Carrier profile · USDOT 380738 · Updated Jul 16, 2026
KOSTMAYER CONSTRUCTION, LLC
2 power unitsLocal · 1 statesSLIDELL, LA50/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT
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
- 1080 OLD SPANISH TRL, SLIDELL, LA, 70458-5002
- Operation
- Interstate· Hazmat
Contact
- Phone
- (985) 639-3575
- Cell
- (504) 415-1620
- Fax
- (504) 837-8878
- Web domain
- kostmayer.com
Registration
- Officer
- James H Kostmayer Jr
- USDOT / docket
- 380738
- First registered
- Feb 5, 1990
- Last MCS-150
- Aug 6, 2025 · 70,000 mi (2024)
- FMCSA safety rating
- Satisfactory · Feb 5, 2007
- D-U-N-S
- 626637326
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.