THOS SOMERVILLE CO

THOS SOMERVILLE CO is a mid-sized fleet, operating 77 power units and 77 drivers, organized as a corporation, based in Upper Marlboro, MD. Across 92 roadside inspections in the last 24 months, the fleet's 9.8% out-of-service rate sits below the 19.4% national average, with 1 reportable crash. An active insurance filing is on record, and no operating authority record was located.

Brokers & shippers · booking check

Book with caution — review signals below

No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Caution
Review these
  • OOS mixed vs peers Driver 3.40% (worse, peer 0.90%) · Vehicle 8.50% (better, peer 17.6%) — one mixed line, not dual better/worse claims. Details →
  • 2 fatalities on crash record 30 FMCSA-reportable crashes on file. Details →
On file
  • Satisfactory FMCSA safety rating
Built for brokers and shippers deciding whether to tender. Always confirm on FMCSA SAFER and L&I before booking — TruckCodex mirrors public filings and can lag by up to a day.
Plain-text risk summary (print / paste)
TruckCodex risk summary — THOS SOMERVILLE CO (USDOT 6789)
Verdict: CAUTION
Book with caution — review signals below
No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Authority / census status: Active

Blockers:
  (none)

Cautions:
  • OOS mixed vs peers — Driver 3.40% (worse, peer 0.90%) · Vehicle 8.50% (better, peer 17.6%) — one mixed line, not dual better/worse claims.
  • 2 fatalities on crash record — 30 FMCSA-reportable crashes on file.

On file:
  • Satisfactory FMCSA safety rating

Source: https://truckcodex.com/usdot/6789/
As of: Sep 16, 2026
Always confirm on FMCSA SAFER and L&I before tendering — TruckCodex mirrors public filings and can lag by up to a day.
USDOT 6789 Active CORPORATION PRIVATE PROPERTY Hazmat Satisfactory rated Company officer: MICHAEL LEISHER Company officer 2: DOUG RILEY Construction Other (PLUMBING AND HVAC) Based in UPPER MARLBORO, MD

FMCSA census as of Sep 16, 2026 · Sources · Freshness

TruckCodex · filing & peer scorecard

TruckCodex filing & peer scorecard · A

Composite of 4/5 scored components (mean 85/100). Separate from booking triage on this page. Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.

A confidence 80% · 4/5 signals · expand
Authority / census
Active · 100/100

Active census status with no OOS order or revoked authority on file.

Insurance / BIPD
NR

Insurance/BIPD signal not resolved for this carrier.

NR reason: No active policies and no uninsured flag to score against.

OOS vs peers
Mixed vs peers · 40/100

Driver OOS 3.4% vs peer median 0.9% (worse). Vehicle OOS 8.5% vs peer median 17.6% (better). n=13385 same-size ACTIVE peers.

FMCSA safety rating
Satisfactory · 100/100

Official FMCSA Satisfactory safety rating.

Insurance-watch tier
Not on watch · 100/100

No BMC-91 insurance-lapse watch classification on file for this USDOT.

TruckCodex filing & peer scorecard from authority, BIPD, peer OOS, FMCSA safety rating, and insurance-watch signals. Not a booking verdict and not legal advice. See methodology. Booking triage on this page: Caution.

Operating authority

No authority breakdown on file.

Insurance

No active policies on file.

BOC-3 agent

No BOC-3 filing on file.

Company profile

Company details
USDOT 6789
In FMCSA records since Jun 1, 1974 (~52y)
Entity CORPORATION
Company officer MICHAEL LEISHER
Company officer 2 DOUG RILEY
Operation PRIVATE PROPERTY
Hazmat Yes (MCS-150)
Cargo carried
Construction, Other (PLUMBING AND HVAC)
Fleet size 77 units
Drivers 77
Annual mileage 1,442,748 mi
Contact & address
Email: shirley
Physical
16155 TRADE ZONE AVENUE
UPPER MARLBORO, MD 20774
Mailing address matches physical.
Registration & safety rating
USDOT 6789
In FMCSA records since Jun 1, 1974 (~52y)
Entity CORPORATION
Operation PRIVATE PROPERTY
Annual mileage (MCS-150) 1,442,748 mi
Safety Rating Satisfactory
Hazmat Yes (MCS-150)
vs. National Average
Vehicle OOS Rate 8.5% vs 23.4% -14.9 pts
Driver OOS Rate 3.4% vs 6.7% -3.3 pts
Violations per Inspection 0.49 vs 1.80 -1.31
Peer tier (mid-sized fleets (11-100 power units)) median OOS rate: 27.5%
FMCSA cargo filing (BMC-34/83)

