Central heating equipment, warm-air, merchant wholesalers · New Hampshire

Total Air Supply: Derry

Derry, NH · ~54 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
9.0
Avg TCR
2.2
Industry avg
0
Fatalities
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The verdict

Total Air Supply: Derry runs at 410% of its industry's injury rate - far more dangerous than the typical Central heating equipment, warm-air, merchant wholesalers workplace, earning a grade F.

Total Air Supply: Derry: 9.0 TCR = 410% of Central heating equipment, warm-air, merchant wholesalers BLS 2.2 · 2y Form 300A (see methodology below)

Total Air Supply: Derry safety composite

Total Air Supply: Derry scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 4%), 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 9.01 per 100 workers

Safer than 4% of industry peers

DART rate
F 4.13 per 100 workers

Safer than 21% 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%).

TCR Δ

−9.8

2023→2024

Total Air Supply: Derry injury rate improved

Total Air Supply: Derry's TCR fell 9.8 from 13.9 in 2023 to 4.1 in 2024. Peak filing year was 2023 at 13.9 TCR. In 2024, DART was 0.46× this establishment's average TCR (severity share of cases).

2023=13.9 · 2024=4.1

OSHA ITA Form 300A scorecard

Establishment book 423730 · Derry, NH ABOVE-IND · SMALL

Grade F · TCR 9.0 · 410% of ind

  • DART 4.1 DART
  • RANK P4
  • PHOTO Johnstone Supply Gra…
  • BOOK 2y book
  • INJ 9 inj
  • SIZE ~54 FTE

Nearest TCR peer: Johnstone Supply Grand Rapids (0.2 TCR gap)

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

Total Air Supply: Derry in the TCR neighbourhood

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

TCR

What this shows Total Air Supply: Derry averages 9.0 TCR (410% of the Central heating equipment, warm-air, merchant wholesalers BLS benchmark).

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

Total Air Supply: Derry TCR series: 2023=13.9 · 2024=4.1 · BLS 2.2

Where Total Air Supply: Derry falls in its industry

290 Central heating equipment, war establishments

Safer than 4% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers
Total Air Supply: Derry (54 employees, TCR 9.0) among 29 same-industry peers, split at the industry median of 45 employees and a TCR of 2.5 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 0100200300400 0510152025 Average employees Total Case Rate Total Air Supply: Derry
Total Air Supply: Derry (54 employees, TCR 9.0) among 29 same-industry peers, split at the industry median of 45 employees and a TCR of 2.5

Total Air Supply: Derry has more employees than the Central heating equipment, warm-air, mer median and a higher injury rate than the industry's median TCR of 2.5. 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 4.1 4.1 2 0 0
2023 13.9 11.9 7 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

423730 · NH · Derry

290 Central heating equipment, warm-air, merchant wholesalers employers nationwide with a credible TCR · 2,718 rated employers in New Hampshire with headcount on file · 33 employers in Derry, NH · 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 Johnstone Supply Grand Rapids 8.8 TCR
NAICS-TCR Williams Distributing Co - Office 9.3 TCR
NAICS-TCR CCOM Group - RAL Supply Group - Middletown 8.6 TCR
NAICS-TCR MARS MO 8.5 TCR
STATE-SIZE Bow, NH Office 54 FTE
STATE-SIZE Damon Insulation Company Inc. 54 FTE
STATE-SIZE CWPF Swanzey 54 FTE
STATE-SIZE Tilton 54 FTE
CITY-NEAR Parkland Medical Center 539 FTE
CITY-NEAR WM 1753 288 FTE
CITY-NEAR 1753 279 FTE
CITY-NEAR 08016 - Store # 8016 Derry 159 FTE
NAT-TCR Solimano Framing Group 9.0 TCR
NAT-TCR Oregon Veterans Home 9.0 TCR
NAT-TCR Gold Crown Nursery, LLC 9.0 TCR
NAT-TCR Payor - York 9.0 TCR
NAT-SIZE Benton House of Douglasville 54 FTE
NAT-SIZE USA Jamaica 305 Federal Cir 54 FTE
NAT-SIZE USA West Palm Beach 2005 Belvedere Rd 54 FTE
NAT-SIZE USA Tulsa 2136 N 73rd Ave 54 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.