Carrier profile · USDOT 438631 · Updated Jun 13, 2026

KNOWLES INDUSTRIAL SERVICES CORP

7 power unitsRegional · 3 statesGORHAM, ME93/100
AUTHORITY STATUS UNKNOWNRATED 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

Operation
Interstate· Hazmat

Contact

Fax
(207) 854-4996
Web domain
knowlesindustrial.com

Registration

Officers
Daniel C. Maloney · Susan L Collins
USDOT / docket
438631
First registered
Mar 11, 1991
Last MCS-150
Jan 15, 2025 · 91,748 mi (2024)
FMCSA safety rating
Satisfactory · Jun 21, 2002
D-U-N-S
61005351

Fleet (self-reported · MCS-150)

7Power units
30Drivers
3CDL drivers
91,748Annual mileage

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.