Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source Google Zanzibar-inspired authorization service; fine-grained permissions for multi-tenant SaaS and AI agent access control at sub-millisecond latency.
Authzed (now SpiceDB) is an open-source, Google Zanzibar-inspired authorization service that enables developers to define and evaluate fine-grained permissions at scale, decoupling authorization logic from application code. Founded in 2021 and headquartered in San Francisco, Authzed built SpiceDB — an open-source implementation of Google's Zanzibar authorization system that powers Google Drive, Google Docs, and YouTube's permission systems — making enterprise-grade authorization accessible to development teams without Google-scale infrastructure.
Mountain View construction layout robot (FieldPrinter 2) at 10K-15K sq ft/day, 10x manual speed with 1/16" accuracy; $69.5M total printing 100M+ sq ft for DPR/Turner/Skanska competing with Trimble for BIM-to-field layout automation.
Dusty Robotics is a Mountain View, California-based construction robotics company — backed with $69.5 million in total funding from Root Ventures, Scale Venture Partners, Canaan Partners, GRIDS Capital, and Cantos — providing general contractors and construction teams with the FieldPrint Platform: a BIM-to-field robotic layout solution that uses the FieldPrinter robot to print precise floor markings from digital building models, replacing the manual chalk-line and tape-measure layout process that construction crews use to mark where walls, electrical, plumbing, and structural elements will be built. The FieldPrinter 2 (launched January 2024) lays out 10,000-15,000 square feet per day with one operator at 1/16 inch accuracy — approximately 10x faster than manual layout methods — and has printed over 100 million square feet across thousands of projects for customers including DPR, Turner, and Skanska. Named one of Fast Company's Most Innovative Companies of 2024 in the robotics category. Founded in 2018.
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