Carrier profile · USDOT 393305 · Updated Jun 13, 2026
TWIN TOWER SERVICE
DBA WINEGAR WORKS
1 power unitGUTTENBERG, IA50/100
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
- 703 SOUTH HIWAY US-52, GUTTENBERG, IA, 52052
- Mailing address
- P O BOX 788, GUTTENBERG, IA, 52052-0788
- Operation
- Intrastate (Hazmat)· Hazmat
Contact
- Phone
- (563) 252-2050
Registration
- Officers
- Gary Stirn · Eric Stirn
- USDOT / docket
- 393305
- First registered
- May 14, 1990
- Last MCS-150
- Apr 10, 2026 · 100 mi (2025)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 22185227
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.