Fiber optic cable transmission line construction · Indiana

Mainstream Fiber Networks

Nashville, IN · ~145 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
6.7
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Mainstream Fiber Networks runs at 240% of its industry's injury rate - far more dangerous than the typical Fiber optic cable transmission line construction workplace, earning a grade F.

Mainstream Fiber Networks: 6.7 TCR = 240% of Fiber optic cable transmission line construction BLS 2.8 · 2y Form 300A (see methodology below)

Mainstream Fiber Networks safety composite

Mainstream Fiber Networks scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 11%), 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).

F

22/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 6.73 per 100 workers

Safer than 12% of industry peers

DART rate
F 5.43 per 100 workers

Safer than 11% 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%).

Mainstream Fiber Networks held a steady TCR band

Mainstream Fiber Networks's TCR held near 0.1 from 6.7 in 2023 to 6.8 in 2024. In 2024, DART was 0.81× this establishment's average TCR (severity share of cases).

2023=6.7 · 2024=6.8

OSHA ITA Form 300A scorecard

Establishment book 237130 · Nashville, IN ABOVE-IND · MID

Grade F · TCR 6.7 · 240% of ind

  • DART 5.4 DART
  • RANK #30/30
  • PHOTO 500
  • BOOK 2y book
  • INJ 11 inj
  • SIZE ~145 FTE

Nearest TCR peer: 500 (0.0 TCR gap)

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

Mainstream Fiber Networks in the TCR neighbourhood

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

TCR

What this shows Mainstream Fiber Networks averages 6.7 TCR (240% of the Fiber optic cable transmission line construction BLS benchmark).

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

Mainstream Fiber Networks TCR series: 2023=6.7 · 2024=6.8 · BLS 2.8

Where Mainstream Fiber Networks falls in its industry

1,605 Fiber optic cable transmission establishments

Safer than 12% of graded establishments in this industry, whose median TCR is 2.0.

More dangerous than peersSafer than peers

Narrower to Indiana alone (the establishments it most directly competes with for workers and contracts): ranked #30 safest of 30 Fiber optic cable transmission employers in Indiana.

Mainstream Fiber Networks (145 employees, TCR 6.7) 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 Mainstream Fiber Networks
Mainstream Fiber Networks (145 employees, TCR 6.7) among 29 same-industry peers, split at the industry median of 74 employees and a TCR of 2.0

Mainstream Fiber Networks has more employees than the Fiber optic cable transmission line cons 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
2024 6.8 5.4 5 0 0
2023 6.7 4.4 6 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237130 · IN · Nashville

1,605 Fiber optic cable transmission line construction employers nationwide with a credible TCR · 12,750 rated employers in Indiana with headcount on file · 7 employers in Nashville, IN · 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 500 6.8 TCR
NAICS-TCR AR 2 6.8 TCR
NAICS-TCR NA-US-CT-Milford-Cascade Boulevard 6.7 TCR
NAICS-TCR 507 Forest Ave., Carnegie, PA 15106 6.7 TCR
STATE-SIZE Consolidated Asset Management Services (Indiana), LLC 145 FTE
STATE-SIZE Essentra HPC Indianapolis 145 FTE
STATE-SIZE Colwell, Inc 145 FTE
STATE-SIZE LCI - 210 145 FTE
CITY-NEAR Big Woods Hard Truth Hills 118 FTE
CITY-NEAR Brown County Health & Living 101 FTE
CITY-NEAR Big Woods Pizza 60 FTE
CITY-NEAR Price Less Foods #449 45 FTE
NAT-TCR Textile Products Incorporated 6.7 TCR
NAT-TCR Ardent Mills Columbus 6.7 TCR
NAT-TCR The Village at waterman lake 6.7 TCR
NAT-TCR 8 - Fargo 6.7 TCR
NAT-SIZE AMEREN MISSOURI - Sioux Energy Ctr Gen and Bud 145 FTE
NAT-SIZE Store 239 145 FTE
NAT-SIZE Donor Alliance 145 FTE
NAT-SIZE La Bodega Meat Inc 145 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.