Heermann
Heermann GmbH is a family-owned German manufacturer of specialty coated copper wires, including enameled wires, bonding wires, and high-frequency litz wires, serving the European electrical and electronics industry with custom-spec products for transformers, motors, and high-frequency applications.
- Company typePrivate
- Founded1900
- HeadquartersHagen, Germany
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Heermann does
Heermann GmbH is a German family-owned manufacturer of specialty coated copper wires, headquartered in Hagen, Germany, with approximately 60 employees. Founded in 1900 as 'Märkische Metalldrahtumspinnerei Friedrich Heermann,' the company is now in its fifth generation of family ownership under managing partners Eberhard Heermann (Technology and Sales) and Heinz E. Heermann (Commercial Area). It operates under a holding structure with parent company Draht-Isolierwerk Heermann GmbH & Co KG and has an affiliated company, ELSAN Elektrik, in Denizli, Turkey.
The company's core product portfolio comprises three lines: Kupferlackdräht (copper enameled wire) with temperature classes from 155 to 240 and polyurethane, polyesterimide, polyamideimide, and polyimide coatings; Backlackdraht (baking varnish wire) for self-supporting coils; and HEERSOLIT Hochfrequenzlitzen (high-frequency litz wire) for minimizing skin effect losses at frequencies from 10 kHz and above. Supporting offerings include blank copper wire, contract coating and serving for platinum, gold, silver, aluminum, brass, stainless steel, and other alloys, plus custom special productions. Wire diameters range from 0.025mm to 1.32mm, with multi-layer coating requiring up to 40 repeated passes. Production is governed by DIN EN IEC standards and supported by an in-house inline high-voltage fault-counting inspection system and online process data acquisition system.
The business model is B2B direct sales of custom-manufactured specialty wires to the European electrical and electronics industry, primarily manufacturers of transformers, motors, generators, and high-frequency applications. Pricing is quote-based, with copper content priced separately based on LME listing plus 2% procurement costs and 6.5% processing surcharge, and payment terms of 2% discount within 10 days or net within 30 days. Customer acquisition is conducted through the company website, direct phone/email contact, and the contact form. Heermann holds ISO 9001, ISO 14001, and ISO 50001 certifications, UL component recognition for magnet wire, and REACH and RoHS II compliance.
Heermann firmographics
Firmographics- Name
- Heermann
- Legal name
- HEERMANN GmbH
- Website
- https://heermann-gmbh.de
- Company type
- Private
- Founded year
- 1900
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Heermann GmbH is a family-owned German manufacturer of specialty coated copper wires, including enameled wires, bonding wires, and high-frequency litz wires, serving the European electrical and electronics industry with custom-spec products for transformers, motors, and high-frequency applications.
- Ownership category
- akta.pro rank
Where Heermann is headquartered
LocationHeadquarters
- HQ city
- Hagen
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Heermann business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
Revenue model
- Specialty Wire Manufacturing and Sales: Manufactures and sells coated copper wires, enameled wires, bonding wires, and high-frequency litz wires to the electrical and electronics industry. Products are produced to customer specifications. Revenue is generated through product sales with copper content calculated separately based on LME listing plus premiums and processing fees.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | B2B industrial pricing - quote-based |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Heermann product offering
Product offeringCore offering
HEERMANN GmbH manufactures specialty coated copper wires for the electrical and electronics industry, producing copper enameled wire (Kupferlackdraht), bonding varnish wire (Backlackdraht), and high-frequency litz wire (HEERSOLIT Hochfrequenzlitzen) exclusively to customer specifications. Products are supplied in wire diameters from 0.025 mm to 1.32 mm with multiple insulation systems (polyurethane, polyesterimide, polyamideimide, polyimide) and temperature classes from 155 to 240, supported by in-house inline high-voltage testing and quality assurance. Contract coating and serving services for customer-supplied wire materials (platinum, gold, silver, aluminum, brass, stainless steel, resistance alloys) are also offered.
Product overview
Heermann GmbH is a family-owned industrial manufacturer specializing in precision copper wire products for the electrical and electronics industries. The core product portfolio centers on three main product lines: Kupferlackdraht (copper enameled wire in various temperature classes from 155-240), Backlackdraht (baking varnish wire for self-supporting coils), and HEERSOLIT Hochfrequenzlitzen (high-frequency litz wire for minimizing skin effect losses at frequencies from 10 kHz and above). Supporting these are blank copper wires, contract coating/serving services for various metal substrates, and custom special productions. All products comply with DIN EN IEC standards and are produced in wire diameters from 0.036 mm to 1.32 mm. The company employs approximately 60 people and operates modern production facilities with inline high-voltage testing and process data acquisition systems.
