A San Jose-founded (1975) national engineering firm offering full-service MEP plus fire protection (MEP/FP) design and consulting, with fire protection and life safety among its named disciplines. Its fire teams help building systems meet fire-safety codes and standards and carry out life-safety assessments as part of building-science evaluations. It also carries the forensic consultancy Haag — founded in Dallas in 1924, joined in June 2024 — whose fire origin and cause practice is led by Edward G. Roberts (IAAI-CFI, NAFI-CFEI, CVFI, CFII) — more than a thousand fires and explosions investigated, with court, deposition and mediation testimony.