Latest News

DRASS at Defence Commission in Rome

Sergio Cappelletti of DRASS was invited back to a second hearing at the Italian Parliament in Rome by the Parliamentary Defence Commission. Chaired by President of the Defence Commission, Honourable Antonino Minardo, DRASS capabilities for national defence in light of current and future requirements were presented.


In Livorno this week, the Naval Academy hosted the 9th workshop “Ugo Tiberio” attended by the Chief of Italian Navy Admiral Enrico Credendino, other high ranking Navy officers, and representatives of the main defence corporations. This workshop hosts a ceremony awarding scholarships to young technical officers of innovative studies, and also includes a full programme...

Commissioning Closure Technical Meeting

DRASS had the pleasure of receiving Dongil Shipyard team and Hanwha Ocean representatives at DRASS headquarters to discuss the final steps of the DRASS Diving System that has been successfully installed onboard the Korean Navy’s new ASR-II submarine rescue ship. DRASS team of experts are currently supporting the shipyard during this most critical phase of...

SDO-SuRS Deployable Assets Training for Submarine Rescue Navy Operators now ongoing

The SDO-SuRs RESCUE SUBMARINE and INTERVENTION Systems training for Navy Divers and Technicians is now underway. Its inauguration was opportunity for DRASS course trainer Giuseppe Campo (ILS Manager) and Marco Bellomo (DRASS Technical Director) to make introductions and become acquainted with the new participants. Selected from the Italian Navy, inside the Gruppo Operativo Subacquei of...

Vizita la Drass Romania

EN The highest-ranking delegation of the Romanian Navy lead by Chief of the Romanian Navy, Vice Admiral, Mihai Panait, visited DRASS Romania for a tour of our production facilities currently fully occupied with an ongoing production line for the defence industry. We had the pleasure to present DRASS defence range and in particular the DS...


The Kick-Off Meeting between DRASS and UTNAV (Territorial Technical Office for naval construction and armament) relevant to the new SDO-SuRS (Special and Diving Operations - Submarine Rescue Ship) project took place at DRASS. The delegation was composed by Captain Daniele Bianchi, Commander Patrizio Perin, Commander Filippo Pontil, Lieutenant Commander Florenzo Mastro, and their technical assistants....

DRASS at CRF – Coordinator of Rescue Forces Course 2023

DRASS was invited by ISMERLO and the Italian Navy to attend the fourth edition of the CRF (Coordinator of Rescue Forces) training course in Taranto. The lesson held by DRASS Program manager Davide D’Alessio (former Italian Navy Submariner) was dedicated and focused on the new generation Submarine Rescue and Intervention System, under development and production for the Italian Navy named S.A.V.E.R.....


DRASS is happy to share pictures and a summary report from the D-ONE Diving Helmet Workshop held in Guarujá, Brazil. With the participation of 43 military divers from the State of São Paulo GBMAR Fire Department, the workshop focused on the presentation and use of the D-ONE followed by practical sessions in the water. All...

Why tethered connection is the safe approach for sea bottom missions

We have previously analyzed the overall events involving OceanGate, with particular focus on the design and manufacturing of Titan’s pressure hull. This article explores the optimal approach for deep diving operations to the sea bottom, given what subsea technology can actually offer. A submarine or a bathyscaph? Vehicles transporting people subsea have a variety of...

Titan’s pressure hull:
Considerations and potential causes of failure

Author: Alessandro Garzelli, DRASS Defence Design Mechanical Coordinator Why the pressure hull is key in the design of manned underwater equipment In the design of a manned subsea vehicle, there are many factors to be considered. The most significant factors include its life support system and gas analysis, propulsion navigation, launch and recovery, communication, trim...


Continuously active since 1927 with the Galeazzi business line, Drass has extensive experience in manned underwater technology, establishing the world record for deep diving immersion with an atmospheric diving suit in 1937.
The company is now international leader in commercial diving, medical hyperbarics, midget and compact submarines, and vehicles for special forces.

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Our Solutions

Drass is the leading company in Submarine Rescue thanks to its comprehensive range of solutions including design for turnkey submarine rescue ships, submarine rescue systems.

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With nearly a century of tradition and continuous activity, Drass is a recognized world leader in commercial and defence subsea operation solutions.

