Air system balancing and testing · Wisconsin

Multistack South

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

Sparta, WI · ~22 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.8
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Multistack South runs at 28% of its industry's injury rate - far safer than the typical Air system balancing and testing workplace, earning a grade A.

Multistack South: 0.8 TCR = 28% of Air system balancing and testing BLS 2.8 · 4y Form 300A (see methodology below)

Multistack South safety composite

Multistack South scores strongest on total case rate (tcr) (safer than 92% of same-industry peers) and weakest on fatalities (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).

78/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): A 0.77 per 100 workers

Safer than 92% of industry peers
DART rate: B 0 per 100 workers

Safer than 80% 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%).

Multistack South held a steady TCR band

Multistack South's TCR held near 0.0 from 0.0 in 2020 to 0.0 in 2023. Peak filing year was 2022 at 3.1 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2020=0.0 · 2021=0.0 · 2022=3.1 · 2023=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Sparta, WI AT/BELOW-IND · SMALL

Grade A · TCR 0.8 · 28% of ind

DART 0.0 DART
RANK #12/154
PHOTO Simakas Company, Inc.
BOOK 4y book
INJ 1 inj
SIZE ~22 FTE

Nearest TCR peer: Simakas Company, Inc. (0.0 TCR gap)

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

This site

0.8
Simakas Compan

0.8
Armistead Mech

0.8
Letsos Company

0.8
Moody Sprinkle

0.8

What this shows Multistack South averages 0.8 TCR (28% of the Air system balancing and testing BLS benchmark).

Multistack South TCR series: 2020=0 · 2021=0 · 2022=3.1 · 2023=0 · BLS 2.8

Where Multistack South falls in its industry

5,793 Air system balancing and testi establishments

Safer than 92% of graded establishments in this industry, whose median TCR is 3.3.

Grade A

More dangerous than peersSafer than peers

Narrower to Wisconsin alone (the establishments it most directly competes with for workers and contracts): ranked #12 safest of 154 Air system balancing and testi employers in Wisconsin.

Multistack South (22 employees, TCR 0.8) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Multistack South has fewer employees than the Air system balancing and testing 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	Injuries
2023	0.0	0
2022	3.1	1
2021	0.0	0
2020	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · WI · Sparta

5,793 Air system balancing and testing employers nationwide with a credible TCR · 12,834 rated employers in Wisconsin with headcount on file · 44 employers in Sparta, WI · 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	Simakas Company, Inc.	MARS, PA	0.8 TCR
NAICS-TCR	Armistead Mechanical-New Jersey	WALDWICK, NJ	0.8 TCR
NAICS-TCR	Letsos Company	HOUSTON, TX	0.8 TCR
NAICS-TCR	Moody Sprinkler Co., Inc.	KINGSPORT, TN	0.8 TCR
STATE-SIZE	URUS Production Shawano Stony Hill	SHAWANO	22 FTE
STATE-SIZE	Weston	WESTON	22 FTE
STATE-SIZE	Jackson Electric Cooperative	BLACK RIVER FALLS	22 FTE
STATE-SIZE	Menomonie Service Center	MENOMONIE	22 FTE
CITY-NEAR	Sparta Area School District	Sparta	587 FTE
CITY-NEAR	Mathews Archery, Inc	Sparta	345 FTE
CITY-NEAR	Northern Engraving Corporation	Sparta	321 FTE
CITY-NEAR	Plant Four	Sparta	307 FTE
NAT-TCR	Assessor's Office	Bakersfield, CA	0.8 TCR
NAT-TCR	VersaLogic	Tualatin, OR	0.8 TCR
NAT-TCR	Northern A-1 Services - Whitehall	Whitehall, MI	0.8 TCR
NAT-TCR	SEGLC	Troy, MI	0.8 TCR
NAT-SIZE	Tss - Wy	Cheyenne, WY	22 FTE
NAT-SIZE	Flagstaff Progressive	Flagstaff, AZ	22 FTE
NAT-SIZE	Winchester Warehouse	Winchester, VA	22 FTE
NAT-SIZE	Water Distribution	Decatur, IL	22 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. 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.