Connecticut manufacturing fact sheet
THE FACTORY CENSUS, Q3 2026 · FACTORYREGISTRY RESEARCH · SNAPSHOT AUG 2026
As of AUG 2026, FactoryRegistry lists 2,711 manufacturing facilities in Connecticut, of which 1,719 (63.4%) carry a recent operating signal. That is 73.77 facilities per 100,000 residents.
Full census, Q3 2026 · Connecticut in the registry
Top counties
| COUNTY | FACILITIES |
|---|---|
| Capitol | 799 |
| South Central Connecticut | 488 |
| Naugatuck Valley | 398 |
| Western Connecticut | 278 |
| Greater Bridgeport | 184 |
| Lower Connecticut River Valley | 138 |
| Southeastern Connecticut | 123 |
| Northeastern Connecticut | 101 |
| Northwest Hills | 85 |
Leading industries
| SUBSECTOR | FACILITIES |
|---|---|
| 332 Fabricated Metal Product Manufacturing | 793 |
| 333 Machinery Manufacturing | 293 |
| 336 Transportation Equipment Manufacturing | 290 |
| 334 Computer and Electronic Product Manufacturing | 282 |
| 325 Chemical Manufacturing | 243 |
Largest listed employers
| FACILITY | CITY | EMPLOYEES |
|---|---|---|
| Asml | Wilton | 500+ |
| Becton Dickinson - Canaan | Canaan | 500+ |
| Broadridge Customer Communications, LLC (2) | South Windsor | 500+ |
| Garden of Light, INC. | East Hartford | 500+ |
| Honeywell Fire Safety | Northford | 500+ |
| Killingly Plant | Dayville | 500+ |
| Lockheed Martin Corporation US CT Stratford Main St (5225) | Stratford | 500+ |
| Medtonic | North Haven | 500+ |
| Pratt & Whitney East Hartford | East Hartford | 500+ |
| Pratt & Whitney Middletown | Middletown | 500+ |
Ranked by reported employment band. Facilities whose sources report no band are not listed here.
Coverage
The registry lists 2,711 facilities in Connecticut against a BLS QCEW benchmark of 4,539 manufacturing establishments (2024) — coverage of 59.7%. 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.
FactoryRegistry Research, The Factory Census, Q3 2026 — factoryregistry.com/census/2026-q3/ct · press@factoryregistry.com