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Alsys, SA. (founded 1980, merged 1995) was a software development company created to support initial work on the Ada programming language.[1][2] In July 1995, Alsys merged to become Thomson Software Products (TSP),[2] which merged into Aonix in 1996.


Alsys SA. the French company was founded in 1980 by Jean Ichbiah (1940–2007). Also in 1980 the American subsidiary Alsys Inc was formed with Ben Brosgol (from Intermetrics),[3] and Pascal Clève. [1][2][3]

Promotional pin button, mid-late 1980s

In 1985 a British subsidiary, Alsys ltd was formed with John Barnes as the MD.[4]

During the merger mania of the 1990s, Alsys was repositioned via a series of mergers.

In 1991 Alsys was acquired by Thomson-CSF.[5]

In November 1992, Thomson-CSF acquired TeleSoft and merged it with Alsys.[5] [6]

In July 1995, Thomson-CSF merged two of their subsidiaries, Alsys and MUST Software, a software development corporation based in Norwalk, Connecticut, to form Thomson Software Products (TSP).[2][7]

In November 1996, TSP merged with IDE (Interactive Development Environments, Inc.) to form Aonix.

Thomson-CSF (now known as Thales), sold Aonix to Gore Technology Group (GTG) in the late 1990s.

Aonix acquired Select Software in 2001.[8]

In January 2003, GTG sold the Critical Development Solutions (CDS) division of Aonix, which included the Alsys, Telesoft and IDE product lines, to a group of French investors. The name Aonix was kept for this new company, while Select Business Solutions was the name given to the part under Gore control.[9]

In 2003, Aonix acquired NewMonics of Tucson, Arizona, a supplier of Java-compliant virtual machines for embedded and real-time systems.[10]

In January, 2010 Aonix merged with Artisan Software Tools to form Atego.[11]

Alsys was one of the few companies that developed products that unleashed the protected mode of the 80286 processor. At the time, most applications were limited to using only 640K of memory. With the Ada compiler, applications could be built using up to 16MB of memory.


  1. ^ a b "Ada 83 designer Jean Ichbiah dies", Ada-Europe, 2007, webpage: AdaE-Jobit Archived 2007-09-28 at the Wayback Machine.
  2. ^ a b c d "Wide window beckons to suppliers: just do it - the Software Magazine 1995 Top 100", Colleen Frye, Deborah Melewski, Software Magazine, July 1995, webpage: FindArticles-492.
  3. ^ a b "Parallel Processing in Ada", David Parker, April 1989, webpage: CNavy-12 Archived 2007-02-06 at the Wayback Machine.
  4. ^ High Integrity Software: The SPARK Approach to Safety and Security: John Barnes
  5. ^ a b 73: Alsys Group, Reston, Va - Top 100: Profiles of the Leading Independent Software Companies - Brief Article - Cover Story | Software Magazine
  6. ^ TeleSoft and Alsys say their merger will result in the world's largest software company dedicated to CASE and Ada products and services. (computer-aided software engineering) ...
  7. ^ Alsys merges with Must. | North America > United States from
  8. ^ "Home - Software Magazine". Archived from the original on 2011-09-28. Retrieved 2018-12-03.
  9. ^ Lookup Mainframe Software++++ [/ /]. Retrieved 14 August 2022. {{cite web}}: Check |url= value (help); Missing or empty |title= (help)
  10. ^ "Developer Tools for Engineers | PTC".
  11. ^ "Atego". Archived from the original on 2010-06-13. Retrieved 2010-05-04.


  • "Parallel Processing in Ada", David Parker, April 1989, webpage: CNavy-12.

External links[edit]

  • "Parallel Processing in Ada", David Parker, April 1989, webpage: CNavy-12.