Clamps, surgical, manufacturing · Ohio

AtriCure Mason South

Name: AtriCure Mason South Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Mason, OH · ~23 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 3.7
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

AtriCure Mason South runs at 111% of its industry's injury rate - about level with the typical Clamps, surgical, manufacturing workplace, earning a grade C.

AtriCure Mason South: 3.7 TCR = 111% of Clamps, surgical, manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

AtriCure Mason South safety composite

AtriCure Mason South scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 2%), 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).

18/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 3.66 per 100 workers

Safer than 13% of industry peers
DART rate: F 7.32 per 100 workers

Safer than 2% 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

AtriCure Mason South: 0.0 → 7.3 TCR

Peak year 2021 @ 7.3 TCR · DART/TCR 2× in 2021

AtriCure Mason South's TCR rose 7.3 from 0.0 in 2020 to 7.3 in 2021. In 2021, DART was 2× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 339112 · Mason, OH ABOVE-IND · SMALL

Grade C · TCR 3.7 · 111% of ind

DART 7.3 DART
RANK #31/32
PHOTO LivaNova
BOOK 2y book
INJ 2 inj
SIZE ~23 FTE

Nearest TCR peer: LivaNova (0.0 TCR gap)

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

This site

3.7
LivaNova

3.7
Nurse Assist L

3.7
ECA Medical In

3.7
Cook Incorpora

3.6

What this shows AtriCure Mason South averages 3.7 TCR (111% of the Clamps, surgical, manufacturing BLS benchmark).

AtriCure Mason South TCR series: 2020=0 · 2021=7.3 · BLS 3.3

Where AtriCure Mason South falls in its industry

741 Clamps, surgical, manufacturin establishments

Safer than 13% of graded establishments in this industry, whose median TCR is 1.5.

Grade C

More dangerous than peersSafer than peers

Narrower to Ohio alone (the establishments it most directly competes with for workers and contracts): ranked #31 safest of 32 Clamps, surgical, manufacturin employers in Ohio.

AtriCure Mason South (23 employees, TCR 3.7) among 29 same-industry peers, split at the industry median of 174 employees and a TCR of 1.5

AtriCure Mason South has fewer employees than the Clamps, surgical, manufacturing median and a higher injury rate than the industry's median TCR of 1.5. 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
2021	7.3	7.3	2	0	0
2020	0.0	0.0	0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

339112 · OH · Mason

741 Clamps, surgical, manufacturing employers nationwide with a credible TCR · 22,650 rated employers in Ohio with headcount on file · 159 employers in Mason, OH · 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	LivaNova	ARVADA, CO	3.7 TCR
NAICS-TCR	Cook Incorporated Park 48	BLOOMINGTON, IN	3.6 TCR
NAICS-TCR	Nurse Assist LLC	HALTOM CITY, TX	3.7 TCR
NAICS-TCR	ECA Medical Instruments	THOUSAND OAKS, CA	3.7 TCR
STATE-SIZE	MID EAST PRODUCTION LLC	TIFFIN	23 FTE
STATE-SIZE	Schlessman Seed Co	MILAN	23 FTE
STATE-SIZE	Lake County Nursery	MADISON	23 FTE
STATE-SIZE	LCN Holdings Inc dba Lake County Nursery	MADISON	23 FTE
CITY-NEAR	Intelligrated Systems, LLC, dba Honeywell Intelligrated and its successors	Mason	1,036 FTE
CITY-NEAR	Intelligrated Systems LLC - Installations	Mason	966 FTE
CITY-NEAR	HQ & FIELD	Mason	915 FTE
CITY-NEAR	L3Harris Cincinnati Electronics	Mason	892 FTE
NAT-TCR	Offutt GSSI Custodial Contract	Offutt Afb, NE	3.7 TCR
NAT-TCR	Quench Fine Wines, LTD	Chandler, AZ	3.7 TCR
NAT-TCR	Gemini Industries El Reno Location	El Reno, OK	3.7 TCR
NAT-TCR	111 Uranium Dr, Unit EFG, Sunnyvale, CA	Sunnyvale, CA	3.7 TCR
NAT-SIZE	On Site Repair Services, Inc	Lasalle, IL	23 FTE
NAT-SIZE	Engineering	Concord, NC	23 FTE
NAT-SIZE	U S Electrofused Minerals Inc	Aliquippa, PA	23 FTE
NAT-SIZE	WelchDry	Holland, MI	23 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. 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.