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 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.

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, Artogne in Italy and Medellin in Colombia.

Roncadelle

The main ATB Group workshop

Roncadelle Brescia - 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.
SIMIC and ATB: New Contract for Nuclear Components

SIMIC and ATB: New Contract for Nuclear Components

28 Jul 2026
ATB Group alongside Union Brescia

ATB Group alongside Union Brescia

03 Mar 2026
ASME NPT certification

ASME NPT certification

27 Jan 2026
ISO 19443 certification

ISO 19443 certification

19 Jun 2025
Pizanรงon hydroelectric project awarded

Pizanรงon 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

News from Social

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Follow the latest news about ATB's activities on social media
News
23/09/2026

๐—”๐—ง๐—• ๐—ฅ๐—ถ๐˜ƒ๐—ฎ ๐—–๐—ฎ๐—น๐˜‡๐—ผ๐—ป๐—ถ ๐—ถ๐˜€ ๐—ถ๐—ป #๐—–๐—น๐—ฒ๐—ฎ๐—ป๐—–๐˜‚๐—ฟ๐—ฟ๐—ฒ๐—ป๐˜๐˜€๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ, ๐—ฃ๐—ต๐—ผ๐—ฒ๐—ป๐—ถ๐˜…, ๐—”๐—ญ!!

North Americaโ€™s largest event dedicated to #Waterpower and #GreenEnergy!

We look forward to meeting you and showing how our #turnkey #hydromechanical solutions support the future of #Hydropower, #PumpedStorage,…

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News
23/09/2026

๐—ง๐—ต๐—ฎ๐—ป๐—ธ ๐˜†๐—ผ๐˜‚ ๐˜๐—ผ ๐—ฒ๐˜ƒ๐—ฒ๐—ฟ๐˜†๐—ผ๐—ป๐—ฒ ๐˜„๐—ต๐—ผ ๐—ท๐—ผ๐—ถ๐—ป๐—ฒ๐—ฑ ๐˜๐—ต๐—ฒ ๐—ช๐—ฎ๐˜๐—ฒ๐—ฟ ๐—–๐—ผ๐—ป๐˜ƒ๐—ฒ๐˜†๐—ฎ๐—ป๐—ฐ๐—ฒ ๐—ฆ๐—ฒ๐—บ๐—ถ๐—ป๐—ฎ๐—ฟ ๐—ฎ๐˜ #๐—–๐—น๐—ฒ๐—ฎ๐—ป๐—–๐˜‚๐—ฟ๐—ฟ๐—ฒ๐—ป๐˜๐˜€๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ.
A special thank you to our colleague Paolo Zenocchini for presenting #ATBโ€™s paper "Site Fabrication of Large Diameter Penstocks: Capabilities, Processes, and Lessons Learned" and for sharing valuable…

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News
21/09/2026

Donโ€™t miss the opportunity to attend the Water Conveyance Seminar: A Focus on Penstocks and Gates at #CleanCurrents2026!

๐ŸŽฏ Our colleague Paolo Zenocchini will present the paper "Site Fabrication of Large Diameter Penstocks: Capabilities, Processes, and Lessons Learned".

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News
17/09/2026

๐—”๐—ง๐—• ๐—ฅ๐—ถ๐˜ƒ๐—ฎ ๐—–๐—ฎ๐—น๐˜‡๐—ผ๐—ป๐—ถ ๐˜„๐—ถ๐—น๐—น ๐—ฏ๐—ฒ ๐—ฒ๐˜…๐—ต๐—ถ๐—ฏ๐—ถ๐˜๐—ถ๐—ป๐—ด ๐—ฎ๐˜ #๐—–๐—น๐—ฒ๐—ฎ๐—ป๐—–๐˜‚๐—ฟ๐—ฟ๐—ฒ๐—ป๐˜๐˜€๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ!
Join us together with National Hydropower Association in Phoenix, AZ, from September 21-25, 2026, at the industryโ€™s top event to showcase the power of water.

