Critical Software is a Portuguese information systems and software company, headquartered in Coimbra (Portugal).
It is a spin-off from the University of Coimbra's business incubator and technology transfer centre Instituto Pedro Nunes (IPN). The company was established in 1998 in Coimbra, Portugal, its headquarters. It has offices in Porto and Lisbon (Portugal) and subsidiaries around the world in Southampton (United Kingdom), San Jose (United States), Bucharest (Romania), São José dos Campos (Brazil), Maputo (Mozambique) and other locations.
Critical Software has participated in Earth observation related projects of the European Space Agency, such as the prevention and mitigation of forest fires, ocean monitoring and research on complex climate systems.