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

#iAHC2023: COME TOGETHER – Alsterlagune Hamburg

We are pleased to invite all GREWUS interACTIVE HAPTICS Conference participants to the Pre-Conference Reception on 13.06.2023. This will take place in the beautiful Alsterlagune in Hamburg. Here we will have the opportunity to get to know each other and enjoy the perfect view over…

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#iAHC2023: Location – GASTWERK Hamburg

WELCOME TO GASTWERK! The perfect venue for our interACTIVE HAPTICS conference. Our venue is a unique and historic building, a former gasworks, now transformed into a modern event space. Here we will spend two exciting days listening to exclusive presentations, actively participating, and of course,…

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#iAHC2023 Speaker: Prof. Dr.-Ing. Thorsten A. Kern

We are pleased to introduce you to the next speaker: Prof. Dr.-Ing. Thorsten Alexander Kern Institute for Mechatronics at Technische Universität Hamburg (TUHH). We are honored to have Mr. Prof. Dr.-Ing. Kern with us at the interACTIVE HAPTICS Conference 2023. He will speak about the…

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