Winkler Ag
Winkler AG, founded 1979 in Germany, manufactures flexible electric heating solutions and electronic temperature controllers for industrial and laboratory applications, serving semiconductor, automotive, rail, chemical, explosion-protection (ATEX), and laboratory customers across Europe, North America, and North Africa.
- Company typePrivate
- Founded1979
- HeadquartersHeidelberg, Germany
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Winkler Ag does
Winkler AG is a German manufacturer of flexible electric heating solutions and electronic temperature controllers, founded in 1979 and headquartered (since early 2026) in St. Leon-Rot near Heidelberg, with registered seat in Heidelberg and a private Aktiengesellschaft (Aktiengesellschaft) status majority-owned by employees and management. The company designs and manufactures its products in-house across three production sites — Heidelberg (engineering, complex individual items), Walldorf (service and test center), and Tunisia (large-series trace heating, ~150 employees) — and operates across at least six industry verticals: semiconductor, explosion protection (ATEX), automotive and engine testing, railroad, chemical and thermal processes, and laboratory/research. Its core product portfolio spans heated hoses and analysis lines, Pilz® laboratory heating mantles, container heaters (drum, IBC, gas cylinder, including the rapidLine series), electronic temperature controllers (wall-mounted single/multi-channel, in-line, multi-channel cabinets), ATEX-certified EX products, heating mats and jackets, and silicone heating elements, supported by proprietary technologies such as the Quick-Lock quick-release system, dualSensor temperature control, and a fully digital 3D-model-based engineering process with in-house 3D-printed prototypes.
Winkler AG makes money primarily through one-time sales of both custom-engineered and standard catalog heating products, complemented by an after-sales service stream covering express and warranty repairs, conversions, upgrades, on-site commissioning, and VDE702 acceptance tests. Pricing is consultation-based with no published price list; go-to-market combines six verticalized direct sales divisions in Germany with a European dealer network for standard ATEX drum heaters and laboratory mantles, and dedicated channel partners for UK/Ireland semiconductor sales (Semimed Thermal Ltd.) and German laboratory sales (Neybo GmbH). Direct certification access to North America was opened via UL/CSA approval of the L-300, L-400, and W-700 controller families in October 2024.
The company employs more than 200 people across the three sites, with certified quality management (ISO 9001), ATEX manufacturing certification, and EN45545 rail compliance serving as regulatory entry barriers. Following the April 2023 asset-deal acquisition of Mohr & Co Laborhandelsgesellschaft, a March 2026 CEO succession to Daniel Ernst, and a major 2026 relocation to a consolidated facility in St. Leon-Rot, Winkler is positioned for continued expansion of its Tunisia manufacturing base and direct entry into the North American controller market.
Winkler Ag firmographics
Firmographics- Name
- Winkler Ag
- Legal name
- Winkler AG
- Website
- https://winkler.org
- Company type
- Private
- Founded year
- 1979
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Winkler AG, founded 1979 in Germany, manufactures flexible electric heating solutions and electronic temperature controllers for industrial and laboratory applications, serving semiconductor, automotive, rail, chemical, explosion-protection (ATEX), and laboratory customers across Europe, North America, and North Africa.
- Ownership category
- akta.pro rank
Winkler Ag industry classification
Industry- Product category
- Industrial Heating Equipment
- NAICS
- Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)
- SIC
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)
- akta.pro primary industry
- Refrigeration Components & Controls (Compressors, Valves, Sensors) (IMAHAKAH)
Keywords
Where Winkler Ag is headquartered
LocationHeadquarters
- HQ city
- Heidelberg
- HQ country
- Germany
- HQ region
- Europe
Offices4 records
Markets served
Winkler Ag business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Custom Heating Solutions: Bespoke flexible electric heating solutions developed and manufactured to customer specifications for both large series and individual items. Application-specific solutions for explosion protection, semiconductor, automotive, and chemical industries represent the core revenue stream. Products include heated hoses, heating mantles, heating jackets, container heaters, and silicone heating elements.
- Temperature Controllers: Standalone temperature controller product line including wall-mounted single/multi-channel controllers, in-line compact controllers (L-series), and 6/12-channel control cabinets. Controllers designed for industrial temperature regulation across diverse applications.
