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Employers › MO

Construction · Chesterfield, MO

Unnerstall Contracting Company LLC

According to OSHA enforcement records (2010–2026), Unnerstall Contracting Company LLC has a concerning safety record: 7 violations across 2 inspections. See the full breakdown below.

Top 5% by penalty86% serious
$95,500
OSHA penalties
7
Violations cited
2
OSHA inspections
#1,888
of 100,495 penalized employers

Unnerstall Contracting Company LLC in Chesterfield, MO has been the subject of 2 OSHA workplace inspections and 7 citations since 2010, according to enforcement records from the U.S. Department of Labor. Total penalties assessed: $95,500. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.

The record in one line

OSHA has inspected Unnerstall Contracting Company LLC 2 times over 4 years, roughly once every couple of years. These inspections resulted in 7 violations, averaging 3.5 per inspection, above what's typical for a single visit. Its total OSHA penalty ranks in the top 5% of penalized employers nationally. Of these, 6 were classified as serious and 1 as willful - indicating hazards that could cause death or serious harm. Against the Construction industry average of 2 inspections per employer, this sits roughly in line with peers (1.0x the sector average) on inspection frequency. For comparison, Radar Welding Services in Texas City, TX is another construction employer with 0 OSHA inspections on record and $0 in current penalties.

3.5
violations per inspection
85.7%
of violations were serious
98%
of penalized employers rank lower

How this employer compares on OSHA penalties

Total current penalty vs the Construction per-employer average

in penalties

What this shows Unnerstall Contracting Company LLC runs far above peers (14.1x the sector average) in total OSHA penalties.

Source U.S. Department of Labor, OSHA enforcement extracts As of 2026

Where this penalty ranks nationally

Total current OSHA penalty vs every U.S. employer with a nonzero penalty

$95,500 Bottom 2% least affordable more affordable than 2% of 100,495 U.S. employers with a penalty

$0–$5,000: 44,435 U.S. employers with a penalty (44%). Below this entry. $5,000–$10,000: 20,628 U.S. employers with a penalty (21%). Below this entry. $10,000–$15,000: 11,165 U.S. employers with a penalty (11%). Below this entry. $15,000–$20,000: 6,629 U.S. employers with a penalty (7%). Below this entry. $20,000–$25,000: 4,205 U.S. employers with a penalty (4%). Below this entry. $25,000–$30,000: 2,885 U.S. employers with a penalty (3%). Below this entry. $30,000–$35,000: 2,052 U.S. employers with a penalty (2%). Below this entry. $35,000–$40,000: 1,483 U.S. employers with a penalty (1%). Below this entry. $40,000–$45,000: 1,120 U.S. employers with a penalty (1%). Below this entry. $45,000–$50,000: 792 U.S. employers with a penalty (1%). Below this entry. $50,000+: 5,101 U.S. employers with a penalty (5%). This entry ($95,500) is well above this band, the chart's rightmost open-ended bucket. This employer: $95,500 $0 $55,000+ every penalized U.S. employer, bucketed by value

Each bar is a $5K-wide band; taller bars hold more U.S. employers with a penalty. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Labor, OSHA enforcement extracts · 2026

What the Data Says About Unnerstall Contracting Company LLC

The federal enforcement record for Unnerstall Contracting Company LLC in Chesterfield, MO includes 2 OSHA inspections and 7 violations, translating to 3.50 violations per inspection. Of those violations, 6 (85.7%) were classified as serious, 1 (14.3%) as willful, and 0 (0.0%) as repeat. Serious violations denote hazards likely to cause death or serious physical harm; willful and repeat categories indicate intentional disregard or recurrence of previously cited hazards.

OSHA assessed $224,459 in initial penalties against this employer, later adjusted to a current total of $95,500 - a 57.5% reduction. Average penalty per inspection works out to $47,750. Against the Construction industry average of $6,751 per employer, this record runs far above peers (14.1x the sector average).

Inspection activity spans from 2019-12-31 to 2024-05-21, a window of roughly 4 years.

Enforcement detail

OSHA Inspection History

Total Inspections

2

First Inspection

2019-12-31

Last Inspection

2024-05-21

Inspection Span

4 yrs

Violations / Inspection

3.5

Avg Penalty / Inspection

$47,750

Industry Avg / Inspection

$3,361

What this shows 2 inspections over 4 years, averaging 3.5 violations per visit. That's $47,750 per inspection vs. the Construction average of $3,361.

Enforcement detail

Violation Breakdown

6

Serious

85.7% of total

1

Willful

14.3% of total

0

Repeat

0.0% of total

0

Other-Than-Serious

0.0% of total

What this shows Serious violations involve hazards that could cause death or serious physical harm. Willful violations indicate intentional or knowing disregard of the law. Repeat violations are for hazards previously cited within the past 5 years.

