Mechanical contractors · Wisconsin

Ahern Milwaukee

Name: Ahern Milwaukee Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Milwaukee, WI · ~210 workers · 7 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.3
Avg TCR: 2.8
Industry avg: 0
Fatalities

Subscribe to safety-record updates (RSS)

The verdict

Ahern Milwaukee runs at 84% of its industry's injury rate - about level with the typical Mechanical contractors workplace, earning a grade C.

Ahern Milwaukee: 2.3 TCR = 84% of Mechanical contractors BLS 2.8 · 7y Form 300A (see methodology below)

Ahern Milwaukee safety composite

Ahern Milwaukee scores strongest on total case rate (tcr) (safer than 63% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.34 per 100 workers

Safer than 63% of industry peers
DART rate: D 0.91 per 100 workers

Safer than 54% 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%).

Ahern Milwaukee held a steady TCR band

Ahern Milwaukee's TCR held near 0.2 from 2.1 in 2018 to 2.3 in 2024. Peak filing year was 2019 at 2.9 TCR. In 2024, DART was 0.39× this establishment's average TCR (severity share of cases).

2018=2.1 · 2019=2.9 · 2020=2.1 · 2021=2.6 · 2022=2.3 · 2023=2.1 · 2024=2.3

OSHA ITA Form 300A scorecard

Establishment book 238220 · Milwaukee, WI AT/BELOW-IND · MID

Grade C · TCR 2.3 · 84% of ind

DART 0.9 DART
RANK #49/154
PHOTO The Lighthart Corpor…
BOOK 7y book
INJ 33 inj
SIZE ~210 FTE

Nearest TCR peer: The Lighthart Corporation (0.0 TCR gap)

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

This site

2.3
The Lighthart

2.3
DeFranco Plumb

2.3
Hermanson - Fa

2.3
US124: Springf

2.3

What this shows Ahern Milwaukee averages 2.3 TCR (84% of the Mechanical contractors BLS benchmark).

Ahern Milwaukee TCR series: 2018=2.1 · 2019=2.9 · 2020=2.1 · 2021=2.6 · 2022=2.3 · 2023=2.1 · 2024=2.3 · BLS 2.8

Where Ahern Milwaukee falls in its industry

5,793 Mechanical contractors establishments

Safer than 63% of graded establishments in this industry, whose median TCR is 3.3.

Grade C

More dangerous than peersSafer than peers

Narrower to Wisconsin alone (the establishments it most directly competes with for workers and contracts): ranked #49 safest of 154 Mechanical contractors employers in Wisconsin.

Ahern Milwaukee (210 employees, TCR 2.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Ahern Milwaukee has more employees than the Mechanical contractors median and a lower injury rate than the industry's median TCR of 3.3. 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
2024	2.3	0.9	5
2023	2.1	0.4	5
2022	2.3	0.6	4
2021	2.6	0.5	5
2020	2.1	0.5	4
2019	2.9	1.4	6
2018	2.1	0.5	4

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · WI · Milwaukee

5,793 Mechanical contractors employers nationwide with a credible TCR · 12,834 rated employers in Wisconsin with headcount on file · 980 employers in Milwaukee, WI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	The Lighthart Corporation	LOS ANGELES, CA	2.3 TCR
NAICS-TCR	DeFranco Plumbing, Inc.	PALATINE, IL	2.3 TCR
NAICS-TCR	Hermanson - Fab Shop	KENT, WA	2.3 TCR
NAICS-TCR	US124: Springfield 333 - SG	SPRINGFIELD, MO	2.3 TCR
STATE-SIZE	Bernatellos Pizza- Sales Eau Claire	DAU CLAIRE	210 FTE
STATE-SIZE	Kraft Heinz Wausau	WAUSAU	210 FTE
STATE-SIZE	Mullins Cheese INC #1	MOSINEE	210 FTE
STATE-SIZE	Inland Label and Marketing Services, LLC - Airport Rd.	LA CROSSE	210 FTE
CITY-NEAR	Aurora St. Luke's Medical Center	Milwaukee	7,587 FTE
CITY-NEAR	FROEDTERT HOSPITAL	Milwaukee	7,328 FTE
CITY-NEAR	Milwaukee Hospital	Milwaukee	3,398 FTE
CITY-NEAR	Childrens Hospital - Milw Campus	Milwaukee	2,851 FTE
NAT-TCR	Topnotch Resort	Stowe, VT	2.3 TCR
NAT-TCR	Central Valley Water Reclamation Facility	Salt Lake City, UT	2.3 TCR
NAT-TCR	Broadway	San Francisco, CA	2.3 TCR
NAT-TCR	Celebration	Celebration, FL	2.3 TCR
NAT-SIZE	US04 Minneapolis Link Snacks Inc.	Minneapolis, MN	210 FTE
NAT-SIZE	CS Wholesale Grocers : Stockton, CA (GDC)	Stockton, CA	210 FTE
NAT-SIZE	Wasa Electrical Services, Inc.	Honolulu, HI	210 FTE
NAT-SIZE	Lillian Mill Administration Office	Albemarle, NC	210 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: 2024, 2023, 2022, 2021, 2020, 2019, 2018. 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.