Carrier profile · USDOT 2502538 · Updated Jun 13, 2026
Ronald Curtis Wood
DBA J R ASSOCIATES GROUP
2 power unitsPITTSBURG, 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
- 2252 CONCORD DRIVE, PITTSBURG, CA, 94565
- Mailing address
- 1647 WILLOW PASS ROAD 522, CONCORD, CA, 94520
- Operation
- Interstate
Contact
- Phone
- (925) 246-4300
- Cell
- (925) 586-7548
- Fax
- (925) 246-4302
- rwood@trofholz.com
- Web domain
- trofholz.com
Registration
- Officer
- Ron Wood
- USDOT / docket
- 2502538
- First registered
- May 5, 2014
- Last MCS-150
- May 5, 2014
- FMCSA safety rating
- Not rated
- D-U-N-S
- 831184507
Fleet (self-reported · MCS-150)
—CDL drivers
—Annual mileage
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.