What Caleffi does

Caleffi S.p.A. is an Italian manufacturer of hydronic and plumbing components founded in 1961 and headquartered in Fontaneto d'Agogna, Italy. The company designs and produces valves, magnetic dirt separators, electronic mixing valves, pressure-reducing and balancing valves, scale-prevention devices, heat cost allocators, and connected-system accessories for residential, commercial, and industrial heating, cooling, and water-treatment applications. Its product line includes proprietary platforms such as the LEGIOMIX evo electronic mixing valve with programmable thermal disinfection, the CALEFFI XF and XL magnetic filters, the eCAL electrolytic scale-prevention device, and the FLOWMATIC pressure-independent balancing family, complemented by a natively modeled REVIT BIM library and digital tools (Caleffi Schemes, Pipe Sizer, Domestic Water Sizer) for designers and engineers.

Caleffi sells through a hybrid go-to-market combining direct commercial relationships, sales agents, and authorized distributors, with 22 subsidiaries in 19 countries and reach into more than 90 countries overall. The revenue model is predominantly unit-priced product sales from catalogs, with an emerging recurring/connected-services layer via Caleffi Cloud, Caleffi Code (Google Home and Amazon Alexa integration), Conteca heat allocators, and Monitor consumption meters. Customer segments are installer/plumber, design engineer, and wholesaler/distributor; the company also targets industrial and district-heating applications.

The company operates as a private, family-controlled Italian S.p.A. under President Marco Caleffi, with a registered capital of €6,000,000 and approximately 251-500 employees. Operational highlights include a Smart Factory transition completed in 2018 (Industry 4.0), ISO 9001:2015 renewal in May 2024, ISO 14001 environmental certification, ISO 45001:2023 certification acquired in 2025, and AEOF Authorized Economic Operator status since 2012. The firm continues to invest in product expansion (CALEFFI XL, eCAL, FLOWMATIC Express), connected platforms, and North American market development via AHR Expo 2026 and CMPX 2026.

Name

Caleffi

Legal name

Caleffi S.p.A.

Website

https://caleffi.com

Company type

Private

Founded year

1961

Operating status

Operating

Headcount range

251–500 employees

Short description

Caleffi S.p.A. is a 1961-founded Italian manufacturer of hydronic and plumbing components — valves, magnetic filters, electronic mixers, and connected devices — sold through 22 subsidiaries and distributors in more than 90 countries to installers, designers, and wholesalers.

Ownership category

akta.pro rank

Product category

Hydronic and Plumbing Components

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF)

akta.pro secondary industry

Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Hydronic components
• Plumbing valves
• Heating systems
• Water treatment devices
• HVAC components

Headquarters

HQ city

Fontaneto D'agogna

HQ country

Italy

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Product Sales - Heating and Plumbing Components: Caleffi generates revenue primarily through the sale of hydronic components including thermostatic valves, pressure reducing valves, magnetic filters, mixing valves, safety valves, and system balancing products. Prices are set according to Caleffi catalogs in effect at time of shipment. The company sells through direct sales, sales agents, and distributor networks globally.
2. Connected Product Services: Revenue from connected products including LEGIOMIXevo, Conteca, Monitor, and Caleffi Code that generate usage data. Data is stored on devices and remote servers with varying retention periods.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Caleffi manufactures and distributes hydronic components for heating, plumbing, air conditioning, and renewable energy systems. Its portfolio includes thermostatic valves, pressure-reducing valves, magnetic dirt separators, electronic mixing valves, balancing valves, and scale-prevention devices. The company extends its offering through connected smart-home products, a cloud monitoring platform, and BIM design resources for professional specifiers.

Product overview

Caleffi is a manufacturer of hydronic solutions and plumbing components headquartered in Italy, operating since 1961. The product portfolio centers on heating and cooling system components including magnetic dirt separators (CALEFFI XL, CALEFFI XF, FILTERSTOP), electronic mixing valves with thermal disinfection (LEGIOMIX evo), pressure control valves (FLOWMATIC, PresCal HP, Vacu-Stop), and scale prevention devices (CALEFFI eCAL, CALEFFI XP MINI). The offering extends to smart home connectivity via Caleffi Code compatible with Google Home and Amazon Alexa, heat measurement devices (Conteca, Monitor), and supporting digital platforms including Caleffi Cloud for connected device monitoring and a BIM library natively modeled in REVIT. Software tools for design include Caleffi Schemes, Pipe Sizer, and Domestic Water Sizer. Educational resources include idronics technical publications, the Coffee with Caleffi webinar series, and Ask Caleffi Podcast. The products serve residential, commercial, and industrial hydronic and plumbing applications across more than 90 countries.

