Mechanical contractors · Tennessee

Interstate Mechanical Contractors, Inc.

Knoxville, TN · ~132 workers · 9 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Interstate Mechanical Contractors, Inc. runs at 184% of its industry's injury rate - more dangerous than the typical Mechanical contractors workplace, earning a grade D.

Interstate Mechanical Contractors, Inc.: 5.2 TCR = 184% of Mechanical contractors BLS 2.8 · 9y Form 300A (see methodology below)

Interstate Mechanical Contractors, Inc. safety composite

Interstate Mechanical Contractors, Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 14%), 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

31/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.16 per 100 workers

Safer than 33% of industry peers

DART rate
F 5.55 per 100 workers

Safer than 14% 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%).

Interstate Mechanical Contractors, Inc. held a steady TCR band

Interstate Mechanical Contractors, Inc.'s TCR held near 0.3 from 5.2 in 2016 to 5.5 in 2024. Peak filing year was 2018 at 6.8 TCR. In 2024, DART was 1.08× this establishment's average TCR (severity share of cases).

2016=5.2 · 2017=5.8 · 2018=6.8 · 2019=3.9 · 2020=5.0 · 2021=4.0 · 2022=6.5 · 2023=3.8 · 2024=5.5

OSHA ITA Form 300A scorecard

Establishment book 238220 · Knoxville, TN ABOVE-IND · MID

Grade D · TCR 5.2 · 184% of ind

  • DART 5.5 DART
  • RANK #89/117
  • PHOTO Christianson San Ant…
  • BOOK 9y book
  • INJ 65 inj
  • SIZE ~132 FTE

Nearest TCR peer: Christianson San Antonio (0.0 TCR gap)

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

Interstate Mechanical Contractors, Inc. in the TCR neighbourhood

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

TCR

What this shows Interstate Mechanical Contractors, Inc. averages 5.2 TCR (184% of the Mechanical contractors BLS benchmark).

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

Interstate Mechanical Contractors, Inc. TCR series: 2016=5.2 · 2017=5.8 · 2018=6.8 · 2019=3.9 · 2020=5 · 2021=4 · 2022=6.5 · 2023=3.8 · 2024=5.5 · BLS 2.8

Where Interstate Mechanical Contractors, Inc. falls in its industry

5,793 Mechanical contractors establishments

Safer than 33% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Tennessee alone (the establishments it most directly competes with for workers and contracts): ranked #89 safest of 117 Mechanical contractors employers in Tennessee.

Interstate Mechanical Contractors, Inc. (132 employees, TCR 5.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 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 050100150200250 05101520 Average employees Total Case Rate Interstate Mechanical Contractors, Inc.
Interstate Mechanical Contractors, Inc. (132 employees, TCR 5.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Interstate Mechanical Contractors, Inc. has more employees than the Mechanical contractors median and a higher injury rate than the industry's median TCR of 3.3. 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 5.5 5.5 9 0 0
2023 3.8 3.0 5 0 0
2022 6.5 2.9 9 0 0
2021 4.0 0.8 5 0 0
2020 5.0 3.6 7 0 0
2019 3.9 1.6 5 0 0
2018 6.8 2.0 10 0 0
2017 5.8 1.4 8 0 0
2016 5.2 2.2 7 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · TN · Knoxville

5,793 Mechanical contractors employers nationwide with a credible TCR · 10,743 rated employers in Tennessee with headcount on file · 747 employers in Knoxville, TN · 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 Christianson San Antonio 5.2 TCR
NAICS-TCR J.O. Mory Inc. 5.2 TCR
NAICS-TCR 6641_15347 5.2 TCR
NAICS-TCR Gainesville Office 5.2 TCR
STATE-SIZE Public Utility 132 FTE
STATE-SIZE Consolidated Utility District of Rutherford County 132 FTE
STATE-SIZE Henkels & McCoy, Tennessee - Chattanooga 132 FTE
STATE-SIZE HVAC, Inc. 132 FTE
CITY-NEAR Cellular Sales Services Group LLC 6,387 FTE
CITY-NEAR University Health System, Inc 5,215 FTE
CITY-NEAR Functional Pathways of TN LLC 2,258 FTE
CITY-NEAR HES Facilities Services K-12 2,157 FTE
NAT-TCR Long Term Acute Care Hospital 5.2 TCR
NAT-TCR Freeborn Mower Electric Cooperative 5.2 TCR
NAT-TCR Superior Essex Communications LLC 5.2 TCR
NAT-TCR Acosta Tractors, Inc. 5.2 TCR
NAT-SIZE The Lodge Nursing & Rehab Center 132 FTE
NAT-SIZE Bemidji Middle School 132 FTE
NAT-SIZE HiRel Dover 132 FTE
NAT-SIZE Dautel Circle 132 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, 2022, 2021, 2020, 2019, 2018, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.