ATB Group
GLOBAL
EXPERIENCE
ITALIAN
KNOW-HOW

ATB Group

ATB Group, an industrial organization based in Italy and operating in over 100 countries with about 1,500 employees, is a leading player with more than 100 years of worldwide experience and expertise in the following sectors:

Heavy equipment

An international leader in the design, manufacture and support service for heavy equipment in the petrochemical and nuclear industries.

Hydro mechanical equipment

For over a century we have been a leader in design, manufacturing, supplying, installation and commissioning Penstocks and Hydromechanical Equipment for hydropower projects.

Renewables

We are among the main European companies leaders in the design, manufacture and installation of hydroelectric and wind turbines.

Civil Construction & Industrial Services

Over thirty years of experience and specialization in industrial and civil construction, in the design and construction of infrastructure works, and the management of steel plants.

Worldwide

Since its establishment ATB Group has been expanding its presence on the global market to be able to satisfy the complex and diversified needs of the market.
Worldwide

Facilities

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Workshops: Roncadelle, Porto Marghera, Artogne in Italy and Medellin in Colombia.

Roncadelle

The main ATB Group workshop

Roncadelle Brescia - Italy Continue

Marghera

ATB Group assembly workshop

Marghera Porto Marghera - Italy Continue

Artogne

Renewables Workshop

Artogne Artogne - Italy Continue

Colombia

ATB Group Medellin Workshop

Colombia Medellin - Colombia Continue

Projects

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Browse our project portfolio and discover some of the best jobs we have completed.
Across the world ATB Group works with:
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News

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Follow all updates for News & Events of ATB Group activities around the world.
ISO 19443 certification

ISO 19443 certification

19 Jun 2025
Pizançon hydroelectric project awarded

Pizançon hydroelectric project awarded

31 May 2025
Site C: commissioning

Site C: commissioning

11 Feb 2025
ATB Group for clean fusion energy

ATB Group for clean fusion energy

27 Jan 2025
ATB: 120 years of Power

ATB: 120 years of Power

20 Dec 2024
Nachtigal hydroelectric project completed

Nachtigal hydroelectric project completed

09 Aug 2024
San Valentino Hydroelectric Project completed

San Valentino Hydroelectric Project completed

28 Jun 2024
Ituango: Installation of Penstock No 8

Ituango: Installation of Penstock No 8

31 May 2024

News from Social

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Follow the latest news about ATB's activities on social media
News
21/07/2025
HME

USACE & Marine Divine Solutions visit ATB HQ for Soo Gate project

ATB Riva Calzoni is pleased to welcome a delegation from the U.S. Army Corps of Engineers (#USACE) and our client #MarineDivineSolutions to its headquarter and workshops for the #Soo Gate Project in #SaultSaintMarie, #Michigan (#USA).

The visit was a great opportunity to present…

Vedi in Facebook

News
11/07/2025

Certificate ISO 19443 obtained

✅ ISO 19443 | Certificato ricevuto! Un sentito ringraziamento a ICIM per il percorso svolto insieme e per la professionalità dimostrata.

#ISO19443 #nucleare #energianucelare #industrianucleare #nuclear
__________________________________________

🌍 ISO 19443 |…

Vedi in Facebook

News
08/07/2025
HME

In AFRICA 2025, from gates to penstocks

#Africa2025 #Ghana From gates to penstocks, we power the flow! 🌎

💧 Join us at Stand 36 and connect with Stefano Lazzaro and Maria Ouahbi, #ATBRivaCalzoni experts in #Hydromechanical solutions for #Hydropower and #PumpedStorage projects.

#WaterStorage #SustainableDevelopment…

Vedi in Facebook

News
07/07/2025
HE

Press: Corriere della Sera, sezione Economia

Sul Corriere della Sera, sezione Economia, si parla di noi!

ATB Riva Calzoni tra i protagonisti dell’industria nucleare italiana: storia, competenze e uno sguardo rivolto al futuro.

#CorriereDellaSera #Economia #EnergiaNucleare #Sostenibilità #NucleareItaliano #Excellence…

Vedi in Facebook

News
05/07/2025
HME

Connect at #Africa2025 from July 8–10

🌍 Excited to connect at #Africa2025 in #Accra, #Ghana from July 8–10

🎯 #ATBRivaCalzoni will be at Stand 36, showcasing its expertise in #hydromechanical equipment and #steelpenstocks for major #dams, large-scale #hydropower, and #pumpedstorage projects.

