Esterel Technologies

Esterel Technologies is a French-origin software engineering company focused on the development, verification, and code generation of safety-critical embedded systems. Its tools are intended for applications in which software and hardware must satisfy demanding requirements for reliability, traceability, deterministic behavior, and certification. The company’s technology translates formal or model-based specifications into implementation artifacts and supports the validation of control systems, user interfaces, and other embedded functions. The company was created in 2000 as a spin-off from Simulog. Simulog had itself originated from research associated with France’s INRIA laboratory, and several early Esterel figures came from that academic and industrial environment. The company took its name from Esterel, a synchronous programming language associated with Gérard Berry. Its initial commercial product, Esterel Studio, sought to bring synchronous-language methods into industrial development, first with an emphasis on telecommunications and later on electronic design automation and embedded control. Esterel broadened its product base in 2003 by acquiring a Lustre-based tool set known as SCADE, or Safety Critical Application Development Environment. Esterel and SCADE represented related approaches to synchronous and model-based development, and their underlying communities worked toward a combined product direction. This work ultimately led to SCADE Suite 6 and later versions, making SCADE the principal product family associated with the company. The portfolio expanded further in 2006 when Esterel acquired the IMAGE product from Thales and Diehl Aerospace. IMAGE had been used in the development of the Airbus A380 cockpit. Esterel rebranded the technology as SCADE Display, positioning it as a framework for real-time display prototyping, design, simulation, verification, validation, and integration. The product also supported generation of code intended for certification under the DO-178B airborne software standard, including the highest certification level identified in the company’s product description. Esterel maintained an international commercial presence through offices in France, the United States, Germany, the United Kingdom, and China, supplemented by distributors in Japan, China, South Korea, Israel, and India. Its customer and application base has been associated with aerospace, transportation, defense, telecommunications, and other sectors where embedded systems are subject to stringent safety or reliability requirements. The company’s corporate structure changed during the late 2000s and early 2010s. Esterel Studio was acquired by Synfora in 2009. In 2012, Ansys announced an agreement to purchase Esterel Technologies for approximately €42 million. Following the transaction, Esterel became a wholly owned subsidiary of Ansys. The Esterel business is therefore best understood as an Ansys-owned specialist brand and technology operation centered on the SCADE family and model-based engineering for critical systems.

Esterel Technologies was established in 2000 as a spin-off from Simulog, a French company whose own origins were connected to INRIA research. The company inherited a strong academic and industrial background in synchronous programming and formal methods. Its name came from the Esterel synchronous programming language, developed in the French research community and closely associated with Gérard Berry. The company’s first principal product was Esterel Studio. The product was intended to make synchronous programming concepts usable in commercial engineering environments. Early application areas included telecommunications and electronic design automation. Rather than treating software implementation as an isolated coding exercise, the Esterel approach emphasized executable or analyzable models, formal specifications, and systematic generation of implementation code. In 2003, Esterel Technologies acquired a Lustre-based tool set called SCADE, short for Safety Critical Application Development Environment. Lustre was another synchronous language with a strong research and safety-critical engineering heritage. The acquisition expanded Esterel’s commercial reach and gave the company a platform oriented toward embedded systems whose behavior must be predictable and auditable. The communities surrounding Esterel and Lustre subsequently developed a way to bring the two technological approaches together. That work was commercialized in SCADE Suite 6 and its successors. A second important expansion took place in September 2006, when Esterel acquired IMAGE from Thales and Diehl Aerospace. IMAGE had been developed for cockpit-display engineering and was used in connection with the Airbus A380 cockpit. Esterel renamed the product SCADE Display. The resulting offering addressed real-time display prototyping, display design, simulation, verification, validation, and integration with other applications. It also supported the generation of code intended for DO-178B certification, including Level A applications as described in the company’s product materials. This acquisition broadened SCADE from a general safety-critical development environment into a wider tool chain covering both control logic and human-machine interfaces. In February 2007, Esterel announced a partnership with Wind River Systems to integrate SCADE with the VxWorks 653 real-time operating system. The relationship reflected the company’s strategy of connecting model-based development with deployment platforms used in safety-critical and partitioned embedded systems. Esterel’s commercial organization included offices in Élancourt, Mountain View, Ottobrunn, Bracknell, and Shanghai, while distributors extended its reach into several additional Asian and Middle Eastern markets. The corporate history also includes a divestment involving Esterel Studio. In 2009, Synfora acquired Esterel Studio. The transaction distinguished the original Esterel Studio line from the SCADE-centered business that continued to define Esterel Technologies’ principal portfolio. In 2012, Ansys announced a definitive agreement to acquire Esterel Technologies for approximately €42 million. The transaction placed Esterel within a larger engineering-simulation software group and made it a wholly owned Ansys subsidiary. The acquisition complemented Ansys’s broader position in engineering analysis by adding specialized model-based development, verification, and code-generation capabilities for embedded systems. Esterel’s legacy and product identity have consequently been associated primarily with the SCADE family within the Ansys organization.

