Carrier profile · USDOT 3482852 · MC-1143689 · Updated Sep 6, 2026
Mackay Auto Supply Inc
DBA MACKAY TRANSPORT
2 power unitsGRAVENHURST, ON50/100
NO OPERATING AUTHORITYMC-1143689 NO AUTHORITYHAZMAT
Operations & Lanes
Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.
Inspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
GRAVENHURST, ON
Density
fewermore