Carrier profile · USDOT 4289501 · Updated Aug 16, 2026

Capstone Mechanical LLC

4 power unitsPORTSMOUTH, NH50/100

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

4Power units

Self-reported · MCS-150

—Trailers seen

None observed · 24 mo

—Avg age (yr)

Not yet decoded

Call dispatch(603) 319-8389 Email dispatchroconnor@cstonemechanical.com

Click to see how we scored it

Load decision · FMCSA snapshot · Aug 16, 2026

Limited record

Not enough federal record to assess. Verify authority and insurance directly.

Watch · 2

USDOT registration inactiveThe USDOT record is flagged inactive — the carrier may not be authorized to operate.No inspection history despite active fleetAn established carrier reporting 4 power units has no roadside inspections — a common shell/paper-carrier signal.

In good standing · 0

Nothing flagged.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo—

No inspections · 24 mo

Crashes · fatal—

No crash record

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo—

No inspections · 24 mo

Crashes · fatal—

No crash record

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Small fleet

4 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

—

Not yet decoded

Identity stabilityStable

2 yr unchanged

Same registration since 2024 — no chameleon / reincarnation signal.

What we know

This carrier has a federal identity but no operating activity on the record. Everything the FMCSA holds is below — we're not drawing empty charts around it.

On the federal record· FMCSA census + L&I

USDOT: 4289501
USDOT registration: InactiveMCS-150 update overdue
Registered: Aug 30, 20242 years ago
Domicile: PORTSMOUTH, NH
Self-reported fleet: 4 power units4 drivers
Last MCS-150: Aug 30, 2024
Phone: (603) 319-8389

Why this record is thin· what the federal datasets return

No roadside inspections on the FMCSA record — so there is no out-of-service rate, no BASIC percentile and no violation history to show.
No equipment observed in inspections — so no VIN-decoded units, fleet age or trailer count.
No inspection geography — so no operating footprint or lane map.
No insurance filing history on record — so no coverage limit, insurer or continuity timeline to chart.

An absent record is not a clean record. Verify operating authority and insurance directly with FMCSA — and request a certificate of insurance — before tendering a load.

Federal record →Authority & insurance →

Verification summaryAuthority, insurance, safety and identity facts for CAPSTONE MECHANICAL LLC.

CAPSTONE MECHANICAL LLC (USDOT 4289501) is unrated by Vektor because the carrier's FMCSA record does not contain enough evidence for a safety score as of Aug 16, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Aug 16, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Aug 16, 2026.

The carrier received 0 roadside inspections in the last 24 months — 0 vehicle-level and 0 driver-level, according to FMCSA roadside-inspection data refreshed Aug 16, 2026.

It reports 4 power units and 4 drivers in its most recent MCS-150 filing dated Aug 30, 2024.

It has no FMCSA-assigned safety rating in the federal record refreshed Aug 16, 2026.

Frequently asked

What is CAPSTONE MECHANICAL LLC's USDOT number?

CAPSTONE MECHANICAL LLC's USDOT number is 4289501.

Is CAPSTONE MECHANICAL LLC authorized to operate?

As of Aug 16, 2026, CAPSTONE MECHANICAL LLC is inactive in the FMCSA register.

How big is CAPSTONE MECHANICAL LLC's fleet?

CAPSTONE MECHANICAL LLC operates 4 power units and 4 drivers per its most recent MCS-150 filing.

Where is CAPSTONE MECHANICAL LLC based?

CAPSTONE MECHANICAL LLC is based in PORTSMOUTH, NH.

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