DAVID MASON AND ASSOCIATES INC
ST LOUIS, MO
11/25/2013
44
Power Units
22
Drivers
Current
as of today
Active · 44 power units · 22 drivers · St Louis, MO
2026
~Jun 2026
Fleet grew 15 → 44 power units
2025
Aug 18, 2025
MCS-150 biennial update filed
Reported mileage: 100,000 (2020)
Reported power units: 15 → 44
Reported drivers: 19 → 22
2024
Oct 7, 2024
MCS-150 biennial update filed
Reported mileage: 100,000 (2020)
Reported power units: 13 → 15
Reported drivers: 19
Aug 14, 2024
MCS-150 biennial update filed
Reported mileage: 100,000 (2020)
Reported power units: 13
Reported drivers: 24 → 19
~Mar 2024
Legal name changed
DAVID MASON & ASSOCIATES INC → DAVID MASON AND ASSOCIATES INC
2023
Aug 7, 2023
MCS-150 biennial update filed
Reported mileage: 100,000 (2020)
Reported power units: 12 → 13
Reported drivers: 28 → 24
2022
Oct 26, 2022
MCS-150 biennial update filed
Reported mileage: 100,000 (2020)
Reported power units: 18 → 12
Reported drivers: 31 → 28
2021
Apr 27, 2021
MCS-150 biennial update filed
Reported mileage: 100,000 (2020)
Reported power units: 25 → 18
Reported drivers: 35 → 31
2019
Apr 24, 2019
MCS-150 biennial update filed
Reported mileage: 160,000 (2018)
Reported power units: 25
Reported drivers: 35
2013
Nov 25, 2013
DOT registered
Company registered with the FMCSA.