Engine intake and exhaust valves manufacturing · Michigan

Mann+Hummel - Portage

Portage, MI · ~653 workers · 3 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
2.0
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

Mann+Hummel - Portage runs at 37% of its industry's injury rate - far safer than the typical Engine intake and exhaust valves manufacturing workplace, earning a grade A.

Mann+Hummel - Portage: 2.0 TCR = 37% of Engine intake and exhaust valves manufacturing BLS 5.4 · 3y Form 300A (see methodology below)

Mann+Hummel - Portage safety composite

Mann+Hummel - Portage scores strongest on total case rate (tcr) (safer than 68% of same-industry peers) and weakest on fatalities (safer than 50%), 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

61/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.02 per 100 workers

Safer than 68% of industry peers

DART rate
C 0.97 per 100 workers

Safer than 60% 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%).

Mann+Hummel - Portage held a steady TCR band

Mann+Hummel - Portage's TCR held near 0.1 from 1.8 in 2022 to 1.6 in 2024. Peak filing year was 2023 at 2.7 TCR. In 2024, DART was 0.48× this establishment's average TCR (severity share of cases).

2022=1.8 · 2023=2.7 · 2024=1.6

OSHA ITA Form 300A scorecard

Establishment book 336310 · Portage, MI AT/BELOW-IND · MID

Grade A · TCR 2.0 · 37% of ind

  • DART 1.0 DART
  • RANK #18/55
  • PHOTO Cooper Standard-Osco…
  • BOOK 3y book
  • INJ 37 inj
  • SIZE ~653 FTE

Nearest TCR peer: Cooper Standard-Oscoda Plant (0.0 TCR gap)

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

Mann+Hummel - Portage in the TCR neighbourhood

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

TCR

What this shows Mann+Hummel - Portage averages 2.0 TCR (37% of the Engine intake and exhaust valves manufacturing BLS benchmark).

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

Mann+Hummel - Portage TCR series: 2022=1.8 · 2023=2.7 · 2024=1.6 · BLS 5.4

Where Mann+Hummel - Portage falls in its industry

221 Engine intake and exhaust valv establishments

Safer than 68% of graded establishments in this industry, whose median TCR is 2.9.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #18 safest of 55 Engine intake and exhaust valv employers in Michigan.

Mann+Hummel - Portage (653 employees, TCR 2.0) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9 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 02004006008001,000 05101520 Average employees Total Case Rate Mann+Hummel - Portage
Mann+Hummel - Portage (653 employees, TCR 2.0) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9

Mann+Hummel - Portage has more employees than the Engine intake and exhaust valves manufac median and a lower injury rate than the industry's median TCR of 2.9. 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 1.0 8 2 0
2023 2.7 0.8 16 0 0
2022 1.8 0.7 13 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336310 · MI · Portage

221 Engine intake and exhaust valves manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 136 employers in Portage, 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 Cooper Standard-Oscoda Plant 2.0 TCR
NAICS-TCR NPR of America 2.0 TCR
NAICS-TCR Plants 13 & 14 2.0 TCR
NAICS-TCR Edelbrock Group 2.1 TCR
STATE-SIZE OPERATIONS CENTER - TREAS 653 FTE
STATE-SIZE MANN+HUMMEL Portage 652 FTE
STATE-SIZE West Bend Health Center 652 FTE
STATE-SIZE Administration 654 FTE
CITY-NEAR Stryker Instruments - 1941 2,914 FTE
CITY-NEAR Stryker Medical 2,059 FTE
CITY-NEAR Summit Polymers, Inc. 1,619 FTE
CITY-NEAR Stryker Corporation Shared Services 768 FTE
NAT-TCR K.C. Bobcat - Blue Springs 2.0 TCR
NAT-TCR SouthWest Texas EC 2.0 TCR
NAT-TCR Anderson Powersports 2.0 TCR
NAT-TCR NHM Constructors, Inc. 2.0 TCR
NAT-SIZE Hikma Cherry Hill 653 FTE
NAT-SIZE Amazon.com Services LLC - MTN5 653 FTE
NAT-SIZE Amazon.com Services LLC - STL4 653 FTE
NAT-SIZE C1691 - Enterprise - PDH2 653 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. 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.