Name

DTT Divertor Tokamak Test facility

Legal name

DTT S.c. a r.l.

Website

https://dtt-project.it

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Fusion Energy Research Infrastructure

NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing (3336)

SIC

Services-Commercial Physical & Biological Research (8731), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

HVDC Converter Stations & HVDC Transmission EPC (EUAEABAD)

akta.pro secondary industries

Grid Interconnection & Collector Substation EPC (Utility-Scale Renewables) (EUAEABAK), Commissioning, testing & energization services (HVT, relay testing, SAT) (EUADAKAE)

Keywords

• Fusion energy research
• Magnetic confinement tokamak
• Superconducting magnet systems
• Plasma heating systems
• Divertor heat exhaust

Headquarters

HQ city

Frascati

HQ country

Italy

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Technology or R&D, Infrastructure, Personnel, Operations, Supply Chain

Revenue model

1. Public Research Funding: DTT is primarily funded by national and private investment exceeding €600 million. Main funding sources include ENEA (including EU loan), Italian ministries, the European 'National Recovery and Resilience Plan' (PNRR), and Lazio Region. This is a research infrastructure — revenue is not generated from commercial operations.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

DTT operates a fully superconducting tokamak fusion experiment designed to investigate alternative heat-exhaust solutions for future fusion power plants. The facility provides a research infrastructure for testing advanced divertor configurations, plasma-material interactions, and materials under power-plant-relevant conditions, addressing the heat-exhaust challenge identified as the critical bottleneck on the path to DEMO. It supplies scientific and technological data to the EUROfusion, ITER, and DEMO programs through dedicated experimental campaigns.

Product overview

DTT S.c. a r.l. operates the Divertor Tokamak Test (DTT) facility, a major fusion research infrastructure being constructed at the ENEA Research Centre in Frascati, Italy. The core offering is the DTT tokamak itself—a fully superconducting magnetic confinement fusion device designed to develop innovative heat exhaust solutions for future fusion power plants. Supporting the tokamak are specialized subsystems including the HYRMAN robotic arm and CMM cassette mover for remote handling operations, and the NAS power supply system for coil control. The facility leverages superconducting magnet technology (Nb₃Sn and NbTi cables at 4.5 K), multiple plasma heating systems (ECRH at 170 GHz, ICRH, and neutral beam injection totaling 45 MW), and advanced tungsten divertor components. DTT serves as a strategic link between the ITER experimental reactor and the DEMO demonstration power plant on the European fusion roadmap.

Differentiator

Problem solved

Functional benefit

Products and services

• DTT — Divertor Tokamak Test Facility A fully superconducting tokamak fusion experiment under construction at ENEA Frascati Research Centre in Italy. The D-shaped vessel is 10 m tall with a 5 m radius, containing approximately 30 m³ of plasma at temperatures exceeding 100 million °C with a current of about 6 MA and thermal loads up to ~10 MW/m². The facility is designed to explore innovative solutions for heat extraction from fusion plasmas, addressing the heat-exhaust challenge for future fusion power plants and serving as a strategic link between ITER and DEMO.
• HYRMAN (Hyper Redundant Manipulator) A robotic arm with 12 degrees of freedom designed to operate inside the DTT vacuum vessel, handling loads up to 350 kg with sub-millimeter precision for first wall module replacement. Developed by OCIMA S.r.l. for remote handling in the high-vacuum, high-radiation environment of the fusion reactor.
• CMM (Cassette Multifunctional Mover) A robotic system designed to install and replace divertor cassettes — steel components weighing up to 400 kg — inside the DTT reactor. Developed by OCIMA S.r.l. as part of the remote handling systems for the fusion facility, operating in extreme high-vacuum conditions with very high reliability requirements.
• NAS (Non-Axially Symmetric) Power Supply System Power supply system designed to provide energy for 27 coils installed inside the DTT vacuum vessel, enabling precise real-time correction of plasma instabilities. The system delivers over 60 tons of electronic equipment, manufactured by EEI S.p.A., capable of reaching 2,500 A and 400 V on each of the 27 coils.

