Tamini Transformers

For over 100 years, Tamini Trasformatori has been Italy’s leading name in industrial and power transformers.

Our expertise for the energy of the future

As a transformer manufacturer based in Italy with an established international presence, we design, manufacture and maintain transformers worldwide for energy-intensive industries and key players in the energy sector.

  • Over 10 millions €

    in investments

    in the last 2 years

  • 266,7 millions €

    in total revenues

    in 2025 (+22% vs 2024)

  • Over 150

    transformers

    realized in 2025

Our products: power and industrial transformers

We design large power transformers for the generation, transmission, and distribution of electrical energy. We also manufacture industrial transformers for metallurgy industry and rectifiers transformers, with comprehensive technical support. Custom engineering and comprehensive technical support have always been among Tamini’s distinguishing strengths.

Products

Transformers for power application

Custom-built transformers for power generation, transmission, and distribution in Italy and abroad.
Read more about power application
Products

Transformers for industrial applications

Transformers and reactors for the metallurgical industry, rectifiers, and transformers for electrical power distribution.
Read more about industrial application
SERVICES

Technical support services for transformers

Comprehensive technical support for transformers: installation, after-sales service, repairs, upgrades, emergency services, and rentals.
Read more about services

Unique solutions, built around our customers’ needs

Our expertise combines the quality and reliability of “Made in Italy” solutions, designed and manufactured using the most advanced technologies, to support our customers on their energy transition journey. This makes us one of the most highly regarded Italian transformer manufacturers in the world.

Unique in quality

Our transformers are the result of a unique blend: Made in Italy craftsmanship combined with cutting-edge technology.

Unique in technology

We use innovative research and development methods to give our customers products and services that consistently meet the highest quality standards

Unique in customization

We meet our customers’ specific needs through our ability to tailor every solution, drawing on over a century of experience in the sector.

Unique in design

Our skilled, qualified team designs unique products, thanks to the know-how and distinctive expertise we’ve gained around the world.

Transformers since 1916

Our strength lies in over a hundred years of history: Tamini Transformers was founded in 1916 and has been synonymous with Italian industrial excellence ever since. Discover the key milestones in our ongoing commitment to the highest standards of quality, craftsmanship and customer satisfaction.

Discover our story since 1916

Our projects around the world

Over a century of history in our customer relationships too: this makes us global energy leaders, technological innovators and specializsed suppliers. Our strength lies in our ability to support clients in their business, offering power and industrial transformer solutions worldwide.

Discover other projects
Ansaldo Energia

Ansaldo Energia

Supply of three transformers for the Tavazzano-Montanaso thermoelectric power plant, including the largest ever built in Italy (670 MVA).

 Go to the project Mostra la card per Ansaldo Energia
BKW Hydro Italia

BKW Hydro Italia

Temporary rental of a transformer to ensure production continuity after a fault, while Tamini repaired the original unit.

 Go to the project Mostra la card per BKW Hydro Italia
Terna S.p.A.

Terna S.p.A.

A 250 MVA green autotransformer with natural ester insulation, urgently relocated to restore the grid after a fire at San Damaso.

 Go to the project Mostra la card per Terna S.p.A.
Acciaierie Venete

Acciaierie Venete

Complete revamping of a 50 MVA transformer for the steel industry, including work on the active part, OLTC, bushings and cooling system.

 Go to the project Mostra la card per Acciaierie Venete
Jolly transformer for electric furnaces (India)

Jolly transformer for electric furnaces (India)

A universal Jolly transformer for ladle furnaces with different specifications, ensuring production continuity across all plants.

 Go to the project Mostra la card per Jolly transformer for electric furnaces (India)
Ester liquid retrofill for furnace transformers (USA)

Ester liquid retrofill for furnace transformers (USA)

Retrofitting of furnace and rectifier transformers with less flammable ester liquid, for greater safety and operational continuity.

 Go to the project Mostra la card per Ester liquid retrofill for furnace transformers (USA)
One of the world's largest SAF transformers (Indonesia)

One of the world’s largest SAF transformers (Indonesia)

A three-phase SAF transformer, fully interchangeable with existing units, for a nickel production plant in Indonesia.

 Go to the project Mostra la card per One of the world’s largest SAF transformers (Indonesia)

Tamini News: updates on projects and transformers

Discover all the news
Tamini si aggiudica un nuovo progetto in Danimarca

7 September 2026

Tamini awarded new project in Denmark

Tamini has been awarded a contract to supply three autotransformers supporting the Danish power grid and the country’s energy transition.

Discover more on LinkedIn
I risultati H12026 confermano la solidità industriale di Tamini

31 July 2026

1H2026 results confirm the strength of Tamini's expertise

Growing demand and the technological excellence of our transformers continue to strengthen our role in supporting the energy transition and the evolution of power systems.
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Dalla fabbrica alla Svezia: un viaggio di precisione

30 July 2026

From the factory to Sweden: a journey of precision

Transporting a transformer requires planning, coordination, and a strong focus on safety: a concrete example of expertise and teamwork.

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Sicurezza: a Legnano una giornata di confronto e crescita

20 July 2026

Safety at the core: a day of learning in Legnano

Tamini’s Legnano plant welcomed Terna’s Safety Ambassadors for a day dedicated to sharing best practices and strengthening a common safety culture.

Discover more on LinkedIn
Tamini: importante presenza negli USA con nuovi contratti strategici

15 July 2026

Tamini: strengthening its presence in the USA with strategic contracts

New supply agreements with leading players in the U.S. steel industry confirm the international market’s confidence in Tamini’s excellence.

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AI e sensoristica avanzata: il futuro dei trasformatori

3 July 2026

Advanced sensors and AI for smarter transformers

Transformers are evolving into increasingly digital assets, with advanced monitoring and predictive maintenance capabilities.

Discover more on LinkedIn