Gianluca Raseni & Andrew Berselli will be there to show…

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News
28/07/2026

๐—” ๐— ๐—ฎ๐—ท๐—ผ๐—ฟ ๐— ๐—ถ๐—น๐—ฒ๐˜€๐˜๐—ผ๐—ป๐—ฒ ๐—ณ๐—ผ๐—ฟ ๐˜๐—ต๐—ฒ ๐—œ๐˜๐—ฎ๐—น๐—ถ๐—ฎ๐—ป ๐—ก๐˜‚๐—ฐ๐—น๐—ฒ๐—ฎ๐—ฟ ๐— ๐—ฎ๐—ป๐˜‚๐—ณ๐—ฎ๐—ฐ๐˜๐˜‚๐—ฟ๐—ถ๐—ป๐—ด ๐—ฆ๐˜‚๐—ฝ๐—ฝ๐—น๐˜† ๐—–๐—ต๐—ฎ๐—ถ๐—ป

๐—ฆ๐—œ๐— ๐—œ๐—– and ๐—”๐—ง๐—• are proud to announce the award of a contract for the manufacturing of key components for an ๐—”๐—ฆ๐— ๐—˜ ๐—ฆ๐—ฒ๐—ฐ๐˜๐—ถ๐—ผ๐—ป ๐—œ๐—œ๐—œ ๐—ฐ๐—ผ๐—ป๐˜๐—ฎ๐—ถ๐—ป๐—บ๐—ฒ๐—ป๐˜ ๐˜ƒ๐—ฒ๐˜€๐˜€๐—ฒ๐—น supporting a major nuclear programme, the details of which remain…

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News
21/07/2026

Servizio Rai su ATB Riva Calzoni

La Rai accende i riflettori su ATB Riva Calzoni: la nostra storia, i traguardi, le sfide e le opportunitร  del settore Nucleare nel servizio dedicato alla filiera italiana.

https://www.rainews.it/tgr/lombardia/video/2026/07/brescia-azienda-nucleare-2cbd75bd-ff59-44cb-b219-56ab9a8d0772.html

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News
26/06/2026
HE

ATB in the France-Italy Economic Forum

ATB Riva Calzoni among the key players in Italy-France industrial cooperation for the future of European energy.

ATB took part in the first edition of the France-Italy Economic Forum, held in Le Cannet alongside the Antibes intergovernmental summit between French President Emmanuel…

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News
23/06/2026
HE

Participated in the Italianโ€“Polish Nuclear Supply Chain Meeting

On June 22โ€“23, ATB Riva Calzoni participated in a key initiative aimed at strengthening industrial cooperation between Italy and Poland in the nuclear sector, promoted by the Italian Chamber of Commerce and Industry in Poland in collaboration with AIN and IGEOS, with the support of AIPE.

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News
08/06/2026
HE

Exhibiting at Nuclear Power Expo

๐ŸŒ ๐—ก๐˜‚๐—ฐ๐—น๐—ฒ๐—ฎ๐—ฟ ๐—ฃ๐—ผ๐˜„๐—ฒ๐—ฟ ๐—˜๐˜…๐—ฝ๐—ผ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ ๐—ธ๐—ถ๐—ฐ๐—ธ๐˜€ ๐—ผ๐—ณ๐—ณ ๐˜๐—ผ๐—บ๐—ผ๐—ฟ๐—ฟ๐—ผ๐˜„!
Join us at Hall 2, Booth R67 to learn more about our solutions and discuss the opportunities ahead.

We look forward to meeting you there!

#Nuclear #NuclearEnergy #ATBRivaCalzoni #ATBGroup #NPE2026 #NuclearPowerExpo

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News
29/05/2026
HME

Exhibiting at Big Small Hydro 2026

๐ŸŒŽ ATB Riva Calzoni will participate in #BigSmallHydro 2026, scheduled for June 10โ€“11, 2026, at Centro de Eventos El Tesoro in #Medellรญn, #Colombia, at Booth 10.

