Carrier profile · USDOT 3922323 · Updated Jun 13, 2026
Sper Contracting Corporation
DBA RETAINING WALLS COMPANY
2 power unitsSAN DIEGO, CA50/100
AUTHORITY STATUS UNKNOWN
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
- 10990 AVENIDA DE LOS LOBOS, SAN DIEGO, CA, 92027
- Mailing address
- PO BOX 502908, SAN DIEGO, CA, 92150-2908
- Operation
- Intrastate (Non-Hazmat)
Contact
- Phone
- (760) 471-2500
- Web domain
- spercontracting.com
Registration
- Officers
- Thomas Klein · Van Davis
- USDOT / docket
- 3922323
- First registered
- Jul 22, 2022
- Last MCS-150
- Apr 8, 2026 · 25,000 mi (2023)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 1199782
Fleet (self-reported · MCS-150)
—CDL drivers
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.