Chimney, concrete, construction · Wisconsin

Capitol Mechanical, Inc.

Sun Prairie, WI · ~79 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
20.5
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Capitol Mechanical, Inc. runs at 733% of its industry's injury rate - far more dangerous than the typical Chimney, concrete, construction workplace, earning a grade F.

Capitol Mechanical, Inc.: 20.5 TCR = 733% of Chimney, concrete, construction BLS 2.8 · 3y Form 300A (see methodology below)

Capitol Mechanical, Inc. safety composite

Capitol Mechanical, Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 1%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

14/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 20.52 per 100 workers

Safer than 1% of industry peers

DART rate
F 25.96 per 100 workers

Safer than 1% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Capitol Mechanical, Inc.: 15.1 → 322.7 TCR

Peak year 2023 @ 322.7 TCR · DART/TCR 8.99× in 2023

Capitol Mechanical, Inc.'s TCR rose 307.7 from 15.1 in 2017 to 322.7 in 2023. In 2023, DART was 8.99× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238110 · Sun Prairie, WI ABOVE-IND · SMALL

Grade F · TCR 20.5 · 733% of ind

  • DART 184.4 DART
  • RANK #35/36
  • PHOTO Hamill Concrete, LLC
  • BOOK 3y book
  • INJ 37 inj
  • SIZE ~79 FTE

Nearest TCR peer: Hamill Concrete, LLC (0.0 TCR gap)

Read with this employer → · Industry book → · Wisconsin employers → · Look up another →

Capitol Mechanical, Inc. in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Capitol Mechanical, Inc. averages 20.5 TCR (733% of the Chimney, concrete, construction BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Capitol Mechanical, Inc. TCR series: 2017=15.1 · 2018=26 · 2023=322.7 · BLS 2.8

Where Capitol Mechanical, Inc. falls in its industry

1,314 Chimney, concrete, constructio establishments

Safer than 1% of graded establishments in this industry, whose median TCR is 3.8.

More dangerous than peersSafer than peers

Narrower to Wisconsin alone (the establishments it most directly competes with for workers and contracts): ranked #35 safest of 36 Chimney, concrete, constructio employers in Wisconsin.

Capitol Mechanical, Inc. (79 employees, TCR 20.5) among 29 same-industry peers, split at the industry median of 64 employees and a TCR of 3.8 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300 0510152025 Average employees Total Case Rate Capitol Mechanical, Inc.
Capitol Mechanical, Inc. (79 employees, TCR 20.5) among 29 same-industry peers, split at the industry median of 64 employees and a TCR of 3.8

Capitol Mechanical, Inc. has more employees than the Chimney, concrete, construction median and a higher injury rate than the industry's median TCR of 3.8. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 322.7 184.4 7 0 0
2018 26.0 26.0 20 0 0
2017 15.1 3.0 10 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238110 · WI · Sun Prairie

1,314 Chimney, concrete, construction employers nationwide with a credible TCR · 12,834 rated employers in Wisconsin with headcount on file · 69 employers in Sun Prairie, WI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Hamill Concrete, LLC 20.5 TCR
NAICS-TCR Everett Concrete LLC 20.6 TCR
NAICS-TCR Steffy Concrete Inc 20.1 TCR
NAICS-TCR Colorado Concrete Company 20.0 TCR
STATE-SIZE Oakbrook 79 FTE
STATE-SIZE Butter Buds Inc. 79 FTE
STATE-SIZE Cady Cheese, LLC 79 FTE
STATE-SIZE Vesper Plant 79 FTE
CITY-NEAR Sun Prairie Location 290 FTE
CITY-NEAR WM 1267 286 FTE
CITY-NEAR SUN PRAIRIE GENERAL OFC 278 FTE
CITY-NEAR CB Sun Prairie 275 FTE
NAT-TCR The Canopy of Walden Woods 20.5 TCR
NAT-TCR Cass Nv, LLC 20.5 TCR
NAT-TCR Bickford of Suffolk 20.5 TCR
NAT-TCR Amazon.com Services LLC - GEG2 20.5 TCR
NAT-SIZE Arkema Inc. West Chester 79 FTE
NAT-SIZE National Van Lines 79 FTE
NAT-SIZE Hotel Monaco 79 FTE
NAT-SIZE Beaumont Health Care Center 79 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.