structured lab-on-a-chip surfaces, to medical device and pharmaceutical customers from cleanroom facilities in Switzerland, Mexico, Germany, and the USA under ISO 13485. Weidmann Fiber Technology, the newest business area launched in 2016, produces microfibrillated cellulose (MFC) at a dedicated Rapperswil plant and is commercializing the Celova line of biodegradable alternatives to microplastics for packaging and personal care.
Revenue is generated almost entirely through direct B2B sales of customized industrial components priced on a quote basis under multi-year contracts, with no public list pricing. The go-to-market combines an enterprise field sales force embedded near major transformer and medical OEMs, regional manufacturing for proximity-based supply, license partnerships (e.g., Govik Electricals in India), and participation in industry events (Cigre, Middle East Energy, ADLM). The company is privately held, family-financed, and currently executing a CHF 200 million investment program to expand Electrical Technology capacity in the Americas.
Weidmann Holding firmographics
Firmographics- Name
- Weidmann Holding
- Legal name
- Weidmann Holding AG
- Website
- https://weidmann-group.com
- Company type
- Private
- Founded year
- 1877
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Weidmann Holding AG is a Swiss family-owned industrial manufacturer founded in 1877, producing transformer insulation materials, high-precision medical components, and cellulose-based sustainable materials through three business areas serving customers in more than 80 countries.
- Ownership category
- akta.pro rank
Weidmann Holding industry classification
Industry- Product category
- Industrial Electrical Insulation Materials
- NAICS
- Converted Paper Product Manufacturing (3222)
- SIC
- Paper Mills (2621), Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820)
- akta.pro primary industry
- Cellulose-Based Biodegradable Materials (cellulose films, fibers, derivatives) (IMAEAOAE)
- akta.pro secondary industries
- Nanocellulose & Cellulose Derivatives (CNC/CNF, MCC, ethers/esters) (IMAMALAD), Compostable & Bio-Based Packaging (PLA/PHA, Starch Blends, Cellulose Films) (IMALAMAB), Specialty Pulp (Microfibrillated/Nanocellulose, Filter/Technical Grades) (IMAMADAE)
Keywords
Where Weidmann Holding is headquartered
LocationHeadquarters
- HQ city
- Rapperswil
- HQ country
- Switzerland
- HQ region
- Europe
Offices13 records
Markets served
Weidmann Holding 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
- Electrical Technology Products: Sale of transformer insulation materials including Transformerboard, electrical papers, insulation components, and related products. This is the largest business area contributing CHF 504 million in 2025 (88% of net sales).
- Medical Technology Components: Manufacturing and sale of high-precision injection-molded components for medical and pharmaceutical applications. Contributed CHF 69 million in 2025 (12% of net sales).
- Fiber Technology Solutions: Sale of microfibrillated cellulose (MFC) and sustainable fiber-based products including Celova biodegradable materials. Part of the Fiber Technology division under Electrical segment.
- Engineering and Technical Services: Technical services related to transformer diagnostics, oil analysis, and monitoring services (though InsuLogix monitoring product line was sold to Megger in 2023).
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | B2B enterprise pricing with custom quotes |
Go-to-market motion3 records
Distribution channels3 records
Marketing channels5 records
Weidmann Holding product offering
Product offeringCore offering
Weidmann manufactures and sells engineered cellulose-based products across three business areas: transformer insulation materials (Transformerboard, electrical papers, and insulation components for high-voltage power transformers); high-precision injection-molded plastic components for medical and pharmaceutical devices; and cellulose-based sustainable materials such as microfibrillated cellulose (MFC) and Celova biodegradable alternatives to microplastics. Customers are primarily industrial enterprises including transformer manufacturers, medical device companies, and consumer/packaging firms in more than 80 countries.
Product overview
Weidmann Holding operates three distinct business areas: Electrical Technology (transformer insulation solutions including Transformerboard, insulation components, Maplex Board/Paper), Medical Technology (high-precision injection-molded medical components), and Fiber Technology (cellulose-based solutions including microfibrillated cellulose and Celova biodegradable materials). The company is a family-owned enterprise founded in 1877, serving customers in over 80 countries with products shipped annually exceeding 5 million units.
Differentiator
Problem solved
Functional benefit
Brands
- Transformerboard: Hot press-dried insulation board for high-voltage power transformers, invented by Weidmann in 1937 and still the global standard
- Maplex Board
- Maplex Paper
- Celova
- InsuLogix
Products and services
- Transformerboard Hot press-dried cellulose-based insulation board used as the global standard for insulating high-voltage power transformers; produced in large-format machines and supplied to transformer manufacturers worldwide.
- Insulation Components
Quantifiable outcome
- Trusted partner to customers in more than 80 countries around the world
- +2 more outcomes
Companies that use Weidmann Holding
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles3 records
Weidmann Holding technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Weidmann Holding partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Govik Electricals Pvt. Ltd.regionalLicense partnership established in 1999 with Govik Electricals in Mumbai, India, to support local fabrication of insulation components and strengthen market access in the region.
