Verified Nov 2026
Metal Fabrication
·
Dillenburg, Hesse
·
Since
Isabellenhütte Heusler GmbH & Co. KG is a family-run company headquartered in Dillenburg, Hesse, Germany. It makes electrical resistance materials, precision alloys, thermocouples, and precision power resistors used to measure current, voltage, and temperature. The company employs an estimated 1,000 to 5,000 people and serves the automotive, electric-vehicle, electronics, medical, and industrial equipment sectors. In 2026 it reported an expansion of its ISA-Nickel product family, and it also received the Bosch Global Supplier Award in 2025.
Isabellenhütte Heusler GmbH & Co. KG at a glance
Revenue
$100-250M
Est. band
Employees
1,000-5,000
Headquarters
Dillenburg, Hesse
Certifications
IATF 16949 · ISO 9001
Industries
Automotive
Electric Vehicles
Electronics
Medical
Plumbing & Hardware
Industrial Equipment
Overview
Isabellenhütte Heusler GmbH & Co. KG is a family-run company headquartered in Dillenburg, Hesse, Germany. It makes electrical resistance materials, precision alloys, thermocouples, and precision power resistors used to measure current, voltage, and temperature. The company employs an estimated 1,000 to 5,000 people and serves the automotive, electric-vehicle, electronics, medical, and industrial equipment sectors. In 2026 it reported an expansion of its ISA-Nickel product family, and it also received the Bosch Global Supplier Award in 2025.
At a glance
Attribute | Detail |
|---|---|
Headquarters | Dillenburg, Hesse |
Employees | 1,000-5,000 |
Revenue | $100-250M (estimated) |
Primary capability | Metal Fabrication |
Certifications | IATF 16949 · ISO 9001 |
What Isabellenhütte Heusler GmbH & Co. KG makes
The company holds IATF 16949 and ISO 9001 certifications and offers in-house products including precision alloys, thermocouples, and measurement systems.
Products and capabilities described on the company's own site include Steel, Assembly, Sensor, Electronics (source: isabellenhuette.com).
Certifications
Isabellenhütte Heusler GmbH & Co. KG is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
IATF 16949 — isabellenhuette.com
ISO 9001 — isabellenhuette.com
Latest developments
2026-11-02 — News (isabellenhuette.com)
2026-09-24 — New Flexible Heaters for Space Applications (isabellenhuette.com)
2026-04-14 — Isabellenhütte USA is opening the doors to an expanded U.S. headquarters after an expansion. (isabellenhuette.com)
2026-03-17 — Isabellenhütte expands its ISA®-Nickel product family (isabellenhuette.com)
2025-10-17 — Bosch Global Supplier Award 2025 (isabellenhuette.com)
2025-09-29 — Factory opening in China: Strengthening our global presence (isabellenhuette.com)
Facilities
Isabellenhütte Heusler GmbH & Co. KG is headquartered in Dillenburg, Hesse. Public sources also reference these locations:
Germany — isabellenhuette.com
Company details
The company is privately held and its revenue is estimated at $100-250 million, with subsidiaries in the USA, Japan, and China. Isabellenhütte Heusler GmbH & Co. KG has an estimated 1,000-5,000 employees, and is headquartered in Dillenburg, Hesse.
Frequently asked questions
What does Isabellenhütte Heusler GmbH & Co. KG make?
Isabellenhütte Heusler GmbH & Co. KG is a family-run company headquartered in Dillenburg, Hesse, Germany. It makes electrical resistance materials, precision alloys, thermocouples, and precision power resistors used to measure current, voltage, and temperature. The company employs an estimated 1,000 to 5,000 people and serves the automotive, electric-vehicle, electronics, medical, and industrial equipment sectors. In 2026 it reported an expansion of its ISA-Nickel product family, and it also received the Bosch Global Supplier Award in 2025.
Where is Isabellenhütte Heusler GmbH & Co. KG headquartered?
Isabellenhütte Heusler GmbH & Co. KG is headquartered in Dillenburg, Hesse (5 Eibacher Weg, Dillenburg, Hesse, 35683).
How big is Isabellenhütte Heusler GmbH & Co. KG?
Isabellenhütte Heusler GmbH & Co. KG has an estimated 1,000-5,000 employees, with revenue in the $100-250M range (estimated).
What certifications does Isabellenhütte Heusler GmbH & Co. KG hold?
Isabellenhütte Heusler GmbH & Co. KG lists IATF 16949 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
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