Air system balancing and testing · Maryland

Belair Engineering

Upper Marlboro, MD · ~44 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
3.8
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Belair Engineering runs at 136% of its industry's injury rate - more dangerous than the typical Air system balancing and testing workplace, earning a grade D.

Belair Engineering: 3.8 TCR = 136% of Air system balancing and testing BLS 2.8 · 3y Form 300A (see methodology below)

Belair Engineering safety composite

Belair Engineering scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 35%), 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

43/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 3.8 per 100 workers

Safer than 45% of industry peers

DART rate
D 2.44 per 100 workers

Safer than 35% 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

Belair Engineering: 2.1 → 4.9 TCR

Peak year 2024 @ 4.9 TCR · DART/TCR 0.64× in 2024

Belair Engineering's TCR rose 2.8 from 2.1 in 2022 to 4.9 in 2024. In 2024, DART was 0.64× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Upper Marlboro, MD ABOVE-IND · SMALL

Grade D · TCR 3.8 · 136% of ind

  • DART 2.4 DART
  • RANK #76/121
  • PHOTO Proctor Mechanical
  • BOOK 3y book
  • INJ 5 inj
  • SIZE ~44 FTE

Nearest TCR peer: Proctor Mechanical (0.0 TCR gap)

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

Belair Engineering in the TCR neighbourhood

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

TCR

What this shows Belair Engineering averages 3.8 TCR (136% of the Air system balancing and testing BLS benchmark).

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

Belair Engineering TCR series: 2022=2.1 · 2023=4.5 · 2024=4.9 · BLS 2.8

Where Belair Engineering falls in its industry

5,793 Air system balancing and testi establishments

Safer than 45% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Maryland alone (the establishments it most directly competes with for workers and contracts): ranked #76 safest of 121 Air system balancing and testi employers in Maryland.

Belair Engineering (44 employees, TCR 3.8) 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 Belair Engineering
Belair Engineering (44 employees, TCR 3.8) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Belair Engineering has fewer employees than the Air system balancing and testing 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 4.9 2.4 2 0 0
2023 4.5 0.0 2 0 0
2022 2.1 0.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MD · Upper Marlboro

5,793 Air system balancing and testing employers nationwide with a credible TCR · 7,213 rated employers in Maryland with headcount on file · 98 employers in Upper Marlboro, MD · 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 Proctor Mechanical 3.8 TCR
NAICS-TCR Springfield Engineering Co. 3.8 TCR
NAICS-TCR Louis L. Buttermark & Sons, Inc. 3.8 TCR
NAICS-TCR Microsoft Washington Village 3.8 TCR
STATE-SIZE MS - Annapolis Junction, MD - 1ANMD 44 FTE
STATE-SIZE D.A. Drenner Concrete, Inc. 44 FTE
STATE-SIZE The Crown Electric Co. 44 FTE
STATE-SIZE Horizon Services - Level 44 FTE
CITY-NEAR Washington DC 1,045 FTE
CITY-NEAR 3888 - East Coast Return Center 447 FTE
CITY-NEAR 3881 - Upper Marlboro FDC 431 FTE
CITY-NEAR Thos. Somerville Co. 368 FTE
NAT-TCR AmeriGas - Orlando FL 3.8 TCR
NAT-TCR Camden Clark Memorial Hospital 3.8 TCR
NAT-TCR IDSI Products of Georgia Inc 3.8 TCR
NAT-TCR NatureBest Pre-Cut & Produce NB2 3.8 TCR
NAT-SIZE Blue Flame Crew, LLC 44 FTE
NAT-SIZE Vadnais Heights South Fire Department 44 FTE
NAT-SIZE American Computer Development, Inc - North Carolina 44 FTE
NAT-SIZE Kentek Corporation 44 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.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.