Licensed Contractors in Delaware
Delaware licenses electricians, plumbers, and HVACR contractors through the Division of Professional Regulation, and every other contractor working in the state holds a Division of Revenue contractor business license. Both rosters are published as state open data, refreshed daily. Phone and email aren't in the state files, so we fill them from public sources; business-license records carry the full street address. Out-of-state firms licensed in Delaware are excluded from these results by default so you see in-state contractors first.
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25 miDelaware market snapshot
The contractor market in Delaware
Delaware has 10,079 active licensed contractors, each verified against the Delaware Division of Professional Regulation (DPR) + Division of Revenue registry.
Cities with the most licensed contractors in Delaware
| Rank | City | Licensed contractors |
|---|---|---|
| 1 | Wilmington | 1,483 |
| 2 | Newark | 909 |
| 3 | Dover | 562 |
| 4 | Millsboro | 484 |
| 5 | New Castle | 465 |
| 6 | Georgetown | 450 |
| 7 | Lewes | 382 |
| 8 | Middletown | 366 |
| 9 | Seaford | 357 |
| 10 | Bear | 308 |
Ranked by mapped active licenses. Cities only. The full roster covers every Delaware ZIP.
General Contractors are the largest licensed trade in Delaware, with 12,610 active licenses. Every other covered trade is shown with its own count in the map above.
Common questions about Delaware contractors
How many licensed general contractors are in Delaware?
12,610 active licensed general contractors are registered in Delaware, verified against the Delaware Division of Professional Regulation (DPR) + Division of Revenue. ContractorRoster delivers every one with phone, email, and website.
How do I verify a Delaware contractor license?
Check any license number directly with the Delaware Division of Professional Regulation (DPR) + Division of Revenue at https://delpros.delaware.gov/OH_VerifyLicense. Every record we deliver carries its active license number so you can confirm it at the source.
What does a Delaware contractor list cost, and how current is the data?
Lists start at $19, delivered as a CSV within 3 minutes. The Delaware data was last refreshed 2026-07-10, sourced direct from the Delaware Division of Professional Regulation (DPR) + Division of Revenue and enriched with contact info for most records.
Which contractor trades does Delaware cover?
Delaware covers 16 trades: electricians, plumbers, hvac contractors, general contractors, roofing contractors, solar contractors, landscape contractors, pool contractors, carpenters, concrete contractors, masons, drywall contractors, tile contractors, excavating contractors, painters, flooring contractors. Search any one by city or ZIP.
Which Delaware cities have the most licensed contractors?
Wilmington, Newark, Dover lead Delaware by licensed-contractor count. ContractorRoster covers every city and ZIP in the state, not just the major metros.
Are the Delaware contractors in this list currently active?
Yes, every record is an active license; expired and lapsed licenses are filtered out. The Delaware data was last refreshed 2026-07-10 from the Delaware Division of Professional Regulation (DPR) + Division of Revenue.
Delaware market research
Data source
Direct from the Delaware Division of Professional Regulation (DPR) + Division of Revenue
Every record we deliver in Delawarecomes from the state's official license registry, refreshed regularly. We enrich each row with phone, email, website, and Google ratings sourced from public business listings. Contact info present for most records.
Visit Delaware Division of Professional Regulation (DPR) + Division of Revenue →What you get
- • Active license number + classification
- • Business name + license holder name
- • Phone, email, website (most records)
- • Google rating + review count where available
- • Full mailing address + ZIP
- • Issue date + expiration date
- • CSV delivered to your inbox in under 3 minutes