Carrier profile · USDOT 398407 · Updated Jun 13, 2026

GUARDIAN TREE EXPERTS

18 power unitsROCKVILLE, MD50/100
AUTHORITY STATUS UNKNOWN
Verified linksFMCSA SAFER

Identity & Federal

The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.

Location

Physical address
12200 NEBEL ST, ROCKVILLE, MD, 20852-2614
Operation
Interstate

Contact

Phone
(301) 881-8550
Email
—

Registration

USDOT / docket
398407
First registered
Jun 27, 1990
Last MCS-150
Sep 2, 2008 · 0 mi
FMCSA safety rating
Not rated
D-U-N-S
57369878

Fleet (self-reported · MCS-150)

18Power units
19Drivers
—CDL drivers
—Annual mileage

MCS-150 filing history· biennial-update cadence

Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.