Cellular phone tower construction · California

Main Office

San Bernardino, CA · ~32 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
15.1
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Main Office runs at 540% of its industry's injury rate - far more dangerous than the typical Cellular phone tower construction workplace, earning a grade F.

Main Office: 15.1 TCR = 540% of Cellular phone tower construction BLS 2.8 · 2y Form 300A (see methodology below)

Main Office safety composite

Main Office scores strongest on dart rate (safer than 78% of same-industry peers) and weakest on total case rate (tcr) (safer than 1%), 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).

D

41/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 15.13 per 100 workers

Safer than 1% of industry peers

DART rate
B 0 per 100 workers

Safer than 78% of industry peers

Fatalities
D 0

Safer than 52% 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

−30.3

2017→2022

Main Office injury rate improved

Main Office's TCR fell 30.3 from 30.3 in 2017 to 0.0 in 2022. Peak filing year was 2017 at 30.3 TCR. In 2022, DART was 0× this establishment's average TCR (severity share of cases).

2017=30.3 · 2022=0.0

OSHA ITA Form 300A scorecard

Establishment book 237130 · San Bernardino, CA ABOVE-IND · SMALL

Grade F · TCR 15.1 · 540% of ind

  • DART 0.0 DART
  • RANK #146/147
  • PHOTO Circle H Constructio…
  • BOOK 2y book
  • INJ 2 inj
  • SIZE ~32 FTE

Nearest TCR peer: Circle H Construction, Inc. (0.0 TCR gap)

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

Main Office in the TCR neighbourhood

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

TCR

What this shows Main Office averages 15.1 TCR (540% of the Cellular phone tower construction BLS benchmark).

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

Main Office TCR series: 2017=30.3 · 2022=0 · BLS 2.8

Where Main Office falls in its industry

1,605 Cellular phone tower construct establishments

Safer than 1% of graded establishments in this industry, whose median TCR is 2.0.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #146 safest of 147 Cellular phone tower construct employers in California.

Main Office (32 employees, TCR 15.1) among 29 same-industry peers, split at the industry median of 74 employees and a TCR of 2.0 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 0100200300400500 05101520 Average employees Total Case Rate Main Office
Main Office (32 employees, TCR 15.1) among 29 same-industry peers, split at the industry median of 74 employees and a TCR of 2.0

Main Office has fewer employees than the Cellular phone tower construction median and a higher injury rate than the industry's median TCR of 2.0. 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
2022 0.0 0.0 0 0 0
2017 30.3 20.2 2 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

237130 · CA · San Bernardino

1,605 Cellular phone tower construction employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 332 employers in San Bernardino, 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 Circle H Construction, Inc. 15.1 TCR
NAICS-TCR NA-US-CA-Foster City-Foster City Boulevard 15.0 TCR
NAICS-TCR Lewis County Rural Electric Cooperative 15.0 TCR
NAICS-TCR Karian Peterson Power Line Contracting LLC 14.9 TCR
STATE-SIZE Schreiner Farms 32 FTE
STATE-SIZE FIVE POINTS T.I.C. 32 FTE
STATE-SIZE OFFICE 32 FTE
STATE-SIZE Brocchini Farms Inc. 32 FTE
CITY-NEAR Sheriff Department 3,321 FTE
CITY-NEAR North America Fulfillment Centers (FCs) : ONT2 2,856 FTE
CITY-NEAR Transitional Assistance Department 2,824 FTE
CITY-NEAR Amazon Transportation Services : ONT5 2,475 FTE
NAT-TCR IAD - Ground Ops 15.1 TCR
NAT-TCR 2073-SW-20730090-CS 15.1 TCR
NAT-TCR Shepard Steel Co., Inc. - Hartford 15.1 TCR
NAT-TCR 4769-716-Williams Sonoma 15.1 TCR
NAT-SIZE 6458-ZCMB 32 FTE
NAT-SIZE NFI Interactive Logistics, LLC-125 Capital Road 32 FTE
NAT-SIZE Liberty Elementary School 32 FTE
NAT-SIZE 105/OKC 32 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: 2022, 2017. 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.