Mechanical contractors · Oklahoma

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service

Oklahoma City, OK · ~221 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.5
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service runs at 162% of its industry's injury rate - more dangerous than the typical Mechanical contractors workplace, earning a grade D.

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service: 4.5 TCR = 162% of Mechanical contractors BLS 2.8 · 3y Form 300A (see methodology below)

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service safety composite

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 38%), 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

45/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.53 per 100 workers

Safer than 38% of industry peers

DART rate
D 1.36 per 100 workers

Safer than 48% 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%).

TCR Δ

−3.2

2022→2024

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service injury rate improved

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service's TCR fell 3.2 from 6.8 in 2022 to 3.6 in 2024. Peak filing year was 2022 at 6.8 TCR. In 2024, DART was 0.3× this establishment's average TCR (severity share of cases).

2022=6.8 · 2023=3.1 · 2024=3.6

OSHA ITA Form 300A scorecard

Establishment book 238220 · Oklahoma City, OK ABOVE-IND · MID

Grade D · TCR 4.5 · 162% of ind

  • DART 1.4 DART
  • RANK #26/40
  • PHOTO Cappy Heating and Ai…
  • BOOK 3y book
  • INJ 28 inj
  • SIZE ~221 FTE

Nearest TCR peer: Cappy Heating and Air Conditioning, Inc (0.0 TCR gap)

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

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service in the TCR neighbourhood

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

TCR

What this shows United Mechanical Inc., United Mechanical Service, Donohue Commercial Service averages 4.5 TCR (162% of the Mechanical contractors BLS benchmark).

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

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service TCR series: 2022=6.8 · 2023=3.1 · 2024=3.6 · BLS 2.8

Where United Mechanical Inc., United Mechanical Service, Donohue Commercial Service falls in its industry

5,793 Mechanical contractors establishments

Safer than 38% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Oklahoma alone (the establishments it most directly competes with for workers and contracts): ranked #26 safest of 40 Mechanical contractors employers in Oklahoma.

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service (221 employees, TCR 4.5) 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 United Mechanical Inc., United Mechanical Service, Donohue Commercial Service
United Mechanical Inc., United Mechanical Service, Donohue Commercial Service (221 employees, TCR 4.5) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

United Mechanical Inc., United Mechanical Service, Donohue Commercial Service 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 3.6 1.4 8 0 0
2023 3.1 1.3 7 0 0
2022 6.8 3.2 13 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · OK · Oklahoma City

5,793 Mechanical contractors employers nationwide with a credible TCR · 5,320 rated employers in Oklahoma with headcount on file · 1,293 employers in Oklahoma City, OK · 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 Cappy Heating and Air Conditioning, Inc 4.5 TCR
NAICS-TCR Dallas Division 4.5 TCR
NAICS-TCR CoolSys C&I Orange County Service 4.5 TCR
NAICS-TCR Vision Mechanical LLC 4.5 TCR
STATE-SIZE Legend Energy Services, LLC 221 FTE
STATE-SIZE Bison Energy Services LLC 221 FTE
STATE-SIZE Albertsons Ponca City Distribution Center 221 FTE
STATE-SIZE Shawnee Milling Company 222 FTE
CITY-NEAR North America Fulfillment Centers (FCs) : OKC1 3,710 FTE
CITY-NEAR Amazon.com Services LLC - OKC1 3,462 FTE
CITY-NEAR St. Anthony Hospital 3,417 FTE
CITY-NEAR OK005 3,027 FTE
NAT-TCR Harris Beverages LLC 4.5 TCR
NAT-TCR Symmons Industries 4.5 TCR
NAT-TCR Big R of Liberal, LLC. 4.5 TCR
NAT-TCR Colorado Box Beef - Lakeland 4.5 TCR
NAT-SIZE Anderson County Hospital 221 FTE
NAT-SIZE Syncreon - Temperance 221 FTE
NAT-SIZE Hexpol Compounding LLC - Burton, OH 221 FTE
NAT-SIZE Seegrid 221 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. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.