No active FMCSA cargo filing on file.

FMCSA L&I filing evidence — not a shipper certificate of insurance (COI). Cargo (BMC-34) is primarily an HHG / household-goods requirement; general freight carriers often have none.

Broker bond / trust (BMC-84/85)

No active broker surety bond or trust fund on file.

BMC-84 is a surety bond; BMC-85 is a trust-fund agreement. Required for property brokers / freight forwarders — not motor-carrier BIPD liability insurance.

Fleet details (MCS-150)

Vehicle type Owned Term leased Trip leased
Trucks 77 0 0

Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).

Accident reports (24 months)

All 30 crashes →
Last 6 months 6–12 months 12–24 months Total
Fatalities 0 0 0 0
Injuries 0 0 2 2
Tow-away 0 0 1 1
Crash reports 0 0 1 1

Reportable crashes from FMCSA MCMIS for the trailing 24 months. Counts may differ slightly from SAFER due to reporting lag.

Inspections (24 months)

All 140 inspections →
Driver Vehicle Hazmat
Inspections 92 92 0
OOS inspections 2 7 0
OOS percentage 2.17% 7.61%
National average 6.7% 23.4% 4.4%

Roadside inspections in the last 24 months. National averages are FMCSA MCSAP reference rates (driver ~6.7%, vehicle ~23.4%, hazmat ~4.4%).

Power Units
77
Drivers
77
Inspections
140
FMCSA roadside history on file
OOS Rate (peak)
8.5%
driver or vehicle, whichever higher
Crashes (24m)
1
30 all-time
Authorities
0
Carrier analysis & narrative context Status notes, risk intelligence, and safety profiles
Risk intelligence

THOS SOMERVILLE CO had 92 roadside inspections over the past 24 months with an out-of-service rate of 9.8%, which is below the national average of 19.4%. Their highest FMCSA BASIC percentile is Unsafe Driving at 1.0. 1 reportable crash occurred in the same 24-month window.

Inspection profile

92 roadside inspections over the last 24 months, concentrated in MD (60) and PA (16).

Violation profile

9.8% out-of-service rate, below the 19.4% national average; led by Vehicle Maintenance (20.0% of violations); top code 393.9(a) (Inoperable required lamps) cited 17 times, 4 of them OOS.

Fleet profile

The fleet comprises 77 power units (mid-sized fleet) and 77 drivers; Mack, Kenworth, and Freightliner are the most-inspected makes.

Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service

Compared against 13,385 ACTIVE carriers operating 38–116 power units (±50% of this carrier's 77 unit fleet).

This carrier — Driver OOS
3.4%
Drivers placed out-of-service at roadside inspections
Peer median
0.9%
Median across 13,385 same-size peers
Verdict
Riskier than peers
Delta +2.5 pts vs peer median (lower is safer)
This carrier — Vehicle OOS
8.5%
Vehicles placed out-of-service at roadside inspections
Peer median
17.6%
Median across 13,385 same-size peers
Verdict
Safer than peers
Delta -9.1 pts vs peer median (lower is safer)
Inspection Analytics Monthly activity · BASIC mix · state map

Monthly Inspection Activity (36 months)

2023-10 2026-09

Violations by BASIC Category

Federal BASIC buckets for every citation issued against this carrier over the past 24 months.

