Carrier profile · USDOT 2083465 · Updated Jun 13, 2026
John Howard Griffiths
DBA GRIFFITHS MECHANICAL CONTRACTING INCORPORATED
0 power unitsJONESVILLE, MI50/100
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
@griffithsmechanical.com — 2 carriers: USDOT 3940854
Shares a company officer with other carriers
john griffiths — 7 carriers: USDOT 369852USDOT 644252USDOT 1084650USDOT 1110974USDOT 2109588USDOT 2893719
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
- 19
- States
- 5
- Oldest authority
- Oct 16, 1989
- Active now
- 2
- JOHN HOWARD GRIFFITHS· viewingUSDOT 20834650PU
- JOHN T GRIFFITHSUSDOT 6442527PU
- CUSTOM DIESEL EXPRESS INCORPORATEDUSDOT 10846504PU
- GRIFFITHS MOTOR TRANSPORT INCUSDOT 11109743PU
- BREATHE FREE DUCT CLEANINGUSDOT 39408542PU
- ROSS BROTHERS CONSTRUCTION COUSDOT 3698521PU
- 7 SLOT SALES LLCUSDOT 28937191PU
- SOUND STAGE AND LIGHT LLCUSDOT 21095881PU