A. O. Smith
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.
- Company typePublic
- Founded1874
- HeadquartersMilwaukee, United States
- Headcount5,001–10,000
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
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.
A. O. Smith firmographics
Firmographics- 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
A. O. Smith industry classification
Industry- 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
Where A. O. Smith is headquartered
LocationHeadquarters
- HQ city
- Milwaukee
- HQ country
- United States
- HQ region
- North America
Offices19 records
Markets served
A. O. Smith business model
Business model- 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
- 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.
- Commercial Water Treatment: Engineered water treatment solutions including commercial water softeners, filtration systems, and membrane filtration for industrial, healthcare, food & beverage, and institutional customers.
- 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.
- 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.
- 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.
- 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
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Signature Series available exclusively through Lowe's |
| Other | Pay-as-you-go | ProLine available through local plumbing contractors |
| Other | Pay-as-you-go | A. O. Smith Pro commercial line through wholesalers |
| Other | Pay-as-you-go | A. O. Smith Commercial engineered solutions |
Go-to-market motion3 records
Distribution channels6 records
Marketing channels8 records
A. O. Smith product offering
Product offeringCore 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
Companies that use A. O. Smith
Customer profileNamed customers5 records
Segments6 records
Ideal customer profiles5 records
A. O. Smith technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
A. O. Smith partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core and minor.
- The Water CouncilcoreA. 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)coreA. 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)minorA. O. Smith participates in NAM representing manufacturing industry interests in policy and regulatory matters.
- Lowe'scoreExclusive 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
A. O. Smith competitors and assessment
Company assessmentDirect 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
A. O. Smith social profiles
Digital presenceA. O. Smith financial estimates
Financial estimateRevenue estimate
Valuation estimate
A. O. Smith leadership team
Management profileNumber of profiles
Profiles18 records
A. O. Smith subsidiaries and ownership
Company hierarchySubsidiaries6 records
A. O. Smith funding detail
Funding detailFunding overview
Funding rounds1 record
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
A. O. Smith M&A and investment
M&A and investmentM&A18 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about A. O. Smith
What does A. O. Smith do?
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.
Is A. O. Smith a public or private company?
A. O. Smith is a public company. It is classified as public and is currently operating.
When was A. O. Smith founded?
A. O. Smith was founded in 1874. It employs 5,001 to 10,000 people.
Where is A. O. Smith based?
A. O. Smith is headquartered in Milwaukee, United States, in the North America region.
How does A. O. Smith make money?
Six revenue lines are on record. Water Heating Equipment is the primary driver. The others are commercial Water Treatment, residential Water Treatment, commercial Boiler Products, smart/IoT Connected Products and india Water Treatment Business.
Who are A. O. Smith's main competitors?
Direct peers on record are Bradford White Corporation, Rheem Manufacturing, Rinnai Corporation, Navien, Bosch Thermotechnology, Watts Water Technologies, Pentair and Culligan International. Broad incumbents are Carrier Global and Trane Technologies.
Does A. O. Smith have an API?
No public API is recorded for A. O. Smith.
What industry is A. O. Smith in?
A. O. Smith's product category is Water Heating Equipment. Its primary akta.pro industry code is IMAHAEAC, Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers), with a secondary code of IMADANAF, Heat Exchangers, Coils & Hydronic HVAC Components. Its NAICS code is 3334 and its SIC code is 3585.