International orientation
From Dillenburg (DE) into the world: Thanks to our expertise, innovative strength and the exceptionally high quality of our products, we have developed into an internationally active high-tech company.
Headquarter in Dillenburg (DE)
In Germany, we are there for you at our main site in Dillenburg with an extended production site in Dillenburg-Manderbach and our development site in Bochum.
All production steps are carried out at our company headquarters in Dillenburg, from the foundry to the wire drawing shop to the production of resistors and sensors, including final testing, packaging and shipping. Since 2019, we have had an additional production site in Dillenburg-Manderbach. This expansion enables us to increase our production capacity while maintaining our high level of vertical integration.

Our subsidiaries
Our subsidiaries in the USA, China, Japan and India, together with over 60 distribution partners worldwide, stand for our international orientation - and at the same time guarantee close, trustworthy support for our customers on site thanks to our local presence.
Isabellenhütte USA
In 2010, ISOTEK, a long-standing trading partner and distributor of Isabellenhütte, was acquired as Isabellenhütte's first subsidiary in the USA. This was renamed Isabellenhütte USA in 2017 as part of a rebranding. The takeover offered the opportunity to provide comprehensive technical support for end customers.
With the product areas that Isabellenhütte USA continues to offer as a representative – the sales portfolio complements the portfolio of our headquarters in Dillenburg in a unique way. In over 25 years, Isabellenhütte USA has developed into a leading supplier of current measuring and high-performance resistors as well as alloys. With high-quality products, competent technical advice and service-oriented customer support, our American experts make a decisive contribution to the growth of Isabellenhütte.
Find out more on the local website of our subsidiary.
Email: salesusa@isabellenhuette.com
phone: +1-508-673-2900


Isabellenhütte Kabushi Kaisha
In 2012, Isabellenhütte opened the subsidiary Isabellenhütte K.K. in Japan. Located in Nihonbashi, the company organizes the distribution of alloy, components and measurement technology products.
Thanks to its direct local presence, Isabellenhütte K.K. has in-depth technical expertise in the Japanese market and can guarantee close cooperation with customers and partners. The proximity to customers enables fast response times, customized solutions and intensive technical advice - all in the spirit of a long-term and trusting partnership.
Email: Ryota.Katsube@isabellenhuette.com
phone: +81-3-38361600
Isabellenhütte (Changzhou) Electronic Technology Co., Ltd.
In 2013, Isabellenhütte opened its third subsidiary, which is based in Shanghai and is responsible for China, Taiwan, Japan, Korea, Thailand, Malaysia, the Philippines and Indonesia. Isabellenhütte Shanghai organizes the distribution of component and measurement technology products and helps to implement more intensive cooperation with existing agencies.
In addition, it supports the management of existing and the development of new distribution channels and takes care of the establishment and expansion of further contacts with global key accounts in China.
Email: ladislav.varga@isabellenhuette.com
phone: +86 21 64269030


Isabellenhütte India Pvt. Ltd.
In 2025, Isabellenhütte India was founded as the fourth international subsidiary. The new branch marks a significant milestone in the long-standing partnership with our previous trading partner and distributor in India.
With the new location, we are expanding our presence on the Indian market in a targeted manner and are focusing on customer proximity, individual advice and efficient delivery processes.
Thanks to the close connection to our headquarters in Germany, our customers in India benefit directly from our global network, our comprehensive expertise and the latest developments in research and production.
Email: nadeem.aijaz@isabellenhuette.com
Tel: +91 20 2674 1014

innoCampus Bochum
The development site in the newly built Innocampus Bochum, which was opened in 2023, is located in the heart of the Ruhr region.
Located between the university and the city center, the Mark 51°7 site brings together a wide variety of technology-oriented production companies, commercial enterprises and research and development companies to work on the latest technologies. The location offers short distances to the city center, universities and knowledge districts in Bochum.
Here, our experts work on the latest innovations in areas such as measurement technology, smart grid and automotive.