Machine shops · Massachusetts

Sisson Engineering Corp

Name: Sisson Engineering Corp Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Northfield, MA · ~33 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 2.2
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Sisson Engineering Corp runs at 65% of its industry's injury rate - safer than the typical Machine shops workplace, earning a grade B.

Sisson Engineering Corp: 2.2 TCR = 65% of Machine shops BLS 3.3 · 3y Form 300A (see methodology below)

Sisson Engineering Corp safety composite

Sisson Engineering Corp scores strongest on total case rate (tcr) (safer than 71% of same-industry peers) and weakest on dart rate (safer than 21%), 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).

48/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.16 per 100 workers

Safer than 71% of industry peers
DART rate: F 3.17 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%).

Rising injury rate

Sisson Engineering Corp: 0.0 → 3.2 TCR

Peak year 2017 @ 3.3 TCR · DART/TCR 1.47× in 2018

Sisson Engineering Corp's TCR rose 3.2 from 0.0 in 2016 to 3.2 in 2018. Peak filing year was 2017 at 3.3 TCR. In 2018, DART was 1.47× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 332710 · Northfield, MA AT/BELOW-IND · SMALL

Grade B · TCR 2.2 · 65% of ind

DART 3.2 DART
RANK #23/54
PHOTO Lambda Technologies …
BOOK 3y book
INJ 2 inj
SIZE ~33 FTE

Nearest TCR peer: Lambda Technologies Group (0.0 TCR gap)

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

This site

2.2
Lambda Technol

2.2
H-E Parts Inte

2.2
B & L Engineer

2.2
Zigg Holdings

2.2

What this shows Sisson Engineering Corp averages 2.2 TCR (65% of the Machine shops BLS benchmark).

Sisson Engineering Corp TCR series: 2016=0 · 2017=3.3 · 2018=3.2 · BLS 3.3

Where Sisson Engineering Corp falls in its industry

1,821 Machine shops establishments

Safer than 71% of graded establishments in this industry, whose median TCR is 3.5.

Grade B

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #23 safest of 54 Machine shops employers in Massachusetts.

Sisson Engineering Corp (33 employees, TCR 2.2) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 3.5

Sisson Engineering Corp has fewer employees than the Machine shops 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
2018	3.2	3.2	1
2017	3.3	0.0	1
2016	0.0	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

332710 · MA · Northfield

1,821 Machine shops employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 3 employers in Northfield, 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	Lambda Technologies Group	CINCINNATI, OH	2.2 TCR
NAICS-TCR	H-E Parts International - MSUSA	BILLINGS, MT	2.2 TCR
NAICS-TCR	B & L Engineering, Inc.	CRAWFORDSVILLE, IN	2.2 TCR
NAICS-TCR	Zigg Holdings LLC	NIBLEY, UT	2.2 TCR
STATE-SIZE	Green City Growers	SOMMERVILE	33 FTE
STATE-SIZE	Good Chemistry - Holliston	HOLLISTON	33 FTE
STATE-SIZE	Eversource - Boston	BOSTON	33 FTE
STATE-SIZE	NORTH ADAMS-MA27	NORTH ADAMS	33 FTE
CITY-NEAR	FirstLight Power Resources - Northfield Mountain/NERC	Northfield	58 FTE
CITY-NEAR	Northfield Mountain	Northfield	53 FTE
NAT-TCR	Bombardier Transportation - Baltimore - MARC	Baltimore, MD	2.2 TCR
NAT-TCR	LVN - Airport United Airlines Offices	Houston, TX	2.2 TCR
NAT-TCR	CPI Aerostructures Inc.	Edgewood, NY	2.2 TCR
NAT-TCR	MO Admin	Springfield, MO	2.2 TCR
NAT-SIZE	Ltl, LLC	Goldsboro, NC	33 FTE
NAT-SIZE	AC Menards US	Cranberry Township, PA	33 FTE
NAT-SIZE	VF Jeanswear, El Paso Trucking	El Paso, TX	33 FTE
NAT-SIZE	Castle Manor	Lincoln, IL	33 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, 2017, 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.