Machine shops · Massachusetts

Boston Centerless

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

Woburn, MA · ~110 workers · 5 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.9
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Boston Centerless runs at 89% of its industry's injury rate - about level with the typical Machine shops workplace, earning a grade C.

Boston Centerless: 2.9 TCR = 89% of Machine shops BLS 3.3 · 5y Form 300A (see methodology below)

Boston Centerless safety composite

Boston Centerless scores strongest on total case rate (tcr) (safer than 58% of same-industry peers) and weakest on dart rate (safer than 47%), 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).

52/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.94 per 100 workers

Safer than 58% of industry peers
DART rate: D 0.77 per 100 workers

Safer than 47% 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

−3.0

2019→2023

Boston Centerless injury rate improved

Boston Centerless's TCR fell 3.0 from 5.3 in 2019 to 2.3 in 2023. Peak filing year was 2019 at 5.3 TCR. In 2023, DART was 0.26× this establishment's average TCR (severity share of cases).

2019=5.3 · 2020=0.0 · 2021=4.8 · 2022=2.3 · 2023=2.3

OSHA ITA Form 300A scorecard

Establishment book 332710 · Woburn, MA AT/BELOW-IND · MID

Grade C · TCR 2.9 · 89% of ind

DART 0.8 DART
RANK #30/54
PHOTO Precision Defense Se…
BOOK 5y book
INJ 16 inj
SIZE ~110 FTE

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

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This site

2.9
Precision Defe

2.9
Slabe Machine

2.9
Shapes Precisi

2.9
Onamac Industr

2.9

What this shows Boston Centerless averages 2.9 TCR (89% of the Machine shops BLS benchmark).

Boston Centerless TCR series: 2019=5.3 · 2020=0 · 2021=4.8 · 2022=2.3 · 2023=2.3 · BLS 3.3

Where Boston Centerless falls in its industry

1,821 Machine shops establishments

Safer than 58% of graded establishments in this industry, whose median TCR is 3.5.

Grade C

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #30 safest of 54 Machine shops employers in Massachusetts.

Boston Centerless (110 employees, TCR 2.9) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 3.5

Boston Centerless has more 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
2023	2.3	0.8	3
2022	2.3	0.8	3
2021	4.8	1.9	5
2020	0.0	0.0	0
2019	5.3	4.2	5

OSHA ITA peer cross-reference

Establishment peer ledger

332710 · MA · Woburn

1,821 Machine shops employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 187 employers in Woburn, 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	Precision Defense Services, Inc.	IRWIN, PA	2.9 TCR
NAICS-TCR	Slabe Machine PRoducts	WILLOUGHBY, OH	2.9 TCR
NAICS-TCR	Shapes Precision Manufacturing	PALM BAY, FL	2.9 TCR
NAICS-TCR	Onamac Industries Inc	EVERETT, WA	2.9 TCR
STATE-SIZE	PHRG-BOS	WALTHAM	110 FTE
STATE-SIZE	The Waterproofing Company LLC	BOSTON	110 FTE
STATE-SIZE	Tresca Brothers Sand and Gravel	MILLIS	110 FTE
STATE-SIZE	Viant	CHICOPEE	110 FTE
CITY-NEAR	Raytheon_Woburn_MA	Woburn	1,364 FTE
CITY-NEAR	Marshalls Woburn Merchants, Inc	Woburn	1,044 FTE
CITY-NEAR	Woburn Marshalls Distribution Center	Woburn	1,029 FTE
CITY-NEAR	GEI Consultants, Inc.	Woburn	837 FTE
NAT-TCR	Wallace Electrical Construction, Inc.	South St. Paul, MN	2.9 TCR
NAT-TCR	Raley's 339-Modesto	Modesto, CA	2.9 TCR
NAT-TCR	Frencken America	Liberty Lake, WA	2.9 TCR
NAT-TCR	Thomas Pump & Machinery, Inc.	Slidell, LA	2.9 TCR
NAT-SIZE	Topura America Fastener	Bowling Green, KY	110 FTE
NAT-SIZE	DGS Healthcare Elkin, Inc DBA Hugh Chatham Nursing Center	Elkin, NC	110 FTE
NAT-SIZE	Rohn Products LLC	Peoria, IL	110 FTE
NAT-SIZE	Summerfield Healthcare Center	Santa Rosa, CA	110 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: 2023, 2022, 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.