Trucking Companies in Thermopolis, WY
Thermopolis, WY has 16 registered for-hire trucking companies as of May 2026, making it one of Wyoming's largest carrier markets by operating authority count. This figure includes active, inactive, and revoked authorities tracked by the Federal Motor Carrier Safety Administration (FMCSA).
Source: FMCSA operating authority and compliance records. Truck Graph analysis. View methodology
Fleet size and equipment distribution
16 carriers broken down by power-unit count and operation type in Thermopolis, WY.
Fleet size distribution
By registered power-unit count. Source: FMCSA carrier census. View methodology
Operation type breakdown
Classification by carrier operation type and hazmat endorsement status. View methodology
About the Thermopolis, WY freight market
Thermopolis, WY is home to 16 registered for-hire motor carriers, of which 16 (100.0%) hold active operating authority as of May 2026. According to FMCSA records, the average fleet size among Thermopolis carriers is 12.8 power units, reflecting a market dominated by owner-operators and small fleets. The Thermopolis carrier population contributes to Wyoming's broader freight economy, which the Bureau of Labor Statistics ranks among the nation's largest by trucking employment.
The fleet composition in Thermopolis shows 21 single-truck operators (131.3% of all carriers) alongside 0 carriers operating fleets of 101+ power units. Other operations represent the largest segment with 43 carriers. This distribution is consistent with FMCSA's national pattern where approximately 91% of registered carriers operate fewer than 6 power units (FMCSA Industry Snapshot, 2024).
Authority tenure data reveals 3 carriers received new operating authority in the past 6 months, while 25 carriers have maintained continuous authority for 20+ years. New entrants face elevated scrutiny under FMCSA's New Entrant Safety Assurance Program, which mandates an 18-month monitoring period including at least one safety audit. The presence of 0 carriers with prior revocations on record underscores the importance of verifying authority status before tendering freight — a carrier's historical compliance record is publicly available through the FMCSA SAFER System.
Truck Graph identifies 0 active risk indicators among Thermopolis carriers (0.00% of the population), flagged through cross-referencing authority history, insurance filing patterns, and known chameleon carrier behaviors. The FMCSA defines chameleon carriers as entities that "successively obtain and relinquish operating authority to evade enforcement actions." Shippers and brokers should verify carrier authority, insurance coverage, and safety ratings before every load tender — Truck Graph's Risk Check tool provides instant verification against all available compliance data.
Sources: FMCSA.dot.gov, BLS Trucking Industry Data, FMCSA SAFER System. Data verified as of .
Authority age distribution
Years since initial FMCSA authority grant date. View methodology
Risk and compliance overview
Risk indicators and fleet composition across 16 Thermopolis carriers.
Fleet size vs carrier count
Carrier population by fleet tier. Source: FMCSA census data. View methodology
Equipment type share
Based on operation type classification and endorsements. View methodology
Largest carriers in Thermopolis, WY
Ranked by fleet size (power units). Top 3 featured. Showing 16 of 16 total carriers.
Ryan Bros Trucking INC has operated for 52.0y with 75 power units and 44 drivers under Contract authority.
Big Co has operated for 52.0y with 50 power units and 16 drivers under Carrier authority.
Jadeco INC has operated for 18.2y with 29 power units and 19 drivers under Carrier authority.
Smith Oilfield Service INC has operated for 26.6y with 14 power units and 20 drivers under Contract authority.
D & A Construction INC has operated for 28.7y with 8 power units and 4 drivers under Common authority.
Advanced Line Systems INC has operated for 18.3y with 5 power units and 8 drivers under Carrier authority.
Brewster Viles & Mary Louise Agar has operated for 27.7y with 5 power units and 2 drivers under Carrier authority.
Mccumber Well Service INC has operated for 28.5y with 5 power units and 6 drivers under Carrier authority.
Tumbleweed Propane INC has operated for 13.4y with 4 power units and 2 drivers under Carrier authority.
Double Time Luggage LLC has operated for 0.7y with 2 power units and 2 drivers under Carrier authority.
