Company snapshot
- Legal name
- Diamond Materials LLC
- USDOT number
- 45597
- MC docket
- MC76472
- Physical address
- 924 S Heald St, Wilmington, DE, 19801
- Phone
- (302) 658-6524
- Power units
- 139
- Drivers
- 117
- Operation
- Interstate
- Operating radius
- Interstate <100 mi
- Cargo
- Logs, Poles, Beams, Lumber, Building Materials, Machinery, Large Objects, Liquids/Gases, Garbage, Refuse, Trash, Chemicals
- Last MCS-150 filing
- Jul 2, 2025
Operating authority
- Common authority
- Active
- Contract authority
- Not held
- Broker authority
- Not held
- Authority granted
- Jun 1, 1974
- MCSIP step
- 0
Insurance on file
- Insurer (writing paper)
- Arch Insurance Company
- Filing form
- BMC-91X
- Coverage amount
- $1,000,000
- BI/PD on file
- $1,000,000
- Estimated renewal window
- Q1 2013
Safety record
- FMCSA safety rating
- Conditional
- Roadside inspections (24 mo)
- 128
- Out-of-service inspections
- 12
- Inspections with violations
- 50
- Crashes (24 mo)
- 9
- BASICs in alert
- 0
Source: FMCSA census, Licensing & Insurance (L&I) and SMS publications, mirrored and refreshed daily. Record last synced Jul 30, 2026. Native Base is not affiliated with FMCSA; always confirm against the live federal record before binding.
More insured carriers in Delaware
Nearby carriers with active filings
Work this carrier — and the 4.4M others
This page is the public record.
Market Tracker is the rest.
The exact renewal X-date, a loss-risk tier, an ISS estimate, verified contacts, the full filing history and every carrier like this one in your state — filtered, exported and watched for change, from $69/user/month.