Mechanical contractors · Michigan

Northern Boiler & Mechanical Contractors, Inc.

Muskegon, MI · ~114 workers · 7 years of OSHA Injury Tracking Application data.

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

Northern Boiler & Mechanical Contractors, Inc. runs at 80% of its industry's injury rate - about level with the typical Mechanical contractors workplace, earning a grade C.

Northern Boiler & Mechanical Contractors, Inc.: 2.3 TCR = 80% of Mechanical contractors BLS 2.8 · 7y Form 300A (see methodology below)

Northern Boiler & Mechanical Contractors, Inc. safety composite

Northern Boiler & Mechanical Contractors, Inc. scores strongest on total case rate (tcr) (safer than 65% 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).

C

58/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.25 per 100 workers

Safer than 65% of industry peers

DART rate
C 0.82 per 100 workers

Safer than 55% 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%).

Northern Boiler & Mechanical Contractors, Inc. held a steady TCR band

Northern Boiler & Mechanical Contractors, Inc.'s TCR held near 0.2 from 1.8 in 2016 to 1.6 in 2024. Peak filing year was 2020 at 3.1 TCR. In 2024, DART was 0.36× this establishment's average TCR (severity share of cases).

2016=1.8 · 2017=2.6 · 2019=2.6 · 2020=3.1 · 2022=2.7 · 2023=1.2 · 2024=1.6

OSHA ITA Form 300A scorecard

Establishment book 238220 · Muskegon, MI AT/BELOW-IND · MID

Grade C · TCR 2.3 · 80% of ind

  • DART 0.8 DART
  • RANK #54/153
  • PHOTO McClure Company
  • BOOK 7y book
  • INJ 17 inj
  • SIZE ~114 FTE

Nearest TCR peer: McClure Company (0.0 TCR gap)

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

Northern Boiler & Mechanical Contractors, Inc. in the TCR neighbourhood

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

TCR

What this shows Northern Boiler & Mechanical Contractors, Inc. averages 2.3 TCR (80% of the Mechanical contractors BLS benchmark).

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

Northern Boiler & Mechanical Contractors, Inc. TCR series: 2016=1.8 · 2017=2.6 · 2019=2.6 · 2020=3.1 · 2022=2.7 · 2023=1.2 · 2024=1.6 · BLS 2.8

Where Northern Boiler & Mechanical Contractors, Inc. falls in its industry

5,793 Mechanical contractors establishments

Safer than 65% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #54 safest of 153 Mechanical contractors employers in Michigan.

Northern Boiler & Mechanical Contractors, Inc. (114 employees, TCR 2.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 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 050100150200250 05101520 Average employees Total Case Rate Northern Boiler & Mechanical Contractors, Inc.
Northern Boiler & Mechanical Contractors, Inc. (114 employees, TCR 2.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Northern Boiler & Mechanical Contractors, Inc. 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 Illnesses Fatalities
2024 1.6 0.8 1 1 0
2023 1.2 1.2 1 0 0
2022 2.7 1.8 3 0 0
2020 3.1 0.8 4 0 0
2019 2.6 1.8 3 0 0
2017 2.6 1.8 3 0 0
2016 1.8 0.6 2 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MI · Muskegon

5,793 Mechanical contractors employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 230 employers in Muskegon, MI · 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 McClure Company 2.3 TCR
NAICS-TCR Total Maintenance, Inc. 2.3 TCR
NAICS-TCR Automated Logic Controls (Southeast) 2.3 TCR
NAICS-TCR Sander Mechanical 2.3 TCR
STATE-SIZE Infrastructure Alternatives Inc 114 FTE
STATE-SIZE Construction 114 FTE
STATE-SIZE City of Detroit 114 FTE
STATE-SIZE Welch's Food Inc. Lawton 114 FTE
CITY-NEAR Mercy Health Partners - Sherman Campus 3,461 FTE
CITY-NEAR Mercy Health Partners-1500 E Sherman BLVD-MH-MI 2,598 FTE
CITY-NEAR Mercy Health Partners - Hackley 1,329 FTE
CITY-NEAR Mercy Health Arena 861 FTE
NAT-TCR Central Office 2.3 TCR
NAT-TCR Neptune Aviation Services, Inc. 2.3 TCR
NAT-TCR IMR - Hayden 2.3 TCR
NAT-TCR Woodward Design Build Millwork Group 2.3 TCR
NAT-SIZE Masury terminal 114 FTE
NAT-SIZE Brenham Nursing and Rehabilitation Center 114 FTE
NAT-SIZE Allnex-Wallingford 114 FTE
NAT-SIZE Harris Arizona, LLC 114 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, 2020, 2019, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.