Carrier profile · USDOT 3433333 · MC-565733 · Updated Jun 13, 2026

SAPPHIRE MATERIALS INC

DBA THOMPSON BUILDING MATERIALS

12 power unitsavg 9.8 yrLocal · 1 statesRIPON, CA82/100
CARRIER INACTIVEMC-565733 INACTIVE
Verified linksthompsoncorp.comFMCSA SAFER

Operations & Lanes

Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal
revealed
States observed1
US states
Inspections · 24 mo19
CA busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
RIPON, CA
460 S STOCKTON AVE
Top corridor
CA
CA 19
Density
fewermore
Shade = roadside inspections, last 24 mo.

State activity ranking· all 1 states · trailing 24 mo

Roadside inspections by state · SAPPHIRE MATERIALS INC · trailing 24 months
StateCoverageInspections
CACaliforniaHQ19