Explore our expertise in #HydromechanicalEquipment, including #Gates, #Trashracks, #Valves and #SteelPenstocks for #Dams,…

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News
28/05/2026
HE

Visita studenti delย Master Corporate Technologies for Nuclear Power Plants

Abbiamo recentemente ospitato presso la nostra sede i partecipanti del Master Corporate Technologies for Nuclear Power Plants, frutto della collaborazione tra il Politecnico di Milano e Ansaldo Nucleare, accompagnati dallโ€™Ingegnere Michele Iamele e dallโ€™Ingegnere Eugenio Rivara.

Un…

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News
26/05/2026
HME

Inย ICOLD 2026

Come and visit us at Booth 204!

ATB Riva Calzoni team is ready to welcome you at #ICOLD2026 โ€“ #Guadalajara to discuss your projects and show you our #hydromechanical solutions in action.

We look forward to meeting you!

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๐Ÿ‡ฒ๐Ÿ‡ฝ…

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News
09/05/2026
HME

Exhibiting at ICOLD 2026

๐ŸŒŽ ATB Riva Calzoni will be present at the 94th Annual Meeting of the International Commission on #LargeDams 2026 #ICOLD2026 at Expo Guadalajara, Mรฉxico, at Booth 204. May 25 to 28, 2026.

Discover our solutions in #HydromechanicalEquipment, including #Gates, #Trashracks, #Valves,…

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News
08/05/2026
HME

In Power of water 2026,ย Niagara

#PowerofWater2026 #Canada
Meet us at Booth 20 and connect with ATB Riva Calzoni to learn more about our hydromechanical solutions for #Hydropower and #PumpedStorage projects.

#ATBRivaCalzoni #POWC2026 #OWA #Waterpower #RenewableEnergy #engineering #atbgroup #ATB #Hydromechanical…

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News
02/05/2026
HME

Exhibiting atย Power of water 2026

Weโ€™re excited to announce that ATB Riva Calzoni will be exhibiting at OWAโ€™s Power of Water Canada Conference and Trade Show 2026 (#POWC2026), taking place May 6โ€“8, 2026, in Niagara-on-the-Lake, Ontario.

๐Ÿ“ Meet us at Booth #20 to explore our experience in turn key supply of #HydromechanicalEquipment…

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News
13/03/2026
HME

Global Gateway Hydropower Dialogue โ€“ Brussels

We are pleased to share that #ATBRivaCalzoni is attending today the #GlobalGateway Hydropower Dialogue in Brussels.

๐Ÿ“ Our colleague Stefano Lazzaro is participating on behalf of #ATB, joining EU institutions, Team Europe actors and industry representatives to exchange views on…

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News
10/03/2026
GROUP

In prima linea, con lโ€™Union Brescia

Sempre in prima linea, anche a bordo campo! โšฝ

ATB Group, insieme a ATB Riva Calzoni e SEMAT Edilizia e servizi Industriali, scende in campo con lโ€™Union Brescia. Sosteniamo con orgoglio la forza e la passione dello sport bresciano, perchรฉ le grandi sfide si vincono solo se si fa…

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News
05/03/2026
HME

Koysha Hydropower Project

Koysha Hydropower Project (2.160 MW): Installation Update

Progress continues at the Koysha Hydropower Project!
Our team has successfully completed the installation of the first two lower elbows of the #SteelPenstocks (10m diameter), marking an important advancement within…

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News
03/03/2026
GROUP

ATB Group al fianco di Union Brescia: Insieme verso nuovi traguardi

ATB Group al fianco di Union Brescia: una partnership nata dalla forte condivisione di valori quali impegno, determinazione, spirito di squadra e radicamento nel territorio.

In ATB Group, crediamo infatti che l'eccellenza non sia solo il risultato di grandi progetti industriali,…

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News
27/01/2026
GROUP

ASME NPT certification

๐ŸŽฏ ATB RIVA CALZONI achieves ASME NPT certification
We are proud to announce that ATB RIVA CALZONI has obtained the ASME NPT Certificate of Authorization, a key requirement for the manufacturing of critical components for the nuclear island, designed in accordance with ASME Section III…

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News
24/12/2025
GROUP

Buone Feste ๐ŸŽ„โœจ

Con i migliori auguri di Buone Feste dalla Direzione di ATB GROUP,
unitamente ai propri collaboratori.