1. 2012Ansys announces acquisition of Esterel Technologies

   Ansys announces an agreement to acquire Esterel Technologies for approximately €42 million, after which Esterel becomes an Ansys-owned subsidiary.

   Source
2. 2009Esterel Studio is acquired by Synfora

   Synfora acquires Esterel Studio, separating that product activity from the SCADE-centered Esterel Technologies portfolio.

   Source
3. 2007SCADE and VxWorks 653 integration partnership

   Esterel announces a partnership with Wind River Systems to integrate SCADE with the VxWorks 653 real-time operating system.

   Source
4. 2006IMAGE becomes SCADE Display

   Esterel acquires IMAGE from Thales and Diehl Aerospace and rebrands it as SCADE Display for real-time display engineering.

   Source
5. 2003Acquisition of the SCADE tool set

   Esterel acquires a Lustre-based safety-critical development environment and begins combining the Esterel and SCADE technology directions.

   Source
6. 2000Esterel Technologies is established

   The company is created as a spin-off from Simulog, drawing on research and engineering expertise connected with INRIA and synchronous programming.

   Source

A specialist provider of model-based development, formal verification, and qualified code-generation technology for safety-critical embedded software and hardware.

• SCADE SuiteSafety-critical model-based development

  SCADE Suite is the central SCADE development environment for modeling, specifying, validating, and generating code for embedded control applications. It grew from the integration of Esterel and Lustre-related technologies and is aimed at engineering teams working on deterministic, safety-critical software. Its model-based workflow is intended to improve traceability between requirements, designs, verification activities, and implementation code.

• SCADE SystemSystems engineering

  SCADE System is part of the SCADE product family and addresses system-level development for embedded applications. It supports the representation and analysis of system structures and behavior before implementation details are finalized, helping teams connect system design with downstream software and hardware development activities in safety- and mission-critical contexts.

• SCADE DisplayReal-time display engineering2006

  SCADE Display originated from the IMAGE product acquired from Thales and Diehl Aerospace in 2006. It is a framework for prototyping, designing, simulating, verifying, validating, and integrating real-time displays. The product is associated with cockpit and other embedded human-machine-interface applications and supports qualified code generation for airborne software development under DO-178B-oriented processes.

• SCADE LifeCycleLifecycle and verification tooling

  SCADE LifeCycle is a member of the SCADE family focused on lifecycle activities surrounding safety-critical model-based development. It complements design and code-generation functions with capabilities intended to support verification, validation, traceability, and management of development evidence across an embedded-system project.

• Esterel StudioSynchronous programming and model-based development

  Esterel Studio was the company’s initial principal product. It brought synchronous-programming concepts into industrial development workflows, with early applications in telecommunications and electronic design automation. The product activity was acquired by Synfora in 2009 and is therefore distinct from the later SCADE-centered portfolio.

• 2012Ansys acquisition of Esterel TechnologiesM&A

  Esterel had developed a specialized portfolio for model-based engineering, formal verification, and code generation in safety-critical embedded applications.

  What changed. Ansys signed a definitive agreement to purchase Esterel Technologies for approximately €42 million.

  Aftermath. Esterel became a wholly owned subsidiary of Ansys, adding its SCADE-oriented capabilities to the Ansys engineering-software group.

  Announced acquisition value. Approximately €42 million transaction value (2012 announcement)

  Source
• 2006Acquisition and rebranding of IMAGEM&A

  Esterel sought to expand its safety-critical development portfolio into real-time display design and cockpit-interface engineering.

  What changed. The company acquired IMAGE from Thales and Diehl Aerospace and introduced it as SCADE Display.

  Aftermath. The SCADE family gained a display framework covering prototyping, simulation, verification, validation, and qualified code generation.

  Source

• 2012Ansys agrees to acquire Esterel Technologies

  Ansys announced a definitive agreement to purchase Esterel Technologies for approximately €42 million, bringing the safety-critical development specialist into the Ansys group.

  M&A
  Source
• 2007Esterel Technologies announces partnership with Wind River for SCADE and VxWorks 653

  Esterel Technologies announced an integration partnership with Wind River Systems intended to connect SCADE development tools with the VxWorks 653 real-time operating system.

  Other
  Source

1. Esterel Technologies