Delaware manufacturing fact sheet
THE FACTORY CENSUS, Q3 2026 · FACTORYREGISTRY RESEARCH · SNAPSHOT JUL 2026
As of JUL 2026, FactoryRegistry lists 617 manufacturing facilities in Delaware, of which 282 (45.7%) carry a recent operating signal. That is 58.65 facilities per 100,000 residents.
Top counties
| COUNTY | FACILITIES |
|---|---|
| New Castle | 389 |
| Sussex | 130 |
| Kent | 62 |
Leading industries
| SUBSECTOR | FACILITIES |
|---|---|
| 325 Chemical Manufacturing | 142 |
| 332 Fabricated Metal Product Manufacturing | 69 |
| 311 Food Manufacturing | 58 |
| 326 Plastics and Rubber Products Manufacturing | 55 |
| 339 Miscellaneous Manufacturing | 53 |
Largest listed employers
| FACILITY | CITY | EMPLOYEES |
|---|---|---|
| Delaware City Refining CO LLC | Delaware City | 500+ |
| DuPont Electronic Materials | Newark | 500+ |
| Georgetown Plant | Georgetown | 500+ |
| Kraft Heinz Dover Delaware | Dover | 500+ |
| Little Falls Site DE | Wilmington | 500+ |
| Milford Plant | Milford | 500+ |
| Millsboro Processing | Millsboro | 500+ |
| Newark Site | Newark | 500+ |
| Selbyville Processing | Selbyville | 500+ |
| Air Liquide Advanced Separations | Newport | 100-499 |
Ranked by reported employment band. Facilities whose sources report no band are not listed here.
Coverage
The registry lists 617 facilities in Delaware against a BLS QCEW benchmark of 807 manufacturing establishments (2024) — coverage of 76.5%. The benchmark is a floor: QCEW counts establishments covered by unemployment insurance and so excludes most sole proprietors and some contract operations. The real number of manufacturing sites is therefore higher than the benchmark, and this percentage overstates coverage rather than understating it. Where it exceeds 100%, the registry lists more sites than QCEW counts establishments — which is expected in states with many small or single-person operations, and is also where duplicate listings would show up first.
Full census, Q3 2026 · Delaware in the registry
FactoryRegistry Research, The Factory Census, Q3 2026 — factoryregistry.com/census/2026-q3/de · press@factoryregistry.com