- ATEX/Explosion Protection Products: Certified ATEX heating solutions including heated analysis lines, heating hoses, heating jackets/mats, container heaters, industrial heating mantles, and temperature controllers/limiters for use in potentially explosive atmospheres. Represents specialized high-value product category.
- Repair, Conversion and Upgrade Services: Comprehensive after-sales service including express repairs, warranty-covered repairs, product conversions and upgrades. Component-level repair down to chip level with full functional testing. Includes on-site commissioning, diagnostics, and VDE702 acceptance tests.
Go-to-market motion3 records
Distribution channels5 records
Marketing channels6 records
Winkler Ag product offering
Product offeringCore offering
Winkler AG develops and manufactures flexible electric heating solutions and temperature controllers for industrial and laboratory applications. The portfolio includes heated hoses and analysis lines, Pilz® laboratory heating mantles, container heaters (drum, IBC, gas cylinder), temperature controllers (single- and multi-channel, in-line, control cabinets), ATEX-certified explosion-protected products, heating mats and jackets, and silicone heating elements — sold as standard catalog items or custom-engineered bespoke solutions.
Product overview
Winkler Ag offers a comprehensive portfolio of flexible electric heating solutions for industrial applications. The product range centers on temperature control systems including heating hoses and analysis lines, Pilz® laboratory heating mantles, container heaters (drum heaters, IBC heaters, gas cylinder heaters), temperature controllers, ATEX-certified explosion protection products, heating mats and jackets, and silicone heating elements. The company develops and manufactures all products in-house, serving both large series and custom individual solutions for industries including semiconductor, automotive, chemical processing, and railroad technology.
Differentiator
Problem solved
Functional benefit
Products and services
- Heating hoses and analysis lines
- Pilz® Heating Mantles
- Container heaters
- Temperature controllers
- ATEX explosion-protected products
- Heating mats and heating jackets
- Silicone heating elements
Quantifiable outcome
- 20% faster heating achieved with dualSenor technology in rapidLine drum heaters compared to previous models
- +3 more outcomes
Companies that use Winkler Ag
Customer profileNamed customers4 records
Segments6 records
Ideal customer profiles6 records
Winkler Ag technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Winkler Ag partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered minor and core.
- SEMIminorWinkler AG became a member of SEMI (semiconductor industry leading association) in April 2025. SEMI connects 1.5 million professionals across the semiconductor and electronics design and manufacturing chain, organizes SEMICON trade shows, and provides technology communities, standards, and market intelligence. Membership provides networking, industry information, and collaboration opportunities within the semiconductor ecosystem.
- Semimed Thermal Ltd.minorSemimed Thermal Ltd. operates in cooperation with Winkler AG as the designated sales partner for semiconductor customers in UK and Ireland. Stuart Johnson serves as Sales Semicon UK & Ireland through this partnership.
- Neybo GmbHminorNeybo GmbH operates in cooperation with Winkler AG as the designated sales partner for laboratory and container heating equipment sales in Germany. Nicolas Zenner serves as the sales contact representing this partnership.
- Mohr & Co Laborhandelsgesellschaft (Asset Deal)coreMohr & Co was transferred to Winkler AG on April 1, 2023 through an asset deal, with business activities continuing under the Mohr & Co brand. Mohr & Co brought over 40 years of expertise in heating technology consulting for industry and laboratories, expanding Winkler's laboratory portfolio and customer base. Heidelberg office now handles combined operations.
- wsp design Werbeagentur GmbHminorwsp design is credited for concept and design of Winkler AG's website and marketing materials, as stated in the company imprint.
- SCHITTLY web.technik GmbHminorSCHITTLY web.technik GmbH is credited for technical realization and programming of Winkler AG's website, as stated in the company imprint.
Scale indicators7 records
Recent moves8 records
Expansion highlights5 records
Winkler Ag competitors and assessment
Company assessmentDirect peers
- BriskHeat: US-based manufacturer of flexible heating solutions including heating tapes, jackets, and drum heaters. Closely comparable to Winkler AG's container heater and silicone heating element lines.
