Make your products audibly and

noticeably better with GREWUS components

Acoustic signal sensores and haptic actuators are being installed in an increasing number of machines, systems, and devices. They warn, remind, inform, give users feedback on operation, and help people find their way in everyday life.


At GREWUS, we develop and produce innovative acoustic signal sensores and haptic actuators for all industries and applications. You will find our products in many vehicles and industrial plants, in the office, in the household, and even in medical technology. You probably have already come into contact with our signalling devices, because we are one of the market leaders in our field worldwide. We also develop and manufacture suitable solutions for your products, always tailored to your requirements and with “sensible” added value for you and your customers.

Our Products

Global competence center for acoustics and haptics



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Our news at a glance

Conference “Haptic Feedback & Printed Electronics” on 16.+17.11.2020

Since components with printed conductors and integrated haptic feedback have become indispensable in the market, the Lüdenscheid Plastics Institute will, for the first time, offer a specialist conference at which the participants can find out about the latest developments in these areas and exchange ideas.…

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The knowledge you can touch – GREWUS Haptic-Workshop on 19 and 20 February 2020 in Hamburg

Whether in the automotive industry, medical technology or modern household appliances: Smart Surfaces with smooth, seamless user interfaces are in vogue. Thanks to their elegant appearance, versatility and excellent hygienic properties, they are being used in more and more areas. Haptic actuators make the operation…

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Complementary product developments

In the areas of acoustics and haptics, many different components and technologies are used, from microphones and loudspeakers to linear resonant actuators (LRAs), SMT and THT buzzers, to sensors and piezo disks. Thanks to our broad technological expertise, we are able to use these components…

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