Carrier profile · USDOT 4190446 · Updated Aug 16, 2026
Powergrade Inc
DBA POWERHOUSE
0 power unitsONTARIO, 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
@powergradeinc.com — 3 carriers: USDOT 3130877USDOT 3131283
Shares a company officer with other carriers
christopher polk — 2 carriers: USDOT 3254110
Owner / group view· confidence: email domain + officer
Owner / group view
Affiliated authorities
Collapses 4 related authorities · joined by email domain + officer
- Authorities
- 4
- Combined power
- 31
- States
- 2
- Oldest authority
- May 1, 2018
- Active now
- 3
- POWERGRADE INC· viewingUSDOT 41904460PU
- POWERHOUSE GRADING INCUSDOT 313128320PU
- JDP EQUIPMENT RENTAL INCUSDOT 313087710PU
- POLK'S UNITED TRUCKING LLCUSDOT 32541101PU
Affiliated entities· hover to preview