Buildings, prefabricated metal, manufacturing · Missouri

Porta-King Building Systems

Name: Porta-King Building Systems Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Montgomery City, MO · ~96 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 7.3
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Porta-King Building Systems runs at 221% of its industry's injury rate - far more dangerous than the typical Buildings, prefabricated metal, manufacturing workplace, earning a grade F.

Porta-King Building Systems: 7.3 TCR = 221% of Buildings, prefabricated metal, manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Porta-King Building Systems safety composite

Porta-King Building Systems scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (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).

32/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 7.28 per 100 workers

Safer than 21% of industry peers
DART rate: F 3.07 per 100 workers

Safer than 32% 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

Porta-King Building Systems: 3.5 → 6.1 TCR

Peak year 2018 @ 12.2 TCR · DART/TCR 0.42× in 2019

Porta-King Building Systems's TCR rose 2.7 from 3.5 in 2016 to 6.1 in 2019. Peak filing year was 2018 at 12.2 TCR. In 2019, DART was 0.42× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 332311 · Montgomery City, MO ABOVE-IND · SMALL

Grade F · TCR 7.3 · 221% of ind

DART 3.1 DART
RANK #8/9
PHOTO Breitinger Company
BOOK 3y book
INJ 22 inj
SIZE ~96 FTE

Nearest TCR peer: Breitinger Company (0.0 TCR gap)

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

This site

7.3
Breitinger Com

7.3
United Structu

7.3
4Front Enginee

7.3
GPC

7.3

What this shows Porta-King Building Systems averages 7.3 TCR (221% of the Buildings, prefabricated metal, manufacturing BLS benchmark).

Porta-King Building Systems TCR series: 2016=3.5 · 2018=12.2 · 2019=6.1 · BLS 3.3

Where Porta-King Building Systems falls in its industry

393 Buildings, prefabricated metal establishments

Safer than 21% of graded establishments in this industry, whose median TCR is 4.1.

Grade F

More dangerous than peersSafer than peers

Narrower to Missouri alone (the establishments it most directly competes with for workers and contracts): ranked #8 safest of 9 Buildings, prefabricated metal employers in Missouri.

Porta-King Building Systems (96 employees, TCR 7.3) among 29 same-industry peers, split at the industry median of 75 employees and a TCR of 4.1

Porta-King Building Systems has more employees than the Buildings, prefabricated metal, manufact median and a higher injury rate than the industry's median TCR of 4.1. 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
2019	6.1	3.1	6
2018	12.2	6.6	13
2016	3.5	2.3	3

OSHA ITA peer cross-reference

Establishment peer ledger

332311 · MO · Montgomery City

393 Buildings, prefabricated metal, manufacturing employers nationwide with a credible TCR · 10,075 rated employers in Missouri with headcount on file · 8 employers in Montgomery City, MO · 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	Breitinger Company	MANSFIELD, OH	7.3 TCR
NAICS-TCR	United Structures of America Inc.	PORTLAND, TN	7.3 TCR
NAICS-TCR	4Front Engineer Solutions- Muskego	MUSKEGO, WI	7.3 TCR
NAICS-TCR	GPC	WEST ALLIS, WI	7.3 TCR
STATE-SIZE	093 - Northeast Missouri	WENTZVILLE	96 FTE
STATE-SIZE	McGrath & Associates Inc	ST LOUIS	96 FTE
STATE-SIZE	Semo Milling LLC	SCOTT CITY	96 FTE
STATE-SIZE	Riviana Foods St Louis	ST. LOUIS	96 FTE
CITY-NEAR	Supreme Cuisine	Montgomery City	83 FTE
CITY-NEAR	Bratchers Market #170	Montgomery City	38 FTE
CITY-NEAR	Montgomery City Purina Feed Mill	Montgomery City	29 FTE
CITY-NEAR	285454-MONTGOMERY CITY PO	Montgomery City	27 FTE
NAT-TCR	OFFICE	Union City, OH	7.3 TCR
NAT-TCR	JE Berkowitz	Pedricktown, NJ	7.3 TCR
NAT-TCR	Colorado Product Services	Carbondale, CO	7.3 TCR
NAT-TCR	Woodlawn Manor,Inc	Monroe, LA	7.3 TCR
NAT-SIZE	Lerner Publishing Group - Corporate	Minneapolis, MN	96 FTE
NAT-SIZE	Consulate Healthcare of Lakeland	Lakeland, FL	96 FTE
NAT-SIZE	Shippers Products	Sheridan, AR	96 FTE
NAT-SIZE	HydroChem LLC-DTE	Monroe, MI	96 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: 2019, 2018, 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.