Carrier profile · USDOT 429492 · Updated Jun 13, 2026
Mast Road Grain and Building Materials Co Inc
12 power unitsavg 9.2 yrLocal · 1 statesMANCHESTER, NH100/100
AUTHORITY STATUS UNKNOWNRATED CONDITIONAL
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
robert dupuis — 4 carriers: USDOT 1511868USDOT 2260821USDOT 3177349
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)1212
Observed (24 mo)66
Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.
Owner / group view· confidence: officer
Owner / group view
Affiliated authorities
Collapses 4 related authorities · joined by officer
- Authorities
- 4
- Combined power
- 18
- States
- 4
- Oldest authority
- Nov 28, 1990
- Active now
- 2
- MAST ROAD GRAIN AND BUILDING MATERIALS CO INC· viewingUSDOT 42949212PU
- DUPUIS FARMUSDOT 31773493PU
- C&S ROOFING INCUSDOT 22608212PU
- ROBERT DUPUISUSDOT 15118681PU
Affiliated entities· hover to preview