Mechanical contractors · California

Folsom St. AES

San Francisco, CA · ~2,094 workers · 2 years of OSHA Injury Tracking Application data.

B
Good Safety Record
1.5
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Folsom St. AES runs at 53% of its industry's injury rate - safer than the typical Mechanical contractors workplace, earning a grade B.

Folsom St. AES: 1.5 TCR = 53% of Mechanical contractors BLS 2.8 · 2y Form 300A (see methodology below)

Folsom St. AES safety composite

Folsom St. AES scores strongest on dart rate (safer than 80% 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).

C

72/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 1.49 per 100 workers

Safer than 78% 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%).

TCR Δ

−3.0

2016→2017

Folsom St. AES injury rate improved

Folsom St. AES's TCR fell 3.0 from 3.0 in 2016 to 0.0 in 2017. Peak filing year was 2016 at 3.0 TCR. In 2017, DART was 0× this establishment's average TCR (severity share of cases).

2016=3.0 · 2017=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · San Francisco, CA AT/BELOW-IND · LARGE

Grade B · TCR 1.5 · 53% of ind

  • DART 0.0 DART
  • RANK #111/594
  • PHOTO United Mechanical
  • BOOK 2y book
  • INJ 116 inj
  • SIZE ~2,094 FTE

Nearest TCR peer: United Mechanical (0.0 TCR gap)

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

Folsom St. AES in the TCR neighbourhood

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

TCR

What this shows Folsom St. AES averages 1.5 TCR (53% of the Mechanical contractors BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Folsom St. AES TCR series: 2016=3 · 2017=0 · BLS 2.8

Where Folsom St. AES falls in its industry

5,793 Mechanical contractors establishments

Safer than 78% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #111 safest of 594 Mechanical contractors employers in California.

Folsom St. AES (2,094 employees, TCR 1.5) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 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 05001,0001,5002,0002,500 05101520 Average employees Total Case Rate Folsom St. AES
Folsom St. AES (2,094 employees, TCR 1.5) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Folsom St. AES has more employees than the Mechanical 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 Illnesses Fatalities
2017 0.0 0.0 0 0 0
2016 3.0 1.9 116 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · CA · San Francisco

5,793 Mechanical contractors employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 1,144 employers in 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 United Mechanical 1.5 TCR
NAICS-TCR DK Construction 1.5 TCR
NAICS-TCR Collins Plumbing Inc. 1.5 TCR
NAICS-TCR Construction 1.5 TCR
STATE-SIZE Sharp Chula Vista Medical Ctr 2,094 FTE
STATE-SIZE CAARQUES Campus 2,093 FTE
STATE-SIZE 6403-64030164 2,086 FTE
STATE-SIZE Adventist Health Bakersfield Hospital 2,085 FTE
CITY-NEAR UC San Francisco 18,070 FTE
CITY-NEAR DoorDash, Inc. 12,430 FTE
CITY-NEAR UC San Francisco Health 12,262 FTE
CITY-NEAR SFO - Airport United Airlines Offices 11,622 FTE
NAT-TCR Interstate Building Materials Inc 1.5 TCR
NAT-TCR 6354-FL18 1.5 TCR
NAT-TCR USS Edgar Thomson Plant 1.5 TCR
NAT-TCR Lorain Tubular 1.5 TCR
NAT-SIZE Otsuka America Pharmaceutical, Inc. (OAPI) 2,094 FTE
NAT-SIZE Administracion de familias y Ninos 2,093 FTE
NAT-SIZE Cardinal Health South Campus 2,093 FTE
NAT-SIZE Peterbilt Motors Company 2,095 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: 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.