All Thermopolis carriers — complete directory
16 carriers total. Page 1 of 1. Sorted by fleet size descending.
| # | Carrier | MC # | DOT # | Fleet | Auth. age | Type | Safety | Status |
|---|---|---|---|---|---|---|---|---|
| 01 | Ryan Bros Trucking INC Thermopolis, WY | MC227958 | 101191 | 75 | 52.0y | Dry van | 99 | Active |
| 02 | Big Co Thermopolis, WY | - | 100348 | 50 | 52.0y | Dry van | 99 | Active |
| 03 | Jadeco INC Thermopolis, WY | - | 1748111 | 29 | 18.2y | Dry van | 99 | Active |
| 04 | Smith Oilfield Service INC Thermopolis, WY | MC671691 | 833402 | 14 | 26.6y | Dry van | 99 | Active |
| 05 | D & A Construction INC Thermopolis, WY | MC701900 | 704901 | 8 | 28.7y | Dry van | 95 | Active |
| 06 | Advanced Line Systems INC Thermopolis, WY | - | 1735413 | 5 | 18.3y | Dry van | 95 | Active |
| 07 | Brewster Viles & Mary Louise Agar Thermopolis, WY | - | 772228 | 5 | 27.7y | Dry van | 95 | Active |
| 08 | Mccumber Well Service INC Thermopolis, WY | - | 718486 | 5 | 28.5y | Dry van | 95 | Active |
| 09 | Tumbleweed Propane INC Thermopolis, WY | - | 2365112 | 4 | 13.4y | Dry van | 95 | Active |
| 10 | Double Time Luggage LLC Thermopolis, WY | MC1759733 | 4461852 | 2 | 0.7y | Dry van | 95 | Active |
| 11 | Dse Oilfield Services INC Thermopolis, WY | MC782123 | 2290279 | 2 | 14.2y | Dry van | 95 | Active |
| 12 | O Transport LLC Thermopolis, WY | - | 4567863 | 1 | 0.1y | Dry van | 95 | Active |
| 13 | Adam Day Thermopolis, WY | - | 3806925 | 1 | 4.3y | Dry van | 95 | Active |
| 14 | Robert W Stewart Thermopolis, WY | - | 1293760 | 1 | 21.7y | Dry van | 95 | Active |
| 15 | S & K Livestock LLC Thermopolis, WY | MC1706379 | 4334196 | 1 | 1.5y | Dry van | 95 | Active |
| 16 | Wallingford Trucking Shiloh Wallingford LLC Thermopolis, WY | MC596178 | 1607942 | 1 | 19.3y | Dry van | 95 | Active |
Truck Graph carrier directory. Data from FMCSA operating authority records. View methodology
Find Thermopolis carriers by equipment type
Browse specialized carriers operating in Thermopolis, WY by trailer and equipment classification.
Explore the Wyoming carrier directory
Thermopolis is one of the top freight markets in Wyoming. Browse the full Wyoming trucking company directory to find carriers across all cities, or return to the national carrier index to compare states.
Nearby freight markets in Wyoming
Thermopolis trucking questions
Answers verified against FMCSA records.
How many trucking companies are in Thermopolis, Wyoming?
Thermopolis, WY has 16 registered for-hire motor carriers as of May 2026. Of these, 16 hold active operating authority from the FMCSA.
What is the average fleet size in Thermopolis?
The average fleet size among Thermopolis carriers is 12.8 power units. Approximately 21 carriers operate a single truck, while 0 operate fleets of 101+ units.
How many Thermopolis carriers have risk indicators?
Truck Graph identifies 0 active risk indicators among Thermopolis-based carriers. These indicators are derived from authority history patterns, insurance filing anomalies, and known chameleon carrier behaviors.
How do I verify a Thermopolis trucking company?
Use Truck Graph's DOT Lookup tool to instantly verify any carrier's authority status, insurance coverage, and safety record. You can also check the FMCSA SAFER System directly at safer.fmcsa.dot.gov.
What types of trucking companies operate in Thermopolis?
Thermopolis's carrier population includes other, dry van / mixed operations. The market serves general freight, specialized, and regional distribution needs.
Is Truck Graph data reliable?
Truck Graph compiles data from FMCSA authority records, insurance filings, inspection histories, and crash reports. Data refreshes continuously from verified federal sources. All 16 Thermopolis carriers are cross-referenced against multiple compliance databases.
For journalists and researchers
Truck Graph data is open and citable. For press inquiries, contact our editorial team.
