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Trucking Companies in Yellowstone County
Active motor carriers whose principal place of business is in Yellowstone County, Montana.
- Active carriers
- 1,000
- Power units
- 5,119
- Trucks and tractors reported
- Drivers
- 4,231
- Interstate carriers
- 480
Carriers in Yellowstone County
Share of active carriers
- For hire (carry goods for others)53553.5%
- Private (carry their own goods)61461.4%
- Passenger carriers222.2%
- Hazardous materials21221.2%
Fleet size (power units)
- None reported979.7%
- 141441.4%
- 2 to 535435.4%
- 6 to 10626.2%
- 11 to 50585.8%
- 51 to 100111.1%
- More than 10040.4%
Fleet and driver counts are self-reported by each company on FMCSA Form MCS-150 and can be out of date. Values that look like typing errors (for example 99,999 trucks for a small company) are treated as not reported. Pages list companies registered as businesses; owner-operators registered as individuals are counted in totals but not named.
Largest carriers in Yellowstone County
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Frequently asked questions
- What is a USDOT number?
- The U.S. Department of Transportation number identifies a company that operates commercial vehicles hauling cargo or passengers in interstate commerce, and in many states for trips within the state too.
- What is a MC number?
- An MC (motor carrier) number is the operating authority FMCSA grants to for-hire carriers that move regulated goods or passengers across state lines. Private carriers hauling their own goods do not need one.
- What do the safety ratings mean?
- FMCSA rates a carrier Satisfactory, Conditional or Unsatisfactory after an on-site compliance review. Most carriers have never had a review and are unrated, which does not mean they are unsafe.
Source: Federal Motor Carrier Safety Administration, Company Census File · Last updated 10/22/2026