KARTHAUSER & SONS INC
KARTHAUSER & SONS INC is a corporation based in GERMANTOWN, WI, registered with the FMCSA under USDOT 275268. The carrier is currently active in FMCSA's records, and has not yet received a formal FMCSA safety rating. MCS-150 self-reporting puts the fleet at 11 power units and 15 drivers, with 2 roadside inspections on file. Use this page to verify the carrier's authority and insurance, review its inspection and crash history, and cross-reference live data on FMCSA SAFER before booking a load or onboarding a partner.
Carrier is unrated
FMCSA has not assigned this carrier a formal safety rating. Use the inspection history and BASIC scores below to assess on-road performance.
KARTHAUSER & SONS INC is a mid-sized fleet, operating 11 power units and 15 drivers, organized as a corporation, based in Germantown, WI. Across 2 roadside inspections in the last 24 months, the fleet recorded a 0.0% out-of-service rate, with no reportable crashes on file. no operating authority record was located.
Safety Snapshot
2 roadside inspections over the last 24 months, most heavily in WI (2 stops), with Level 3 inspections the most common.
0.0% out-of-service rate; led by Unsafe Driving (50.0% of violations); top code 392.2-SLLS3 (Speeding 11-14 mph over limit) cited 1 times.
The fleet comprises 11 power units (mid-sized fleet) and 15 drivers; Ford and Freightliner are the most-inspected makes.
Compliance
Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service
Compared against 94,188 ACTIVE carriers operating 6–17 power units (±50% of this carrier's 11 unit fleet).
Inspection Analytics Monthly activity · BASIC mix · state map
Monthly Inspection Activity (24 months)
Violations by BASIC Category
Activity by State
| State | Inspections | OOS | OOS % | Last Inspection |
|---|---|---|---|---|
| Wisconsin (WI) | 2 | 0 | 0.0% | Apr 9, 2025 |
Vehicle Fleet Top makes and models observed in roadside inspections
| Make | Model | Inspections |
|---|---|---|
| Ford | 1 | |
| Freightliner | 1 |
Recent Inspections (2 rows) View all 2 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 84380821 | Apr 9, 2025 | WI | 3 | NEWTON WI |
FREIGHTLIN STRAIGHT TRUCK
|
1 | 392.2-SLLTCD | No |
| 84059016 | Mar 4, 2025 | WI | 2 | OCONOMOWOC WI |
FORD STRAIGHT TRUCK
|
3 | 392.2-SLLS3, 393.95F, 396.17C-PI | No |
Recent Crashes (3 rows)
| Report # | Date ▼ | State | Fatalities | Injuries | Tow | Hazmat | Severity |
|---|---|---|---|---|---|---|---|
| WI0000117912 | Sep 15, 2022 | WI | 0 | 0 | Yes | Yes | Tow |
| WI0000036443 | May 8, 2002 | WI | 0 | 1 | Yes | Yes | Injury |
| WI000033705A | Jun 20, 2001 | WI | 0 | 0 | Yes | Yes | Tow |
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for
Most-Inspected Stations
| Station | State | Inspections | OOS |
|---|---|---|---|
| NEWTON WI | WI | 1 | 0 |
| OCONOMOWOC WI | WI | 1 | 0 |
Related Records Cross-references to every adjacent page
-
Wisconsin carriers
All carriers based in Wisconsin
-
Germantown carriers
Carriers based in Germantown, WI
-
Stations in Wisconsin
Where this carrier might be inspected
-
2 inspections
Full roadside inspection history
-
3 reportable crashes
FMCSA MCMIS crash log
-
Fleet recall search
NHTSA recalls covering this fleet's vehicle years/makes
-
File a complaint
Open the FMCSA National Consumer Complaint form for this carrier
-
Carrier comparison tool
Side-by-side vs. other carriers
-
Certificate lookup
Look up any FMCSA authority by MC/MX/FF docket number
-
All state carrier directories
Browse carriers in every US/CA/MX jurisdiction
-
How FMCSA safety ratings work
BASIC percentiles and compliance review context
-
BOC-3 process agents explained
Why every interstate carrier must file a process agent
-
FMCSA compliance filings guide
MCS-150, insurance, and authority filing requirements
-
Roadside inspection rights
What drivers and carriers can expect during a stop
How to verify KARTHAUSER & SONS INC
- Verify USDOT and MC numbers match the carrier's documents. Compare the USDOT number and MC docket on this page to the numbers on the carrier's invoice, rate confirmation, or load-board listing. A mismatch between the carrier's claimed numbers and the registered legal name is the single most common red flag.
- Check active operating authority and insurance status. Confirm the Authority Records show at least one ACTIVE docket for the type of operation you're booking, and that the Active Insurance card lists a current BIPD/Primary policy. A revoked authority or uninsured carrier cannot legally operate.
- Review safety rating and SMS BASIC scores. Check the carrier's FMCSA safety rating (if any) and the SMS BASIC table. A high percentile in any BASIC category — especially Unsafe Driving, HOS, or Vehicle Maintenance — is worth investigating before tendering a load.
- Examine inspection and crash history. Open the Inspection History and Crash History subpages for the full record. Look for patterns: repeat OOS findings on the same unit, multiple crashes in a short window, or violations clustered in one BASIC category.
- Cross-reference real-time data with FMCSA SAFER. For the most current snapshot — within 24 hours of any insurer filing or authority change — click through to the FMCSA SAFER lookup. TruckCodex mirrors SAFER and L&I daily; SAFER itself reflects filings within 24 hours.
Frequently asked questions about KARTHAUSER & SONS INC
Is KARTHAUSER & SONS INC an active motor carrier? ▾
What is KARTHAUSER & SONS INC's safety rating? ▾
How many inspections has KARTHAUSER & SONS INC had? ▾
What is KARTHAUSER & SONS INC's out-of-service rate? ▾
Where is KARTHAUSER & SONS INC based? ▾
Does KARTHAUSER & SONS INC have valid operating authority? ▾
How many trucks and drivers does KARTHAUSER & SONS INC operate? ▾
Has KARTHAUSER & SONS INC had any crashes? ▾
About FMCSA carrier records
Every commercial motor carrier operating in the United States is required to register with the Federal Motor Carrier Safety Administration (FMCSA) and obtain a USDOT number. The USDOT number is a permanent, unique identifier — once assigned, it stays with the carrier for life and is never reissued to another company. Carriers must update their registration every two years on Form MCS-150 to keep their address, fleet size, and operating data current.
Carrier safety data lives in FMCSA's Motor Carrier Management Information System (MCMIS): roadside inspections, crashes, out-of-service findings, and the seven Behavior Analysis and Safety Improvement Categories (BASICs) that make up the SMS scoring methodology. For-hire carriers must also hold operating authority — an MC, FF, or MX docket number — which is separate from the USDOT number and requires continuous insurance and BOC-3 process-agent filings to remain active.
TruckCodex mirrors FMCSA's public SAFER and L&I systems on a daily refresh cycle. Every record on this page reflects what FMCSA has on file. We do not edit or modify carrier data — for real-time confirmation immediately before a transaction, click through to the FMCSA SAFER lookup linked in the related records section above. Safety ratings, when present, come from formal compliance reviews; most active carriers have not been reviewed and are correctly listed as unrated.
Data sources & freshness
TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.