What Theva does

Theva (legal name THEVA Dünnschichttechnik GmbH) is a Germany-based manufacturer of second-generation (2G) high-temperature superconductor (HTS) wire, founded in 1996 as a spin-off of the Technical University of Munich and headquartered in Ismaning near Munich. The company produces THEVA Pro-Line, a REBCO (Rare-earth Barium Copper Oxide) coated conductor tape that transports more than 200 times the current of copper through the same cross-section with near-zero loss, using proprietary processes including Inclined Substrate Deposition (ISD), Artificial Pinning via embedded nanoparticles, and a non-contact TAPESTAR quality inspection system. Beyond wire, Theva builds superconducting coils up to 1.4 m in diameter and sells DEMO-KIT educational demonstrators, addressing applications in motors and generators (e.g., wind turbines), electricity transmission cables, magnet technology (MRI, fusion, accelerators), and energy-intensive industrial uses such as aluminum billet heating.

Theva operates a direct sales model from Germany, augmented by authorized sales partners in the USA, Japan, Korea, Taiwan, and China, selling primarily via quote-based B2B contracts to enterprise customers in energy, research, MedTech, and heavy industry. Revenue is generated through hardware sales of wire, coils, and TAPESTAR measurement devices, supplemented by project participation in EU-funded consortia (EcoSwing, Best Paths, FastGrid, SuperLink, HTS4Fusion, FILAMENTS4FUSION). The company is ISO 9001:2015 certified, runs its production on renewable energy since 2015, and has raised multiple venture rounds from Target Partners, BayBG, eCAPITAL, Bayern Kapital, and EnBW New Ventures, totaling roughly €24M+ disclosed. In April 2026, Theva was acquired by Danish deep-tech company Subra as part of Subra's €40M Series A led by Novo Holdings, forming an integrated European superconducting platform combining Theva's wire manufacturing with Subra's cable technology.

Name

Theva

Legal name

THEVA Dünnschichttechnik GmbH

Website

https://theva.com

Company type

Private

Founded year

1996

Operating status

Acquired

Headcount range

51–100 employees

Short description

Theva is a Germany-based manufacturer of second-generation (2G) REBCO high-temperature superconductor wire, coils, and TAPESTAR quality-control devices, serving enterprise customers in wind energy, grid transmission, medical imaging, industrial heating, and fusion research; acquired by Subra in April 2026.

Ownership category

akta.pro rank

Product category

High-temperature superconductor wire

NAICS

Communication and Energy Wire and Cable Manufacturing (33592), Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Electrical Equipment Manufacturing (3353)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Industrial Power Cable (MV/HV) (IMADAMAB)

akta.pro secondary industries

HVDC Cables & Overhead Lines (Subsea, Underground, Overhead) (EUADAMAB), HVDC Converter Stations & HVDC Transmission EPC (EUAEABAD)

Keywords

• High-temperature superconductor wire
• HTS coated conductor manufacturing
• Superconducting coil production
• Tape quality measurement systems
• REBCO conductor technology

Headquarters

HQ city

Ismaning

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D

Revenue model

1. HTS Wire Sales: Sale of THEVA Pro-Line high-temperature superconductor wire, the company's primary product. Sold directly to manufacturers of cables, power electronics, industrial drives, and busbars for processing into end applications.
2. Superconducting Coils: Production and sale of HTS coils in different shapes and sizes, developed and produced in cooperation with competent partners. Maximum coil size currently 1.4m (4'7").
3. TAPESTAR Measurement Devices: Sale of TAPESTAR quality control systems for quality inspection of superconducting tape, including TAPESTAR XL, TAPESTAR XL-HF (high-field), and TAPESTAR XL-W (wide tape).
4. DEMO-KIT Educational Products: Cooperation with Quantum Experience Ltd. for superconductor experiment kits for schools, universities and educational institutions using THEVA Pro-Line HTS wire.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels4 records

Core offering

THEVA manufactures and sells second-generation (2G) high-temperature superconductor (HTS) wire under the THEVA Pro-Line brand, based on REBCO coated conductor technology produced via its proprietary Inclined Substrate Deposition process. The company also produces superconducting coils manufactured from this wire, TAPESTAR non-contact quality measurement devices for coated conductors, and DEMO-KIT educational superconductor experiment kits, serving cable manufacturers, power utilities, motor/generator makers, MRI manufacturers, and research institutions.

