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Find a contractor in Delaware
Browse contractor records from the public sources we cover in Delaware. Check the credential, scope and current status before hiring. Choose a trade to explore the roster or build a contact list for your territory.
Browse contractor records in Delaware
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Buy Delaware contractor data by territory
Records from our covered Delaware sources, with phone, email and website where available. Review the territory preview for availability. Draw your territory and pay for what you draw.
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StatewideDelaware market snapshot
The contractor market in Delaware
This is our covered-source snapshot for Delaware, refreshed 2026-07-10. Counts describe records, not every contractor or unique company in the state.
Figures use separately generated snapshots: overall roster totals, trade counts and mapped-city counts can differ in scope and collection time and should not be added together or treated as a reconciled census. The displayed source refresh date does not date every aggregate. Population and households are sums of the covered ZIP estimates. The income indicator is a population-weighted average of ZIP-level household-income medians, not the state's household median. Census context can refer to a different period from the roster. Housing-unit authorizations refer to the displayed permit year; they are not completed projects. See the ACS estimate guidance and Building Permits Survey for the underlying statistical definitions.
Cities with the most mapped records in our Delaware snapshot
| Rank | City | Roster records |
|---|---|---|
| 1 | Wilmington | 1,468 |
| 2 | Newark | 917 |
| 3 | Dover | 573 |
| 4 | Millsboro | 492 |
| 5 | New Castle | 472 |
| 6 | Georgetown | 455 |
| 7 | Lewes | 396 |
| 8 | Middletown | 373 |
| 9 | Seaford | 362 |
| 10 | Bear | 315 |
Ranked by mapped source records. Missing coordinates and source coverage can affect these counts; they are not a census of each city.
General Contractors have the most records among our covered Delaware categories, with 12,893 records. Other covered trades are shown with their own counts in the map above.
Common questions about Delaware contractors
What does the Delaware roster cover?
10,079 records in our snapshot, refreshed 2026-07-10. Coverage follows the sources and trades listed here; it is not a census of every contractor or a count of unique companies. A company may hold multiple credentials.
How do I check a contractor in Delaware before hiring?
Delaware separates the Division of Revenue business license, Department of Labor contractor registration and professional trade credentials. Construction businesses must address the registration requirements before work begins. Compare the official record with the business on the contract, its current status and the proposed work. Check local permits, insurance and references separately.
Which trades are available in this roster?
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. These are our covered categories, not a statement that each has a statewide license. Availability depends on territory and filters.
Does inclusion prove a contractor is active today?
No. The snapshot reflects source records at collection, not a live status check. Recheck the issuing authority before hiring. Missing records can reflect our coverage, source timing or search limits; they do not by themselves establish that a business is unlicensed.
How do I choose a list and delivery time?
Select a territory and review its available records and price before checkout. Contact fields vary by record. Larger website orders are typically delivered within one business day. Custom research scope and delivery timing are agreed before purchase.
Delaware market research
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Understanding Delaware credentials
Delaware separates the Division of Revenue business license, Department of Labor contractor registration and professional trade credentials. Construction businesses must address the registration requirements before work begins.
A revenue license is not an electrical or other professional license. Check the relevant DELPROS credential separately and confirm local requirements for the project.
Example: For electrical construction, verify the professional electrical license as well as the business and contractor-registration requirements.
Keep the three Delaware checks distinct
- Identify the business’s Division of Revenue license and Department of Labor contractor registration. These answer different administrative questions.
- For electrical and other regulated trades, search the relevant DELPROS professional credential separately. A revenue license is not an electrical license.
- Ask the project jurisdiction about permits and local requirements. Keep the exact business name and credential numbers together so similarly named entities are not combined by mistake.
Example: an electrical contractor sends a revenue license. Ask for the professional electrical credential and the applicable contractor-registration information instead of treating the revenue document as trade authorization.
Scope guidance reviewed 2026-09-23. Recheck the official record before hiring.
What you get
- • License or registration details where available
- • Business name and credential holder where supplied
- • Phone, email and website where available
- • Google rating + review count where available
- • Mailing address and ZIP where supplied
- • Issue and expiration dates where supplied
- • CSV delivery; larger website orders typically within one business day