The company was founded in 1990 by Martin Day and Andy Beveridge. Both directors have backgrounds of developing game console software development tools, such as SNASM and Psy-Q, at Cross Products and later
Psygnosis. SN Systems' long association with the
PlayStation line of consoles began in 1993, when PlayStation manufacturer Sony acquired Psygnosis, who were publishing SN Systems' tools at the time. While Sony had provided
MIPS R4000-based
Sony NEWS workstations for PlayStation development, Psygnosis disliked the thought of developing on these expensive workstations and asked SN Systems to create a PC-based development system. The company won again in 2005, this time for the ProDG for PSP suite. SN Systems was acquired by
Sony Computer Entertainment in 2005, to provide tools for the PlayStation 3, and future consoles. Based in
Bristol, England, the company had satellite offices in
San Mateo, California and
Dublin, Ireland. On 5 February 2025, it was announced that SN Systems was to be fully integrated into Sony Interactive Entertainment on 1 April 2025. ==Products==