Carrier profile · USDOT 332428 · MC-241053 · Updated Jul 18, 2026
533823 Ontario Limited
DBA SONS TRANSFER
5 power unitsTHORNBURY, ON50/100
CARRIER INACTIVEMC-241053 INACTIVERATED SATISFACTORYHAZMAT
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 357093 BLUE MOUNTAINS-MEAFORD TOWNLINE, THORNBURY, ON, N0H 2P0
- Mailing address
- P O BOX 144, CLARKSBURG, ON, N0H 1J0
- Operation
- Interstate· Hazmat
Contact
- Phone
- (519) 379-4927
- Cell
- (519) 379-4927
- Fax
- (519) 599-7396
- Web domain
- sonstransfer.com
Registration
- Officer
- Blair Mackey
- USDOT / docket
- 332428 · MC-241053
- First registered
- Nov 18, 1988
- Last MCS-150
- Jun 30, 2026 · 369,688 mi (2025)
- FMCSA safety rating
- Satisfactory · Sep 23, 1992
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.