Activity by State

States this carrier has been inspected in over the past 24 months.
State Inspections OOS OOS % Last Inspection
Maryland (MD) 60 6 10.0% Sep 10, 2026
Pennsylvania (PA) 16 1 6.3% Aug 6, 2026
Delaware (DE) 4 0 0.0% Nov 14, 2025
Virginia (VA) 4 0 0.0% Nov 12, 2025
New Jersey (NJ) 3 0 0.0% Jan 9, 2026
District of Columbia (DC) 2 1 50.0% Aug 6, 2025
US (US) 2 1 50.0% Dec 22, 2025
West Virginia (WV) 1 0 0.0% Feb 26, 2026
Vehicle Fleet Top makes and models observed in roadside inspections
Make Model Inspections
Kenworth 35
Mack 34
Freightliner 24
Peterbilt 4
GMC 3
Dodge 2
Isuzu 2
Knnw 2
SMS BASIC Scores FMCSA Safety Measurement System per-BASIC scores
BASIC Inspections Serious Measure Percentile Alert As Of
Driver Fitness 5 0.32 0 Sep 14, 2026
Controlled Substances / Alcohol 0 0.00 0 Sep 14, 2026
Hours of Service 0 0.00 0 Sep 14, 2026
Unsafe Driving 9 1.29 1 Sep 14, 2026
Vehicle Maintenance 16 1.05 1 Sep 14, 2026

Higher percentiles indicate worse performance relative to peer carriers. Carriers at or above the FMCSA intervention threshold are marked ALERT.