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DRASS currently has the most advanced and reliable range of hyperbaric oxygen therapy products, thanks to its focus on research and development, engineering production and materials technology. Drass designs, manufactures and tests all components in accordance with class certification.

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Drass since 1927 the historic leader in the deep diving industry, innovative, safe and cost-efficient systems and equipment, in compliance with the highest industry standards.

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Drass has extensive experience in manned underwater technology, establishing the world record for deep diving immersion with an atmospheric diving suit in 1937.

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Latest Events

DRASS promotes local children’s charity event

DRASS promotes local children's charity event The "Derby delle Stelle(tte)" charity event, organized by the Italian Naval Academy, took place on 3 March 2023 at Modigliani Sports Stadium in Livorno. This friendly match between local basketball teams "Libertas Livorno 1947" and "Pielle Livorno”, saw teams go head-to-head until the final score in a tournament dedicated...

Mariotti-DRASS contract with the Italian Navy for the supply of a saturation diving system and diving simulator for the submarine rescue unit of the new SDO-SuRS (Submarine Rescue Ship)

English version Genoa, 20 February 2023 The new SDO-SuRS (Special and Diving Operations - Submarine Rescue Ship) unit is the response of the Navy and the national shipbuilding industry to support special operations, underwater operations, and the rescue of distressed submarines, as well as the growing need to protect vital underwater infrastructure in the Mediterranean...

DRASS Christmas Dinners 2022

DRASS Group is happy to share some pictures from our company Christmas dinners in Italy and Romania. During the evening, all our staff spent a wonderful time together, with great food and wine, great music, and of course excellent company! Happy Holidays and best wishes from everyone at DRASS!

D-ONE Diving Helmet Open Day

D-ONE Diving Helmet Open Day held at DRASS headquarters on 2nd September was a resounding success. Participants, professional divers from various sectors, contributed to making this event extremely interesting. All had the opportunity to test the new D-ONE in the water, appreciating its performance and excellent functionality. They were impressed by its ergonomic design, superior...

TVR News Romania Exclusive

DRASS shares an exclusive report aired in March on TVR News Romania. During the news special, Romanian National Defence Minister Vasile Dîncu discusses the opportunity of DRASS compact submarines for the Romanian Navy as well as international export from Romania to other navies. A tour of DRASS Timișoara production facilities with Operational Director Cristina Stănciulescu...

DRASS at Livorno townhall

DRASS had the pleasure of being hosted by the Mayor of Livorno, Mr. Luca Salvetti, at Livorno townhall. During the visit, DRASS personnel presented the D-ONE Diving Helmet that was selected at national level to showcase the best of Italian technological innovation and design at the G20 Summit in Rome. The visit was an opportunity...

Indonesian Navy in DRASS

DRASS had the honor of receiving the delegation from the Indonesian Navy. During this visit the commission were especially interested to tour the historical gallery of DRASS’ world-first innovations spanning a century, followed by a tour of the various production facilities for a glimpse of our latest projects and cutting-edge technology. DRASS Group thanks our...

Visita della Dottoressa Riccardi, Direttore del V Reparto Innovazione Tecnologica del Segretariato Generale della Difesa e Direzione Nazionale degli Armamenti

DRASS ringrazia per la gradita visita della Dottoressa Riccardi, Direttore del V Reparto Innovazione Tecnologica del Segretariato Generale della Difesa e Direzione Nazionale degli Armamenti, svoltasi nell’ambito dell’ attività di missione finalizzata alla firma dell’accordo con il NATO Science and Technology Organisation - Centre for Maritime Research and Experimentation (STO- CMRE) per la cooperazione nell’ambito...

DRASS at ADI Design Index 2020-2021

DRASS was thoroughly honoured to be selected to be a part of the ADI Design Index 2020-2021, the annual exhibition that has championed the best of Italian design since 1956. Each year ADI (Association for Industrial Design) identifies the best Italian design in production, selected by the ADI Permanent Design Observatory. This year the prestigious...

Admiral Biaggi – Naval Academy Commander

DRASS was very pleased to welcome Admiral Flavio Biaggi, Commander of Italy’s Naval Academy located in Livorno. The visit that included a tour of Production facilities was yet another opportunity to introduce DRASS state-of-the-art technologies that are at the heart of navy projects. DRASS Group thanks Admiral Biaggi for his visit.