IWA’s commitment to quality

Your marketing message presented in top quality. Our designs and manufacturing processes are subject to the stringent criteria of our quality management system in accordance with ISO 9001:2015.

Commitment to quality

We want to give your arguments more attention, improved comprehensibility, and higher persuasiveness.
To achieve this, both the message itself as well as the communication tool must demonstrate convincing quality.

That is why we design our products as functional, precise tools. Our products are manufactured in automated, digitally controlled production facilities. As a result, we can offer you a consistent quality of use with the highest precision.

The slide charts feature a precise slide fit that provides optimal adjustment functionality. You won’t have to worry about accidentally readjusting the sliding parts.
The wheel charts are produced with a precise centre in accordance with your specific needs and benefit from good slide properties that prevent unintentional readjustments during the calculating process.

Our management system, certified in accordance with ISO 9001:2015, ensures end-to-end control of our processes.

We offer a globally unique standard of quality in this sector. And through consistent automation, we make sure that you get the best value for money.

Watch a video of a assembly machine for Slide charts ...
Watch a video of an eyeletting Machine for Wheel charts ...

History of the company

IWA – F. Riehle GmbH & Co KG - An innovative family business for over 80 years.

Founded in 1920 by Franz Riehle as an engineering office for rationalisation, after a short time the company began to produce special slide rules under the name IWA—Rechenschieberfabrik F. Riehle GmbH. As opposed to normal slide rules these were designed with special sector specific scales to make calculations particularly simple to solve. IWA developed into a leading manufacturer in this field with a patented process for printing on plastic.

Dipl. Ing. Harald Riehle joined the Company in 1962 and under his direction the handicraft orientated works developed into innovative specialists on an international front. At the same time there was a change in emphasis in the applications of the products. In addition to the use as a calculator, its use as a communication medium for marketing technical products came more and more to the forefront. This change proved to be a distinct advantage with the emergence of electronic pocket calculators and ensured the future of the Company through an innovative market approach. The "slide rule" became a "data slide", the IWA brand came to mean "Information medium, Work aide, Advertising carrier".

The new direction was a radical success and led to an all-embracing innovation not only for the product but also in the extensive use of automatic production processes.

In 1996, Franz Riehle Jr joined the Company and extended quality management and export activity. In the meantime he manages the Company with his father and is Head of Sales.
Today, IWA is the leading manufacturer of Slide charts and Wheels in Europe and operates in nearly every industrial country in the world. Or, as in the USA, through its own sales subsidiary. The export content is now 50%.

How can we help you?

We would be pleased to develop an individual solution for your company.