Trucking Companies in Siren, WI
Siren, WI has 10 registered for-hire trucking companies as of May 2026, making it one of Wisconsin'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
10 carriers broken down by power-unit count and operation type in Siren, WI.
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 Siren, WI freight market
Siren, WI is home to 10 registered for-hire motor carriers, of which 10 (100.0%) hold active operating authority as of May 2026. According to FMCSA records, the average fleet size among Siren carriers is 8.4 power units, reflecting a market dominated by owner-operators and small fleets. The Siren carrier population contributes to Wisconsin's broader freight economy, which the Bureau of Labor Statistics ranks among the nation's largest by trucking employment.
The fleet composition in Siren shows 37 single-truck operators (370.0% of all carriers) alongside 0 carriers operating fleets of 101+ power units. Other operations represent the largest segment with 57 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 2 carriers received new operating authority in the past 6 months, while 21 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 Siren 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 10 Siren 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 Siren, WI
Ranked by fleet size (power units). Top 3 featured. Showing 10 of 10 total carriers.
Siren Bus Company INC has operated for 10.3y with 58 power units and 28 drivers under Carrier authority.
Engstrom Construction INC has operated for 22.9y with 11 power units and 12 drivers under Carrier authority.
P&J Utility Construction has operated for 0.2y with 6 power units and 7 drivers under Carrier authority.
Siren Country Campers LLC has operated for 21.2y with 3 power units and 2 drivers under Carrier authority.
Crex Construction LLC has operated for 0.1y with 1 power units and 1 drivers under Carrier authority.
Southside Auto Repair Incorporated has operated for 16.7y with 1 power units and 1 drivers under Common + Contract authority.
James Beam has operated for 17.6y with 1 power units and 1 drivers under Carrier authority.
Siren Assembly Of God Church INC has operated for 6.6y with 1 power units and 4 drivers under Carrier authority.
Sams Motor Express INC has operated for 21.2y with 1 power units and 1 drivers under Contract authority.
Randy Carey has operated for 4.5y with 1 power units and 4 drivers under Common authority.
All Siren carriers — complete directory
10 carriers total. Page 1 of 1. Sorted by fleet size descending.
| # | Carrier | MC # | DOT # | Fleet | Auth. age | Type | Safety | Status |
|---|---|---|---|---|---|---|---|---|
| 01 | Siren Bus Company INC Siren, WI | MC1559901 | 2854747 | 58 | 10.3y | Dry van | 99 | Active |
| 02 | Engstrom Construction INC Siren, WI | - | 1151324 | 11 | 22.9y | Dry van | 99 | Active |
| 03 | P&J Utility Construction Siren, WI | - | 4544533 | 6 | 0.2y | Dry van | 95 | Active |
| 04 | Siren Country Campers LLC Siren, WI | - | 1355281 | 3 | 21.2y | Dry van | 95 | Active |
| 05 | Crex Construction LLC Siren, WI | - | 4577347 | 1 | 0.1y | Dry van | 95 | Active |
| 06 | Southside Auto Repair Incorporated Siren, WI | MC690569 | 1934158 | 1 | 16.7y | Dry van | 95 | Active |
| 07 | James Beam Siren, WI | - | 1820232 | 1 | 17.6y | Dry van | 95 | Active |
| 08 | Siren Assembly Of God Church INC Siren, WI | - | 3353751 | 1 | 6.6y | Dry van | 95 | Active |
| 09 | Sams Motor Express INC Siren, WI | MC591741 | 1343341 | 1 | 21.2y | Dry van | 95 | Active |
| 10 | Randy Carey Siren, WI | MC1625513 | 3765816 | 1 | 4.5y | Dry van | 95 | Active |
Truck Graph carrier directory. Data from FMCSA operating authority records. View methodology
Find Siren carriers by equipment type
Browse specialized carriers operating in Siren, WI by trailer and equipment classification.
Explore the Wisconsin carrier directory
Siren is one of the top freight markets in Wisconsin. Browse the full Wisconsin trucking company directory to find carriers across all cities, or return to the national carrier index to compare states.
Nearby freight markets in Wisconsin
Siren trucking questions
Answers verified against FMCSA records.
How many trucking companies are in Siren, Wisconsin?
Siren, WI has 10 registered for-hire motor carriers as of May 2026. Of these, 10 hold active operating authority from the FMCSA.
What is the average fleet size in Siren?
The average fleet size among Siren carriers is 8.4 power units. Approximately 37 carriers operate a single truck, while 0 operate fleets of 101+ units.
How many Siren carriers have risk indicators?
Truck Graph identifies 0 active risk indicators among Siren-based carriers. These indicators are derived from authority history patterns, insurance filing anomalies, and known chameleon carrier behaviors.
How do I verify a Siren 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 Siren?
Siren'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 10 Siren 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.