Transformer Service INC

Doing business as T S I
USDOT 30728 · MC477866 · Concord, NH
USDOT ActiveCommon authorityHazmatSafety: Satisfactory
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Company snapshot
Legal name
Transformer Service INC
DBA
T S I
USDOT number
30728
MC docket
MC477866
Physical address
74 Regional Drive, Concord, NH, 03301-8508
Power units
4
Drivers
2
Operation
Interstate
Operating radius
Interstate 100+ mi
Cargo
General Freight, Liquids/Gases, Other
Operation class
Authorized For-Hire, Private Property
Last MCS-150 filing
Aug 26, 2024
Operating authority (as of 5/2026)
Common authority
Active
Broker authority
Not held
Authority granted
Jun 1, 1974
Insurance on file
Insurer (writing paper)
Key Risk Insurance Company
Filing form
BMC-91X
Coverage amount
$1,000,000
BI/PD on file
$5,000,000

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Safety record
FMCSA safety rating
Satisfactory
Roadside inspections (24 mo)
2
Out-of-service inspections
0
Inspections with violations
1
BASICs with acute/critical violations
0
SMS population
Interstate
Common questions

Is Transformer Service INC insured?

Yes. Transformer Service INC (USDOT 30728) has active BI/PD liability insurance on file with FMCSA, currently written by Key Risk Insurance Company, with $1,000,000 in coverage on the filing.

What insurance company does Transformer Service INC use?

Transformer Service INC's current BI/PD filing is written by Key Risk Insurance Company. Insurer changes show up in the daily-refreshed federal filing record.

What is Transformer Service INC's MC number?

Transformer Service INC's FMCSA docket is MC477866, paired with USDOT 30728.

Is Transformer Service INC safe to work with?

Transformer Service INC's FMCSA safety rating is Satisfactory, with 2 roadside inspections in the last 24 months, 0 of the five public BASICs carrying an acute or critical violation from an FMCSA investigation. The full inspection-level record is on this page.

How many trucks does Transformer Service INC operate?

Transformer Service INC reports 4 power units and 2 drivers in its latest MCS-150 census filing.

Source: FMCSA census, Licensing & Insurance (L&I) and SMS publications, mirrored and refreshed daily. Record last synced Sep 21, 2026. Native Base is not affiliated with FMCSA; always confirm against the live federal record before binding.

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