Differentiator
Problem solved
Functional benefit
Brands
- HEERSOLIT: High-frequency stranded wires (Hochfrequenzlitzen), also called Würge- or Bündellitzen
Quantifiable outcome
- Multi-layer coating process with up to 40 repeated passes achieving high specific insulation and high voltage strength (V/μm) and flexibility
Companies that use Heermann
Customer profileNamed customers1 record
Segments1 record
Heermann technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Heermann partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Draht-Isolierwerk Heermann GmbH & CO KGcoreParent company structure: HEERMANN GmbH (operating company for production and sales) is a subsidiary of Draht-Isolierwerk Heermann GmbH & CO KG, which itself is owned by ELSAN Elektrik.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Heermann competitors and assessment
Company assessmentBroad incumbents
- Hitachi Metals (now Proterial): Former Hitachi Metals (now Proterial) is a major Japanese specialty materials manufacturer with magnet wire and high-frequency wire offerings. Comparable to Heermann in enameled and bonding wire technology, at much larger scale.
- Superior Essex: Global magnet wire and communications cable manufacturer with significant enameled wire capacity. Competes with Heermann in winding wire for motors, transformers, and generators, particularly in applications requiring UL/IEC compliance.
- Fujikura: Japanese global wire and cable manufacturer with magnet wire and specialty wire products (including litz wire for high-frequency applications). Overlaps with Heermann's HF litz wire line serving EVs, renewables, and electronics.
- Leoni AG: German-based global wire and cable manufacturer with a strong specialty wires business including enamelled copper wire. Competes with Heermann in coil winding and electric mobility applications, though at significantly larger scale.
- Rea Magnet Wire: One of the largest North American magnet wire manufacturers offering a broad portfolio of enameled copper and aluminum wire. Overlaps with Heermann on Kupferlackdraht and bonding wire products, but serves higher volume and a wider customer base.
Direct peers
- LWW Group (Lackdraht Union): European manufacturer of enamelled copper wire (Kupferlackdraht) and bonding wire serving similar European electrical and electronics OEM customers. Closely comparable product lines and customer base to Heermann.
- Elektrisola: German-headquartered global manufacturer of fine and finest enamelled copper wire, the most direct competitor to Heermann's core Kupferlackdraht and HEERSOLIT litz wire product lines. Both target transformers, motors, and high-frequency coil applications with overlapping diameter ranges.
- SynFlex Elektro: European-focused manufacturer of litz wire and insulated winding wires. Direct overlap with Heermann's HEERSOLIT high-frequency litz wire product line and similar customer base in transformers, motors, and inductors.
- MWS Wire Industries: US specialty wire manufacturer focused on magnet wire, litz wire, and custom wire products including fine wire to customer specifications. Directly comparable to Heermann's custom fine and finest winding wire / HEERSOLIT-style offerings.
Emerging players
- Rubadue Wire: US specialty litz wire and triple-insulated wire manufacturer with focus on high-frequency and EV applications. Emerging competitor in the same HF litz wire niche where Heermann's HEERSOLIT brand competes.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Heermann social profiles
Digital presenceHeermann compliance and trust
Trust signalCompliance6 records
Heermann financial estimates
Financial estimateRevenue estimate
Valuation estimate
Heermann leadership team
Management profileNumber of profiles
Heermann funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Heermann 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 Heermann
What does Heermann do?
HEERMANN GmbH manufactures specialty coated copper wires for the electrical and electronics industry, producing copper enameled wire (Kupferlackdraht), bonding varnish wire (Backlackdraht), and high-frequency litz wire (HEERSOLIT Hochfrequenzlitzen) exclusively to customer specifications. Products are supplied in wire diameters from 0.025 mm to 1.32 mm with multiple insulation systems (polyurethane, polyesterimide, polyamideimide, polyimide) and temperature classes from 155 to 240, supported by in-house inline high-voltage testing and quality assurance. Contract coating and serving services for customer-supplied wire materials (platinum, gold, silver, aluminum, brass, stainless steel, resistance alloys) are also offered.
Is Heermann a public or private company?
Heermann is a private company. It is currently operating.
When was Heermann founded?
Heermann was founded in 1900. It employs 51 to 100 people.
Where is Heermann based?
Heermann is headquartered in Hagen, Germany, in the Europe region.
How does Heermann make money?
One revenue line is on record: specialty Wire Manufacturing and Sales.
Who are Heermann's main competitors?
Broad incumbents on record are Hitachi Metals (now Proterial), Superior Essex, Fujikura, Leoni AG and Rea Magnet Wire. Direct peers are LWW Group (Lackdraht Union), Elektrisola, SynFlex Elektro and MWS Wire Industries. Rubadue Wire is listed as an emerging player.
Does Heermann have an API?
No public API is recorded for Heermann.