Acoustical engineering consulting services · Connecticut

ThayerMahan, Inc.

Groton, CT · ~42 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
0.9
Avg TCR
0.5
Industry avg
0
Fatalities
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The verdict

ThayerMahan, Inc. runs at 182% of its industry's injury rate - more dangerous than the typical Acoustical engineering consulting services workplace, earning a grade D.

ThayerMahan, Inc.: 0.9 TCR = 182% of Acoustical engineering consulting services BLS 0.5 · 3y Form 300A (see methodology below)

ThayerMahan, Inc. safety composite

ThayerMahan, Inc. scores strongest on dart rate (safer than 70% of same-industry peers) and weakest on total case rate (tcr) (safer than 50%), 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

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 0.91 per 100 workers

Safer than 50% of industry peers

DART rate
C 0 per 100 workers

Safer than 70% 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%).

Rising injury rate

ThayerMahan, Inc.: 0.0 → 1.2 TCR

Peak year 2021 @ 1.5 TCR · DART/TCR 0× in 2022

ThayerMahan, Inc.'s TCR rose 1.2 from 0.0 in 2020 to 1.2 in 2022. Peak filing year was 2021 at 1.5 TCR. In 2022, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 541330 · Groton, CT ABOVE-IND · SMALL

Grade D · TCR 0.9 · 182% of ind

  • DART 0.0 DART
  • RANK #4/8
  • PHOTO Vineyard Wind 1, LLC
  • BOOK 3y book
  • INJ 2 inj
  • SIZE ~42 FTE

Nearest TCR peer: Vineyard Wind 1, LLC (0.0 TCR gap)

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

ThayerMahan, Inc. in the TCR neighbourhood

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

TCR

What this shows ThayerMahan, Inc. averages 0.9 TCR (182% of the Acoustical engineering consulting services BLS benchmark).

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

ThayerMahan, Inc. TCR series: 2020=0 · 2021=1.5 · 2022=1.2 · BLS 0.5

Where ThayerMahan, Inc. falls in its industry

690 Acoustical engineering consult establishments

Safer than 50% of graded establishments in this industry, whose median TCR is 0.9.

More dangerous than peersSafer than peers

Narrower to Connecticut alone (the establishments it most directly competes with for workers and contracts): ranked #4 safest of 8 Acoustical engineering consult employers in Connecticut.

ThayerMahan, Inc. (42 employees, TCR 0.9) among 29 same-industry peers, split at the industry median of 112 employees and a TCR of 0.9 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 01,0002,0003,0004,000 051015 Average employees Total Case Rate ThayerMahan, Inc.
ThayerMahan, Inc. (42 employees, TCR 0.9) among 29 same-industry peers, split at the industry median of 112 employees and a TCR of 0.9

ThayerMahan, Inc. has fewer employees than the Acoustical engineering consulting servic median and a lower injury rate than the industry's median TCR of 0.9. 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 1.2 0.0 1 0 0
2021 1.5 0.0 1 0 0
2020 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

541330 · CT · Groton

690 Acoustical engineering consulting services employers nationwide with a credible TCR · 7,008 rated employers in Connecticut with headcount on file · 67 employers in Groton, CT · 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 Vineyard Wind 1, LLC 0.9 TCR
NAICS-TCR Schust Development, Inc 0.9 TCR
NAICS-TCR KTA-Tator, Inc 0.9 TCR
NAICS-TCR Janssen & Spaans Engineering 0.9 TCR
STATE-SIZE Kronenberger & Sons Restoration, LLC 42 FTE
STATE-SIZE VMS Construction Company 42 FTE
STATE-SIZE ROTHA Contracting Company, Inc. 42 FTE
STATE-SIZE Public Works 42 FTE
CITY-NEAR Electric Boat, Groton, CT. 15,116 FTE
CITY-NEAR General Dynamics Electric Boat 12,075 FTE
CITY-NEAR Pfizer Inc 3,201 FTE
CITY-NEAR University of Connecticut- Avery Point Campus 314 FTE
NAT-TCR Brad Cole Construction Co. Inc. 0.9 TCR
NAT-TCR Nolato Jabar LLC 0.9 TCR
NAT-TCR The People Concern - Village 0.9 TCR
NAT-TCR Miruu - Romulus Brokerage Facility 0.9 TCR
NAT-SIZE Carolina Gardens at Conway 42 FTE
NAT-SIZE 248330-Wakefield Po 42 FTE
NAT-SIZE BMS CAT of Georgia, LLC 42 FTE
NAT-SIZE 333871-Jcy-Bergen North Sta 42 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, 2021, 2020. 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.