Carrier profile · USDOT 565318 · Updated Jun 13, 2026
R W Warner Inc
DBA WARNER MECHANICAL - WARNER CONSTRUCTION - KAEMPF AND HARRIS CUSTOM SHEETMETAL
7 power unitsavg 14.6 yrLocal · 1 statesFREDERICK, MD100/100
AUTHORITY STATUS UNKNOWNHAZMAT
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
- 217 MONROE AVENUE, FREDERICK, MD, 21701-3113
- Operation
- Interstate· Hazmat
Contact
- Phone
- (301) 662-5387
- Cell
- (240) 698-1492
- Fax
- (301) 698-0451
- Web domain
- rwwinc.com
Registration
- Officers
- Matthew M Warner · Joseph A Frank
- USDOT / docket
- 565318
- First registered
- Jun 6, 1994
- Last MCS-150
- Oct 1, 2025 · 120,000 mi (2025)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 3427499
Fleet (self-reported · MCS-150)
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.