The published 2026 construction-AI case corpus is overwhelmingly vendor-led (Procore, Autodesk Construction Cloud, OpenSpace, Buildots, Doxel) with thin named small-contractor self-published cases. Reading the vendor corpus honestly, three workflows now show consistent under-100-employee contractor AI deployment (estimating speed via takeoff acceleration, schedule risk surfacing, as-built reality capture); a fourth (AI safety detection) remains structurally biased toward larger sites with the camera coverage and safety officer to act on alerts.

Path B operator case-study piece, vendor-corpus-heavy because small construction firms rarely publish. Defensible 25-employee specialty contractor stack: one PM platform (Procore, Fieldwire, or Buildertrend) + AI-assisted estimating add-on + reality-capture if multi-site or warranty exposure + Enterprise AI assistant for project documents. Vendor-published 30-50% estimating time saving treated as directional, not measured.