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Our best Wishes for a Merry Christmas and a Happy New Year ATB GROUP Management and all the Staff.

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News
19/12/2025
HME

Hydromechanical equipmentย for the Trojena project

We are proud to be involved in the #Trojena project, an ambitious development that requires advanced #Engineering solutions and strong industrial capabilities.

#ATBRivaCalzoni โ€™s participation confirms our experience in supporting complex infrastructure projects where #Quality,…

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News
11/12/2025
HE

Partecipazione al convegno โ€œNucleare in Italia: dal dire al fareโ€

โœจ ATB Riva Calzoni al convegno โ€œNucleare in Italia: dal dire al fareโ€ organizzato da Associazione Italiana Nucleare (AIN)

Siamo orgogliosi di aver partecipato allโ€™evento che ha riunito istituzioni, aziende e rappresentanti della filiera per discutere il futuro dellโ€™Energia Nucleare…

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News
27/11/2025
HME

Attending the British Hydropower Association Annual Conference

๐Ÿ“† We are pleased to confirm our attendance as delegates at the #BritishHydropowerAssociation Annual Conference, Exhibition & Dinner, taking place on 2โ€“3 December 2025 in Glasgow.

๐Ÿ“ Our colleague Stefano Lazzaro will participate on behalf of #ATBRivaCalzoni, joining industry leaders…

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News
21/11/2025
HME

Koysha Hydroelectric Project (2,160 MW): Installation in Progress ๐Ÿ—๏ธ

๐Ÿ’ฆ Proud to contribute to one of #Ethiopia โ€™s most significant #RenewableEnergy projects with #EEP (Ethiopian Electric Power).

Our #TurnKey supply includes the full hydromechanical equipment package and #Large-scale #SteelPenstocks (10m in diameter).

Currently,…

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News
11/11/2025

Attending the NZSOLD ANCOLD Conference 2025

ATB Riva Calzoni at the NZSOLD ANCOLD Conference 2025!

๐Ÿ“ We are excited to announce our participation in the #NZSOLD #ANCOLD Conference, taking place from 19โ€“21 November 2025 at the Te Pae Christchurch Convention Centre, ลŒtautahi Christchurch, New Zealand.

This international…

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News
08/11/2025

A Domani Lavoro 2025

Oggi si รจ conclusa Domani Lavoro 2025!
Grazie a tutti coloro che si sono fermati al nostro stand per conoscerci e scoprire di piรน sul nostro mondo. รˆ stato un piacere incontrarvi!

#DomaniLavoro #Recruitment #Networking #ATBRivaCalzoni #hydro #nuclear #energy

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News
06/11/2025
HE

In World Nuclear Exhibition 2025

ATB Riva Calzoni at the World Nuclear Exhibition 2025

๐Ÿ“ From November 4th to 6th, we had the pleasure of participating in the World Nuclear Exhibition (WNE 2025) in Paris, an event that confirmed the vibrant and forward-looking atmosphere surrounding the nuclear energy sector.

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News
28/10/2025
HE

Franceโ€“Italy Nuclear Sector Meeting

๐Ÿ‡ซ๐Ÿ‡ท Cโ€™est un honneur pour nous dโ€™avoir รฉtรฉ conviรฉs par Son Excellence M. Martin Briens, Ambassadeur de France en Italie, ร  une rรฉunion rรฉunissant les principaux reprรฉsentants des secteurs nuclรฉaires franรงais et italien.

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๐ŸŒ Honoured for the invitation of his Excellency…

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News
23/10/2025
HME

Attending the HYDRO 2025 Conference

Enjoying attending the #HYDRO2025 Conference in Thessaloniki, Greece, and presenting our paper on gate operation in cold climates.

#ATBRivaCalzoni #ATBGroup #Hydropower #Energy #HydroMechanicalEquipment #Dams #Gates #Engineering #Innovation #PumpedStorage #CleanEnergy

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