Ralph Williams Service LLC

Doing business as Ralph'S Towing
USDOT 503813 · MC954686 · Slinger, WI
USDOT ActiveCommon authorityHazmat
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Company snapshot
Legal name
Ralph Williams Service LLC
DBA
Ralph'S Towing
USDOT number
503813
MC docket
MC954686
Physical address
3581 Wi 175, Slinger, WI, 53086
Power units
6
Drivers
4
Operation
Interstate
Operating radius
Interstate 100+ mi
Cargo
Motor Vehicles, Driveaway/Towaway
Operation class
Authorized For-Hire, Exempt For-Hire
Last MCS-150 filing
May 13, 2025
Operating authority (as of 5/2026)
Common authority
Active
Broker authority
Not held
USDOT registered
Nov 9, 1992
MCSIP step
0
Insurance on file
Insurer (writing paper)
Pioneer Specialty Insurance Company
Filing form
BMC-91X
Coverage amount
$1,000,000
BI/PD on file
$1,000,000
Estimated renewal window
Q2 2027

Verified in MOTUS on Sep 27, 2026: the filings above were reconciled with FMCSA’s live registration record on that date.

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Safety record
FMCSA safety rating
Not rated
Roadside inspections (24 mo)
1
Out-of-service inspections
1
Inspections with violations
1
Crashes (24 mo)
1
BASICs with acute/critical violations
0
SMS population
Interstate
Common questions

Is Ralph Williams Service LLC insured?

Yes. Ralph Williams Service LLC (USDOT 503813) has active BI/PD liability insurance on file with FMCSA, currently written by Pioneer Specialty Insurance Company, with $1,000,000 in coverage on the filing.

What insurance company does Ralph Williams Service LLC use?

Ralph Williams Service LLC's current BI/PD filing is written by Pioneer Specialty Insurance Company. Insurer changes show up in the daily-refreshed federal filing record.

What is Ralph Williams Service LLC's MC number?

Ralph Williams Service LLC's FMCSA docket is MC954686, paired with USDOT 503813.

Is Ralph Williams Service LLC safe to work with?

Ralph Williams Service LLC's FMCSA safety rating is not rated (most carriers never receive one), with 1 roadside inspections in the last 24 months, 1 recorded crashes, 0 of the five public BASICs carrying an acute or critical violation from an FMCSA investigation. The full inspection-level record is on this page.

When does Ralph Williams Service LLC's insurance renew?

Based on its filing history, Ralph Williams Service LLC's BI/PD policy is estimated to renew in Q2 2027. The exact estimated X-date, with alerts when it changes, is in Market Tracker. Unlock USDOT 503813’s exact X-date →

How many trucks does Ralph Williams Service LLC operate?

Ralph Williams Service LLC reports 6 power units and 4 drivers in its latest MCS-150 census filing.

Source: FMCSA census, Licensing & Insurance (L&I) and SMS publications, mirrored and refreshed daily. Record last synced Oct 13, 2026. Native Base is not affiliated with FMCSA; always confirm against the live federal record before binding.

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