Carrier profile · USDOT 1443598 · Updated Jun 13, 2026
GREGG DRILLING AND TESTING INC
113 power unitsSIGNAL HILL, 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 registration email domain with other carriers
@greggdrilling.com — 3 carriers: USDOT 746637USDOT 3173922
Shares a company officer with other carriers
john gregg — 7 carriers: USDOT 746637USDOT 1297763USDOT 2706027USDOT 2748869USDOT 2863628USDOT 3809131
Owner / group view· confidence: email domain + officer
Owner / group view
Affiliated authorities
Collapses 8 related authorities · joined by email domain + officer
- Authorities
- 8
- Combined power
- 246
- States
- 3
- Oldest authority
- May 6, 1998
- Active now
- 5
- GREGG DRILLING AND TESTING INC· viewingUSDOT 1443598113PU
- GREGG DRILLING LLCUSDOT 3173922104PU
- GREGG IN SITU INCUSDOT 74663719PU
- PITCHER DRILLING COUSDOT 28636286PU
- TOP PRIORITY INCUSDOT 12977631PU
- MATTRESS LAND INCUSDOT 27488691PU
- JOHN GREGGUSDOT 38091311PU
- IMAGE SERVICES INCUSDOT 27060271PU
Affiliated entities· hover to preview