SUBRA A/S

What SUBRA A/S does

SUBRA A/S is a Danish deep-tech company founded in 2014 that develops high-temperature superconductor (HTS) solutions based on Rare-Earth-Barium-Copper-Oxide (REBCO) chemistry, headquartered in Farum, Denmark. Its two core products are Subracable — the company's flagship, positioned as the world's first cost-effective and scalable HTS bundled-wire solution for power transmission and fusion energy, enabling claimed 300x more power per cross-section than copper, 90% lower transmission losses, and scalability beyond 100 km — and Subratape, an advanced filamentised HTS tape product for fusion and accelerator applications. Subra's underlying technology is grounded in a filamentisation manufacturing technique invented by CEO Anders C. Wulff during his tenure at the Technical University of Denmark (DTU), supported by 15+ years of superconductor R&D and 15+ peer-reviewed publications.

The company monetises primarily through B2B hardware sales of Subracable and Subratape to three segments: energy grid operators and utilities (long-distance, near-zero-loss power transmission for European supergrid build-out), fusion energy companies (superconducting magnets for magnetic confinement reactors), and research/scientific institutions (HTS tapes for accelerators and specialised systems). Pricing is project-specific and quote-based rather than list-priced, consistent with deep-tech enterprise sales cycles. Distribution is direct enterprise sales with no intermediaries; supplementary revenue comes from EU and national R&D grants and consortia, including the €3.5M EIC Accelerator award (2023) and the Eurostars-funded FILAMENTS4FUSION project.

In April 2026, Subra closed a €40 million Series A led by Novo Holdings with co-investors Maj Invest and SPRIND, and simultaneously acquired THEVA Dünnschichttechnik GmbH, a German superconducting materials manufacturer with ~60 specialists and proprietary thin-film deposition capabilities. The combination creates an integrated European HTS platform with combined headcount of ~100+ specialists and dual manufacturing footprints in Denmark and Germany, positioning Subra as a potential European champion in superconducting cable and tape supply for grid, fusion, and research markets.

Name

SUBRA A/S

Legal name

Subra A/S

Website

https://subra.dk

Company type

Private

Founded year

2014

Headcount range

11–50 employees

Short description

SUBRA A/S is a Danish deep-tech company developing high-temperature superconductor (HTS) bundled wires (Subracable) and filamentised HTS tapes (Subratape) for power transmission, fusion magnets, and research applications, serving European grid operators, fusion energy developers, and scientific institutions.

Ownership category

akta.pro rank

Product category

High-Temperature Superconductor Manufacturing

NAICS

Communication and Energy Wire and Cable Manufacturing (33592), Electrical Equipment, Appliance, and Component Manufacturing (335)

SIC

Electronic Coils, Transformers & Other Inductors (3677)

akta.pro primary industry

HVDC Cables & Overhead Lines (Subsea, Underground, Overhead) (EUADAMAB)

akta.pro secondary industries

Utility & Underground Distribution Cable (URD/Substation) (IMADAMAG), HVDC/FACTS & Power Electronics Retrofit/Upgrades (STATCOM, SVC, Series Comp) (EUAEALAG)

Keywords

• High-temperature superconductors
• Power transmission cables
• Fusion energy magnets
• REBCO superconductors
• Superconductor manufacturing

Headquarters

HQ city

Farum

HQ country

Denmark

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Superconductor Hardware Sales: Revenue generated from the sale of Subracable bundled wires and Subratape HTS tapes to energy grid operators, fusion energy companies, research institutions, and industrial customers. Given the early-stage nature (post-Series A acquisition) and B2B deep-tech sales cycle, revenue model is likely project/contract-based hardware sales with potential service components.
2. Research and Development Partnerships / Grants: EU and national funding (e.g., EIC Accelerator 3.5M EUR, Eurostars FILAMENTS4FUSION) partially supports R&D activities. May transition to commercial revenue as technology matures.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Subra designs and manufactures high-temperature superconductor (HTS) solutions based on REBCO technology. Its principal product, Subracable, is the world's first cost-effective and scalable HTS bundled-wire solution for near-zero-loss power transmission and fusion reactor magnets. The secondary product, Subratape, consists of advanced filamentised HTS tapes for fusion and accelerator systems. Subra sells directly to energy grid operators, fusion energy companies, and research institutions.

Product overview

Subra is a Danish deep-tech company developing two core superconducting products: the Subracable (a bundled wire superconductor solution for power transmission and fusion energy magnets) and the Subratape (advanced filamentised HTS tapes for fusion and accelerator applications). The company recently acquired THEVA (Germany) to integrate superconducting materials manufacturing with its cable technology, creating a unified European platform for high-performance superconductors serving energy, research, and industrial markets.

