{"id":8948,"date":"2020-05-28T11:28:07","date_gmt":"2020-05-28T09:28:07","guid":{"rendered":"http:\/\/localhost:8888\/clearsy\/?page_id=8948"},"modified":"2025-09-05T12:03:17","modified_gmt":"2025-09-05T10:03:17","slug":"accueil-acf","status":"publish","type":"page","link":"https:\/\/www.clearsy.com\/en\/","title":{"rendered":"Home"},"content":{"rendered":"

[vc_row full_width=”stretch_row” el_id=”hero-home” el_class=”hero no-mb”][vc_column]\n\t\"\"<\/picture>\n\n

CLEARSY<\/span><\/p>\n

Safety software and systems designer<\/h1>\n<\/div>

Your safety system<\/a><\/p>\n<\/div>[\/vc_column][\/vc_row][vc_row full_width=”stretch_row” el_class=”bg-gris py-4 no-mb”][vc_column width=”1\/2″ el_class=”mb-2 mb-md-0″]

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The CLEARSY company<\/h2>\n<\/div>

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.<\/p>\n<\/div>

CLEARSY: safety systems engineering<\/p>\n<\/div>

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.<\/p>\n

CLEARSY produces safe systems and software in the railway, automotive, military, space and nuclear fields.<\/a><\/span><\/p>\n

Download CLEARSY's leaflet<\/span>\n\t\tDownload<\/span><\/span><\/a>\n
\n Download the product catalog<\/span>\n\t\tDownload<\/span><\/span><\/a>\n
\n Download the railway products & services presentation<\/span>\n\t\tDownload<\/span><\/span><\/a>\n<\/p>\n

Presentation<\/a><\/p>\n<\/div>[\/vc_column][\/vc_row][vc_row][vc_column]

News<\/h2>\n<\/div>
\r\n \"Safety<\/a>\r\n Safety at the core of Interoperability \u2013 New York City subway, MTA<\/a>\r\n
\r\n 3 April 2026 | <\/span>Railway<\/a>\r\n <\/div>\r\n
\r\n The Metropolitan Transportation Authority (MTA) has adopted the CLEARSY Data Solver ! In complex rail environments such as New York […]\r\n <\/div>\r\n<\/div><\/div>
\r\n \"CLEARSY<\/a>\r\n CLEARSY enables ETCS upgrades to be tested before their actual deployment<\/a>\r\n
\r\n 2 April 2026 | <\/span>ERTMS<\/a>\r\n <\/div>\r\n
\r\n In the European ETCS Level 2 rail system, train movements are supervised by control centers known as RBCs (Radio Block […]\r\n <\/div>\r\n<\/div><\/div>
\r\n \"CLEARSY<\/a>\r\n CLEARSY RS4 safety relay is now even easier to integrate<\/a>\r\n
\r\n 24 March 2026 | <\/span>Component<\/a>\r\n <\/div>\r\n
\r\n CLEARSY is evolving its range of SIL 4 certified safety relays (compliant with EN 50129). As safe and reliable as […]\r\n <\/div>\r\n<\/div><\/div>
\r\n \"Over<\/a>\r\n Over 1,000 safety controllers deployed by CLEARSY<\/a>\r\n
\r\n 19 March 2026 | <\/span>Component<\/a>\r\n <\/div>\r\n
\r\n The CLEARSY Safety Platform, based on a dual-core safety architecture, has just surpassed the milestone of 1,000 controllers deployed worldwide […]\r\n <\/div>\r\n<\/div><\/div>
\r\n \"CLEARSY<\/a>\r\n CLEARSY at the ERTMS 2026 conference in Valenciennes<\/a>\r\n
\r\n 18 March 2026 | <\/span>ERTMS<\/a>\r\n <\/div>\r\n
\r\n CLEARSY is a leading provider of simulation and testing tools compliant with ERTMS standards, not only for Baseline 3 but […]\r\n <\/div>\r\n<\/div><\/div>
\r\n \"Modernising<\/a>\r\n Modernising nuclear control and command systems: CLEARSY and D3E at work at the CEA in Marcoule<\/a>\r\n
\r\n 12 March 2026 | <\/span>Energy\/nuclear<\/a>\r\n <\/div>\r\n
\r\n CLEARSY is assisting the CEA Marcoule in modernising the control system for the Basic Nuclear Installation (INB): Multipurpose Intermediate Storage […]\r\n <\/div>\r\n<\/div><\/div><\/div>
<\/div><\/div>
<\/div>
<\/div><\/div>[\/vc_column][\/vc_row][vc_section full_width=”stretch_row” el_class=”bg-bleu”][vc_row full_width=”stretch_row”][vc_column]

Safety software and systems<\/p>\n<\/div>

All our security systems and software available below. If you have a specific problem, contact us.<\/span><\/p>\n<\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=”1\/4″ el_class=”full-btn-list”]

Know-how<\/span><\/p>\n

Formal methods<\/a><\/p>\n

Custom made safety developments<\/a><\/p>\n

research and development<\/a><\/p>\n

operational safety<\/a><\/p>\n<\/div>[\/vc_column][vc_column width=”1\/4″ el_class=”full-btn-list”]

Tools<\/span><\/p>\n

Atelier B<\/a><\/p>\n

Supervision<\/a><\/p>\n

Bancs de tests<\/a><\/p>\n

CLEARSY Safety Platform<\/a><\/p>\n

ERTMS\/ETCS<\/a><\/p>\n

CLEARSY Data Solver<\/a><\/p>\n<\/div>[\/vc_column][vc_column width=”1\/4″ el_class=”full-btn-list”]

operational systems<\/span><\/p>\n

COPPILOT<\/a><\/p>\n

COPP<\/a><\/p>\n

DIL<\/a><\/p>\n

DOF1<\/a><\/p>\n

KFS SIL2<\/a><\/p>\n

KVB<\/a><\/p>\n

KPVA<\/a><\/p>\n

REGIOLIS<\/a><\/p>\n

Tramway automatic stopping<\/a><\/p>\n

New York City Transit<\/a><\/p>\n<\/div>[\/vc_column][vc_column width=”1\/4″ el_class=”full-btn-list”]

Service areas<\/span><\/p>\n

Railways<\/a><\/p>\n

Energy<\/a><\/p>\n

Micro-electronics<\/a><\/p>\n

automotive<\/a><\/p>\n

defense<\/a><\/p>\n<\/div>[\/vc_column][\/vc_row][\/vc_section][vc_row full_width=”stretch_row” el_class=”py-0″][vc_column]

\"\"<\/div><\/div><\/div><\/div>

Contact us<\/p>\n<\/div>

Need a secure, custom-made system ?<\/p>\n<\/div><\/div><\/div><\/div>

Contact us<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div>

<\/div><\/div>[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"CLEARSY is assisting the CEA Marcoule in modernising the control system for the Basic Nuclear Installation (INB): Multipurpose Intermediate Storage [...]","protected":false},"author":17,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-8948","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nHome - CLEARSY<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.clearsy.com\/en\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Home - CLEARSY\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.clearsy.com\/en\/\" \/>\n<meta property=\"og:site_name\" content=\"CLEARSY\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-05T10:03:17+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/\",\"url\":\"https:\\\/\\\/www.clearsy.com\\\/en\\\/\",\"name\":\"Home - 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