T S I
Transformer Service Inc · Concord, NH · Interstate
Motor Carrier
✓ Authority Active
4
Power units
2
Drivers
3
Roadside inspections
Services
What we move
For-hire trucking
Authorized interstate freight transportation with a fleet of 4 power units.
Property freight
Federal authority on file to haul general property freight.
Interstate operations
Operating scope on federal record: interstate, based out of NH.
Derived from federal registrations. Claim this page to list your exact equipment and lanes.
Fleet & safety
The operation
Fleet photos from transformer-svc.com
3
Inspections
Aug 20, 2026
Most recent
Feb 20, 2024
Earliest on file
| Date | State | Level |
|---|---|---|
| Aug 20, 2026 | NH | Level III — Driver-only |
| Dec 18, 2025 | NH | Level II — Walk-around |
| Feb 20, 2024 | VA | Level II — Walk-around |
About
Who we are
T S I is an interstate motor carrier based in Concord, NH.
“With over 70 years of experience, Transformer Service, Inc. offers complete testing, maintenance, and repair services to electrical substation and distribution equipment including transformers, regulators, reclosers, switchgear, circuit breakers, and relays to customers throughout the U.S.”— in their own words, from transformer-svc.com
Auto-written from federal records. Claim this page to tell your own story and add your team.
Contact
Work with T S I
Address
74 Regional Drive
Concord, NH 03301-8508
Phone
(603) 224-4006
DA•••@T•••.COM
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Claim T S I — free →Authority history (2 actions)
- Reinstated — Motor Property Common Carrier
- Granted — Motor Property Common Carrier