Janitorial services · California

Merck South San Francisco

South San Francisco, CA · ~26 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
0.0
Avg TCR
4.5
Industry avg
0
Fatalities
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The verdict

Merck South San Francisco runs at 0% of its industry's injury rate - about level with the typical Janitorial services workplace, earning a grade C.

Merck South San Francisco: 0.0 TCR = 0% of Janitorial services BLS 4.5 · 3y Form 300A (see methodology below)

Merck South San Francisco safety composite

Merck South San Francisco scores strongest on total case rate (tcr) (safer than 100% of same-industry peers) and weakest on fatalities (safer than 50%), 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).

B

80/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0 per 100 workers

Safer than 100% of industry peers

DART rate
B 0 per 100 workers

Safer than 78% 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%).

Merck South San Francisco held a steady TCR band

Merck South San Francisco's TCR held near 0.0 from 0.0 in 2022 to 0.0 in 2024. Peak filing year was 2022 at 0.0 TCR.

2022=0.0 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 561720 · South San Francisco, CA AT/BELOW-IND · SMALL

Grade C · TCR 0.0 · 0% of ind

  • DART 0.0 DART
  • RANK #0/368
  • PHOTO DEL0000222 Dover Jan…
  • BOOK 3y book
  • INJ 0 inj
  • SIZE ~26 FTE

Nearest TCR peer: DEL0000222 Dover Janitorial (0.0 TCR gap)

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

Merck South San Francisco in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Merck South San Francisco averages 0.0 TCR (0% of the Janitorial services BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-09-26

Merck South San Francisco TCR series: 2022=0 · 2023=0 · 2024=0 · BLS 4.5

Where Merck South San Francisco falls in its industry

4,064 Janitorial services establishments

Safer than 100% of graded establishments in this industry, whose median TCR is 3.2.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #0 safest of 368 Janitorial services employers in California.

Merck South San Francisco (26 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 56 employees and a TCR of 3.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 02004006008001,000 051015 Average employees Total Case Rate Merck South San Francisco
Merck South San Francisco (26 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 56 employees and a TCR of 3.2

Merck South San Francisco has fewer employees than the Janitorial services median and a lower injury rate than the industry's median TCR of 3.2. 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 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

561720 · CA · South San Francisco

4,064 Janitorial services employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 136 employers in South San Francisco, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR DEL0000222 Dover Janitorial 0.0 TCR
NAICS-TCR Corporate 0.0 TCR
NAICS-TCR MANGUAL OFFICE CLEANING 0.0 TCR
NAICS-TCR DEL0000302 NCC JANITORIAL 0.1 TCR
STATE-SIZE Valley Biosystems 26 FTE
STATE-SIZE WAG HOTELS - West Los Angeles 26 FTE
STATE-SIZE Delano Joint Union High School 26 FTE
STATE-SIZE 10484 26 FTE
CITY-NEAR Genentech SSF 13,259 FTE
CITY-NEAR 2032-02120951 1,497 FTE
CITY-NEAR Aspiranet 1,182 FTE
CITY-NEAR 0206-02620951 1,178 FTE
NAT-TCR Springhill Suites Houston Intercontinental AP 0.0 TCR
NAT-TCR 00525 North Temple Office 0.0 TCR
NAT-TCR Burrow Global Services, LLC 0.0 TCR
NAT-TCR Rogers Group, Inc 0.0 TCR
NAT-SIZE Jackson 26 FTE
NAT-SIZE HTF Mechanical Services, Inc. 26 FTE
NAT-SIZE Schmelzer Paint co, Inc 26 FTE
NAT-SIZE Hennepin County Medical Center - Richfield Clinic 26 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, 2022. 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.