Primary Metal Manufacturing in Connecticut

NAICS 331 · CT

This register lists 106 facilities in Connecticut. The Bureau of Labor Statistics counted 71 establishments of Primary Metal Manufacturing in Connecticut in 2025. Loos & Co., Inc. Pomfret, located in Pomfret Center, employed 252 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and product lines

Biggest counties

Naugatuck Valley25 South Central Connecticut21 Capitol18 Western Connecticut11 Southeastern Connecticut9 Greater Bridgeport8 Northeastern Connecticut6 Northwest Hills3

Biggest cities

Waterbury (10)Wallingford (9)Bristol (6)Bridgeport (5)Naugatuck (4)Bethel (4)Groton (3)North Haven (3)Meriden (3)Hamden (2)

Plants in Connecticut3 FACILITIES

Facility	City	Employees	Status
Doncasters INC Precision Castings New England	Groton	100–499	ACTIVE
Wyman-gordon Investment Castings, Incorporated	Groton	—	LIKELY ACTIVE
Pcc Structurals	Groton	—	UNVERIFIED

Search all 106 facilities

All primary metal manufacturing nationwide · All manufacturing in Connecticut