MS & SONS CORP
AUTHORIZEDUSDOT
133751
MC Number
143871
Fleet Size
40
Total Drivers
42
FMCSA-derived snapshot updated: September 13, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
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Safety overview
MS & SONS CORP is a mid-size interstate motor carrier based in HUMBOLDT, Iowa, operating 40 power units with 42 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 0.0% comes in under the 6.7% national average. They have 2 crashes on file. FMCSA records show 35 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Iowa is 7.4% and the average vehicle OOS rate is 29.9% across 26,539 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- Yes
- Safety Rating Date
- N/A
Inspections
35
Total
73%
Driver %
Insurance on file
Liability (BIPD)
Starstone Specialty Insurance Company — eff. Sep 1, 2025
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Source: FMCSA Motus. Imported Aug 4, 2026. Verify current filings directly with FMCSA before relying on them.
Crash history
2
Total Crashes
Similar carriers in Iowa
Other carriers in the same state with a similar fleet size.
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Frequently asked questions
Is MS & SONS CORP authorized to operate?
CarrierOwl's FMCSA-derived snapshot for MS & SONS CORP (USDOT #133751) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is MS & SONS CORP's safety record?
MS & SONS CORP has 35 inspections in CarrierOwl's current imported snapshot and 2 matching crashes. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does MS & SONS CORP operate?
MS & SONS CORP operates 40 power units with 42 drivers on file. That puts them in the mid-size range.
Does MS & SONS CORP transport hazardous materials?
Yes. MS & SONS CORP is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.
Where is MS & SONS CORP located?
MS & SONS CORP is based in HUMBOLDT, Iowa at 1605 SASSY LANE, 50548. Phone: (515) 332-3303.
What are MS & SONS CORP's out-of-service rates?
MS & SONS CORP's driver out-of-service rate is 0.0%, compared with the 6.7% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record. Their vehicle out-of-service rate is 15.4%, compared with the 23.4% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record.