Rock Solid Materials Inc
Operating legally, with 2 flags to weigh
Authority and insurance are in order. Registered less than a year ago: New entrants are a common vector for double brokering and fraud. No roadside inspections in 24 months: Too little history to judge on-road safety.
How we scored it · 5 factors
Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.
Safety
FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026No roadside inspections or reportable crashes in the last 24 months, and not rated by FMCSA.
Enforcement
FMCSA closed casesClosed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.
Equipment
Operations & cargo
Identity & federal record
FMCSA census · MCS-150- USDOT
- 4578373
- MC / docket
- MC-1822101, MC-53743666
- Legal name
- Rock Solid Materials Inc
- DBA
- —
- Entity type
- Carrier & Broker
- Operation
- Interstate
- First registered
- May 5, 2026
- Last MCS-150
- May 6, 2026
- Safety rating
- Not rated
- Drivers (CDL)
- 58 (29)
- Hazmat
- No
- Business type
- —
Fraud & network signals
For review, not a verdict.
- Rock Solid Stabilization & Reclamation Inc · USDOT 1633451 · McHenry, IL
Shared contact details can mean affiliated companies or a registration service, but they are also a common sign of chameleon carriers and identity theft. Confirm you're dealing with the company you expect.
Frequently asked
What is Rock Solid Materials Inc's USDOT number?
Rock Solid Materials Inc's USDOT number is 4578373 and its docket number is MC1822101.
Is Rock Solid Materials Inc authorized to operate?
Yes. FMCSA shows active carrier and broker operating authority.
What is Rock Solid Materials Inc's safety record?
No roadside inspections or reportable crashes in the last 24 months. Not rated by FMCSA.
How big is Rock Solid Materials Inc's fleet?
29 power units and 58 drivers per its MCS-150 filed May 6, 2026.
What insurance does Rock Solid Materials Inc carry?
$750,000 in BIPD liability coverage is on file with Zurich American Insurance Company.
Where is Rock Solid Materials Inc located?
Rock Solid Materials Inc is located at 1001 Williams Rd, Genoa City, WI, 53128. Phone: (262) 240-4100.
Similar carriers in Wisconsin
All Wisconsin carriers →Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.