Building materials (e.g., fascia, panels, siding, soffit), plastics, manufacturing · New Hampshire

Londonderry Manufacturing

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

Londonderry, NH · ~430 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 1.4
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Londonderry Manufacturing runs at 42% of its industry's injury rate - far safer than the typical Building materials (e.g., fascia, panels, siding, soffit), plastics, manufacturing workplace, earning a grade A.

Londonderry Manufacturing: 1.4 TCR = 42% of Building materials (e.g., fascia, panels, siding, soffit), plastics, manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

Londonderry Manufacturing safety composite

Londonderry Manufacturing scores strongest on total case rate (tcr) (safer than 86% 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).

70/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 1.4 per 100 workers

Safer than 86% of industry peers
DART rate: C 0.7 per 100 workers

Safer than 67% 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%).

Londonderry Manufacturing held a steady TCR band

Londonderry Manufacturing's TCR held near 0.0 from 1.4 in 2023 to 1.4 in 2024. Peak filing year was 2023 at 1.4 TCR. In 2024, DART was 0.5× this establishment's average TCR (severity share of cases).

2023=1.4 · 2024=1.4

OSHA ITA Form 300A scorecard

Establishment book 326199 · Londonderry, NH AT/BELOW-IND · MID

Grade A · TCR 1.4 · 42% of ind

DART 0.7 DART
RANK #1/17
PHOTO Poly Processing Comp…
BOOK 2y book
INJ 12 inj
SIZE ~430 FTE

Nearest TCR peer: Poly Processing Company, LLC Monroe (0.0 TCR gap)

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This site

1.4
Poly Processin

1.4
Seagate Plasti

1.4
DA Inc Santa T

1.4
Berry Global

1.4

What this shows Londonderry Manufacturing averages 1.4 TCR (42% of the Building materials (e.g., fascia, panels, siding, soffit), plastics, manufacturing BLS benchmark).

Londonderry Manufacturing TCR series: 2023=1.4 · 2024=1.4 · BLS 3.3

Where Londonderry Manufacturing falls in its industry

2,838 Building materials (e.g., fasc establishments

Safer than 86% of graded establishments in this industry, whose median TCR is 3.5.

Grade A

More dangerous than peersSafer than peers

Narrower to New Hampshire alone (the establishments it most directly competes with for workers and contracts): ranked #1 safest of 17 Building materials (e.g., fasc employers in New Hampshire.

Londonderry Manufacturing (430 employees, TCR 1.4) among 29 same-industry peers, split at the industry median of 101 employees and a TCR of 3.5

Londonderry Manufacturing has more employees than the Building materials (e.g., fascia, panels median and a lower 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
2024	1.4	0.7	6	0	0
2023	1.4	0.7	6	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

326199 · NH · Londonderry

2,838 Building materials (e.g., fascia, panels, siding, soffit), plastics, manufacturing employers nationwide with a credible TCR · 2,718 rated employers in New Hampshire with headcount on file · 105 employers in Londonderry, 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	Poly Processing Company, LLC Monroe	MONROE, LA	1.4 TCR
NAICS-TCR	Seagate Plastics	WATERVILLE, OH	1.4 TCR
NAICS-TCR	DA Inc Santa Teresa, New Mexico	SANTA TERESA, NM	1.4 TCR
NAICS-TCR	Berry Global	VALDOSTA, GA	1.4 TCR
STATE-SIZE	OSRAM	HILLSBOROUGH	429 FTE
STATE-SIZE	Market Basket #06	SALEM	434 FTE
STATE-SIZE	324801-MANCHESTER NH P&DC	MANCHESTER	436 FTE
STATE-SIZE	Nashua 1	NASHUA	437 FTE
CITY-NEAR	L3Harris	Londonderry	893 FTE
CITY-NEAR	L3 Technologies, Insight Division	Londonderry	857 FTE
CITY-NEAR	HARVEY BUILDING PRODUCTS, LONDONDERRY NH	Londonderry	532 FTE
CITY-NEAR	Market Basket #42	Londonderry	524 FTE
NAT-TCR	Laredo 10287	Laredo, TX	1.4 TCR
NAT-TCR	Global Cooling	Athens, OH	1.4 TCR
NAT-TCR	Watford City	Watford City, ND	1.4 TCR
NAT-TCR	Phillips Brothers Construction, Inc.	Vine Grove, KY	1.4 TCR
NAT-SIZE	CAR-FRESHNER Corporation	Watertown, NY	430 FTE
NAT-SIZE	Sofo Foods of Ohio	Toledo, OH	430 FTE
NAT-SIZE	Somerset Hills YMCA	Basking Ridge, NJ	430 FTE
NAT-SIZE	Lccb 1l17 Philadelphia Distribution Ctr	Philadelphia, PA	430 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. 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.