Experts in embedded RTOS, with a specialisation in safety certified software

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WITTENSTEIN high integrity systems

WITTENSTEIN high integrity systems: experts in embedded RTOS and Middleware technology with a specialisation in safety certified software. Supplying advanced RTOS and Middleware components across a broad range of market sectors and applications, from basic embedded designs, up to complex safety systems demanding the highest levels of certification. Contact us today.

APN Advanced Technology Badge


Add greater safety and security to your SAFERTOS applications with these safety plugins, supplied with a certification pack to IEC 61508.


Fast, feature rich Middleware solutions available tightly integrated with our RTOS products.

RTOS Specialists

WITTENSTEIN high integrity systems use an ISO 9001:2015 Quality Management System, certified by Lloyds Register LRQA UK applicable to:

Design, development, installation and support of high integrity systems and software for medical, aviation and industrial applications.

Our team of development engineers are here to help resolve any questions you might have about our products. First year support included free as standard.

Become a competent and informed user of our RTOS and middleware components by attending  one of our training courses. More…

Benefit from our knowledge and experience to help optimise designs, improve your design processes and achieve certification faster. More…

Latest News

SAFERTOS now supports RISC-V

WHIS announce a new RISC-V port for SAFERTOS, the safety critical real-time operating system. A demo of this port is available from the WHIS website.


FreeRTOS Training

A comprehensive three-day training course for the FreeRTOS kernel is now available from WITTENSTEIN high integrity systems (WHIS). The training is available worldwide, with courses to suit individuals and organisations.



Our Partners

Below are some of our partners. View our partners page to see the full list.

Texas Instruments
Renesas Gold Partner


Premier Microchip Third Party Partner

Xilinx alliance program member


ST Logo


IAR logo