Computers and Structures, Inc. (CSI) is a Walnut Creek, California software company founded in 1975 that builds the analysis and design tools structural and earthquake engineers use to model buildings, bridges, dams, stadiums and towers. Its finite-element products - SAP2000, ETABS, CSiBridge, SAFE, PERFORM-3D and CSiCOL - are used by engineers in more than 160 countries and have helped shape landmark structures including the Burj Khalifa, Taipei 101 and One World Trade Center. Founded and still led by structural engineer Ashraf Habibullah, CSI grew out of the SAP and ETABS research programs developed at UC Berkeley.
PASE (Peoples Associates Structural Engineers) is a San Jose-based structural and seismic engineering consultancy founded in 1990. Ranked among the largest engineering firms in Silicon Valley, PASE designs the bones of buildings that have to stay standing - hyperscale data centers for Meta and Vantage, multifamily and mixed-use communities, commercial and institutional projects, plus seismic retrofits and non-structural anchorage. With roughly 69 staff and 250+ years of combined experience across offices in California, Maryland and Croatia, the firm pairs heavy engineering rigor with a collaboration-first culture it calls 'The PASE Way.'