PRO TECH UTILITIES INC
dba GRID-LOCK INC
LINTHICUM, MD
05/12/2016
21
Power Units
22
Drivers
Current
as of today
Active · 21 power units · 22 drivers · Linthicum, MD
2026
~Sep 2026
Phone changed
4105995346 → 4106360181
~Sep 2026
Fleet grew 10 → 21 power units
~Sep 2026
Driver count changed 9 → 22
2025
Dec 4, 2025
MCS-150 biennial update filed
Reported mileage: 30,000 (2017)
Reported power units: 10 → 21
Reported drivers: 9 → 22
Reported trailers: 8 → 17
Dec 3, 2025
MCS-150 biennial update filed
Reported mileage: 30,000 (2017)
Reported power units: 10
Reported drivers: 9
Reported trailers: 8
2024
~Mar 2024
Address changed: PIKESVILLE, MD → LINTHICUM, MD
7801 GREENSPRING AVE, PIKESVILLE, MD 21208 → 622 N HAMMONDS FERRY RD, LINTHICUM, MD 21090
2023
Oct 16, 2023
MCS-150 biennial update filed
Reported mileage: 30,000 (2017)
Reported power units: 10
Reported drivers: 9
Reported trailers: 8
2022
Apr 13, 2022
MCS-150 biennial update filed
Reported mileage: 30,000 (2017)
Reported power units: 10
Reported drivers: 9
2021
Feb 11, 2021
MCS-150 biennial update filed
Reported mileage: 30,000 (2017)
Reported power units: 10
Reported drivers: 9
2016
May 12, 2016
DOT registered
Company registered with the FMCSA.