Trucking Companies in Rock Valley, IA
Rock Valley, IA has 92 registered for-hire trucking companies as of June 2026, making it one of Iowa'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
92 carriers broken down by power-unit count and operation type in Rock Valley, IA.
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 Rock Valley, IA freight market
Rock Valley, IA is home to 92 registered for-hire motor carriers, of which 92 (100.0%) hold active operating authority as of June 2026. According to FMCSA records, the average fleet size among Rock Valley carriers is 5.6 power units, reflecting a market dominated by owner-operators and small fleets. The Rock Valley carrier population contributes to Iowa's broader freight economy, which the Bureau of Labor Statistics ranks among the nation's largest by trucking employment.
The fleet composition in Rock Valley shows 49 single-truck operators (53.3% of all carriers) alongside 1 carriers operating fleets of 101+ power units. Other operations represent the largest segment with 114 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 1 carriers received new operating authority in the past 6 months, while 56 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 1 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 1 active risk indicators among Rock Valley carriers (1.09% 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 92 Rock Valley 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
All Rock Valley carriers — complete directory
5 safe-to-tender carriers · 1 pages · Sorted by fleet size.
| # | Carrier | City | DOT # | Fleet | Auth. age | Type | Safety | Status |
|---|---|---|---|---|---|---|---|---|
| 01 | Timothy Van Tilburg Rock Valley, IA | MC870272 | 2509514 | 11 | 12 yr | Dry van | 0 | Active |
| 02 | Van Zee Enterprises INC Rock Valley, IA | MC403192 | 224340 | 5 | 43 yr 7 mo | Dry van | 0 | Active |
| 03 | Pieper Trucking LLC Rock Valley, IA | MC1674737 | 4300472 | 2 | 1 yr 8 mo | Dry van | 0 | Active |
| 04 | Anderson Trucking Company LLC Rock Valley, IA | MC857251 | 2477862 | 1 | 12 yr 3 mo | Dry van | 0 | Active |
| 05 | Koenen Kustom LLC Rock Valley, IA | MC1653926 | 4262267 | 1 | 1 yr 11 mo | Dry van | 0 | Active |
Truck Graph carrier directory. Data from FMCSA operating authority records. View methodology
Find Rock Valley carriers by equipment type
Browse specialized carriers operating in Rock Valley, IA by trailer and equipment classification.
Explore the Iowa carrier directory
Rock Valley is one of the top freight markets in Iowa. Browse the full Iowa trucking company directory to find carriers across all cities, or return to the national carrier index to compare states.
Nearby freight markets in Iowa
Rock Valley trucking questions
Answers verified against FMCSA records.
How many trucking companies are in Rock Valley, Iowa?
Rock Valley, IA has 92 registered for-hire motor carriers as of June 2026. Of these, 92 hold active operating authority from the FMCSA.
What is the average fleet size in Rock Valley?
The average fleet size among Rock Valley carriers is 5.6 power units. Approximately 49 carriers operate a single truck, while 1 operate fleets of 101+ units.
How many Rock Valley carriers have risk indicators?
Truck Graph identifies 1 active risk indicators among Rock Valley-based carriers. These indicators are derived from authority history patterns, insurance filing anomalies, and known chameleon carrier behaviors.
How do I verify a Rock Valley 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 Rock Valley?
Rock Valley'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 92 Rock Valley 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.