Plumbing and heating contractors · Colorado

MAi Mechanical Inc

Aurora, CO · ~78 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.6
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

MAi Mechanical Inc runs at 164% of its industry's injury rate - more dangerous than the typical Plumbing and heating contractors workplace, earning a grade D.

MAi Mechanical Inc: 4.6 TCR = 164% of Plumbing and heating contractors BLS 2.8 · 2y Form 300A (see methodology below)

MAi Mechanical Inc safety composite

MAi Mechanical Inc scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 37%), 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

56/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.59 per 100 workers

Safer than 37% of industry peers

DART rate
B 0 per 100 workers

Safer than 80% 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

−2.7

2023→2024

MAi Mechanical Inc injury rate improved

MAi Mechanical Inc's TCR fell 2.7 from 6.0 in 2023 to 3.2 in 2024. Peak filing year was 2023 at 6.0 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2023=6.0 · 2024=3.2

OSHA ITA Form 300A scorecard

Establishment book 238220 · Aurora, CO ABOVE-IND · SMALL

Grade D · TCR 4.6 · 164% of ind

  • DART 0.0 DART
  • RANK #71/156
  • PHOTO Ross & Sons Refriger…
  • BOOK 2y book
  • INJ 8 inj
  • SIZE ~78 FTE

Nearest TCR peer: Ross & Sons Refrigeration & Construction (0.0 TCR gap)

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

MAi Mechanical Inc in the TCR neighbourhood

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

TCR

What this shows MAi Mechanical Inc averages 4.6 TCR (164% of the Plumbing and heating contractors BLS benchmark).

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

MAi Mechanical Inc TCR series: 2023=6 · 2024=3.2 · BLS 2.8

Where MAi Mechanical Inc falls in its industry

5,793 Plumbing and heating contracto establishments

Safer than 37% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Colorado alone (the establishments it most directly competes with for workers and contracts): ranked #71 safest of 156 Plumbing and heating contracto employers in Colorado.

MAi Mechanical Inc (78 employees, TCR 4.6) 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 MAi Mechanical Inc
MAi Mechanical Inc (78 employees, TCR 4.6) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

MAi Mechanical Inc has more employees than the Plumbing and heating 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 3.2 0.0 4 0 0
2023 6.0 4.5 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · CO · Aurora

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 9,007 rated employers in Colorado with headcount on file · 497 employers in Aurora, CO · 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 Ross & Sons Refrigeration & Construction 4.6 TCR
NAICS-TCR MEP Pros, Inc. dba 1-800-Plumber+Air Pacific Northwest 4.6 TCR
NAICS-TCR Eyman Plumbing, Inc 4.6 TCR
NAICS-TCR Element Service Group Mechanical, LLC 4.6 TCR
STATE-SIZE Colorado First Construction dba CFC Construction Inc. 78 FTE
STATE-SIZE RECONSTRUCTION EXPERTS, INC - DENVER 78 FTE
STATE-SIZE JFSNA at Suncor Commerce City 78 FTE
STATE-SIZE EAP Glass 78 FTE
CITY-NEAR Children's Hospital Colorado 6,663 FTE
CITY-NEAR Raytheon_Aurora_CO 2,237 FTE
CITY-NEAR Primoris Renewable Energy 1,695 FTE
CITY-NEAR Amazon.com Services LLC - DEN5 1,601 FTE
NAT-TCR IfA-MKSS 4.6 TCR
NAT-TCR Cactus Varied Industries 4.6 TCR
NAT-TCR Insteel Wire Products TNS 4.6 TCR
NAT-TCR Kemco Systems 4.6 TCR
NAT-SIZE Mountain View Senior Living LLC 78 FTE
NAT-SIZE Allure of Sterling 78 FTE
NAT-SIZE Lyon College 78 FTE
NAT-SIZE Scgre - Greenwood Center 78 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. 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.