Recent Inspections (140 rows) View all 140 →
Inspection # Date ▼ State Level Station Vehicle Violations Top Codes OOS
88966248 Sep 10, 2026 MD 1 DARLINGTON MD
MACK STRAIGHT TRUCK
1 393.75A3-TAOL Yes
88960782 Sep 8, 2026 MD 1 SYKESVILLE MD
MACK STRAIGHT TRUCK
0 No
88835819 Aug 27, 2026 MD 1 PERRYVILLE MD
KENWORTH STRAIGHT TRUCK
1 393.75A3-TAOL Yes
88647087 Aug 7, 2026 MD 1 1 390.19B2-BIENNIAL No
88625112 Aug 6, 2026 PA 1
MACK STRAIGHT TRUCK
0 No
88480822 Jul 21, 2026 MD 2
FREIGHTLINER STRAIGHT TRUCK
0 No
88230339 Jun 24, 2026 PA 3
KENWORTH STRAIGHT TRUCK
0 No
88043035 Jun 2, 2026 MD 2
MACK STRAIGHT TRUCK
0 No
87990291 May 27, 2026 MD 2
MACK STRAIGHT TRUCK
0 No
87717324 Apr 28, 2026 MD 2 EDGEWATER MD
MACK STRAIGHT TRUCK
0 No
87699838 Apr 28, 2026 PA 3 SOUTH WHITEHALL TOWNSHIP PA
KENWORTH STRAIGHT TRUCK
1 2-SLLTL No
87667206 Apr 23, 2026 MD 1 PERRYVILLE MD
KENWORTH STRAIGHT TRUCK
0 No
87612573 Apr 17, 2026 MD 2 PERRYVILLE MD
KENWORTH STRAIGHT TRUCK
2 75A3-TAOL, 9A-LSML Yes
87528548 Apr 6, 2026 MD 2 VIENNA MD
FREIGHTLINER STRAIGHT TRUCK
0 No
87390650 Mar 23, 2026 MD 1 EDGEWATER MD
KENWORTH STRAIGHT TRUCK
0 No
87310496 Mar 11, 2026 MD 2 ANNAPOLIS MD
KENWORTH STRAIGHT TRUCK
0 No
87211698 Mar 4, 2026 MD 2 PERRYVILLE MD
FREIGHTLINER STRAIGHT TRUCK
0 No
87200796 Feb 26, 2026 WV 2 MARTINSBURG WV
MACK STRAIGHT TRUCK
0 No
87013714 Feb 6, 2026 MD 2 QUEEN ANNE MD
FREIGHTLINER STRAIGHT TRUCK
0 No
86870482 Jan 21, 2026 MD 2 ANNAPOLIS MD
KENWORTH STRAIGHT TRUCK
0 No
87367543 Jan 9, 2026 NJ 2 NJ
MACK STRAIGHT TRUCK
1 392.2-SLLUCR No
86756355 Jan 9, 2026 MD 2 PERRYVILLE MD
KENWORTH STRAIGHT TRUCK
0 No
86755758 Jan 8, 2026 MD 2 ANNAPOLIS MD
KENWORTH STRAIGHT TRUCK
2 392.82DUMT, 393.203B-CBP No
86779746 Jan 7, 2026 PA 3
MACK STRAIGHT TRUCK
0 No
86735741 Dec 22, 2025 US 1 SUITLAND-SILVER HILL MD
RAM STRAIGHT TRUCK
Ticket: Dodge
7 391.41APC, 393.95F, 392.2-SLLS3 Yes
Recent Crashes (30 rows) View all 30 →
Report # Date ▼ State Fatalities Injuries Tow Hazmat Severity
VA0252380167 Aug 26, 2025 VA 0 2 Yes No Injury
PA210290900X Nov 1, 2022 PA 0 2 Yes No Injury
MD22A1004586 Oct 17, 2022 MD 0 0 Yes No Tow
MD22A0944031 Aug 30, 2022 MD 0 0 Yes No Tow
MD22A0912232 May 18, 2022 MD 0 1 Yes No Injury
PA105090800X May 20, 2021 PA 0 0 Yes No Tow
MD21A0768017 Feb 11, 2021 MD 0 0 Yes No Tow
DE0219007155 Jan 23, 2019 DE 0 0 Yes No Tow
DE0417069355 Oct 12, 2017 DE 0 1 Yes No Injury
PA610771800X Oct 7, 2016 PA 2 2 Yes No Fatal
VA0161470218 Feb 8, 2016 VA 0 0 Yes No Tow
VA0143605150 Dec 26, 2014 VA 0 1 Yes No Injury
PA408374800X Aug 28, 2014 PA 0 0 Yes No Tow
MD14A0017936 Jan 29, 2014 MD 0 1 Yes No Injury
VA0131055235 Apr 15, 2013 VA 0 0 Yes No Tow
PA200921700X Jan 18, 2012 PA 0 1 No No Injury
MD1110637065 Nov 29, 2011 MD 0 1 Yes No Injury
MD1112218475 Jul 8, 2011 MD 0 0 Yes No Tow
VA0110675066 Mar 7, 2011 VA 0 3 Yes No Injury
DC2007070607 May 29, 2007 DC 0 2 No No Injury
MD0409502336 May 19, 2004 MD 0 1 Yes No Injury
WV000007810A Feb 24, 2003 WV 0 2 Yes No Injury
PA108188600A Nov 13, 2001 PA 0 0 Yes No Tow
MD0007751016 Aug 7, 2000 MD 0 1 No No Injury
VA0000065213 Jan 19, 2000 VA 0 0 Yes No Tow
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for

Top Violation Codes Cited

Code Description Category Cited OOS
393.9(a) Inoperable required lamps Vehicle Maintenance 17 4
392.2 Violation of Local Laws Unsafe Driving 6 0
392.16(a) Failing to use seat belt (49 CFR) Unsafe Driving 3 0
391.41(a)(1) 391.41(a)(1) Driver Fitness 2 1
392.82(a)(1) Using a hand-held mobile telephone while operating a CMV Unsafe Driving 2 0
391.11(b)(4) Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or excepted intrastate with the state driver's licensing agency. Driver Fitness 1 1
391.41(a) Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency. History of either failing to produce a medical certificate or having an expired medical certificate. Driver Fitness 1 0
393.11 No or defective lighting devices or reflective material as required Vehicle Maintenance 1 0
393.110 Failing to meet minimum tiedown requirements Vehicle Maintenance 1 1
393.19 Inoperative/Defective Hazard Warning Lamp Vehicle Maintenance 1 0

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