Internal combustion engines, automotive and truck gasoline, manufacturing · Michigan

MANN+HUMMEL Portage

Name: MANN+HUMMEL Portage Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Portage, MI · ~652 workers · 5 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 2.4
Avg TCR: 5.4
Industry avg: 0
Fatalities

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The verdict

MANN+HUMMEL Portage runs at 45% of its industry's injury rate - far safer than the typical Internal combustion engines, automotive and truck gasoline, manufacturing workplace, earning a grade A.

MANN+HUMMEL Portage: 2.4 TCR = 45% of Internal combustion engines, automotive and truck gasoline, manufacturing BLS 5.4 · 5y Form 300A (see methodology below)

MANN+HUMMEL Portage safety composite

MANN+HUMMEL Portage scores strongest on dart rate (safer than 71% 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).

62/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.42 per 100 workers

Safer than 61% of industry peers
DART rate: C 0.48 per 100 workers

Safer than 71% 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

MANN+HUMMEL Portage: 2.3 → 3.5 TCR

Peak year 2021 @ 3.5 TCR · DART/TCR 0.2× in 2021

MANN+HUMMEL Portage's TCR rose 1.3 from 2.3 in 2016 to 3.5 in 2021. In 2021, DART was 0.2× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

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

Grade A · TCR 2.4 · 45% of ind

DART 0.5 DART
RANK #20/55
PHOTO Manley Performance P…
BOOK 5y book
INJ 77 inj
SIZE ~652 FTE

Nearest TCR peer: Manley Performance Products (0.0 TCR gap)

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This site

2.4
Manley Perform

2.4
Marshall Engin

2.4
MANN+HUMMEL Pl

2.4
Schmidt Automo

2.4

What this shows MANN+HUMMEL Portage averages 2.4 TCR (45% of the Internal combustion engines, automotive and truck gasoline, manufacturing BLS benchmark).

MANN+HUMMEL Portage TCR series: 2016=2.3 · 2018=2.1 · 2019=2.1 · 2020=2.2 · 2021=3.5 · BLS 5.4

Where MANN+HUMMEL Portage falls in its industry

221 Internal combustion engines, a establishments

Safer than 61% of graded establishments in this industry, whose median TCR is 2.9.

Grade A

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 55 Internal combustion engines, a employers in Michigan.

MANN+HUMMEL Portage (652 employees, TCR 2.4) 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 Internal combustion engines, automotive 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
2021	3.5	0.5	22	0
2020	2.2	1.7	13	0
2019	2.1	1.4	15	0
2018	2.1	0.9	14	0
2016	2.3	1.0	13	1

OSHA ITA peer cross-reference

Establishment peer ledger

336310 · MI · Portage

221 Internal combustion engines, automotive and truck gasoline, 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	Place	Metric
NAICS-TCR	Manley Performance Products	LAKEWOOD, NJ	2.4 TCR
NAICS-TCR	Marshall Engines	KEARNEY, NE	2.4 TCR
NAICS-TCR	MANN+HUMMEL Plant 3 Dunlap,TN	DUNLAP, TN	2.4 TCR
NAICS-TCR	Schmidt Automotive USA LP	LONG GROVE, IL	2.4 TCR
STATE-SIZE	West Bend Health Center	WEST BEND	652 FTE
STATE-SIZE	Mann+Hummel - Portage	PORTAGE	653 FTE
STATE-SIZE	OPERATIONS CENTER - TREAS	DIMONDALE	653 FTE
STATE-SIZE	Yanfeng Highland Park	HIGHLAND PARK	650 FTE
CITY-NEAR	Stryker Instruments - 1941	Portage	2,914 FTE
CITY-NEAR	Stryker Medical	Portage	2,059 FTE
CITY-NEAR	Summit Polymers, Inc.	Portage	1,619 FTE
CITY-NEAR	Stryker Corporation Shared Services	Portage	768 FTE
NAT-TCR	Washington Office	Kent, WA	2.4 TCR
NAT-TCR	White Marsh Office	White Marsh, MD	2.4 TCR
NAT-TCR	Electrical	Salem, OR	2.4 TCR
NAT-TCR	CHC- Signal Hill PHP	Signal Hill, CA	2.4 TCR
NAT-SIZE	Ameream NJP LLC	East Rutherford, NJ	652 FTE
NAT-SIZE	Triumph Aerostructures - Tulsa, LLC	Tulsa, OK	652 FTE
NAT-SIZE	119466-West Palm Beach Fl P&Dc	West Palm Beach, FL	652 FTE
NAT-SIZE	California - C1	Ontario, CA	652 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: 2021, 2020, 2019, 2018, 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.