Plumbing contractors · Tennessee

Koorsen Fire & Security Nashville

Name: Koorsen Fire & Security Nashville Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Nashville, TN · ~81 workers · 4 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

Koorsen Fire & Security Nashville runs at 76% of its industry's injury rate - safer than the typical Plumbing contractors workplace, earning a grade B.

Koorsen Fire & Security Nashville: 2.1 TCR = 76% of Plumbing contractors BLS 2.8 · 4y Form 300A (see methodology below)

Koorsen Fire & Security Nashville safety composite

Koorsen Fire & Security Nashville scores strongest on total case rate (tcr) (safer than 66% of same-industry peers) and weakest on dart rate (safer than 36%), 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 2.13 per 100 workers

Safer than 66% of industry peers
DART rate: D 2.31 per 100 workers

Safer than 36% 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

Koorsen Fire & Security Nashville: 2.0 → 3.5 TCR

Peak year 2020 @ 3.5 TCR · DART/TCR 1.08× in 2020

Koorsen Fire & Security Nashville's TCR rose 1.5 from 2.0 in 2016 to 3.5 in 2020. In 2020, DART was 1.08× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Nashville, TN AT/BELOW-IND · SMALL

Grade B · TCR 2.1 · 76% of ind

DART 2.3 DART
RANK #41/117
PHOTO AMERICAN MECHANICAL …
BOOK 4y book
INJ 6 inj
SIZE ~81 FTE

Nearest TCR peer: AMERICAN MECHANICAL CONTRACTORS (0.0 TCR gap)

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

This site

2.1
AMERICAN MECHA

2.1
Hiller Birming

2.1
Carrier Commer

2.1
Nelson Carlson

2.1

What this shows Koorsen Fire & Security Nashville averages 2.1 TCR (76% of the Plumbing contractors BLS benchmark).

Koorsen Fire & Security Nashville TCR series: 2016=2 · 2017=1.8 · 2019=1.3 · 2020=3.5 · BLS 2.8

Where Koorsen Fire & Security Nashville falls in its industry

5,793 Plumbing 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 Tennessee alone (the establishments it most directly competes with for workers and contracts): ranked #41 safest of 117 Plumbing contractors employers in Tennessee.

Koorsen Fire & Security Nashville (81 employees, TCR 2.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Koorsen Fire & Security Nashville has more employees than the Plumbing 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
2020	3.5	2.3	3
2019	1.3	0.0	1
2017	1.8	0.0	1
2016	2.0	2.0	1

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · TN · Nashville

5,793 Plumbing contractors employers nationwide with a credible TCR · 10,743 rated employers in Tennessee with headcount on file · 1,187 employers in Nashville, TN · 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	AMERICAN MECHANICAL CONTRACTORS	KINGSPORT, TN	2.1 TCR
NAICS-TCR	Hiller Birmingham	BIRMINGHAM, AL	2.1 TCR
NAICS-TCR	Carrier Commercial Services (Ft Lauderdale)	FT LAUDERDALE, FL	2.1 TCR
NAICS-TCR	Nelson Carlson Mechanical	ROCKFORD, IL	2.1 TCR
STATE-SIZE	Alexander Metals Inc	NASHVILLE	81 FTE
STATE-SIZE	Coca-Cola Bottling Work's Of Tullahoma, Inc. - Corporate	TULLAHOMA	81 FTE
STATE-SIZE	Apex Canvas Co LLC	LOUDON	81 FTE
STATE-SIZE	Middle Tennessee Lumber Company, Inc. - MT	BURNS	81 FTE
CITY-NEAR	Parallon Enterprises, LLC	Nashville	15,267 FTE
CITY-NEAR	METROPOLITAN GOVT. OF NASHVILLE,& DAVIDSON COUNTY	Nashville	10,278 FTE
CITY-NEAR	METRO NASHVILLE PUBLIC SCHOOLS	Nashville	9,049 FTE
CITY-NEAR	TriStar Centennial Medical Center	Nashville	3,106 FTE
NAT-TCR	Sungwon Annandale LLC	Springfield, VA	2.1 TCR
NAT-TCR	West Feliciana Hospital	Saint Francisville, LA	2.1 TCR
NAT-TCR	Brunswick Electric Membership Corp. Supply District	Supply, NC	2.1 TCR
NAT-TCR	Nelson Global Products - Arcadia	Arcadia, WI	2.1 TCR
NAT-SIZE	Owenton Center	Owenton, KY	81 FTE
NAT-SIZE	MIC Group LLC - Brenham West	Brenham, TX	81 FTE
NAT-SIZE	Reading Equipment Distribution Claremore	Claremore, OK	81 FTE
NAT-SIZE	Perry Roofing Contractors	Gainesville, FL	81 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: 2020, 2019, 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.