Internet service providers, using client-supplied telecommunications (e.g., dial-up ISPs) · Alabama

ADTRAN Holdings

Huntsville, AL · ~1,138 workers · 4 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
1.7
Avg TCR
0.7
Industry avg
0
Fatalities
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The verdict

ADTRAN Holdings runs at 241% of its industry's injury rate - far more dangerous than the typical Internet service providers, using client-supplied telecommunications (e.g., dial-up ISPs) workplace, earning a grade F.

ADTRAN Holdings: 1.7 TCR = 241% of Internet service providers, using client-supplied telecommunications (e.g., dial-up ISPs) BLS 0.7 · 4y Form 300A (see methodology below)

ADTRAN Holdings safety composite

ADTRAN Holdings scores strongest on total case rate (tcr) (safer than 57% of same-industry peers) and weakest on dart rate (safer than 45%), 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

51/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.69 per 100 workers

Safer than 57% of industry peers

DART rate
D 0.4 per 100 workers

Safer than 45% 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

ADTRAN Holdings: 0.0 → 0.4 TCR

Peak year 2017 @ 5.8 TCR · DART/TCR 0.24× in 2024

ADTRAN Holdings's TCR rose 0.4 from 0.0 in 2016 to 0.4 in 2024. Peak filing year was 2017 at 5.8 TCR. In 2024, DART was 0.24× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 517919 · Huntsville, AL ABOVE-IND · LARGE

Grade F · TCR 1.7 · 241% of ind

  • DART 0.4 DART
  • RANK P57
  • PHOTO Ericsson - Alpharett…
  • BOOK 4y book
  • INJ 9 inj
  • SIZE ~1,138 FTE

Nearest TCR peer: Ericsson - Alpharetta Office (0.1 TCR gap)

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

ADTRAN Holdings in the TCR neighbourhood

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

TCR

What this shows ADTRAN Holdings averages 1.7 TCR (241% of the Internet service providers, using client-supplied telecommunications (e.g., dial-up ISPs) BLS benchmark).

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

ADTRAN Holdings TCR series: 2016=0 · 2017=5.8 · 2023=0.5 · 2024=0.4 · BLS 0.7

Where ADTRAN Holdings falls in its industry

28 Internet service providers, us establishments

Safer than 57% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers
ADTRAN Holdings (1,138 employees, TCR 1.7) among 19 same-industry peers, split at the industry median of 65 employees and a TCR of 2.5 2×2 strategic matrix plotting 20 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 01,0002,0003,0004,000 0246810 Average employees Total Case Rate ADTRAN Holdings
ADTRAN Holdings (1,138 employees, TCR 1.7) among 19 same-industry peers, split at the industry median of 65 employees and a TCR of 2.5

ADTRAN Holdings has more employees than the Internet service providers, using client median and a lower injury rate than the industry's median TCR of 2.5. 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 0.4 0.4 3 0 0
2023 0.5 0.5 5 0 0
2017 5.8 5.8 1 0 0
2016 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

517919 · AL · Huntsville

28 Internet service providers, using client-supplied telecommunications (e.g., dial-up ISPs) employers nationwide with a credible TCR · 7,418 rated employers in Alabama with headcount on file · 454 employers in Huntsville, AL · 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 Ericsson - Alpharetta Office 1.8 TCR
NAICS-TCR Conterra El Paso 1.5 TCR
NAICS-TCR LA Carlyss 1.3 TCR
NAICS-TCR Smart Facility Office/Manu - Ericsson, Inc 1.2 TCR
STATE-SIZE Dothan processing plant 1,140 FTE
STATE-SIZE Plant 65 1,132 FTE
STATE-SIZE Hyundai Mobis Alabama 1,128 FTE
STATE-SIZE Lockheed Martin Corporation US AL Huntsville Bradford 4800 (1350) 1,148 FTE
CITY-NEAR AL004 2,929 FTE
CITY-NEAR Dynetics A Leidos Company 2,463 FTE
CITY-NEAR Leidos - Dynetics 2,051 FTE
CITY-NEAR Toyota Motor Mfg of Alabama 1,874 FTE
NAT-TCR USALCO Baltimore 1.7 TCR
NAT-TCR AeroSpec Inc 1.7 TCR
NAT-TCR Crossroads Dairy 1.7 TCR
NAT-TCR jaf converters 1.7 TCR
NAT-SIZE Primary Beef - Wyalusing PA 1,138 FTE
NAT-SIZE St. Joseph's Hospital 1,138 FTE
NAT-SIZE Hartnell College Main Campus 1,139 FTE
NAT-SIZE Hartnell College East Campus 1,139 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, 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.