It operates in 10 major markets: Aerospace, Automobile, Defense, Energy, Financial services, Government, Medical devices, Rail, Space and Telecommunications. It presents some additional areas of specialization such as: Cybersecurity, Digital transformation, Security management, Systems and software development and Testing services.
Its client portfolio includes NASA, who was its first client, with Critical Software having been involved in 20 space missions (including the recent Exomars mission in 2016). Other examples are: AgustaWestland, Vodafone, Infineon, EDP, Enersis, CGD, BCI, Unimed, AES, BPI, SIBS, mCel, UNITEL and the Bank of New York.
Currently, it has offices in Coimbra, Lisbon, Viseu, Tomar, Vila Real and Porto (opened in 2017), with subsidiaries in the United Kingdom (Southampton and Derby), Germany (Munich), United States (Sunnyvale).