Plumbing and heating contractors · Massachusetts

Arrell Corporation

Cambridge, MA · ~22 workers · 5 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
13.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Arrell Corporation runs at 464% of its industry's injury rate - far more dangerous than the typical Plumbing and heating contractors workplace, earning a grade F.

Arrell Corporation: 13.0 TCR = 464% of Plumbing and heating contractors BLS 2.8 · 5y Form 300A (see methodology below)

Arrell Corporation safety composite

Arrell Corporation scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 1%), 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

15/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 12.98 per 100 workers

Safer than 5% of industry peers

DART rate
F 19.75 per 100 workers

Safer than 1% of industry peers

Fatalities
D 0

Safer than 51% 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

Arrell Corporation: 0.0 → 29.6 TCR

Peak year 2021 @ 29.6 TCR · DART/TCR 1.52× in 2021

Arrell Corporation's TCR rose 29.6 from 0.0 in 2017 to 29.6 in 2021. In 2021, DART was 1.52× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Cambridge, MA ABOVE-IND · SMALL

Grade F · TCR 13.0 · 464% of ind

  • DART 19.8 DART
  • RANK #136/140
  • PHOTO KDTM, LLC D/B/A Happ…
  • BOOK 5y book
  • INJ 13 inj
  • SIZE ~22 FTE

Nearest TCR peer: KDTM, LLC D/B/A Happy Home Services (0.0 TCR gap)

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

Arrell Corporation in the TCR neighbourhood

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

TCR

What this shows Arrell Corporation averages 13.0 TCR (464% of the Plumbing and heating contractors BLS benchmark).

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

Arrell Corporation TCR series: 2017=0 · 2018=14.4 · 2019=10.5 · 2020=10.4 · 2021=29.6 · BLS 2.8

Where Arrell Corporation falls in its industry

5,793 Plumbing and heating contracto establishments

Safer than 5% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #136 safest of 140 Plumbing and heating contracto employers in Massachusetts.

Arrell Corporation (22 employees, TCR 13.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 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 050100150200250 05101520 Average employees Total Case Rate Arrell Corporation
Arrell Corporation (22 employees, TCR 13.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Arrell Corporation has fewer employees than the Plumbing and heating contractors median and a higher injury rate than the industry's median TCR of 3.3. 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
2021 29.6 19.8 6 0 0
2020 10.4 10.4 2 0 0
2019 10.5 10.5 2 0 0
2018 14.4 14.4 3 0 0
2017 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MA · Cambridge

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 149 employers in Cambridge, MA · 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 KDTM, LLC D/B/A Happy Home Services 13.0 TCR
NAICS-TCR Alps A/C and Heating Inc. 13.0 TCR
NAICS-TCR Collier's Commercial Services, Inc. 13.0 TCR
NAICS-TCR Brennan Heating and Air 13.0 TCR
STATE-SIZE Great Falls Aquaculture 22 FTE
STATE-SIZE ANP Bellingham Energy Company LLC 22 FTE
STATE-SIZE 65 Essex Road 22 FTE
STATE-SIZE Ryan Construction, Inc. 22 FTE
CITY-NEAR Philips NAM Field Sales & Service 5,136 FTE
CITY-NEAR Vinfen Corporation 2,662 FTE
CITY-NEAR Biogen - Cambridge 2,478 FTE
CITY-NEAR Cambridge Campus 2,473 FTE
NAT-TCR Transportation 13.0 TCR
NAT-TCR 6458-ZSIO 13.0 TCR
NAT-TCR Superior Grocers #134 13.0 TCR
NAT-TCR HG245 13.0 TCR
NAT-SIZE Diamond Place- Oskaloosa 22 FTE
NAT-SIZE Dental Laboratory 22 FTE
NAT-SIZE Abel Recon 22 FTE
NAT-SIZE ACL Construction Company Inc 22 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, 2017. 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.