Isabellenhuette (Isa) is one of the major players in this space and has been discussed on and off several times.
A bit about Isa
Isabellenhuette sees itself as the pioneer of precision current measurement technologies. They are an important manufacturer of electrical resistance materials and thermoelectric materials for temperature measurement as well as of passive components for the automotive, electrical and electronics industries.
They claim to define the state of technology with their innovative products.
At a high level, co has three divisions: precision measurement technology, precision and power resistors and precision alloys.
Their precision alloys find applications in following areas:
Applications |
Applications |
Applications |
Airfoil de-icers |
Ignition and lighting systems |
Signal lines |
Circuit breakers |
Level sensors |
Seat heaters |
Coiled filaments |
Mineral-insulated wires |
Strain gauges |
Compensation leads |
Plug connectors |
Tank container heating systems |
Floor heating systems |
Quick cups |
Thermocouples |
Hard solders |
Rail heating systems |
Thermoelectric leads |
Heating cables |
Resistors |
|
Heated hoses |
Resistance thermometers |
|
In the precision measurements division, in order to achieve a high product quality, they use their advanced shunt technology ISA-WELD® and ISA-PLAN® in their measurement technology field as well.
They have 2 separate lines of current sensing resistors:
Both have their own application areas:
ISA-PLAN® film technology
- Automotive
- Power electronics
- Drive technology
- Medical technology
- Aviation and aerospace
ISA-WELD® composite material
- Automotive
- E-Mobility
- Battery charging technology
- Drive technology
- Electronic energy meters
- Energy measurement
^ that gives us a rough idea of the set of adjacencies that Shivalik can move into, in order to better tap their expertise of metal joining techniques.
Isa has a flexible and completely independent production by concentrating on the essential production steps in one location (vertical integration?), from the melt to the rolling mill, the wire drawing facility, the complete building element and measurement module production to the final inspection. In this way they ensure the highest quality, since development, production, quality management and quality assurance are completely in their control and under one roof
Isabellenhütte is certified according to the ESCC system of the European Space Agency (ESA) and is thus approved as a “qualified supplier” for aerospace applications of resistors. This seems to be a large quality differential versus shivalik (at least as far as certifications go) since we have not seen Shivalik being ESCC certified which might allow Aerospace applications of their resistors. All certifications here: Certifications • Isabellenhütte
They seek to have high customer satisfaction by repeatedly meeting all customer needs:
Analysis of high level financials
I thought it would help to understand the scale of Isa.
Isabellenhuette is a private co so we dont have a lot of data. My 1st line of thought was that some websites provide data for private cos (1st level of approximation).
https://www.northdata.com/Isabellenhütte+Heusler+GmbH+%26+Co.+KG,+Dillenburg/Amtsgericht+Wetzlar+HRA+5057
^ One such website above. This website only has data until 2020 but here goes:


We can see both on margins and revenue base, isa degrowing, potentially creating a whitespace for SBCL to operate. (To do: look for 2021 and 2022 data to see whether they conform to this trend).
Isa’s lack of price competitiveness was already established here. However, do note that at 142 M euros in 2020, Isa is (or was) still a 300 pound gorilla. Comparing like for like (almost, since different financial year durations) , in 2020, Isa was at 1150 cr in 2020 6x the size of SBCL.
The next level of due diligence that i am looking to get into is to try to find a detailed latest financial statement for Isa, or their annual report if possible.
Source:
https://www.isabellenhuette.de/en/