Product overview

THEVA is a Germany-based manufacturer of second-generation (2G) high-temperature superconductor (HTS) wire, producing THEVA Pro-Line as its core product along with superconducting coils manufactured from its wire. The company also offers TAPESTAR, a quality control device for superconducting tape inspection. THEVA's products serve applications in wind turbine generators, electricity transmission cables, magnet technology for MRI systems, industrial bus bars, and fusion energy research. The company operates from Ismaning, Germany and became part of Subra group in 2026.

Differentiator

Problem solved

Functional benefit

Brands

• THEVA Pro-Line: High temperature superconductor (HTS) wire product line with extremely high current carrying capability and power densities for various applications.
• TAPESTAR

Products and services

• THEVA Pro-Line HTS Wire Second-generation (2G) high-temperature superconductor (HTS) wire based on REBCO coated conductor technology, transporting more than 200 times the current of copper through the same cross-section with practically no power loss. Sold as raw material to manufacturers of cables, power electronics, industrial drives, and busbars, and as a base material for THEVA's superconducting coils.
• Superconducting Coils HTS coils manufactured in different shapes and sizes following the 'coil follows design' principle, with maximum size currently at 1.4 meters (4'7"). Used in wind turbine generators, industrial magnetic heaters, MRI systems, and research magnets; developed and produced in cooperation with competent partners including Karlsruhe Institute of Technology.
• TAPESTAR Measurement Devices Non-contact quality management and measurement systems for coated conductors, including TAPESTAR XL, TAPESTAR XL-HF (high-field), and TAPESTAR XL-W (wide tape). Produces continuous scans of critical current along superconducting tape with millimeter resolution, detecting local faults and non-uniformities in the superconducting coating.
• DEMO-KIT Educational Experiment Kits Superconductor experiment kits manufactured by Quantum Experience Ltd. in cooperation with THEVA, using THEVA Pro-Line HTS wire to demonstrate magnetic levitation for schools, universities, and educational institutions under the 'Quantum Levitation' brand.

Quantifiable outcome

• 40% weight reduction in wind turbine generators
• +5 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

17 partnerships are on record, tiered flagship, core and minor.

