Safety software and systems designer

The CLEARSY company

CLEARSY was founded on January 1, 2001 by the team of engineers responsible for the industrialisation of the formal modelling tool called Atelier B, used in the railway sector to produce safety software.

CLEARSY: safety systems engineering

We are a French SME, specialised in the realisation of safety systems and software from level SIL1 to SIL4. We develop complex systems by ensuring their design, their validation, verification and safety study, right up to their commissioning.

CLEARSY produces safe systems and software in the railway, automotive, military, space and nuclear fields.

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CLEARSY, a key player in Parisian metro projects
CLEARSY has been supporting RATP in its Paris projects for 30 years! From the development of Meteor, line 14, based […]
CLEARSY at INNOTRANS (Hall 27 – stand 301) from September 24 to 27, 2024 in BERLIN
CLEARSY’s team is pleased to be present at the INNOTRANS exhibition which will take place from 24 to 27 September […]
Join us at the RSSI Conference in Louisville, USA!
We are excited to announce that CLEARSY will be participating in the upcoming RSSI conference, a key event for the […]
Extension of Line 14 of the Paris Metro: over 25 years of reliability thanks to the B formal method
“Thanks to the B method, Meteor kept its promise” … “I’d never seen anything like it: the software was almost […]
The joint efforts of SIEMENS Mobility and CLEARSY have resulted in a number of commissionings in 2024!
Indeed, CLEARSY is proud to support Siemens Mobility by taking part in all V-cycle activities for the development of their […]
CLEARSY continues to roll out its Platform Screen Doors control systems in São Paulo subway
COPPILOT is a railway safety system (up to SIL4) that controls the opening and closing of platform screen doors in […]

Safety software and systems

All our security systems and software available below. If you have a specific problem, contact us.

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