👥 Let’s meet,…

Vedi in Facebook

News
02/07/2025
HE

ATB Riva Calzoni at NPPES 2025

🌍 ATB Riva Calzoni at NPPES 2025 – Istanbul, Turkey 🇹🇷

We were proud to take part in the Nuclear Power Plants Expo & Summit (NPPES) held on July 1–2 in Istanbul — a key event for the development of the nuclear energy sector in Turkey and beyond.

Our Sales Manager –…

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News
01/07/2025
HME

Participation in AFRICA 2025

🌍 Join us at AFRICA 2025 – Stand #36! 🌍
📍 Labadi Beach Resort, Accra – Ghana
📅 8–10 July 2025

We’re thrilled to confirm #ATBRivaCalzoni's participation in #AFRICA2025, the 5th International Conference and Exhibition on #WaterStorage and #HydropowerDevelopment…

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News
19/06/2025
GROUP

Obtained the ISO 19443 certification

🔧 Siamo entusiasti di annunciare che ATB RIVA CALZONI SPA ha ottenuto con successo la certificazione ISO 19443! 🎉

📌 Questo standard internazionale, che definisce i requisiti per i sistemi di gestione della qualità nel settore #nucleare, rappresenta un traguardo significativo per…

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News
31/05/2025
HME

National Dam Safety Awareness Day 2025

#National Dam Safety Awareness Day 2025 🌍

🌊 On this #International #DamSafety Day, we are proud to announce that #ATBRivaCalzoni, in partnership with #PonticelliFrères, has been awarded the rehabilitation project of #Pizançon #Dam in #France, as part of #EDF ’s #DamImprovement…

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News
22/05/2025
HE

Piacenza Nuclear Power EXPO

🎯 ATB Riva Calzoni a Piacenza Nuclear Power EXPO: un passo avanti per il nucleare in Italia

Siamo stati orgogliosi di partecipare alla prima edizione della fiera italiana interamente dedicata al nucleare, tenutasi presso Piacenza EXPO, portando il nostro contributo come realtà…

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News
16/05/2025
HE

French nuclear industry delegation in Roncadelle

🤝 May 16th 2025. ATB RIVA CALZONI had the pleasure of welcoming a French nuclear industry delegation to its Roncadelle headquarter, as part of an Italy-France meeting organized by AIN (Associazione Italiana Nucleare), GIFEN, ICE (Italian Trade Agency) with support from ANIMP and ANIMA Confindustria.

Vedi in Facebook

News
08/05/2025
HME

Power of Water Canada Conference 2025

🌊 #PowerofWater2025 #Canada
Meet us at Booth #25 and connect with #ATBRivaCalzoni experts in hydromechanical solutions for hydropower and pumped storage!

#ATBRivaCalzoni #POWC2025 #PowerofWater #RenewableEnergy #Engineering #ATBgroup #ATB #Gates #Penstock #Hydro #Hydromechanical…

Vedi in Facebook

News
08/05/2025
HE

Visit SPARC Complex of Commonwealth Fusion Systems

🌍 ATB Riva Calzoni is proud to have visited the SPARC complex of Commonwealth Fusion Systems, where we had the opportunity to see the successful installation of the cryostat base.

🏭 The visit also included a tour of their impressive manufacturing facility — a truly inspiring…

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News
07/05/2025
HME

Nuclear Power Expo 2025

📣 We’re excited to announce our participation in Nuclear Power Expo 2025, taking place in Piacenza from May 21st to 23rd!

🔹 You can find us in Hall 2, Booth R51 – our team will be there to connect, exchange insights on the nuclear market, and give you a closer look at our products…

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News
06/05/2025
HME

Power of Water Canada Conference 2025

Excited to connect at the #PowerofWaterCanada Conference 2025 in Niagara, Ontario from May 7–9!

#ATBRivaCalzoni will be at booth 25, showcasing its know-how and expertise in #hydromechanicalequipment and #steelpenstocks for major #Dams, #hydropower and #pumpedstorage projects.

