Mechanical contractors · Massachusetts

J.C. Cannistraro LLC

Name: J.C. Cannistraro LLC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Watertown, MA · ~773 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 2.1
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

J.C. Cannistraro LLC runs at 77% of its industry's injury rate - safer than the typical Mechanical contractors workplace, earning a grade B.

J.C. Cannistraro LLC: 2.1 TCR = 77% of Mechanical contractors BLS 2.8 · 3y Form 300A (see methodology below)

J.C. Cannistraro LLC safety composite

J.C. Cannistraro LLC scores strongest on total case rate (tcr) (safer than 66% of same-industry peers) and weakest on dart rate (safer than 51%), 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).

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.15 per 100 workers

Safer than 66% of industry peers
DART rate: D 1.1 per 100 workers

Safer than 51% 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

J.C. Cannistraro LLC: 1.6 → 2.5 TCR

Peak year 2021 @ 2.5 TCR · DART/TCR 0.51× in 2021

J.C. Cannistraro LLC's TCR rose 0.9 from 1.6 in 2019 to 2.5 in 2021. In 2021, DART was 0.51× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Watertown, MA AT/BELOW-IND · MID

Grade B · TCR 2.1 · 77% of ind

DART 1.1 DART
RANK #43/140
PHOTO TWC Services, Inc.
BOOK 3y book
INJ 48 inj
SIZE ~773 FTE

Nearest TCR peer: TWC Services, Inc. (0.0 TCR gap)

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

This site

2.1
TWC Services,

2.1
Bear Industrie

2.1
TMS, Inc.

2.1
Stephens Plumb

2.1

What this shows J.C. Cannistraro LLC averages 2.1 TCR (77% of the Mechanical contractors BLS benchmark).

J.C. Cannistraro LLC TCR series: 2019=1.6 · 2020=2.4 · 2021=2.5 · BLS 2.8

Where J.C. Cannistraro LLC falls in its industry

5,793 Mechanical contractors establishments

Safer than 66% of graded establishments in this industry, whose median TCR is 3.3.

Grade B

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #43 safest of 140 Mechanical contractors employers in Massachusetts.

J.C. Cannistraro LLC (773 employees, TCR 2.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

J.C. Cannistraro LLC has more employees than the Mechanical contractors median and a lower 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
2021	2.5	1.1	18
2020	2.4	1.0	15
2019	1.6	0.3	15

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MA · Watertown

5,793 Mechanical contractors employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 43 employers in Watertown, MA · 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	TWC Services, Inc.	DES MOINES, IA	2.1 TCR
NAICS-TCR	Bear Industries, Inc	NEWARK, DE	2.1 TCR
NAICS-TCR	TMS, Inc.	KANSAS CITY, KS	2.1 TCR
NAICS-TCR	Stephens Plumbing, Inc.	BIRMINGHAM, AL	2.1 TCR
STATE-SIZE	Consumer Product Distributors LLC dba J Polep Distribution Services	CHICOPEE	774 FTE
STATE-SIZE	Linden Ponds	HINGHAM	774 FTE
STATE-SIZE	EMD Millipore Corporation - NA Field Service	BURLINGTON	771 FTE
STATE-SIZE	One Federal Street	BOSTON	775 FTE
CITY-NEAR	WATERTOWN (MAWAT)	Watertown	531 FTE
CITY-NEAR	MAWAT - WATERTOWN	Watertown	497 FTE
CITY-NEAR	1442 - Watertown	Watertown	314 FTE
CITY-NEAR	Doble Engineering Company	Watertown	286 FTE
NAT-TCR	Sodexo at Methodist Med-Oak Ridge Hskp	Oak Ridge, TN	2.1 TCR
NAT-TCR	Mclair Abp	Montclair, NJ	2.1 TCR
NAT-TCR	H8-Farmingdale North Showroom	Farmingdale, NY	2.1 TCR
NAT-TCR	Instrumentation : Jacksonville IPD	Jacksonville, AL	2.1 TCR
NAT-SIZE	Novartis Services Incorporated	East Hanover, NJ	773 FTE
NAT-SIZE	St. Joseph's Physicians	Liverpool, NY	773 FTE
NAT-SIZE	Astoria	New York, NY	773 FTE
NAT-SIZE	Cleveland Clinic Avon Hospital	Avon, OH	773 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. 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.