A. O. Smith

What A. O. Smith does

A. O. Smith Corporation, founded in 1874 and headquartered in Milwaukee, Wisconsin, is a global water technology manufacturer that designs, produces and sells residential and commercial water heating and water treatment equipment. Its product portfolio spans heat pump, gas, electric and tankless water heaters under the ProLine and Signature Series brands; commercial boilers and storage tanks under the Lochinvar brand; and water filtration, softening and purification systems marketed through A. O. Smith Pro, Aquasana, Hague, Master Water Conditioning, Atlantic Filter, Water-Right and Pureit brands. With the January 2026 acquisition of Leonard Valve Company, the company added thermostatic mixing valves, digital water tempering systems, advanced boiler controls and the Heat-Timer BuildingNet cloud-based building monitoring platform, extending its reach into integrated smart mechanical room solutions for commercial and institutional customers.

The company generates revenue primarily through hardware sales distributed across multiple channels: exclusive retail partnership with Lowe's for Signature Series residential water heaters in the United States, a nationwide network of plumbing contractors for ProLine, wholesale distributors and direct field sales for commercial and engineered water treatment systems, and international operations spanning 60+ countries across North America, Asia, Europe, the Middle East and Latin America. Pricing is largely quote-based for commercial and engineered solutions, with consumer products sold through retailer-set price points. Customer segments span residential consumers, healthcare and education institutions, food and beverage and industrial manufacturers, and plumbing trade professionals. Connected products (iCOMM, BuildingNet) and smart home-enabled heat pump water heaters represent an emerging premium tier layered onto the traditional hardware business.

A. O. Smith operates manufacturing and technology centers across the United States (Milwaukee, Ashland City, Lebanon, Appleton, McBee, Florence, Cranston), Mexico (Ciudad Juárez), China (Nanjing), India (Mumbai and Bengaluru), the Netherlands (Veldhoven) and the United Kingdom (Banbury). The company is publicly traded on the NYSE under ticker AOS, employs approximately 11,500-12,700 people globally, reported FY2025 net sales of $3.83 billion and record diluted EPS of $3.85, and has returned capital to shareholders for over 30 consecutive years of dividend increases alongside active share repurchases.

Name

A. O. Smith

Legal name

A. O. Smith Corporation

Website

https://aosmith.com

Company type

Public

Founded year

1874

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

A. O. Smith Corporation is a 150-year-old global water technology manufacturer that designs and sells residential and commercial water heaters, boilers, and water treatment and purification systems through Lowe's, plumbing contractors, wholesalers and direct commercial sales in over 60 countries.

Ownership category

akta.pro rank

Product category

Water Heating Equipment

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers (42372)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

akta.pro secondary industries

Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF), Industrial Heat Pumps & Mechanical Vapor Recompression (Low–Mid Temp Heat) (EUABAJAB)

Keywords

• Water heating equipment
• Water treatment systems
• Commercial boilers
• Water filtration products
• Heat pump water heaters

Headquarters

HQ city

Milwaukee

HQ country

United States

HQ region

North America

Offices19 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Water Heating Equipment: Manufactures and sells residential and commercial water heaters including heat pump, gas, electric, and tankless models. Revenue from equipment sales through wholesale distribution, retail channels (Lowe's), and direct contractor sales.
2. Commercial Water Treatment: Engineered water treatment solutions including commercial water softeners, filtration systems, and membrane filtration for industrial, healthcare, food & beverage, and institutional customers.
3. Residential Water Treatment: Water filtration and softening products for residential use, including Aquasana, Hague, Master Water Conditioning, Atlantic Filter, and Water-Right brand lines sold through dealers and retailers.
4. Commercial Boiler Products: Lochinvar branded commercial boilers, commercial water heaters and storage tanks. Leonard Valve integration enables smart mechanical room solutions combining boilers with temperature control systems.
5. Smart/IoT Connected Products: Connected water heating and treatment products with smart home integration, remote monitoring, and digital services for monitoring water quality and equipment performance.
6. India Water Treatment Business: Residential electric water heaters and water purifiers for India market through A. O. Smith India Water Products Private Limited. Includes Pureit brand acquired from Unilever.

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels8 records

Core offering

A. O. Smith manufactures and sells residential and commercial water heaters (gas, electric, tankless, and heat pump), commercial boilers, water treatment equipment including filtration, softening, and reverse osmosis systems, thermostatic mixing valves, and connected/IoT-enabled monitoring products. The company sells consumer products through retail and contractor channels and engineered commercial/industrial solutions through wholesale distributors and direct sales, serving customers in over 60 countries.

Product overview

A. O. Smith is a global technology manufacturer offering two core product lines: Water Heating (including heat pump, gas, electric, and tankless water heaters under ProLine® and Signature® Series brands) and Water Treatment (encompassing water filtration, softening, and purification under A. O. Smith Pro, A. O. Smith Commercial, Aquasana, Master Water Conditioning, Atlantic Filter, Water-Right, Hague, and Pureit brands). The company expanded into water management in 2026 through the acquisition of Leonard Valve Company, which adds water temperature control valves, thermostatic mixing systems, and the Heat-Timer/BuildingNet cloud monitoring platform. Lochinvar brand serves the commercial boiler segment. The portfolio serves residential, commercial, and industrial markets across North America, Asia, and Europe.