Differentiator

Problem solved

Functional benefit

Products and services

• Subracable World's first cost-effective and scalable high-temperature superconductor bundled-wire solution, transporting 300x more power per cross-section than copper with 90% lower transmission losses. Targets energy grid operators for long-distance power transmission and fusion reactor developers for high-field superconducting magnets.
• Subratape Advanced high-temperature superconductor (HTS) filamentised tapes with narrow filaments enabling minimal AC losses, small cable bending radius, and fast field ramping. Targets fusion reactor developers, particle accelerator programs, and scientific research institutions.

Quantifiable outcome

• 300x more power per cross-section of conductors compared to copper
• +8 more outcomes

Named customers3 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

Feature4 records

Partnerships

Four partnerships are on record, tiered flagship and core.

• THEVA (Theva Dünnschichttechnik GmbH)flagshipStrategic or Co-development Partner · 10 April 2026THEVA, a Germany-based producer of superconducting materials with over 30 years of expertise, was acquired by Subra as part of the Series A. THEVA brings proprietary thin-film deposition technology, ~60 specialist employees, and established German manufacturing facilities. The combination consolidates Subra as the European leader in high-performance superconductors with complementary technologies — Subra's cable architecture and THEVA's material science.
• EU / European CommissioncoreStrategic or Co-development Partner · 19 February 2025EU Energy Commissioner Dan Jørgensen visited Subra to explore superconductors' role in strengthening Europe's energy security, electrification, and industrial competitiveness. The EU has supported Subra's development through the EIC Accelerator programme.
• European Fusion Association (EFA)coreStrategic or Co-development Partner · 24 September 2024Subra is a founding member and CEO Anders Wulff serves on the EFA Executive Board. EFA is an International Non-Profit Association established in Brussels to drive fusion energy industrialisation across Europe. Founding members include 12 European companies spanning the fusion supply chain.
• FILAMENTS4FUSION ConsortiumcoreStrategic or Co-development PartnerEurostars-funded European technology development project involving Subra, THEVA, Etch A/S, and the Institute of Electrical Engineering at the Slovak Academy of Sciences (IEE SAS). The project validated a low-cost production method for filamentised superconductor tapes for fusion, achieving AC loss reductions of up to 96%.

Scale indicators11 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• American Superconductor (AMSC): US-based supplier of HTS wire (Amperium) and grid solutions including D-SMES and fault current limiters. Direct overlap with Subra in power transmission and HTS wire, with established utility customer relationships in North America and Europe.
• SuNam Co., Ltd. Korean manufacturer of coated HTS conductors (REBCO tape) using RCE-DR and PLD processes, competing in power cable, magnet, and emerging energy applications. Closely comparable as an HTS tape specialist targeting the same end markets as Subra.
• SuperPower (Furukawa Electric): Subsidiary of Furukawa Electric producing 2G HTS wire using MOCVD deposition, serving grid, magnet, and fusion customers worldwide. Directly comparable to Subra/Subratape product line and a key competitor in long-length HTS tape supply.
• SuperOx: Producer of 2G HTS wire and HTS magnet systems for medical, scientific, and energy applications. Competes in the same HTS tape and superconducting magnet markets that Subra addresses with Subratape and Subracable.
• Fujikura: Japanese global leader in REBCO HTS tape manufacturing, supplying long-length coated conductors for power cables, magnets, and fusion applications. Direct technical competitor to Subra's HTS wire platform with deep manufacturing maturity and significant scale.
• Bruker Energy & Supercon Technologies (BEST): Bruker division manufacturing low- and high-temperature superconducting wires, cables, and magnets for research, medical (MRI), and energy applications. Direct competitor in superconducting wire production serving similar customer profiles.

Broad incumbents

• Nexans: Global cable manufacturer with active HTS power cable programmes and high-voltage transmission expertise. Broader portfolio incumbent competing for the same utility customers Subra targets with Subracable, leveraging established utility relationships.
• nkt A/S: European cable manufacturer with high-voltage power cable products and research into superconducting cable technology. Comparable as a regional incumbent in HV transmission infrastructure supplying European utilities.
• Furukawa Electric: Parent of SuperPower and a global cable and electronics conglomerate with deep superconducting materials and grid infrastructure capabilities. Comparable as a broad incumbent in HTS materials and power transmission.

Emerging players

• CFS (Commonwealth Fusion Systems): US-based fusion developer building SPARC and ARC using HTS magnets (REBCO tape from external suppliers such as SuperOx and Fujikura). Subra's fusion customer segment overlaps with CFS's magnet procurement needs, making it a comparable emerging fusion player on the demand side of Subra's TAM.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/subra-a-s

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

Funding overview

Funding rounds2 records

Investors5 records

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

M&A1 record

Investments

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

Frequently asked questions about SUBRA A/S