A São Paulo civil-engineering firm, active since 1991, with a prominent fire safety engineering practice spanning consultancy, executive design in CAD/BIM and fire-department approvals. It runs computational fluid dynamics (CFD) simulations for smoke control and extraction in atria, auditoriums, high-rise buildings, tunnels and industrial facilities, supported by significant in-house computing — simulation outputs that inform performance-based design and remain an aid to professional engineering judgement.