Vedi in Facebook

News
30/04/2025
HME

Power of Water Canada Conference 2025

We are pleased to announce that #ATBRivaCalzoni will be participating in the #PowerofWaterCanada Conference 2025, the premier annual event for the #HydropowerIndustry, taking place May 7–9 in #Niagara, #Ontario, #Canada.

Visit us at booth #25 to discover our global expertise…

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News
24/03/2025
HE

Tavolo Industria Energetica Nucleare

Oggi, ATB ha avuto l'onore di essere invitata a partecipare
all'incontro "Tavolo Industria Energetica Nucleare" organizzato
dalla Regione Lombardia.
…
News
18/02/2025
HME

Turn-Key for Nachtigal Hydropower Plant

Nachtigal Hydropower Plant, 420MW, #Cameroon


Proud to showcase some of the #key equipment designed, manufactured and
…
News
14/02/2025
HME

ATB Riva Calzoni for Valentine’s Day

This Valentine’s Day, We Celebrate the #SanValentinoDam Project in #Bolzano, #Italy.

At #ATBRivaCalzoni, Valentine’s Day holds a special meaning. We are proud to have contributed to enhancing the #safety of #Resia Lake through the #turnkey supply of new wheel #gates for the second…
News
11/02/2025
HME

SiteC CleanEnergy Project: operation of Spillway Radial Gates and Low-Level Outlets

SiteC CleanEnergy Project, 1.100 MW, for #BCHydro in #BritishColumbia, #Canada

Breathtaking views of Spillway Radial Gates and Low-Level Outlets in operation
…
27/01/2025
HE

ATB Group for clean fusion energy

🌍 Here's how we're contributing to fusion energy! ⚡

This is the cryostat base for the SPARC fusion energy machine, manufactured for
Commonwealth…

Vedi in Facebook

20/12/2024
HME

Discover ATB Riva Calzoni’s excellence in action!

Discover ATB Riva Calzoni’s excellence in action!

We’re excited to showcase #ATBRivaCalzoni’s #FabricationProcesses and some of the incredible #Projects we’ve successfully delivered #Worldwide.

Our new video reflects the #Dedication, #Innovation, and #Craftsmanship…
News
12/12/2024
GROUP

Politecnico di Milano in visita ad ATB Riva Calzoni

Politecnico di Milano in visita ad ATB Riva Calzoni


Oggi abbiamo avuto il piacere di ospitare un gruppo di 27 studenti della facoltà
…
News
04/12/2024
HE

Evento: l’industria italiana e le opportunità del nuovo nucleare

🔹 Martedì 3 dicembre 2024, ATB ha avuto il piacere di partecipare e
sostenere l’evento organizzato da AIN Associazione Italiana Nucleare, dal titolo
“L’industria italiana e le opportunità del nuovo…
News
26/11/2024
HME

British Hydropower Association Conference

We’re at the British Hydropower Association Conference in Glasgow for today
& tomorrow! Don’t miss the opportunity to connect with Stefano Lazzaro and
discuss hydropower innovation and collaboration.
News
22/11/2024
HME

Invite to British Hydropower Association's Annual Conference

We are pleased to share that we will be attending the British Hydropower
Association's Annual Conference, Exhibition, and Dinner on November 26-27,
2024, at the Hilton Glasgow.
…
News
19/11/2024
HME

Exhibiting in HYDRO 2024

We’re Exhibiting at #HYDRO2024 in #Graz!
Look for our booth #068 in the exhibition area and don’t miss the opportunity to
connect with our team.

…
News
15/11/2024
HME

ATB Riva Calzoni at HYDRO 2024, Join Us!

#ATBRivaCalzoni at #HYDRO2024 – Join Us!
We are excited to announce our participation in the #HYDRO2024 International
Conference and Exhibition, taking place at Messe Congress Graz (MCG) in Austria,
News
12/11/2024
HME

Join Us at #ANCOLD2024!

We’re excited to attend the 2024 #ANCOLD Conference in #Adelaide, November
11-14. This prestigious event brings together top…
News
11/11/2024
GROUP

La fiera Domani Lavoro è giunta al termine

La fiera Domani Lavoro è giunta al termine. Sono stati tre giorni intensi,
ricchi di incontri con giovani talenti che si affacciano al mondo del lavoro e
professionisti già avviati in cerca di nuove…