Differentiator

Problem solved

Functional benefit

Brands

• CALEFFI eCAL: Electrolytic scale-prevention device with filter and magnet for water treatment
• CALEFFI XF
• FLOWMATIC
• LEGIOMIX
• CALEFFI CODE
• CUBOROSSO
• The Caleffi Green
• Vacu-Stop
• PresCal HP
• FILTERSTOP

Products and services

• CALEFFI XL Stainless Steel Magnetic Filter Stainless steel magnetic filter designed for hydronic systems protection. Features extra-large filtration capacity and simplified maintenance requirements.
• CALEFFI eCAL Electrolytic Scale-Prevention Device Electrolytic scale prevention device combining filtration and magnetic technology. Provides protection against limescale in domestic hot water systems.
• LEGIOMIX evo Electronic Mixing Valve Advanced electronic mixing valve with programmable thermal disinfection and connectivity features. Enables remote monitoring and control via Caleffi Cloud for Legionella prevention in domestic hot water systems.
• CALEFFI XF Self-Cleaning Magnetic Dirt Separator Semi-automatic self-cleaning magnetic dirt separator with brass construction. Designed for hydronic system protection in residential and commercial installations.
• FILTERSTOP Inspectable Filter Inspectable filter (Series 5771) with interception valve for system protection and maintenance convenience in hydronic installations.
• CALEFFI XP MINI Polyphosphate Doser Under-boiler polyphosphate doser for scale prevention in heating systems.
• FLOWMATIC Pressure Independent Control Valves Pressure independent control valve series for HVAC applications including VAV reheat boxes, fan-coils, and chilled beams. Ensures consistent flow regardless of pressure variations.
• FLOWMATIC Express Pressure Independent Control Valves Pressure independent control valves designed for terminal units including VAV reheat boxes, fan-coils, and chilled beams. Part of the premium FLOWMATIC balancing product family.
• PresCal HP High Flow Pressure Reducing Valve High flow pressure reducing valve (Series 536) with NPT connections and high range adjustment for commercial plumbing applications.
• Vacu-Stop Vacuum Relief Valve Vacuum relief valve (Series 3040) for protection against negative pressure in hydronic systems.
• Caleffi Code Smart Home Connectivity Smart home connectivity system enabling control of Caleffi devices via Google Home and Amazon Alexa. Connects domestic water and heating systems to smart home ecosystems for remote monitoring and control.
• Caleffi Cloud Digital services portal for connected systems. Enables real-time device monitoring, parameter checking, and remote intervention for Caleffi connected products including LEGIOMIX evo, Conteca, Monitor, and Caleffi Code devices.
• Conteca Heat Cost Allocator Heat cost allocator device for individual heating measurement in multi-apartment buildings. Generates data in JSON format and connects to Caleffi Cloud for monitoring.
• Monitor Heat Consumption Meter Device for monitoring heat consumption via meters/pulse readers. Stores data on remote server for 5 years and integrates with Caleffi Cloud.

Quantifiable outcome

• 100% of incoming polyethylene packaging recovered and reused
• +4 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature7 records

Partnerships

One partnership is on record.

• AccessiWayminorOthersAccessiWay is a partner specialized in digital accessibility who works alongside Caleffi to align the website as closely as possible with WCAG guidelines developed by W3C. The partnership helps provide a more inclusive digital experience and ensures compliance with accessibility regulations.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Watts Water Technologies: Watts Water Technologies is a global manufacturer of plumbing, heating, and water quality products including valves, flow control, and drainage. It is a direct peer given the overlapping hydronic component portfolio, installer/designer customer base, and global distribution model.
• Danfoss: Danfoss is a Danish global manufacturer of heating, ventilation, and air conditioning (HVAC) components including thermostatic radiator valves, balancing valves, and electronic controls. Directly comparable in hydronic solutions and renewable-energy heating applications.
• IMI plc: IMI plc is a UK-listed specialist in flow control and hydronic systems for HVAC, providing balancing valves, pressure-independent control valves, and smart building controls. Highly comparable given direct overlap with Caleffi's FLOWMATIC and hydronic balancing products.
• Reliance Worldwide Corporation: RWC is a global manufacturer of plumbing, heating, and water management products serving residential and commercial markets through distribution. Overlaps with Caleffi in hydronic valves, water treatment, and pressure control solutions.
• Spirax-Sarco Engineering: Spirax-Sarco specializes in steam systems, thermal energy management, and fluid control components for industrial and commercial applications. Comparable to Caleffi in providing high-spec hydronic and steam-related flow control components.
• Georg Fischer (GF Piping Systems): Georg Fischer's Piping Systems division manufactures plastic and metal piping, fittings, valves, and flow control for water and HVAC distribution. Comparable to Caleffi in serving installers and designers of hydronic and water management systems.
• Caleffi Solar (Xylem / Bell & Gossett): Bell & Gossett, part of Xylem, manufactures hydronic system components including pumps, valves, and heat exchangers for commercial HVAC. Directly comparable to Caleffi in the commercial hydronic balancing and system protection category.

Regional players

• Wilo SE: Wilo is a German-based global manufacturer of pumps and pump systems for HVAC, water supply, and drainage. Comparable to Caleffi in serving European hydronic installers, though with a stronger pump-centric portfolio.

Broad incumbents

• Siemens Smart Infrastructure: Siemens Smart Infrastructure offers building automation, HVAC controls, and valve/actuator solutions for commercial and industrial buildings. Comparable to Caleffi as a broader incumbent integrating hydronic control into building management systems.
• Honeywell International: Honeywell's Building Automation and HVAC components divisions produce thermostats, valves, actuators, and connected controls for commercial buildings. Comparable as a broad incumbent in building-level hydronic and HVAC control.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=Cpp9IjqGZ6s&list=PL53C734E057090586

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Caleffi