SIOUX FALLS TOWER SPECIALISTS INC

DBA VIKOR

USDOT 377080 · SIOUX FALLS, SD

Not for-hireOperating 36 yrsPower units 99Drivers 159Inspections (24 mo) 29

Low

HaulReport estimate · highest estimated percentile

Vehicle Maintenance is this carrier's highest reconstructed BASIC percentile at the 32.4th percentile among 22,065 safety-event peers. Across 3 rated categories, 3 are estimated Low. Higher percentile = more inspection-violation activity recorded relative to peers. An independent estimate, not an official FMCSA or CSA score.

Estimated from public FMCSA data · updated 2026-06-07 · How we calculate this

Sioux Falls Tower Specialists Inc, operating as VIKOR, is a private property carrier based in Sioux Falls, South Dakota, registered since 1990. The carrier operates 99 power units and 159 drivers, with 2,911,411 annual miles logged in 2023. Vehicle out-of-service inspections occurred at 31.6%, above the snapshot benchmark of 21.2%, while driver out-of-service rates were 10.3% versus the snapshot benchmark of 5.2%. HaulReport-estimated percentiles across controlled substances (8.1), hours-of-service compliance (19.1), and vehicle maintenance (32.4) are all in the low band, an independent estimate, not an official FMCSA or CSA score.

HaulReport interpretation — automatically generated from the public FMCSA data below and our percentile estimates, and checked against those source figures.

Estimated BASIC percentiles

Controlled Substances / AlcoholLow

8.1 pctl · CI 3–13

BASIC measure: 0.05Insp. w/ violation: 1Peer group: 7,862

Hours-of-Service ComplianceLow

19.1 pctl · CI 14–24

BASIC measure: 0.13Insp. w/ violation: 29Peer group: 20,717

Vehicle MaintenanceLow

32.4 pctl · CI 27–37

BASIC measure: 3.24Insp. w/ violation: 19Peer group: 22,065

Out-of-service rates

Vehicle OOS31.6%above the 21.2% snapshot benchmark · 19 inspections

Driver OOS10.3%above the 5.2% snapshot benchmark · 29 inspections

Out-of-service rate = inspections resulting in an out-of-service order ÷ inspections. The benchmark is the inspection-weighted rate across this FMCSA snapshot — not an official national average. Rates are shown only with at least 5 inspections.

MCS-150 biennial update

Due October 2026

Next biennial update dueOctober 2026

Recurring update monthOctober, even-numbered years

Last MCS-150 update on fileJuly 10, 2024

FMCSA sets each carrier's biennial update month from the last two digits of the USDOT number (last digit → month, second-to-last digit → odd/even year) — it is required even when nothing has changed. This is a schedule derived from the public rule, not a compliance determination. Verify and file on FMCSA · Deadline calculator

Independent estimate — not an official FMCSA or CSA score. Highest estimated percentile band: Low.

This percentile is an independent estimate produced by ranking FMCSA's publicly published BASIC measure within a safety-event peer group. FMCSA does not publish percentiles for property carriers; this figure is HaulReport's reconstruction and may differ from any internal FMCSA value. Bands describe percentile ranges among peers, not safety judgments. It is provided for general informational purposes only; it is not a consumer report and may not be used for any purpose governed by the Fair Credit Reporting Act (including credit, insurance, employment, or tenant screening), and it is not a safety rating, a fitness determination, legal advice, or a recommendation to do business with any carrier. Always verify against official FMCSA sources before relying on it.

Carrier facts (public FMCSA data)

Verbatim public facts from FMCSA datasets. Only the percentile/band/confidence figures above are HaulReport reconstructions — **not** official FMCSA or CSA scores.
USDOT number	377080
Legal name	SIOUX FALLS TOWER SPECIALISTS INC
Doing business as	VIKOR
Location	SIOUX FALLS, SD
Operating classification	Not for-hire (per FMCSA census)
Power units (fleet size)	99
Drivers	159
Reported annual mileage	2,911,411 (reported for 2023)
FMCSA registered	1990 (~36 years)
Last MCS-150 update	July 10, 2024
Next MCS-150 update due	October 2026
Inspections (trailing 24 mo)	29
Published BASIC measures	3

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FMCSA data as of 2026-06-06 · Last synced 2026-06-07 · Method: how these percentiles are reconstructed · Canonical: https://haulreport.com/carrier/377080/