Quantifiable outcome

• P/R ratio (power flowing to divertor / major radius) similar to ITER and DEMO — demonstrating DTT operates at conditions relevant for DEMO design
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

24 partnerships are on record, tiered major and core.

• MEXT (Japan Ministry of Education, Culture, Sports, Science and Technology)majorStrategic or Co-development Partner · 1 June 2026An official delegation from Japan's MEXT, led by Dr. KAKITA Yasuyoshi (Vice-Minister for Policy Coordination), visited DTT and ENEA Frascati Research Centre on June 23, 2026. The visit included tours of fusion research laboratories and DTT facilities. Discussions explored future collaboration opportunities in fusion energy research between Italy and Japan.
• CETMA (Centro di Ricerche europeo di Tecnologie Design e Materiali)coreStrategic or Co-development Partner · 1 November 2022CETMA joined DTT in November 2022, contributing expertise in materials science, design, and technologies. Through CETMA, Università del Salento is involved in the project. CETMA supports DTT's materials research for plasma-facing components and structural materials.
• CNR (Consiglio Nazionale delle Ricerche)coreStrategic or Co-development Partner · 1 December 2021CNR joined DTT in December 2021 as a national research institution member. CNR brings broad multidisciplinary research capabilities across physics, materials science, engineering, and environmental science, supporting DTT's diverse research needs.
• Consorzio RFXcoreStrategic or Co-development Partner · 1 January 2021Consorzio RFX (hosted at IGI — Istituto Gas Ionizzati, Padova) joined DTT in January 2021. Through RFX, Università di Padova is involved in the project. RFX contributes expertise in plasma physics, control systems, and magnetic confinement technology, including experience from the RFX-mod experiment.
• INFN (Istituto Nazionale di Fisica Nucleare)coreStrategic or Co-development Partner · 1 January 2021INFN joined DTT in January 2021 as a national research institution member. INFN contributes expertise in particle physics instrumentation, detector technology, and large-scale scientific infrastructure development, strengthening DTT's capabilities in plasma diagnostics and measurement systems.
• ENEA (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile)coreStrategic or Co-development Partner · 1 January 2019ENEA is the founding member (2019) and main host institution of DTT. The project is located at the ENEA Frascati Research Centre. ENEA provides the main source of financing including through a loan from the European Union, and contributes scientific and technical expertise across all aspects of the DTT project including superconductivity, plasma physics, and diagnostics.
• Consortium CREATE (Consorzio di Ricerca per l'Energia, l'Automazione e le Tecnologie dell'Elettromagnetismo)coreStrategic or Co-development Partner · 1 January 2019Consortium CREATE (hosted at Università di Napoli Federico II) is a founding member of DTT S.c. a r.l. (2019). Through CREATE, several additional universities are involved in the project including Università della Basilicata, Università della Campania, Università di Cassino e del Lazio Meridionale, Università di Napoli Federico II, and Università di Napoli Parthenope. CREATE contributes expertise in computational modeling and electromagnetic technologies.
• Politecnico di TorinomajorStrategic or Co-development PartnerPolitecnico di Torino is a university member of DTT, contributing expertise in engineering, applied physics, and materials science. The university participates in research programs related to the DTT project and provides training for students and young researchers.
• Università degli Studi di Milano-BicoccamajorStrategic or Co-development PartnerUniversità di Milano-Bicocca is a university member of DTT, contributing research expertise in physics and engineering disciplines relevant to fusion science and tokamak technology.
• Università degli Studi di Roma Tor VergatamajorStrategic or Co-development PartnerUniversità di Roma Tor Vergata is a university member of DTT, contributing expertise across physics and engineering disciplines relevant to the DTT project's scientific objectives.
• Università degli Studi della TusciamajorStrategic or Co-development PartnerUniversità della Tuscia is a DTT member university contributing to the project's research activities and providing educational opportunities for students within the DTT framework.
