# List of Delaware companies

Delaware is a state in the Northeastern United States. Delaware's economy shifted to a manufacturing base in the late 19th century, led by the transformation of the DuPont Company. Modern growth in the financial workforce has overtaken the manufacturing sector in the state's economy. The Delaware General Corporation Law provides a flexible and stable framework for national incorporation. While they are seldom headquartered in the state, the management-friendly and mature legal system attracts many corporations; over 66% of the Fortune 500 are incorporated in Delaware.

## Largest firms

This list shows firms in the Fortune 500, which ranks firms by total revenues reported before January 31, 2018. Only the top five firms (if available) are included as a sample.
| Rank | Name | Revenues (USD $M) | Employees | Notes |
| 451 | Chemours | 6,183 | 7,000 | Wilmington-based commodity chemical manufacturer, spun off from DuPont in 2015. The firm produces Titanium dioxide, Fluoropolymers, and other reactive chemicals. |
| 515 | Navient | 5,179 | 6,700 | Financial services corporation providing asset management and financial administration support, specifically in the student loan sector. |

## Notable firms

This list includes notable companies with primary headquarters located in the state. The industry and sector follow the Industry Classification Benchmark taxonomy. Organizations which have ceased operations are included and noted as defunct.
Notable companies Active State-owned Defunct :
| Name | Industry | Sector | Headquarters | Founded | Notes |
| 21st Century Insurance | Financials | Property & casualty insurance | Wilmington | 1958 | Auto insurance, part of Farmers Insurance Group |
| Aurora Bank | Financials | Banks | Wilmington | 1921 | Bank |
| Bank of Wilmington and Brandywine | Financials | Banks | Wilmington | 1810 | Bank |
| Chemours | Basic materials | Commodity chemicals | Wilmington | 2015 | Chemicals, spun off from DuPont |
| Delaware Intercorp | Industrials | Business support services | Newark | 1996 | Registry services |
| Del-One Federal Credit Union | Financials | Banks | Dover | 1960 | Credit union |
| Dogfish Head Brewery | Consumer goods | Brewers | Milton | 1995 | Brewery |
| DuPont | Basic materials | Commodity chemicals | Wilmington | 1802 | Chemical conglomerate |
| Du Pont Motors | Consumer goods | Automobiles | Wilmington | 1919 | Automobile manufacturer, defunct 1931 |
| EDiS Company | Industrials | Heavy construction | Wilmington | 1908 | Construction management |
| Fordham & Dominion Brewing Company | Consumer goods | Brewers | Dover | 2007 | Brewery |
| Grant & Eisenhofer | Industrials | Business support services | Wilmington | 1997 | Law firm |
| Happy Harry's | Consumer services | Broadline retailers | Wilmington | 1962 | Drugstores, merged into Walgreens |
| Harlan and Hollingsworth | Industrials | Commercial vehicles & trucks | Wilmington | 1837 | Ships and rail, defunct 1904 |
| Hercules Inc. | Basic materials | Commodity chemicals | Wilmington | 1912 | Gunpowder |
| House Industries | Industrials | Business support services | Yorklyn | 1990 | Design studio |
| ILC Dover | Industrials | Aerospace | Frederica | 1932 | Aerospace engineering |
| Incyte | Health care | Pharmaceuticals | Wilmington | 1991 | Pharmaceuticals |
| Iron Hill Brewery & Restaurant | Consumer goods | Brewers | Newark | 1996 | Brewery |
| Jackson and Sharp Company | Industrials | Commercial vehicles & trucks | Wilmington | 1863 | Ships and rail |
| Jade Tree | Consumer services | Broadcasting & entertainment | Wilmington | 1990 | Record label |
| Nassau Valley Vineyards | Consumer goods | Distillers & vintners | Lewes | 1993 | Winery |
| National Bank of Delaware | Financials | Banks | Wilmington | 1795 | Bank, defunct 1929 |
| National Vulcanized Fiber | Industrials | Building materials & fixtures | Yorklyn | 1923 | Material manufacturing |
| Navient | Financials | Consumer finance | Wilmington | 2014 | Student loan services |
| P&L Transportation | Industrials | Railroads | Wilmington | 1995 | Railway holdings |
| Pusey and Jones | Industrials | Commercial vehicles & trucks | Wilmington | 1848 | Shipbuilder, defunct 1959 |
| Sallie Mae | Financials | Banks | Newark | 1972 | Offers private student loans. |
| TMI Group of Companies | Industrials | Industrial machinery | New Castle | 1931 | Testing equipment |
| Tritek | Technology | Software | Wilmington | 1984 | Mailing software |
| Twin Lakes Brewing Company | Consumer goods | Brewers | Newport | 2006 | Brewery |
| Union Bank of Delaware | Financials | Banks | Wilmington | 1839 | Bank, acquired by Wilmington Trust in 1943 |
| Victorine & Samuel Homsey | Industrials | Business support services | Wilmington | 1935 | Architects, defunct 1979 |
| W. L. Gore & Associates | Basic materials | Commodity chemicals | Newark | 1958 | Fluoropolymers |
| Wilmington Trust | Financials | Asset managers | Wilmington | 1903 | Financial services |
| Wingspan Bank | Financials | Banks | Wilmington | 1999 | Online bank, defunct 2001 |
| WSFS Bank | Financials | Banks | Wilmington | 1832 | Bank and financial services |
| Young Conaway Stargatt & Taylor | Industrials | Business support services | Wilmington | 1959 | Law firm |
* DuPont Building on Rodney Square
* Wilmington Trust headquarters in Wilmington