Carrier profile · USDOT 2889410 · Updated Aug 20, 2026

Pro Tech Utilities Inc

DBA GRID-LOCK INC

10 power unitsavg 10.3 yrLocal · 2 statesLINTHICUM, MD74/100
AUTHORITY STATUS UNKNOWNHAZMAT
Verified linksFMCSA SAFER

Operations & Lanes

Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal
revealed
States observed2
US states
Inspections · 24 mo22
MD busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
LINTHICUM, MD
622 N HAMMONDS FERRY RD
Top corridor
MD
MD 21 · VA 1
Density
fewermore
Shade = roadside inspections, last 24 mo.

State activity ranking· all 2 states · trailing 24 mo

Roadside inspections by state · PRO TECH UTILITIES INC · trailing 24 months
StateCoverageInspections
MDMarylandHQ21
VAVirginia1