FMCSA Carrier Profile
THOS SOMERVILLE CO
Owner / Officer: Michael Leisher
Active
Satisfactory
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Satisfactory
0th pct · 50 inspections on record
✓ No risk flags found on authority or insurance records
Vetting Notes
THOS SOMERVILLE CO is an active FMCSA-registered motor carrier based in Upper Marlboro, Maryland, operating under DOT 6789. No high-severity flags were found on authority or insurance records. Across 50 FMCSA inspections on record, this carrier shows 9.8% vehicle OOS and 13.6% driver OOS. Authority and safety history are clean as of this page's last update.
FMCSA Registration
DOT Number
6789
Operating Status
Active
Safety Rating
Satisfactory
Entity Type
Corporation
MCS-150 Filed
July 16, 2024
FMCSA Registration
June 1, 1974
Annual Mileage
1,442,748 mi (2023)
Contact Information
Address
16155 Trade Zone Avenue, Upper Marlboro, MD 20774
Phone
Email
Owner / Officer
Michael Leisher
Officer 2
Doug Riley
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Safety Percentile
0th percentile
vs. peer carriers
✓ Below FMCSA alert threshold (65th pct) · lower percentile = fewer violations than peers · source: FMCSA SMS
Safety & Inspection Summary
Total Inspections
50
Driver Inspections
22
Vehicle Inspections
41
Total OOS Orders
7
Violations by Category
Vehicle Maintenance13
Unsafe Driving6
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate13.6% · national avg 5.5%
⚠ Above national average (8.1pp higher)
Vehicle OOS Rate9.8% · national avg 20.7%
✓ Below national average
Inspection Trend by Year
2026
2025
2024
Inspection Records (50)
| Date | State | Level | Vehicle | Viol. | Status |
|---|---|---|---|---|---|
| October 31, 2025 | MD | Level II — Walk-Around | MACK · 1M2MDBAA8SS017740 | 0 | Clean |
| October 30, 2024 | MD | Level II — Walk-Around | FRHT · 3ALACWFB4KDKE9998 | 0 | Clean |
| June 30, 2025 | MD | Level II — Walk-Around | MACK · 1M2MDBAA5SS016898 | 0 | Clean |
| January 30, 2025 | MD | Level II — Walk-Around | MACK · 1M2MDBAA1SS016896 | 0 | Clean |
| January 29, 2025 | MD | Level II — Walk-Around | MACK · 1M2MDBAA1SS016896 | 0 | Clean |
| May 28, 2024 | MD | Level II — Walk-Around | PTRB · 2NP2HM6X1NM776055 | 0 | Clean |
| March 28, 2025 | MD | Level III — Driver Only | KW · 2NK3HM6X7PM236772 | 0 | Clean |
| August 28, 2025 | PA | Level III — Driver Only | PTRB · 2NP2HM6X1NM776055 | 0 | Clean |
| April 28, 2026 | PA | Level III — Driver Only | KENWORTH · 2NK3HM6X6PM236780 | 0 | Clean |
| April 28, 2026 | MD | Level II — Walk-Around | MACK · 1M2MDBAA2TS019680 | 0 | Clean |
| April 28, 2025 | MD | Level II — Walk-Around | KENWORTH · 2NKHHM6XXMM467957 | 1 | Passed |
| May 27, 2026 | MD | Level II — Walk-Around | MACK · 1M2MDBAA2TS019680 | 0 | Clean |
Showing 12 of 50 inspection records
Other Carriers in Upper Marlboro, MD
Data sourced from FMCSA MCMIS via Socrata. Last updated: July 29, 2026.
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