Seth Brian Fensterstock (USDOT 3578561)
DBA Windows Only LLC
USDOT 3578561 · Active · Rockville · MD
Public listing
- Legal name
- Seth Brian Fensterstock
- License or register id
- USDOT 3578561
- Status
- Active
- State
- MD
- City
- Rockville
- Category
- Private Property
- Phone
- +1 (301) 654-0853
- Address
- 401 Gruenther Ave, Rockville, MD, 20851-1535
- Official source
- FMCSA Company Census
Verify this record on the official source named above before you hire, fund, or rely on it. An index listing is not an endorsement, a rating, or a review. Empty phone or address means that public file did not include it.
Census fleet
- Power units
- 1
- Drivers
- 2
- Operation
- Interstate
- Classification
- Private Property
- Census status
- Active
- Trucks
- 1
- MCS-150 mileage
- 39600 (2025)
- MCS-150 date
- 20260514
- Fleet size
- 1 power units
- Hazmat
- No
- Company officer
- Seth Fensterstock
- Mailing address
- 401 Gruenther Ave, Rockville, MD, 20851-1535
Company Census fields (fleet, safety, cargo, officers, mailing). VIN/plate come from SMS Input joins when present.
About
Seth Brian Fensterstock is in the FMCSA Company Census as USDOT 3578561. census status Active. address 401 Gruenther Ave, Rockville, MD, 20851-1535. 1 power units. 2 drivers. Private Property. Interstate operation. Source: public FMCSA Company Census. Not an FMCSA endorsement.
How to verify
How do I verify Seth Brian Fensterstock?
Match the legal name and USDOT 3578561 on FMCSA SAFER. BrokerMafia republishes the public Motus and Company Census record and does not endorse the firm.
What does this listing show?
Operating authority, USDOT, census fleet, and insurance filings when those fields are on the FMCSA extract.

