Carrier profile · USDOT 4107970 · Updated Jun 13, 2026
O'BRIEN BROTHERS INC
DBA DRAIN-AID PLUMBING
0 power unitsSN BERNRDNO, CA50/100
AUTHORITY STATUS UNKNOWN
Network & Fraud
Reincarnation chains, shared-VIN links, common domains and officers, and owner-group affiliations — the chameleon / double-broker signals that name-and-USDOT lookups miss.
Shares a company officer with other carriers
richard o'brien — 4 carriers: USDOT 1391558USDOT 2182320USDOT 3421018
Owner / group view· confidence: officer
Owner / group view
Affiliated authorities
Collapses 4 related authorities · joined by officer
- Authorities
- 4
- Combined power
- 4
- States
- 4
- Oldest authority
- Jul 5, 2005
- Active now
- 2
- O'BRIEN BROTHERS INC· viewingUSDOT 41079700PU
- GCT SERVICES INCUSDOT 21823202PU
- SEMPER HEALTH SERVICES LLCUSDOT 34210181PU
- O'BRIEN BEVERAGEUSDOT 13915581PU
Affiliated entities· hover to preview