Scale indicators9 records
Recent moves28 records
Expansion highlights6 records
Weidmann Holding competitors and assessment
Company assessmentBroad incumbents
- Hitachi Energy: Global leader in power transformers and grid technologies. As a major transformer OEM, it is both a customer and adjacent supplier of insulation solutions, providing direct market context for Weidmann's insulation materials in utility and industrial applications.
- ABB: Swiss-headquartered global leader in electrification and motion, including major power transformer manufacturing. Represents a key transformer OEM customer relationship for Weidmann while also being a benchmark for grid-side demand growth.
- Mitsubishi Electric Corporation: Japanese manufacturer of power transformers, transmission systems, and related electrical equipment. Major transformer OEM that purchases insulation materials comparable to Weidmann's Electrical Technology offerings, especially in Asia-Pacific markets.
- Gerresheimer AG: German manufacturer of high-precision glass and plastic products for the pharmaceutical and medical device industries. Closely comparable to Weidmann Medical Technology's high-precision injection-molded components business in target customer base and regulatory requirements.
- Stora Enso Oyj: Finnish-Swedish forest products company producing specialty pulp, biocomposites, and renewable packaging solutions. Comparable in cellulose/biomaterials capability and Fiber Technology / Celova market overlap as Weidmann expands sustainable materials.
- 3M Company: US diversified industrial conglomerate with historical electrical insulation materials products serving transformer and electronics applications. Provides competitive context as a much larger diversified peer with overlapping electrical insulation capabilities.
Direct peers
- Von Roll Holding AG: Swiss-based competitor in transformer insulation systems, producing insulation materials, mica products, and casting resins for the transformer industry. Directly competes with Weidmann's Electrical Technology Business Area for transformer OEM customers globally.
- West Pharmaceutical Services: US-headquartered global manufacturer of high-precision components and delivery systems for pharmaceutical and medical device applications. Closely comparable in medical technology customer base, regulatory positioning (ISO 13485), and precision manufacturing capabilities.
- Borregaard ASA: Norwegian specialty biorefining company producing microfibrillated cellulose (MFC) and lignin-based biopolymers. Direct peer in Weidmann Fiber Technology's MFC business and a benchmark for commercializing cellulose-based specialty materials.
- Krempel GmbH: German manufacturer of electrical insulation materials including Transformerboard equivalent products, crepe papers, and laminated insulation boards. Direct competitor to Weidmann's core Transformerboard and Maplex Board product lines for transformer OEMs.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights6 records
Customer concentration
Weidmann Holding social profiles
Digital presenceWeidmann Holding compliance and trust
Trust signalCompliance11 records
Weidmann Holding financial estimates
Financial estimateRevenue estimate
Valuation estimate
Weidmann Holding leadership team
Management profileNumber of profiles
Profiles11 records
Weidmann Holding subsidiaries and ownership
Company hierarchySubsidiaries10 records
Weidmann Holding funding detail
Funding detailFunding overview
Funding rounds1 record
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Weidmann Holding 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 Weidmann Holding
What does Weidmann Holding do?
Weidmann manufactures and sells engineered cellulose-based products across three business areas: transformer insulation materials (Transformerboard, electrical papers, and insulation components for high-voltage power transformers); high-precision injection-molded plastic components for medical and pharmaceutical devices; and cellulose-based sustainable materials such as microfibrillated cellulose (MFC) and Celova biodegradable alternatives to microplastics. Customers are primarily industrial enterprises including transformer manufacturers, medical device companies, and consumer/packaging firms in more than 80 countries.
Is Weidmann Holding a public or private company?
Weidmann Holding is a private company. It is classified as family owned and is currently operating.
When was Weidmann Holding founded?
Weidmann Holding was founded in 1877. It employs 1,001 to 5,000 people.
Where is Weidmann Holding based?
Weidmann Holding is headquartered in Rapperswil, Switzerland, in the Europe region.
How does Weidmann Holding make money?
Four revenue lines are on record. Electrical Technology Products are the primary driver. The others are medical Technology Components, fiber Technology Solutions and engineering and Technical Services.
Who are Weidmann Holding's main competitors?
Broad incumbents on record are Hitachi Energy, ABB, Mitsubishi Electric Corporation, Gerresheimer AG, Stora Enso Oyj and 3M Company. Direct peers are Von Roll Holding AG, West Pharmaceutical Services, Borregaard ASA and Krempel GmbH.
Does Weidmann Holding have an API?
No public API is recorded for Weidmann Holding.
What industry is Weidmann Holding in?
Weidmann Holding's product category is Industrial Electrical Insulation Materials. Its primary akta.pro industry code is IMAEAOAE, Cellulose-Based Biodegradable Materials (cellulose films, fibers, derivatives), with a secondary code of IMAMALAD, Nanocellulose & Cellulose Derivatives (CNC/CNF, MCC, ethers/esters). Its NAICS code is 3222 and its SIC code is 2621.