Acidity (i.e., pH) measuring equipment, laboratory analysis-type, manufacturing · Virginia

Thorlabs

Sterling, VA · ~79 workers · 8 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Thorlabs runs at 27% of its industry's injury rate - far safer than the typical Acidity (i.e., pH) measuring equipment, laboratory analysis-type, manufacturing workplace, earning a grade A.

Thorlabs: 0.9 TCR = 27% of Acidity (i.e., pH) measuring equipment, laboratory analysis-type, manufacturing BLS 3.3 · 8y Form 300A (see methodology below)

Thorlabs safety composite

Thorlabs scores strongest on total case rate (tcr) (safer than 61% of same-industry peers) and weakest on dart rate (safer than 27%), 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

46/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 0.89 per 100 workers

Safer than 61% of industry peers

DART rate
F 1 per 100 workers

Safer than 27% 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

Thorlabs: 0.0 → 1.0 TCR

Peak year 2019 @ 2.4 TCR · DART/TCR 1.12× in 2023

Thorlabs's TCR rose 1.0 from 0.0 in 2016 to 1.0 in 2023. Peak filing year was 2019 at 2.4 TCR. In 2023, DART was 1.12× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 334516 · Sterling, VA AT/BELOW-IND · SMALL

Grade A · TCR 0.9 · 27% of ind

  • DART 1.0 DART
  • RANK P61
  • PHOTO Thermo Fisher Scient…
  • BOOK 8y book
  • INJ 6 inj
  • SIZE ~79 FTE

Nearest TCR peer: Thermo Fisher Scientific - Chelmsford (0.0 TCR gap)

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

Thorlabs in the TCR neighbourhood

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

TCR

What this shows Thorlabs averages 0.9 TCR (27% of the Acidity (i.e., pH) measuring equipment, laboratory analysis-type, manufacturing BLS benchmark).

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

Thorlabs TCR series: 2016=0 · 2017=1.1 · 2018=1.3 · 2019=2.4 · 2020=0 · 2021=0 · 2022=1.3 · 2023=1 · BLS 3.3

Where Thorlabs falls in its industry

213 Acidity (i.e., pH) measuring e establishments

Safer than 61% of graded establishments in this industry, whose median TCR is 1.2.

More dangerous than peersSafer than peers
Thorlabs (79 employees, TCR 0.9) among 29 same-industry peers, split at the industry median of 133 employees and a TCR of 1.2 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 05101520 Average employees Total Case Rate Thorlabs
Thorlabs (79 employees, TCR 0.9) among 29 same-industry peers, split at the industry median of 133 employees and a TCR of 1.2

Thorlabs has fewer employees than the Acidity (i.e., pH) measuring equipment, median and a lower injury rate than the industry's median TCR of 1.2. 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
2023 1.0 1.0 1 0 0
2022 1.3 1.3 1 0 0
2021 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 2.4 1.2 2 0 0
2018 1.3 0.0 1 0 0
2017 1.1 0.0 1 0 0
2016 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

334516 · VA · Sterling

213 Acidity (i.e., pH) measuring equipment, laboratory analysis-type, manufacturing employers nationwide with a credible TCR · 12,673 rated employers in Virginia with headcount on file · 222 employers in Sterling, VA · 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 Thermo Fisher Scientific - Chelmsford 0.9 TCR
NAICS-TCR CEM Corporation 0.9 TCR
NAICS-TCR Instrumentation Laboratory 0.9 TCR
NAICS-TCR Illumina-Hayward 0.9 TCR
STATE-SIZE Spruance 79 FTE
STATE-SIZE Dumfries 79 FTE
STATE-SIZE ADI Construction of Virginia LLC 79 FTE
STATE-SIZE FGG Isaac 79 FTE
CITY-NEAR AMZL : DDC4 868 FTE
CITY-NEAR Wegmans Dulles 007 478 FTE
CITY-NEAR Prospect Waterproofing Company 465 FTE
CITY-NEAR 2038 421 FTE
NAT-TCR Brownmiller Leasing & Transportation Inc. 0.9 TCR
NAT-TCR Optima Chemical Group, LLC 0.9 TCR
NAT-TCR Applied Construction Solutions, INC 0.9 TCR
NAT-TCR Crane Service 0.9 TCR
NAT-SIZE Maryland Wellness, LLC 79 FTE
NAT-SIZE Corporate Headquarters 79 FTE
NAT-SIZE J.P. Phillips, Inc. 79 FTE
NAT-SIZE Thompson & Harvey Bay Area 79 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: 2023, 2022, 2021, 2020, 2019, 2018, 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.