Machine Shops · Michigan

Main

Grand Rapids, MI · ~135 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
6.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Main runs at 209% of its industry's injury rate - far more dangerous than the typical Machine Shops workplace, earning a grade F.

Main: 6.9 TCR = 209% of Machine Shops BLS 3.3 · 3y Form 300A (see methodology below)

Main safety composite

Main scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 3%), 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

21/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 6.91 per 100 workers

Safer than 18% of industry peers

DART rate
F 8.75 per 100 workers

Safer than 3% of industry peers

Fatalities
D 0

Safer than 50% 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

Main: 6.0 → 12.5 TCR

Peak year 2018 @ 12.5 TCR · DART/TCR 1.27× in 2018

Main's TCR rose 6.5 from 6.0 in 2016 to 12.5 in 2018. In 2018, DART was 1.27× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 332710 · Grand Rapids, MI ABOVE-IND · MID

Grade F · TCR 6.9 · 209% of ind

  • DART 8.8 DART
  • RANK #80/111
  • PHOTO BF Custom Machining …
  • BOOK 3y book
  • INJ 31 inj
  • SIZE ~135 FTE

Nearest TCR peer: BF Custom Machining - Frederic (0.0 TCR gap)

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

Main in the TCR neighbourhood

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

TCR

What this shows Main averages 6.9 TCR (209% of the Machine Shops BLS benchmark).

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

Main TCR series: 2016=6 · 2017=2.2 · 2018=12.5 · BLS 3.3

Where Main falls in its industry

1,821 Machine Shops establishments

Safer than 18% of graded establishments in this industry, whose median TCR is 3.5.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #80 safest of 111 Machine Shops employers in Michigan.

Main (135 employees, TCR 6.9) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 3.5 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 051015 Average employees Total Case Rate Main
Main (135 employees, TCR 6.9) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 3.5

Main has more employees than the Machine Shops median and a higher injury rate than the industry's median TCR of 3.5. 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
2018 12.5 8.8 20 0 0
2017 2.2 0.0 3 0 0
2016 6.0 0.0 8 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

332710 · MI · Grand Rapids

1,821 Machine Shops employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 1,006 employers in Grand Rapids, 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 BF Custom Machining - Frederic 6.9 TCR
NAICS-TCR 815 Machine Shop 6.9 TCR
NAICS-TCR Costa Precision Mfg 6.9 TCR
NAICS-TCR Dynomax Inc. D5 6.9 TCR
STATE-SIZE Lombardo Homes of Michigan 135 FTE
STATE-SIZE EV Construction 135 FTE
STATE-SIZE B&B Electrical Contractors, LLC 135 FTE
STATE-SIZE Master Electric Inc. 135 FTE
CITY-NEAR SHHG-GR BUTTERWORTH CA 9,012 FTE
CITY-NEAR SH Butterworth Hospital 7,397 FTE
CITY-NEAR Mercy Health Saint Mary's Hospital-MH-MI 2,914 FTE
CITY-NEAR Steelcase - Grand Rapids / Kentwood 2,817 FTE
NAT-TCR Alliance Occupational Medicine 6.9 TCR
NAT-TCR IMG 6.9 TCR
NAT-TCR Atrium Post Acute Care of Matawan 6.9 TCR
NAT-TCR Peapod S&S Watertown, Ma 6.9 TCR
NAT-SIZE Huntersville Health and Rehabiliation Center 135 FTE
NAT-SIZE S07726 - Phoenix Call Center 135 FTE
NAT-SIZE Denitech - Fort Worth 135 FTE
NAT-SIZE Denitech - Coppell 135 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: 2018, 2017, 2016. 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.