Enforcement detail

Penalty Analysis

Initial Penalty Assessed

$224,459

Current Penalty Amount

$95,500

Penalty Reduction

57.5%

What this shows Penalties were reduced by $128,959 from the initial assessment of $224,459. Reductions may result from informal settlements, formal contests, or negotiated agreements with OSHA.

Industry Safety Context: Construction

How Unnerstall Contracting Company LLC compares to the Construction sector, which has 61,413 employers tracked by PlainWorker.

Metric Unnerstall Contracting Company LLC Industry Avg
Inspections 2 2.0
Violations 7 3.3
Total Penalty $95,500 $6,751
Avg Penalty per Inspection $47,750 $3,361
View all 61,413 employers in Construction →

Nearby & Similar Employers in Construction

Ast Construction LLC
Hasbrouck Heights, NJ
2 inspections $95,469
Insulation Maintenance and Construction LLC
North Las Vegas, NV
0 inspections $0
East Carolina Mechanical
Jacksonville, NC
0 inspections $0
Radar Welding Services
Texas City, TX
0 inspections $0
Findlay Roofing, Inc.
Marietta, GA
0 inspections $0

Compare Unnerstall Contracting Company LLC vs Ast Construction LLC side-by-side →

Frequently Asked Questions

Is Unnerstall Contracting Company LLC safe to work at? ▼
Based on OSHA records, Unnerstall Contracting Company LLC's workplace safety record is concerning, with multiple serious compliance issues. The employer has 7 violations across 2 inspections, including 6 serious violations. Compared to Construction industry peers, this is above average for penalties. Review the full inspection history below for details.
How many OSHA violations does Unnerstall Contracting Company LLC have? ▼
Unnerstall Contracting Company LLC has 7 OSHA violations on record, including 6 serious, 1 willful, and 0 repeat violations. The total current penalty amount is $95,500.
How many OSHA inspections has Unnerstall Contracting Company LLC had? ▼
Unnerstall Contracting Company LLC has had 2 OSHA inspections, with the first recorded on 2019-12-31 and the most recent on 2024-05-21. This averages 3.5 violations per inspection.
What is the total penalty amount for Unnerstall Contracting Company LLC? ▼
Unnerstall Contracting Company LLC has been assessed $95,500 in current OSHA penalties, reduced from an initial assessment of $224,459 (a 57.5% reduction).
Does Unnerstall Contracting Company LLC have any serious or willful violations? ▼
Yes. Unnerstall Contracting Company LLC has 6 serious violations, 1 willful violations. Serious violations involve hazards likely to cause death or serious physical harm. Willful violations indicate the employer intentionally or knowingly disregarded the law.
What industry does Unnerstall Contracting Company LLC operate in? ▼
Unnerstall Contracting Company LLC operates in the Construction sector (NAICS code 237110). This industry has 61,413 employers tracked by PlainWorker, with 123,350 total OSHA inspections and $414.57M in cumulative penalties.
How does Unnerstall Contracting Company LLC's safety record compare to industry average? ▼
Unnerstall Contracting Company LLC's total OSHA penalty of $95,500 is above the Construction industry average of $6,751 per employer (14.1x the average). The employer has 2 inspections compared to the industry average of 2.0 per employer. For a direct comparison, Radar Welding Services in Texas City, TX is a similar construction employer with $0 in current penalties.

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What to check next

Unnerstall Contracting Company LLC's record is one establishment in a larger pattern. Use it as a research checklist, not a verdict on the employer overall.

These figures are the federal enforcement record on file and reflect past inspections, not a statement about current workplace conditions. See the disclaimer for how to read them.

Data Sources & Methodology ▼

Data as of 2026. Source: U.S. Department of Labor (OSHA, WHD).

Source: OSHA Enforcement Data

Inspection and violation records from the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, covering the period 2010–2026. Includes inspection dates, violation types (serious, willful, repeat, other-than-serious), and penalty amounts. Penalties shown are current assessed amounts and may differ from original citations due to settlement, contest, or reduction.

Source: Wage and Hour Division (WHD)

Compliance actions from the WHD, covering enforcement of the Fair Labor Standards Act (FLSA), including minimum wage, overtime, and child labor violations. Back wages represent amounts owed to affected employees as determined by WHD investigations.

Employer Matching

Employers are matched across OSHA and WHD datasets by name, state, and city. Employers included in PlainWorker have 2 or more OSHA inspections or $1,000+ in WHD back wages. Data is updated monthly from data.dol.gov.

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Every figure on PlainWorker is rendered directly from official U.S. Department of Labor OSHA and Wage & Hour Division enforcement records, no number is typed in by an editor. This employer's ratios (penalty-per-violation, industry comparisons) are computed live from the 2 inspections on record. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.