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Truck Graph
0/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
Summit Stump Grinding
DOT 4439538 · Comstock, WI
Report generated: June 8, 2026 at 1:20 AM
✗Authorized for hire?
✗Active insurance?
✓Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

Summit Stump Grinding (DOT 4439538) is a Wisconsin-based intrastate carrier headquartered in Comstock, WI. As of June 8, 2026 at 1:20 AM, operating authority is active but without for-hire authority. TruckGraph has detected 1 risk signal on this carrier, including: no active insurance filing on record. TruckGraph rates this carrier "Do Not Tender" based on FMCSA compliance data, inspection history, insurance status, and network connection analysis. Last synced: June 8, 2026 at 1:20 AM.

FMCSA Public Record
Corwin Nightingale
Operating as: Summit Stump Grinding
DOT Number4439538
MC Number—
Street1774 6 1/2 ST
City / StateComstock, WI 54826-9733
Phone7154189872
Operation typeIntrastate
HazmatNot authorized
Authority age10 mo
MCS-150 filed07/16/2025
Company officerCorwin Grant Nightingale
Power units1
Total drivers1
Authority Status
Common (for-hire)—
Contract (for-hire)—
Broker—
TruckGraph Intelligence
Risk Signals
●No active insurance filing on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
Network Intelligence Map
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Power Units
1
Fleet
Drivers
1
Total
Inspections
0
On record
Crashes
0
On record
OOS Rate
—
↓ Avg 22.26%
Authority Age
10 mo
Since 2025
Inspection History
0 total · No inspections

No inspection records on file.

Crash History
0 total on record

No crash records on file.

Insurance Status
⚠ No active insurance filing on record
Verify insurance directly with carrier before tendering any load.
Location
1774 6 1/2 ST, Comstock, WI, 54826-9733 · Open in Maps →
1774 6 1/2 ST, COMSTOCK, WI, 54826-9733Open in Maps →
Authority Timeline
Authority GrantedJul 2025
FMCSA issued operating authority
Active USDOT — No for-hire authorityCurrent
USDOT record is active but no for-hire operating authority is currently granted

Source: FMCSA compliance records, inspection data, crash records, insurance filings, and TruckGraph analysis. View methodology

Important Legal Notice

Data sourced from FMCSA public records and TruckGraph independent analysis. This is not legal advice, not a guarantee of carrier safety, and not a compliance certification. Verify through official FMCSA sources before tendering. Last synced: .

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Frequently Asked Questions

Is Corwin Nightingale authorized to operate?

Corwin Nightingale's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is Corwin Nightingale's safety record?

Corwin Nightingale does not have a substantial inspection history on record. This may indicate limited interstate operations.

How many trucks does Corwin Nightingale operate?

Corwin Nightingale operates 1 power units with approximately 1 drivers.

Is Corwin Nightingale insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has Corwin Nightingale had any risk indicators?

Corwin Nightingale has a risk score of 0/100 (Monitor) with 1 active risk signal. Review the risk section above and verify independently before tendering.

What is the DOT number for Corwin Nightingale?

Corwin Nightingale's DOT number is 4439538. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Summit Stump Grinding Safety Record, DOT 4439538. Retrieved from https://truckgraph.com/carriers/4439538
MLA
"Summit Stump Grinding Safety Record, DOT 4439538." Truck Graph, Jun 8, 2026, https://truckgraph.com/carriers/4439538
Chicago
"Summit Stump Grinding Safety Record, DOT 4439538." Truck Graph. Last modified June 8, 2026. https://truckgraph.com/carriers/4439538