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Ariston Group Acquires Riello Group, Boosting Sustainable Innovation

Riello Group acquired by Ariston Group

AcquisitionManufacturing

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Riello Group logo
Acquired

Riello Group

Manufacturing

Undisclosed amount

December 17, 2025

Ariston Group logo
Acquirer

Ariston Group

Manufacturing

Ariston Group, a global leader in sustainable climate and water comfort listed on Euronext Milan, has acquired Riello Group for an undisclosed amount. This corporate acquisition sees Ariston Group further expand its portfolio and market presence. Ariston Group reported 2.6 billion-euro revenues in 2024, employs over 10,000 people, and focuses on renewable and high-efficiency solutions like heat pumps, domestic ventilation, and solar thermal systems. The group also has a dedicated components and burners business under brands like Thermowatt and Ecoflam. Riello Group is a respected player in heating systems, burners, and related components, which directly complements Ariston's existing strategic areas.

This transaction is a strategic move designed to reinforce Ariston Group's leadership in the thermal comfort sector and its commitment to energy transition solutions. By integrating Riello Group's established product lines and technological capabilities, Ariston aims to enhance its offering across both residential and commercial segments, particularly strengthening its position in the critical components and burners market. The acquisition is expected to generate significant synergies through an expanded product portfolio and collaborative innovation across their extensive research and development networks, fostering advancements in high-efficiency thermal comfort systems.

Operational efficiencies and a broader geographic footprint are also anticipated, enabling the combined entity to better serve global markets. This strategic purchase underscores Ariston Group's ongoing inorganic growth strategy. The integration of Riello Group is set to consolidate Ariston's market position, enhancing its capabilities in delivering comprehensive and innovative solutions for sustainable thermal comfort worldwide and accelerating its contributions to the energy transition.

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Supply Chain Management Software
Manufacturing ERP Systems
Cloud Computing & Infrastructure
Cybersecurity Solutions
Industrial Automation & Robotics
Digital Marketing & Advertising Services
Raw Material Suppliers (steel, copper, plastics)

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