structural-analysis
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Bentley Systems
Five brothers, one CAD engine, and four decades later the software running underneath much of the world's roads, rail, and water networks - now being rebuilt around digital twins and infrastructure AI.
SiteSee
SiteSee is a Brisbane-founded software company that builds AI-powered digital twins of telecommunications infrastructure. By combining drone capture, photogrammetry and machine-learning audit engines, it turns survey-grade imagery of cell towers and rooftops into interactive 3D models that tower companies and mobile network operators can inspect, measure and upgrade from a desk - cutting site visits, speeding colocation approvals and helping owners get more value from their assets.
Computers and Structures, Inc.
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.
Leo AI
Leo AI is a Cambridge, Massachusetts company building what it calls the world's first AI purpose-built for mechanical engineering. Its engineering design co-pilot, powered by a proprietary Large Mechanical Model (LMM) trained on millions of real-world products and engineering standards, turns text, sketches and specifications into production-ready 3D CAD models. Leo integrates with CAD and PDM systems to answer technical questions, source parts, run mechanical calculations and generate design concepts, and says it helps teams cut engineering time by up to 70%.