A.O. Smith Corporation

Active Public

Largest water heater manufacturer in North America. Brands include State, Lochinvar, and Aquasana. Serves residential and commercial construction markets.

HQ
United States
Ownership
Public

Ownership graph

No public ownership relationships listed.

Capital

Public listing
AOS on NYSE ($9.5B market cap, as of 2026-09)

Market position

Roles
Building Suppliers

Provenance

Verified date not recorded.