63 companies tracked, 55 with documented incidents. Ranked by RobotRisk index; tick marks category median where nonzero.
The 'other' category is the largest grouping shown, spanning six companies — Tier IV, Metrolinx, Waymo, the Uber Eats delivery robot operator, and Nishi Tokyo Bus Co. — with index values ranging from 6.4 to 24.8 and percentiles from 16.1 to 79. Severity across entries is mixed, from severity-1 malfunctions to a severity-3 injury involving Waymo, with most non-Waymo entries clustering at severity 1-2 and appearing as single, isolated rows. Waymo is the clear outlier and sole driver of the elevated band, carrying four entries across three years including a recall and an injury, while the remaining five companies each hold one low-severity, low-percentile entry. The dominant pattern in this category is concentration of risk in one operator (Waymo) against a broad base of isolated, non-recurring incidents elsewhere, spanning transit, delivery-robot, and robotaxi subsegments with no single common failure mode across the group.