• EUROfusioncoreStrategic or Co-development PartnerDTT is included in the EUROfusion European fusion roadmap and is partially supported by EUROfusion, the European consortium for scientific fusion research activities. EUROfusion coordinates fusion research across European laboratories and DTT is positioned as the main European tokamak to operate in parallel to ITER and prepare for DEMO design.
• OCEM Power ElectronicsmajorTechnology or IntegrationOCEM Power Electronics (Bologna, Italy) manufactures power supply systems for DTT, including the divertor coil power supplies (3 independent units, 5,000 A at 500 V, 10 Hz) and the toroidal field power supply systems. OCEM is part of a consortium with SyES Srl for the development of solid-state RF generators for the ICRH system (1.2 MW nominal, 60-90 MHz).
• ICAS srlmajorTechnology or IntegrationICAS srl (building on ENEA's long-standing expertise in superconductivity) produces Nb₃Sn superconducting cables for DTT's toroidal field coils. By end of 2025, ICAS had produced and delivered 80 superconductors (over 200 m long each, 420 Nb₃Sn strands and 180 copper strands) for 16 TF coils. 12 of 95 unit lengths of superconducting cable for TF coils produced.
• ASG Superconductors SpAmajorTechnology or IntegrationASG Superconductors SpA (La Spezia, part of the Malacalza Group) winds and assembles the TF coils at its facility. Five winding packs are assembled and epoxy-impregnated for each D-shaped coil. ASG is also assembling the winding line for TF coil production. ASG is one of the companies involved in ITER (60% of European high-tech component orders).
• ThalesmajorTechnology or IntegrationThales is producing the 170 GHz/1 MW gyrotrons for DTT's ECRH (Electron Cyclotron Resonance Heating) system. The pre-series gyrotron acceptance test was completed in November 2023, reaching a major milestone in February 2026. A batch of 16 gyrotrons planned for first phase operations and another 16 for the second phase.
• OCIMA S.r.l.majorTechnology or IntegrationOCIMA S.r.l. (Caivano, near Naples, founded 1991) designs and builds two remote handling robotic systems for DTT: HYRMAN (Hyper Redundant Manipulator, 12 degrees of freedom, 350 kg payload, sub-millimeter precision) and CMM (Cassette Multifunctional Mover, for 400 kg divertor cassettes), operating in high vacuum conditions inside the DTT reactor.
• EEI S.p.A.majorTechnology or IntegrationEEI S.p.A. (Vicenza, Italy) manufactured the 60-ton NAS (Non Axially Symmetric) power supply system for 27 coils inside the DTT vacuum vessel, with demonstrated capability of 2,500 A and 400 V per coil. Realized based on experience from the JT-60SA experiment in Japan. Procurement funded under PNRR.
• De Pretto Industries SpAmajorTechnology or IntegrationDe Pretto Industries SpA supplies the stainless-steel casings for the toroidal field coils. The casings are integrated into the TF coil manufacturing process after winding and heat treatment at ASG Superconductors.
• KAT (Korean company)majorTechnology or IntegrationKAT produced the Nb₃Sn superconducting strand for DTT's toroidal field coils. The strand production has been completed as part of the superconducting materials supply chain.
• FurukawamajorTechnology or IntegrationFurukawa produced the NbTi superconducting strand for DTT's poloidal field coils PF2-PF5. The strand production has been completed as part of the superconducting materials supply chain.
• JEMAmajorTechnology or IntegrationJEMA constructs the toroidal field power supply systems for DTT as part of the electrical infrastructure for the tokamak.
• SyES SrlmajorTechnology or IntegrationSyES Srl forms a consortium with OCEM Power Electronics for the development of fully solid-state, high-power RF generators for DTT's ICRH system. Each generator operates at 1.2 MW nominal power in the 60-90 MHz frequency range. Factory acceptance tests on RF combiner stages completed December 2025.
• SIMICmajorTechnology or IntegrationSIMIC produced the prototype of the toroidal field casing for DTT as part of the mechanical structure supporting the superconducting coils. SIMIC is one of the Italian companies involved in ITER high-tech component supply.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Market position

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/dtt-project
• Instagraminstagram.com/dtt_divertortokamaktest

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about DTT Divertor Tokamak Test facility