Roofing contractors · Maryland

Interstate Corporation

Gaithersburg, MD · ~40 workers · 7 years of OSHA Injury Tracking Application data.

C
Average Safety Record
0.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Interstate Corporation runs at 0% of its industry's injury rate - about level with the typical Roofing contractors workplace, earning a grade C.

Interstate Corporation: 0.0 TCR = 0% of Roofing contractors BLS 2.8 · 7y Form 300A (see methodology below)

Interstate Corporation safety composite

Interstate Corporation scores strongest on total case rate (tcr) (safer than 100% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

B

80/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0 per 100 workers

Safer than 100% of industry peers

DART rate
B 0 per 100 workers

Safer than 79% 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 Corporation held a steady TCR band

Interstate Corporation's TCR held near 0.0 from 0.0 in 2017 to 0.0 in 2024. Peak filing year was 2017 at 0.0 TCR.

2017=0.0 · 2019=0.0 · 2020=0.0 · 2021=0.0 · 2022=0.0 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 238160 · Gaithersburg, MD AT/BELOW-IND · SMALL

Grade C · TCR 0.0 · 0% of ind

  • DART 0.0 DART
  • RANK #0/24
  • PHOTO ERCI
  • BOOK 7y book
  • INJ 0 inj
  • SIZE ~40 FTE

Nearest TCR peer: ERCI (0.1 TCR gap)

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

Interstate Corporation in the TCR neighbourhood

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

TCR

What this shows Interstate Corporation averages 0.0 TCR (0% of the Roofing contractors BLS benchmark).

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

Interstate Corporation TCR series: 2017=0 · 2019=0 · 2020=0 · 2021=0 · 2022=0 · 2023=0 · 2024=0 · BLS 2.8

Where Interstate Corporation falls in its industry

1,723 Roofing contractors establishments

Safer than 100% of graded establishments in this industry, whose median TCR is 3.7.

More dangerous than peersSafer than peers

Narrower to Maryland alone (the establishments it most directly competes with for workers and contracts): ranked #0 safest of 24 Roofing contractors employers in Maryland.

Interstate Corporation (40 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 44 employees and a TCR of 3.7 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 050100150 0102030 Average employees Total Case Rate Interstate Corporation
Interstate Corporation (40 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 44 employees and a TCR of 3.7

Interstate Corporation has fewer employees than the Roofing contractors median and a lower injury rate than the industry's median TCR of 3.7. 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 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 0.0 0.0 0 0 0
2017 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238160 · MD · Gaithersburg

1,723 Roofing contractors employers nationwide with a credible TCR · 7,213 rated employers in Maryland with headcount on file · 202 employers in Gaithersburg, 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 ERCI 0.1 TCR
NAICS-TCR Guy Roofing 0.1 TCR
NAICS-TCR T & K Roofing & Sheet Metal Company Inc. 0.2 TCR
NAICS-TCR Pickens Contracting, Inc. 0.2 TCR
STATE-SIZE Chalk Point Generating Station 40 FTE
STATE-SIZE Revolution Solar 40 FTE
STATE-SIZE CFM/Severn Associates JV 40 FTE
STATE-SIZE Hamilton Pacific Chamberlain, LLC 40 FTE
CITY-NEAR AstraZeneca Gaithersburg Campus 4,117 FTE
CITY-NEAR MDGAI - GAITHERSBURG HUB 794 FTE
CITY-NEAR Adventist Healthcare Support Center to SGMC 764 FTE
CITY-NEAR MDGAI - GAITHERSBURG-PACKAGE CENTER 759 FTE
NAT-TCR Cedar Bay Entertainment LLC 0.0 TCR
NAT-TCR Cardinal Health 7000 and 7200 0.0 TCR
NAT-TCR One Federal Street 0.0 TCR
NAT-TCR City of Fremont - Community Support Includes Recreation and Human Services 0.0 TCR
NAT-SIZE Dallas Irving Blvd 40 FTE
NAT-SIZE MCX East- Warsaw, NC 40 FTE
NAT-SIZE Greenfield 40 FTE
NAT-SIZE STS Operating - Sterling Heights 40 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, 2017. 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.