DIAMOND MATERIALS LLC
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Power Units
139
Drivers
117
Trailers
27
Annual Miles
Locked
Entity Type
CORPORATION
MCS-150 Date
Jul 2, 2025
Out of Service
No
About DIAMOND MATERIALS LLC
Diamond Materials is a heavy highway and site development company based in Delaware. Their services include asphalt production, soil cement stabilization, utility construction, marine services, on-site crushing and screening, cold in-place recycling, concrete curb and sidewalk installation, demolition, clearing and grubbing, milling, and site development. They serve projects in Delaware, New Jersey, Pennsylvania, and Maryland with a commitment to quality and excellence.
Key Features
Risk Signals — DIAMOND MATERIALS LLC
Full risk analysis — historical patterns, fraud connections, financial signals — runs when you… unlock for full analysis
Authority for sale
No active listings detected…
Equipment for sale
No fleet VINs found on marketplaces…
Financial risk
Financial risk indicators detected…
Fraud signals
Fraud indicators detected…
Historical patterns
Pattern analysis runs when you unlock the report…
Recent activity
No adverse news in 90 days…
2 risk categories flagged — see the evidence before you book
Get the exact risk score, full analysis, and the specific evidence + sources behind every signal.
Related Companies1 found
Who this carrier is linked to and how — shared officers, common addresses, and entities under the same ownership.
Service RegionsActive in 5 states
Full state-by-state operating volumes, inspection locations, and lane coverage analysis.
CSA Safety Scores5 BASICs
5 BASICs measured
Percentile rankings pending FMCSA publication — raw measures + violations available in the report.
Full BASIC percentiles, measure scores, BASIC + roadside alerts, and Acute Carrier flags from the latest FMCSA SMS snapshot.
Inspection History18 in 90 days
Most recent
Jun 11, 2026 · MD
Clean rate (90d)
63%
Every inspection with date, location, level, violations found, and out-of-service results.
Inspection Summary
Recent Inspections (90 Days)
18
Vehicle OOS Rate
5.6%
1 of 18
National avg ~21%
Driver OOS Rate
0%
0 of 18
National avg ~5%
OOS Inspections
1
Driver + Vehicle OOS
Crash Summary
Total Crashes
45
All time
Fatalities
0
Injuries
22
Tow-Away
42
Operating Authority
Common Authority
Holds Active Authority(44.1 years)
Contract Authority
No Authority
Broker Authority
No Authority
Insurance & Coverage
BIPD, cargo, and excess liability coverage amounts, policy history, and insurer names — included in the vetting report.
Contact Information
Physical Address
WILMINGTON, DE 19801
Cargo & Operations
Cargo Carried
Violations by Category74 total
Most common category
General Safety · 43% of violations
across 8 categories
Full violation breakdown by category, out-of-service rates, and historical trends over time.
Fleet Analytics107 trucks
Top manufacturers
Sample units
Full manufacturer, model, and model-year breakdown plus the VIN-level fleet roster.
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