Lessors of nonresidential buildings (except miniwarehouses) · California

Prologis - Ontario

Name: Prologis - Ontario Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Ontario, CA · ~31 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 1.3
Avg TCR: 1.4
Industry avg: 0
Fatalities

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The verdict

Prologis - Ontario runs at 95% of its industry's injury rate - about level with the typical Lessors of nonresidential buildings (except miniwarehouses) workplace, earning a grade C.

Prologis - Ontario: 1.3 TCR = 95% of Lessors of nonresidential buildings (except miniwarehouses) BLS 1.4 · 2y Form 300A (see methodology below)

Prologis - Ontario safety composite

Prologis - Ontario scores strongest on total case rate (tcr) (safer than 75% of same-industry peers) and weakest on dart rate (safer than 31%), 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).

53/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 1.33 per 100 workers

Safer than 75% of industry peers
DART rate: F 2.67 per 100 workers

Safer than 31% 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

Prologis - Ontario: 0.0 → 2.7 TCR

Peak year 2024 @ 2.7 TCR · DART/TCR 2.01× in 2024

Prologis - Ontario's TCR rose 2.7 from 0.0 in 2023 to 2.7 in 2024. In 2024, DART was 2.01× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 531120 · Ontario, CA AT/BELOW-IND · SMALL

Grade C · TCR 1.3 · 95% of ind

DART 2.7 DART
RANK #12/45
PHOTO Greater Boston
BOOK 2y book
INJ 1 inj
SIZE ~31 FTE

Nearest TCR peer: Greater Boston (0.0 TCR gap)

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This site

1.3
Greater Boston

1.3
1 Rock PMO

1.3
4214 Orlando S

1.3
4542 Tulsa

1.3

What this shows Prologis - Ontario averages 1.3 TCR (95% of the Lessors of nonresidential buildings (except miniwarehouses) BLS benchmark).

Prologis - Ontario TCR series: 2023=0 · 2024=2.7 · BLS 1.4

Where Prologis - Ontario falls in its industry

302 Lessors of nonresidential buil establishments

Safer than 75% of graded establishments in this industry, whose median TCR is 2.6.

Grade C

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #12 safest of 45 Lessors of nonresidential buil employers in California.

Prologis - Ontario (31 employees, TCR 1.3) among 29 same-industry peers, split at the industry median of 44 employees and a TCR of 2.6

Prologis - Ontario has fewer employees than the Lessors of nonresidential buildings (exc median and a lower injury rate than the industry's median TCR of 2.6. 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
2024	2.7	2.7	1	0	0
2023	0.0	0.0	0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

531120 · CA · Ontario

302 Lessors of nonresidential buildings (except miniwarehouses) employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 599 employers in Ontario, CA · 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	Greater Boston	CAMBRIDGE, MA	1.3 TCR
NAICS-TCR	1 Rock PMO	NEW YORK, NY	1.3 TCR
NAICS-TCR	4214 Orlando Shared Services	ORLANDO, FL	1.3 TCR
NAICS-TCR	4542 Tulsa	TULSA, OK	1.3 TCR
STATE-SIZE	GCF	SANTA MARIA	31 FTE
STATE-SIZE	Nielsen Farms	SALINAS	31 FTE
STATE-SIZE	Western Star Nurseries LLC	SUNOL	31 FTE
STATE-SIZE	Progressive Growers Inc	VISTA	31 FTE
CITY-NEAR	Prime Healthcare Services Inc. Location: St. Mary's, Passaic LLC 46-3499370 (HP29)	Ontario	10,997 FTE
CITY-NEAR	CAONA - ONTARIO HUB	Ontario	4,372 FTE
CITY-NEAR	ONTARIO HUB (CAONA)	Ontario	3,354 FTE
CITY-NEAR	Atlantic Solutions Group Inc, Inc. DBA Empire Workforce Solutions	Ontario	3,240 FTE
NAT-TCR	Mercedes Benz of Huntington	Huntington, NY	1.3 TCR
NAT-TCR	Silver Ships	Theodore, AL	1.3 TCR
NAT-TCR	AES Warrior Run	Cumberland, MD	1.3 TCR
NAT-TCR	Alliance Sheets, LLC	Bristol, IN	1.3 TCR
NAT-SIZE	Northeast Riggers, Inc.	Farmington, CT	31 FTE
NAT-SIZE	Waterford Lakes	Orlando, FL	31 FTE
NAT-SIZE	Geiser Grand Hotel	Baker City, OR	31 FTE
NAT-SIZE	Marquis Gardens Place	Uniontown, PA	31 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: 2024, 2023. 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.