WITHERSPOON INDUSTRIES INC
dba PORTA-STOR
VENTURA, CA
06/12/2015
24 years, 9 months
5
Power Units
5
Drivers
Current
as of today
Inactive · 5 power units · 5 drivers · Ventura, CA
2026
~Jan 2026
Address changed
330 WEST PARK ROW AVENUE, VENTURA, CA 93001 → 330 WEST PARK ROW AVE, VENTURA, CA 93001
2025
Oct 27, 2025
MCS-150 biennial update filed
Reported mileage: 1 (2024)
Reported power units: 5
Reported drivers: 5
Reported trailers: 2
Oct 20, 2025
MCS-150 biennial update filed
Reported mileage: 200,000 (2022)
Reported power units: 5
Reported drivers: 5
Reported trailers: 2
2023
Dec 20, 2023
MCS-150 biennial update filed
Reported mileage: 200,000 (2022)
Reported power units: 5
Reported drivers: 5
Reported trailers: 2
Mar 21, 2023
MCS-150 biennial update filed
Reported mileage: 200,000 (2022)
Reported power units: 5
Reported drivers: 5
2022
Nov 9, 2022
MCS-150 biennial update filed
Reported mileage: 200,000 (2021)
Reported power units: 5
Reported drivers: 4 → 5
2021
Dec 10, 2021
MCS-150 biennial update filed
Reported mileage: 200,000 (2020)
Reported power units: 5
Reported drivers: 4
Aug 3, 2021
MCS-150 biennial update filed
Reported mileage: 200,000 (2020)
Reported power units: 5
Reported drivers: 4
Apr 19, 2021
MCS-150 biennial update filed
Reported mileage: 200,000 (2020)
Reported power units: 4 → 5
Reported drivers: 4
2019
May 15, 2019
MCS-150 biennial update filed
Reported mileage: 150,000 (2018)
Reported power units: 4
Reported drivers: 4
2015
Jun 12, 2015
DOT registered
Company registered with the FMCSA.
2003
Aug 17, 2003
Insurance cancelled with Northland Insurance Company
Form 34
Aug 17, 2003
Insurance cancelled with Northland Insurance Company
Form 91X, $750,000 coverage
2001
Sep 6, 2001
Insurance filed with Northland Insurance Company
Form 34
Sep 6, 2001
Insurance filed with Northland Insurance Company
Form 91X, $750,000 coverage