CORNERSTONE CONSTRUCTION OF SEATTLE INC

USDOT 1913872 · Issaquah, WA · Underwriter-grade risk snapshot

Operating statusActive

Lead priorityUnknown

Fleet3 power units · 4 drivers (3 trucks)

OperationC · PRIVATE PROPERTY

Current insurer—

Crashes / Inspections (24 mo)0 / 2

	Vehicle	Driver
This carrier	50.0% (1/2)	100.0% (2/2)
National average	22.3%	6.7%

⚠️ Above national average. Carriers with high OOS rates face premium surcharges and are more likely to shop for new insurance.

Address25910 SE OLD BLACK NUGGET ROAD
ISSAQUAH WA 98029

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Power units3

Drivers4 (2 CDL)

MCS-150 mileage20,000 (2025)

MCS-150 filedDec 31, 2025

HazmatN

Total inspections2

Out-of-service3

Vehicle OOS rate50.0%

Driver OOS rate100.0%

Total violations9

OOS violations0

Total crashes0

Fatal crashes0

Injuries0

Insurance agent? CORNERSTONE CONSTRUCTION OF SEATTLE INC — get the full WA lead list.

Data as of Thu Oct 15 2026 00:00:00 GMT+0000 (Coordinated Universal Time). Source: FMCSA public filings, refreshed daily by Insight Carrier.