• SubraflagshipStrategic or Co-development Partner · 10 April 2026Subra, a Danish deep-tech company, acquired THEVA in April 2026 through a €40M Series A funding round led by Novo Holdings with co-investors Maj Invest and SPRIND. The acquisition combines THEVA's manufacturing capabilities and material science with Subra's superconducting cable technology to create a fully integrated European platform for advanced superconducting solutions.
• Max-Planck-Institute for Plasma Physics (IPP)coreStrategic or Co-development PartnerHTS4Fusion project partner starting 2025. Three-year collaboration to develop cutting-edge advancements in high-temperature superconductors for compact fusion technology. Focus on JANUS composite HTS conductor and innovations in HTS coating technology.
• Technical University of Munich (TUM) - FRM IIcoreStrategic or Co-development PartnerHTS4Fusion project partner starting 2025. Collaboration with TUM's Forschungs-Neutronenquelle Heinz Maier-Leibnitz for fusion technology research.
• Proxima FusionflagshipStrategic or Co-development PartnerTHEVA is proud member of Alpha Alliance supporting development of Alpha fusion reactor, Europe's industrial bridge from fusion research to commercial deployment. Landmark collaboration with Proxima Fusion and fellow Alliance members.
• SUBRA A/SflagshipStrategic or Co-development PartnerDanish industrial partner in FILAMENTS4FUSION project. Combined SUBRA's 3D-profile metal tapes with THEVA's inclined substrate deposition to produce >400m filamentated HTS tapes without quality loss. Planning to transfer development into new tape product. Now THEVA's parent company after April 2026 acquisition.
• Envision Energy ApscoreStrategic or Co-development PartnerDanish Smart Energy solution provider leading EcoSwing consortium. World's first HTS wind turbine generator (3.6 MW) using THEVA's superconducting coils and wire. EU Horizon 2020 funded project (€10.5M).
• Stadtwerke München (SWM)coreStrategic or Co-development PartnerMunich utility company partnering on SuperLink project - world's first superconducting 110 kV high-voltage cable. Successfully commissioned October 2024 at main substation in Menzing, transmitting 500 MW over >10 km.
• Quantum Experience Ltd.minorChannel Partner/ Reseller/ DistributorIsraeli company manufacturing and selling superconductor experiment kits under 'Quantum Levitation' brand. THEVA Pro-Line HTS wire used to manufacture levitators for schools, universities and educational institutions.
• ivSupra (German Superconductor Association)coreStrategic or Co-development PartnerTHEVA is founding member of German superconductor industry association ivSupra. Association promotes superconductor technology and represents members at industry events including Hannover Messe 'Superconducting City' booth.
• Karlsruhe Institute of Technology (KIT)coreStrategic or Co-development PartnerRoWaMag project partner. KIT provided casing for HTS magnetic heater coils. THEVA supplied superconducting magnet (4 coils from ~4,000m HTS tape). Project aims to prove technical and economic suitability of magnetic heater for metal extrusion.
• NexanscoreStrategic or Co-development PartnerCable manufacturer and Best Paths project partner developing superconducting DC power line for offshore wind farm connections. Best Paths consortium includes transmission system operators, industry and science partners.
• CERNcoreStrategic or Co-development PartnerTHEVA participates in i.FAST (Innovation Fostering in Accelerator Science and Technology) workshop and HiTAT (High Temperature superconductor Accelerator Technology) workshop. Presentations on 2G HTS application in high-field environments for accelerator magnets.
• STAR Cryoelectronics Inc.coreChannel Partner/ Reseller/ DistributorAuthorized sales partner for USA market, handling THEVA products and TAPESTAR systems sales in the United States.
• AMS Korea Inc.coreChannel Partner/ Reseller/ DistributorAuthorized sales partner for South Korea market, handling THEVA products sales.
• Ultimate Materials Technology Co. Ltd. (UMAT)coreChannel Partner/ Reseller/ DistributorAuthorized sales partner for Taiwan market, handling THEVA products sales.
• K & R Creation Co. Ltd.coreChannel Partner/ Reseller/ DistributorAuthorized sales partner for Japan market, handling THEVA products sales.
• Quantum Design ChinacoreChannel Partner/ Reseller/ DistributorAuthorized sales partner for China market, handling TAPESTAR products sales.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• SuNam Co., Ltd. South Korean manufacturer of 2G HTS (REBCO) superconducting wire with significant commercial-scale production. Competes with THEVA in magnet, cable, and industrial applications across Asian and European markets.
• Shanghai Superconductor Technology (SST): Chinese 2G HTS wire producer scaling rapidly with state backing to serve domestic fusion, grid, and magnet applications. Direct competitor to THEVA, particularly aggressive on cost per kA-m.
• SuperPower (Furukawa Electric): US-based 2G HTS wire manufacturer (subsidiary of Furukawa Electric) producing REBCO coated conductors for power, magnet, and defense applications. Direct competitor to THEVA in the Western HTS tape market.
• American Superconductor (AMSC): US-based HTS wire and system manufacturer (Amperium wire) serving wind, grid, and ship propulsion. Overlaps with THEVA on wire production and downstream applications like EcoSwing-style wind turbines.
• Fujikura: Japan-based global leader in 2G HTS (REBCO) coated conductor wire manufacturing, supplying similar magnet, cable, and motor applications as THEVA. THEVA explicitly positions itself as the European alternative to Fujikura's dominant market share.
• Vision Electric Superconductor GmbH: German-based developer of superconducting busbar and power systems, THEVA's customer in the DEMO200 project (190 kA world record). Operates in the same European HTS power distribution ecosystem as THEVA.

Broad incumbents

• Nexans: Global cable manufacturer and THEVA's partner in the Best Paths superconducting DC cable project. Comparable as a downstream system integrator buying HTS tape to deliver HV superconducting cable solutions to utilities.
• Bruker HTS: Division of Bruker producing HTS materials and magnets for NMR and research applications. Comparable to THEVA in magnet-technology end markets, though Bruker is broader in scientific instrumentation.
• Sumitomo Electric Industries: Japanese conglomerate producing DI-BSCCO 1G HTS wire and developing 2G products, supplying magnet and cable applications globally. Adjacent incumbent to THEVA with broader portfolio across power, communications, and electronics.

Emerging players

• Commonwealth Fusion Systems: US-based commercial fusion venture that is a major buyer of HTS wire (REBCO tape) for high-field magnets. While not a tape manufacturer, CFS is a key pull-through demand source for THEVA's high-field applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds4 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Theva