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Knowles Industrial Services Corp (DOT# 438631) – FMCSA Carrier Profile

DOT# 438631● Active
Updated: 2026-03-09

Knowles Industrial Services Corp is a registered motor carrier with the FMCSA under USDOT number 438631. The company operates from Gorham, ME and maintains an active operating status with 7 power units and 30 drivers on record.

Safety Rating

FMCSA Safety Rating
✓ Satisfactory
Rated: June 21, 2002

Knowles Industrial Services Corp holds a "Satisfactory" safety rating from the Federal Motor Carrier Safety Administration (FMCSA). This rating indicates that the carrier has been found to comply with federal safety regulations based on the most recent compliance review conducted by FMCSA. View official FMCSA record →

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Company Information

Address295 New Portland Road, Gorham, ME, 04038
Phone(207) 854-1900
Emailscollins@knowlesindustrial.com
Entity TypePrivate Property
OperationInterstate
Power Units7
Drivers30
MCS-150 FiledJanuary 15, 2025
Annual Mileage91,748 mi (2024)
All carriers in Maine→Carriers in Gorham, ME→

Inspection Summary

All-time Inspections
All-time
7
Total
5
OOS
0
Driver OOS
5
Vehicle OOS
OOS Rate71.43%
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service.

BASICS Safety Scores

BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories
0.0
Unsafe Driving
0.0
HOS Compliance
0.1
Driver Fitness
0.0
Controlled Substances
3.4
Vehicle Maintenance
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Frequently Asked Questions

What is USDOT Number 438631?
USDOT number 438631 is assigned to Knowles Industrial Services Corp, an active motor carrier registered with the FMCSA, based in Gorham, ME.
What is the safety rating of Knowles Industrial Services Corp?
Knowles Industrial Services Corp has a safety rating of Satisfactory as of June 21, 2002.
How many inspections has Knowles Industrial Services Corp had?
Knowles Industrial Services Corp has recorded 7 total inspections with 5 out-of-service orders, representing an OOS rate of 71.43%.
Where is Knowles Industrial Services Corp located?
Knowles Industrial Services Corp is headquartered at 295 New Portland Road, Gorham, ME 04038.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 438631 · Last updated: 2026-03-09. View official FMCSA record →