Differentiator

Problem solved

Functional benefit

Brands

• Lochinvar: Commercial and residential boilers, commercial water heaters and storage tanks for North America
• Aquasana
• Hague
• Master Water Conditioning
• Atlantic Filter
• Water-Right
• Leonard Valve
• Heat-Timer
• Pureit
• ProLine
• Signature Series

Products and services

• Water Heating Products Comprehensive range of residential and commercial water heaters including heat pump, gas, electric, and tankless models designed for high efficiency water heating.
• Water Treatment Products Water filtration and softening products engineered to provide cleaner, safer water for residential and commercial applications.
• ProLine Water Heaters Residential water heaters available through local plumbing contractors across the country.
• Signature Series Water Heaters Residential water heaters exclusively available through Lowe's, featuring smart home connectivity and energy efficiency.
• A. O. Smith Commercial Water Treatment Engineered water treatment solutions including commercial water softeners, water filtration systems, and membrane filtration systems backed by expert support for dependable, cost-efficient performance.
• A. O. Smith Pro Water Treatment Exclusive professional line including water filtration and softening products available through local wholesalers.
• Lochinvar Commercial Boilers and Water Heaters Commercial and residential boilers, commercial water heaters and storage tanks for North America, with a Product Development Center located in Lebanon, Tennessee.
• Leonard Valve Thermostatic Mixing Valves and Digital Water Tempering Systems Water temperature control valves, digital and thermostatic mixing systems, and boiler controls for commercial and institutional settings, including the Heat-Timer brand and BuildingNet SaaS cloud monitoring platform.
• BuildingNet Cloud Monitoring SaaS Platform Cloud-based monitoring platform from the Heat-Timer subsidiary enabling digital water management and smart building integration for commercial customers.
• Aquasana Water Filtration Products Water filtration brand acquired as part of A. O. Smith's North America Water Treatment business unit, sold through dealers and retailers.
• Hague Water Treatment Products Water treatment brand acquired and integrated into A. O. Smith's North America Water Treatment portfolio, sold through dealers.
• Master Water Conditioning Products Water treatment company acquired in 2021 to expand A. O. Smith's presence in the North American water treatment market.
• Atlantic Filter Water Filtration Products Water filtration brand acquired to expand A. O. Smith's market presence in the water filtration segment, sold through the North America Water Treatment unit.
• Water-Right Water Treatment Products Water treatment brand included in the North America Water Treatment business unit product portfolio, sold through dealers and retailers.
• Pureit Water Purification Products Water purification products for residential and commercial markets in India and South Asia, acquired from Hindustan Unilever Limited.

Quantifiable outcome

• Up to 40% more hot water with significant energy savings
• +3 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• The Water CouncilcoreOthersA. O. Smith is a founding partner of The Water Council, a global water technology hub based in Milwaukee. The partnership supports water technology innovation, research, and industry collaboration.
• Water Quality Association (WQA)coreOthersA. O. Smith is an active member and past president of the Water Quality Association. The company has board representation and received WQA's Hall of Fame Award in 2017.
• National Association of Manufacturers (NAM)minorOthersA. O. Smith participates in NAM representing manufacturing industry interests in policy and regulatory matters.
• Lowe'scoreChannel Partner/ Reseller/ DistributorExclusive retail distribution partnership for Signature Series water heaters, available exclusively through Lowe's retail stores and Lowe's website for consumer purchases.

Scale indicators20 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Bradford White Corporation: Bradford White is a US-based manufacturer of residential and commercial water heaters, including gas, electric, and tankless models. It competes head-to-head with A. O. Smith in the wholesale and plumbing contractor channels for water heating equipment.
• Rheem Manufacturing: Rheem is a leading North American manufacturer of residential and commercial water heaters, boilers, and HVAC equipment. It is the closest direct competitor to A. O. Smith in tank, tankless, gas, electric, and heat pump water heaters serving the same wholesale, contractor, and retail channels.
• Rinnai Corporation: Rinnai is a Japanese manufacturer specializing in tankless water heaters and condensing technology for residential and commercial applications. It is a direct competitor in the tankless and high-efficiency water heater category where A. O. Smith also competes, especially in North America.
• Navien: Navien is a US subsidiary of Korea's KD Navien and manufactures condensing tankless water heaters and combi-boilers. It is a direct peer in the high-efficiency residential and light commercial water heating segment and competes with A. O. Smith's tankless and condensing products.
• Bosch Thermotechnology: Bosch Thermotechnology manufactures residential and commercial water heaters, boilers, and heat pump solutions across Europe and North America. It is a direct peer to A. O. Smith in tankless water heaters, condensing boilers, and heat pump water heaters.
• Watts Water Technologies: Watts Water Technologies manufactures water treatment, plumbing, flow control, and water quality products for residential, commercial, and industrial markets. It is a direct peer to A. O. Smith's water treatment and commercial water management business, including overlapping offerings in valves and filtration.
• Pentair: Pentair is a global water treatment and flow technology company with residential and commercial filtration, softening, and pool products. It is a direct peer to A. O. Smith's water treatment business units (Aquasana, Hague, Water-Right) and competes in both retail and professional channels.
• Culligan International: Culligan is a global water treatment company specializing in residential and commercial water softening, filtration, and drinking water systems. It is a direct peer to A. O. Smith's residential water treatment portfolio and competes in the dealer and direct-to-consumer channels.

Broad incumbents

• Carrier Global: Carrier Global is a major HVAC and building solutions incumbent offering heating, cooling, and commercial refrigeration systems. It is a broad incumbent peer to A. O. Smith's commercial water heating and boiler business, with overlap in commercial mechanical rooms though Carrier is not specialized in water heating.
• Trane Technologies: Trane Technologies is a global climate innovations incumbent offering commercial and residential HVAC, building automation, and energy services. It is a broad incumbent peer with overlap in commercial boilers, building automation, and energy-efficient mechanical room solutions where A. O. Smith competes via Lochinvar and Leonard Valve.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/aosmithhotwater
• Facebookfacebook.com/220554620563
• LinkedInlinkedin.com/company/a.o.-smith

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 records

Subsidiaries6 records

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A18 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about A. O. Smith