THOS SOMERVILLE CO
USDOT 6789
Active, interstate carrier, mid-size fleet (77 power units) — safety rating: satisfactory.
Vetting summary
At a glance
- Out-of-service rate8.9% vs 19.1% national avg
- Crashes (24 months)1 reported — involvement does not imply fault
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 6789 |
|---|---|
| MC Number | — |
| Legal Name | THOS SOMERVILLE CO |
| DBA Name | — |
| Entity Type | CORPORATION |
| Phone | 3013909575 |
| Address | 16155 TRADE ZONE AVENUE, Upper Marlboro, MD, 20774 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | S — Satisfactory (rated 20080225) |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Our scoring
Safety scores
| Unsafe Driving | 83 / 100 |
|---|---|
| Hours-of-Service Compliance | 0 / 100 |
| Driver Fitness | 88 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 66 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 90 |
|---|---|
| Out-of-Service Rate | 8.9% vs 19.1% national average |
| Crashes | 1 total (0 fatal, 1 with injuries, 1 towaway) |
- 2025-08-26 — VA — 2 injured, towaway
Most frequent violation categories: 12 (12), 20 (7), 51 (7).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Equipment
Fleet & operations
| Power Units (trucks) | 77 |
|---|---|
| Drivers | 77 |
| Recent Annual Mileage | 1,442,748 |
| Last MCS-150 Filing | 16-JUL-24 |
THOS SOMERVILLE CO operates 77 power units — a larger fleet than 100% of carriers registered in MD.
Nearby
Other carriers in Upper Marlboro, MD
- CAPITAL LIGHTING AND SUPPLY INC — USDOT 341782, 155 power units
- DAVENPORT INSULATION CO INC — USDOT 435301, 97 power units
- CRANE SERVICE COMPANY INC — USDOT 84219, 92 power units
- JOHN E KELLY & SONS ELECTRICAL CONSTRUCTION INC — USDOT 357542, 90 power units
- MCHALE LANDSCAPE DESIGN — USDOT 470576, 86 power units
Browse all carriers in Upper Marlboro, MD or all MD carriers.