Carrier profile · USDOT 609043 · MC-342339 · Updated Jun 13, 2026

STILES ENVIRONMENTAL TESTING INC

2 power unitsROCKFORD, IL50/100
AUTHORITY STATUS UNKNOWNMC-342339 STATUS UNKNOWN
Verified linksFMCSA SAFER

Identity & Federal

The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.

Location

Physical address
202 WEST STATE STREET #502, ROCKFORD, IL, 61101
Operation
Interstate

Contact

Phone
(815) 969-9993
Email
—

Registration

Officer
Douglas Stiles
USDOT / docket
609043 · MC-342339
First registered
Jul 26, 1995
Last MCS-150
Mar 9, 2004 · 22,584 mi (1999)
FMCSA safety rating
Not rated
D-U-N-S
—

Fleet (self-reported · MCS-150)

2Power units
3Drivers
3CDL drivers
22,584Annual mileage

MCS-150 filing history· biennial-update cadence

Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.