Zum
Zum Services Inc · San Francisco, California · Carrier number 3373523
2,959
power units
2,959
power units
Zum is a freight and passenger carrier based in San Francisco, California with 2,959 power units and 2,240 drivers as reported, the 97th largest trucking fleet in the US and the 3rd largest in California. In the 24 months to Sep 30, 2026 it had 63 reportable crashes (2.13 per 100 power units vs 2.98 for all carriers).
Updated Oct 11, 2026 · crashes and inspections to Sep 30, 2026
Power units
2,959
#3 in CA
Drivers
2,240
2,240 with commercial license
Crashes, 24 mo
63
0 fatal
Per 100 trucks
2.13
All carriers: 2.98
Vehicles out of service
3.8%
All inspections: 22.8%
Inspections, 24 mo
3,252
88% with no violation
Compared with other carriers
Crash rate over 24 months per 100 power units, and the share of roadside inspections that took the vehicle or driver off the road
| Crashes / 100 trucks | Vehicles OOS | Drivers OOS | |
|---|---|---|---|
| Zum | 2.13 | 3.8% | 0.0% |
| Carriers with 10+ trucks in CA | 2.30 | 14.2% | 4.0% |
| Carriers with 10+ trucks, US | 2.98 | 19.3% | 3.6% |
| All roadside inspections | - | 22.8% | 6.4% |
Lower is better. Carriers that drive more miles per truck can have more crashes per truck.
Crashes, 24 months
0 people killed and 71 injured
- Fatal0
- Injury34
- Tow-away29
Roadside inspections, 24 months
Inspections and how many ended out of service
| Kind | Inspections | Out of service | Rate |
|---|---|---|---|
| Driver | 34 | 0 | 0.0% |
| Vehicle | 3,249 | 125 | 3.8% |
Carrier facts
- Carrier number
- 3373523
- Based in
- San Francisco, California
- Registered
- Dec 23, 2019
- Operation
- Across state lines
- Carries
- Freight and passengers
- Authority for hire
- Active
- Safety rating
- Satisfactory (Dec 8, 2023)
- Miles driven
- 18.3 million (2024)
- Type
- For hire, Private passenger business, Private passenger nonbusiness, Private property
- Cargo
- Other, Passengers
- Last update filed
- Jan 22, 2026
Questions and answers
How many trucks does Zum have?
Zum reports 2,959 power units (trucks, tractors and buses) and 2,240 drivers, 2,240 of them with a commercial license. That is the 97th largest fleet among US trucking carriers. Its trucks drove 18.3 million miles in 2024.
Is Zum a safe carrier?
In 24 months Zum had 63 reportable crashes, 2.13 per 100 power units (below the 2.98 of all carriers with 10+ trucks). 3.8% of its vehicle inspections took the truck off the road (all inspections: 22.8%). Its latest official safety rating is Satisfactory (Dec 8, 2023). A crash record does not say who caused the crash.
Reportable crashes of trucks and buses: a death, an injury or a vehicle towed away. A crash record does not say who caused the crash. Recent months can still grow as late reports arrive. Out-of-service rate: the percent of roadside inspections that took the driver or the vehicle off the road until a serious problem was fixed. Carriers with few inspections have rates that swing a lot. Fleet, drivers and miles as the carrier reported them. Official public data, updated daily.