Carrier profile · USDOT 4473629 · MC-1547581 · Updated Sep 6, 2026

Sigma Squared Transport Corporation

3 power unitsavg 7 yrRegional · 3 statesSIOUX FALLS, SD50/100
CARRIER ACTIVEMC-1547581 ACTIVE
Verified linkssstransco.comFMCSA SAFER

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.

No shared-VIN flow in the last 12 months

None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.
Show all-time history (4 trucks · 5 carriers)
Across all inspections on record: USDOT 555834USDOT 606056USDOT 125630USDOT 1106798USDOT 34666

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)3
Observed (24 mo)2
Shared w/ other carriers4

Registered and roadside-observed capacity are broadly consistent.

Shared-VIN cross-links· units inspected under more than one USDOT

VINCarriersInspectionsFirst seenLast seen
1RNF53A20JR042840View sourced platform decode35Jun 19, 2023Jan 28, 2026
1UYVS2535HU725517View sourced platform decode24Jan 24, 2024Jul 4, 2026
3AKJHHDR7LSLS2851View sourced platform decode24Jun 20, 2025Jul 4, 2026
3AKJHHDR1MSMT3008View sourced platform decode22Feb 6, 2025Jan 28, 2026