Sigma Squared Transport Corporation

USDOT inactiveAuthority activeCarrier · Interstate
  • USDOT4473629
  • MC1547581
  • MC1765917
  • LocationSioux Falls, SD
  • Phone(605) 650-3870
  • Fleet3 power units · 3 drivers

Sigma Squared Transport Corporation (USDOT 4473629, MC-1547581) is an interstate motor carrier based in Sioux Falls, South Dakota with 3 power units and 3 drivers reported to FMCSA. Its USDOT number is not active.

Verification snapshot · FMCSA data as of Nov 11, 2026

Got a call or email from someone using this company’s name? Check the phone number or email against FMCSA records.

Operating authority

Status from the FMCSA Company Census File, November 11, 2026

DocketAuthority typeStatus
MC-1547581Motor Carrier of Property (except Household Goods)Active
MC-1765917Inactive

First granted on September 1, 2023 · see full authority history.

Insurance

FMCSA legacy licensing records (last updated May 2026); filings may have changed since

  • Liability (BIPD) required$750,000
  • Liability (BIPD) on file$750,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Liability (BIPD) BMC-91XAccredited Specialty Insurance Company$750,000Nov 4, 2025
Insurance history: 3 past filings
TypeInsurerEffectiveEndedReason
Liability (BIPD)Accredited Specialty Insurance CompanyNov 4, 2025Nov 4, 2026Cancel
Liability (BIPD)Canal Insurance Co.Sep 4, 2025Nov 6, 2025Transfer
Liability (BIPD)United Financial Casualty CompanyAug 29, 2023Sep 4, 2025Replaced

Process agent (BOC-3)

Process Agent Service Company, Inc., Sioux Falls, SD

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

No roadside inspections or reportable crashes are on file for this USDOT number in the last 24 months.

FMCSA safety rating: Not rated

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Involuntary suspension - insurance cancellation effective; no active insurance meeting minimum coverage on file — Motor Carrier of Property (except Household Goods)
  2. Operating authority involuntary suspension notice — Motor Carrier of Property (except Household Goods)
  3. Granted — Common carrier authority; Motor Carrier of Property (except Household Goods)
  4. Withdrawn — Common carrier authority
  5. Granted — Common carrier authorityTransfer consummated on November 10, 2025

Fleet and operations

From the company’s own registration (Form MCS-150), updated November 14, 2025

Power units
3
Trucks
3
Tractors owned
3
Trailers owned
2
Drivers
3
CDL drivers
3
Interstate drivers
3
Classification
Authorized for hire
Hazardous materials
No
USDOT registered
September 26, 2025
Address
1101 N Cleveland Ave Apt 14, Sioux Falls, SD 57103
Phone (registered with FMCSA)
(605) 650-3870

Cargo carried

  • General freight

Key facts

  • USDOT number 4473629 was registered on September 26, 2025.
  • Operating authority MC-1547581 was first granted on September 1, 2023.
  • The company last updated its FMCSA registration (Form MCS-150) on November 14, 2025.
  • One insurance filing is on file in FMCSA’s legacy licensing records (as of May 2026), including Liability (BIPD) coverage with Accredited Specialty Insurance Company.
  • Its process agent filing (BOC-3) is with Process Agent Service Company, Inc..

Other carriers in Sioux Falls, SD

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