Carrier profile · USDOT 668941 · MC-314158 · Updated Jun 13, 2026

Monson Companies of Maine Inc

DBA MONSON COMPANY SOUTH PORTLAND

3 power unitsSOUTH PORTLAND, ME40/100
NO OPERATING AUTHORITYMC-314158 NO AUTHORITYRATED SATISFACTORYHAZMAT
Verified linksmonsonco.comFMCSA SAFER

Equipment

Haulable capacity (power units only — trailers are towed context), equipment mix, and the VIN-decoded unit roster. Click any VIN to trace that unit across every carrier that has run it.

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150)
3
Observed power (24 mo)
—
Trailers (towed)
—

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.