- Backer Hotwatt: US manufacturer of electric heating elements, cartridge heaters, and process heaters. Direct peer in industrial heating-element manufacturing with similar OEM and custom-product mix.
- Chromalox: Global industrial heating equipment manufacturer (now part of Spirit Holdings). Direct overlap with Winkler AG in industrial heaters, trace heating, and explosion-proof heating solutions for process industries.
- Watlow Electric Manufacturing Company: Major US-based manufacturer of industrial heaters, temperature sensors, and controllers. Highly comparable to Winkler AG across product categories (heating elements, controllers, ATEX-class products) and vertical coverage (semiconductor, process, and laboratory).
- Friedr. Freek GmbH: German industrial heating element manufacturer comparable to Winkler AG in heating cables, heating jackets, and process heating solutions for OEM and industrial customers in the DACH region.
- JUMO GmbH & Co. KG: German manufacturer of temperature controllers, sensors, and automation solutions. Direct overlap with Winkler AG's temperature controller portfolio (L-series, W-series, multi-channel cabinets) and target verticals.
- Elmatic (Cardinal): European manufacturer of heating elements and temperature controllers for industrial applications. Comparable in product range (heating elements, controllers) and European industrial customer base.
- Tutco Heating Solutions Group: Specialty industrial heating manufacturer serving industrial, transportation, and process customers. Comparable to Winkler AG in customer verticals and flexible/custom heating solutions.
Broad incumbents
- WIKA Alexander Wiegand SE & Co. KG: Global manufacturer of measurement instrumentation including temperature sensors and controllers. Broader incumbent peer in temperature instrumentation that overlaps with Winkler AG's controller and sensor capabilities.
- Heraeus Electro-Nite: Heraeus division offering process measurement and heating/thermal sensing solutions for metallurgy and process industries. Comparable on temperature-sensing and process-control side, though broader industrial scale.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Winkler Ag social profiles
Digital presenceWinkler Ag compliance and trust
Trust signalCompliance4 records
Winkler Ag financial estimates
Financial estimateRevenue estimate
Valuation estimate
Winkler Ag leadership team
Management profileNumber of profiles
Profiles10 records
Winkler Ag subsidiaries and ownership
Company hierarchySubsidiaries1 record
Winkler Ag funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Winkler Ag 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 Winkler Ag
What does Winkler Ag do?
Winkler AG develops and manufactures flexible electric heating solutions and temperature controllers for industrial and laboratory applications. The portfolio includes heated hoses and analysis lines, Pilz® laboratory heating mantles, container heaters (drum, IBC, gas cylinder), temperature controllers (single- and multi-channel, in-line, control cabinets), ATEX-certified explosion-protected products, heating mats and jackets, and silicone heating elements — sold as standard catalog items or custom-engineered bespoke solutions.
Is Winkler Ag a public or private company?
Winkler Ag is a private company. It is classified as management employee owned and is currently operating.
When was Winkler Ag founded?
Winkler Ag was founded in 1979. It employs 101 to 250 people.
Where is Winkler Ag based?
Winkler Ag is headquartered in Heidelberg, Germany, in the Europe region.
How does Winkler Ag make money?
Four revenue lines are on record. Custom Heating Solutions are the primary driver. The others are temperature Controllers, ATEX/Explosion Protection Products and repair, Conversion and Upgrade Services.
Who are Winkler Ag's main competitors?
Direct peers on record are BriskHeat, Backer Hotwatt, Chromalox, Watlow Electric Manufacturing Company, Friedr. Freek GmbH, JUMO GmbH & Co. KG, Elmatic (Cardinal) and Tutco Heating Solutions Group. Broad incumbents are WIKA Alexander Wiegand SE & Co. KG and Heraeus Electro-Nite.
Does Winkler Ag have an API?
No public API is recorded for Winkler Ag.
What industry is Winkler Ag in?
Winkler Ag's product category is Industrial Heating Equipment. Its primary akta.pro industry code is IMAHAKAH, Refrigeration Components & Controls (Compressors, Valves, Sensors). Its NAICS code is 334512 and its SIC code is 3585.