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City Statistics

Active Trucking Companies
in Rock Springs, WY

172 active carriers, brokers & freight companies. Located in Sweetwater County.

Rock Springs, WY FMCSA data • updated weekly 4.49% of Wyoming
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172
Active Trucking Companies
4.49% of all active carriers in Wyoming
24
New FMCSA Registrations (24 Mo.)
Avg 1.0 new companies per month (+40.0% YoY)
2
Median Fleet Size
Power units at the midpoint of all reporting companies
47.2%
Owner-Operator Rate
vs. 52.5% statewide in Wyoming
New FMCSA Registrations
123 Sep '24Mar '25Sep '25Mar '26Aug '26
24
Total
1.0
Avg / month
3
Best: Feb 2026
0
Lowest: Sep 2024
Company Size Distribution
163
Reporting
Fleets
1 Power Unit 77 47.2%
2–5 Units 60 36.8%
6–20 Units 15 9.2%
21–100 Units 11 6.7%
101+ Units 0 0.0%

Based on total power units reported to FMCSA. Median: 2 unit(s).

Company Age Distribution
13.4
Avg age
(years)
0–2 Years 28 16.7%
3–5 Years 29 17.3%
6–10 Years 32 19.0%
11–20 Years 41 24.4%
20+ Years 38 22.6%

Based on FMCSA registration date. Average age: 13.4 years.

Company Authority Types
Carrier 167 97.1%
Shipper 26 15.1%
Broker 13 7.6%
Freight Forwarder 5 2.9%
Cargo Tank 1 0.6%

A company may hold multiple authority types simultaneously.

Top 10 Cargo Types
# Cargo Type Companies % of City
1 General Freight 100 58.1%
2 Construction 62 36.0%
3 Oilfield Equipment 56 32.6%
4 Machinery & Large Objects 54 31.4%
5 Other 43 25.0%
6 Motor Vehicles 32 18.6%
7 Metal: Sheets & Coils 27 15.7%
8 Driveaway/Towaway 24 14.0%
9 Grain, Feed & Hay 23 13.4%
10 Dry Bulk Commodities 21 12.2%
Largest Fleets in Rock Springs
# Company Fleet
1 JOHN BUNNING TRANSFER COMPANY INC 82
2 GFT EXPRESS LLC 73
3 MOUNTAIN LINE INC 71
4 TM NATIONS LOGISTICS LLC 67
5 TM NATIONS LOGISTICS LLC 67
6 GREENE'S ENERGY SERVICES INC 58
7 LEGEND SERVICES INC 37
8 JERRY DIEMOZ 36
9 WIRE BROTHERS INC 31
10 READY OILFIELD SERVICE INC 29

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Data source: U.S. Federal Motor Carrier Safety Administration (FMCSA) — active carrier registrations. Last updated: August 26, 2026. Active status reflects carriers with FMCSA status code "A" at the time of data collection.