School book publishers (except exclusive Internet publishing) · New Hampshire

HMH Portsmouth

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

Portsmouth, NH · ~166 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 0.0
Avg TCR: 0.7
Industry avg: 0
Fatalities

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The verdict

HMH Portsmouth runs at 0% of its industry's injury rate - about level with the typical School book publishers (except exclusive Internet publishing) workplace, earning a grade C.

HMH Portsmouth: 0.0 TCR = 0% of School book publishers (except exclusive Internet publishing) BLS 0.7 · 2y Form 300A (see methodology below)

HMH Portsmouth safety composite

HMH Portsmouth scores strongest on total case rate (tcr) (safer than 100% 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).

81/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): A 0 per 100 workers

Safer than 100% of industry peers
DART rate: B 0 per 100 workers

Safer than 81% 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%).

HMH Portsmouth held a steady TCR band

HMH Portsmouth's TCR held near 0.0 from 0.0 in 2016 to 0.0 in 2018. Peak filing year was 2016 at 0.0 TCR.

2016=0.0 · 2018=0.0

OSHA ITA Form 300A scorecard

Establishment book 511130 · Portsmouth, NH AT/BELOW-IND · MID

Grade C · TCR 0.0 · 0% of ind

DART 0.0 DART
RANK P100
PHOTO Thomson Reuters - Ro…
BOOK 2y book
INJ 0 inj
SIZE ~166 FTE

Nearest TCR peer: Thomson Reuters - Rochester (0.2 TCR gap)

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

All Native Man

0.3
Thomson Reuter

0.2
HMH Round Rock

0.2
HMH Itasca Pie

0.2
This site

0

What this shows HMH Portsmouth averages 0.0 TCR (0% of the School book publishers (except exclusive Internet publishing) BLS benchmark).

HMH Portsmouth TCR series: 2016=0 · 2018=0 · BLS 0.7

Where HMH Portsmouth falls in its industry

27 School book publishers (except establishments

Safer than 100% of graded establishments in this industry, whose median TCR is 1.3.

Grade C

More dangerous than peersSafer than peers

HMH Portsmouth (166 employees, TCR 0.0) among 13 same-industry peers, split at the industry median of 193 employees and a TCR of 1.3

HMH Portsmouth has fewer employees than the School book publishers (except exclusive median and a lower injury rate than the industry's median TCR of 1.3. 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
2018	0.0	0.0	0	0	0
2016	0.0	0.0	0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

511130 · NH · Portsmouth

27 School book publishers (except exclusive Internet publishing) employers nationwide with a credible TCR · 2,718 rated employers in New Hampshire with headcount on file · 119 employers in Portsmouth, NH · 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	Thomson Reuters - Rochester	ROCHESTER, NY	0.2 TCR
NAICS-TCR	HMH Round Rock	ROUND ROCK, TX	0.2 TCR
NAICS-TCR	HMH Itasca Pierce Plc	ITASCA, IL	0.2 TCR
NAICS-TCR	All Native Managed Services	WINNEBAGO, NE	0.3 TCR
STATE-SIZE	Severino Trucking Co., Inc.	CANDIA	166 FTE
STATE-SIZE	2551 LOWE S OF EPPING NH	EPPING	166 FTE
STATE-SIZE	2807-1907	BEDFORD	165 FTE
STATE-SIZE	NAI-0033-0033-02492 FAC-02492-MILFORD-NH	MILFORD	165 FTE
CITY-NEAR	Lonza Portsmouth	Portsmouth	1,182 FTE
CITY-NEAR	Portsmouth Regional Hospital	Portsmouth	1,160 FTE
CITY-NEAR	LDRM Visa Support Services NVC-DTSV	Portsmouth	339 FTE
CITY-NEAR	LDRM Visa Support Services NVC-LWH	Portsmouth	330 FTE
NAT-TCR	GeoCare, Inc. DBA Home Instead Senior Care	North Olmsted, OH	0.0 TCR
NAT-TCR	TX-01	Austin, TX	0.0 TCR
NAT-TCR	NJ-05	Ewing Township, NJ	0.0 TCR
NAT-TCR	CT-02	Stamford, CT	0.0 TCR
NAT-SIZE	Penske : 5064-00 BMW-DCM/Easton, PA	Easton, PA	166 FTE
NAT-SIZE	SCC of Alpine Rehabilitation Center	Ruston, LA	166 FTE
NAT-SIZE	Silgan Plastics Ottawa	Ottawa, OH	166 FTE
NAT-SIZE	Canton Headquarters	Canton, OH	166 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, 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.