KNOWLES INDUSTRIAL SERVICES CORP
Operations
What KNOWLES INDUSTRIAL SERVICES CORP’s FMCSA record shows
Each field from the public registration, and what it means when you’re vetting this carrier.
- USDOT number 438631
- The USDOT number is FMCSA's permanent ID for this company. It never changes, even when the business renames, moves, or changes owners, so it's the most reliable way to identify KNOWLES INDUSTRIAL SERVICES CORP.
- MC number None on file
- No MC number is on file. That's normal for private fleets hauling their own goods and for intrastate-only carriers, but a company with no MC number can't legally haul regulated interstate freight for hire.
- Operating status Active
- FMCSA lists this USDOT number as active. Active status alone doesn't confirm current insurance or operating authority; those are separate checks.
- Operation type Interstate
- Interstate carriers can haul freight across state lines and fall under the full federal safety rules (FMCSRs).
- Fleet size 7 power units, 30 drivers
- KNOWLES INDUSTRIAL SERVICES CORP self-reports 7 power units (trucks and tractors), which makes it a small fleet. Fleet counts come from the carrier's own MCS-150 filing and aren't independently audited.
- Last MCS-150 update Jan 15, 2025
- The MCS-150 is the registration form where carriers report their address, fleet size, and operations. KNOWLES INDUSTRIAL SERVICES CORP last filed it on Jan 15, 2025. That's within FMCSA's two-year update requirement, so the company details here are reasonably current.
Safety profile
FMCSA BASIC percentiles, inspection history, and out-of-service rates.
Full safety report
All 7 FMCSA BASIC percentiles, recent inspection records, vehicle & driver out-of-service rates — free with any account.
Crash history
State-reportable crashes, severity breakdown, and time-decayed analysis.
Crash history
Individual crash records with date, severity (fatal / injury / tow-away), and fleet-normalized rate.
Insurance & compliance
Active policy coverage, insurance carrier, effective dates, and historical gaps.
Insurance details
BI&PD coverage, cargo insurance, insurance carrier name, effective dates — a critical pre-booking check.
Authority & cross-reference
Authority revocation history and chameleon carrier detection across 4.4M records.
Authority & cross-reference
Every authority grant, revocation, and reinstatement — plus chameleon flags from address / officer / phone matches.
Frequently asked questions about KNOWLES INDUSTRIAL SERVICES CORP
Common questions about this carrier, answered from FMCSA public records.
Is KNOWLES INDUSTRIAL SERVICES CORP a legitimate motor carrier?
KNOWLES INDUSTRIAL SERVICES CORP is registered with FMCSA under USDOT number 438631. Operating authority status is currently Active.
Where is KNOWLES INDUSTRIAL SERVICES CORP based?
KNOWLES INDUSTRIAL SERVICES CORP lists its physical address in GORHAM, ME in FMCSA records. The physical state and city fields are provided by the carrier on their MCS-150 form.
Is USDOT 438631 active?
USDOT 438631 (KNOWLES INDUSTRIAL SERVICES CORP) operating authority status is currently Active. Last verified by Carrier90 on April 17, 2026. Data is sourced from live FMCSA federal records.
How many trucks does KNOWLES INDUSTRIAL SERVICES CORP operate?
KNOWLES INDUSTRIAL SERVICES CORP reports 7 power units and employs 30 drivers to FMCSA. These figures come from the carrier's most recent MCS-150 filing.
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Nearby USDOT numbers
- AMA TRUCKING AND SERVICES LLC DOT 438628
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- TRI-FAST SYSTEMS INC DOT 438630
- AAA PRESTIGE MOVERS DOT 438632
- A SMITH M PERRONE DOT 438633
- S J BELL CONSTRUCTION CO INC DOT 438634
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