Company profile
Arqit Limited
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Arqit Limited is a UK company with status active founded in 2017 based in London.
Corporate ownership
Updated 06 Jun 2026 16:52
Company events
Reference milestones and recent Companies House filing stream events.
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Accounts With Accounts Type Full
Accounts PDF pendingAA | Transaction MzQ0MzA0NzI1OGFkaXF6a2N4 | Paper/PDF filed
Published 14 Nov 2024 09:09
Termination Director Company With Name Termination Date
OfficersTM01 | Transaction MzQzODQyMDg3MmFkaXF6a2N4
Published 04 Oct 2024 10:57
Termination Director Company With Name Termination Date
OfficersTM01 | Transaction MzQzODQyMDcwM2FkaXF6a2N4
Published 04 Oct 2024 10:56
Change Registered Office Address Company With Date Old Address New Address
AddressAD01 | Transaction MzQzMTYyNTU5NGFkaXF6a2N4
Published 08 Aug 2024 13:47
Incorporated
InceptionCompany registered at Companies House
Public funding
Projects
Security Enhanced Virtualised Networking for 5G (SEViN-5G)
1 Oct 2022 to 31 Dec 2023
The UK is at the forefront of 5G innovation, and 5G will bring massive economic benefits to the global economy. In particular the ability to deploy dedicated Private 5G for industrial and smart city use cases will yield economic and societal benefits. However with new technology comes new security vulnerabilities, and the 5G networks will be an attractive...
Project HEART - Phase 3
1 Jul 2022 to 30 Jun 2024
HEART (Hydrogen- Electric and Automated Regional Transportation) is a programme that will demonstrate a viable regional transport network that is zero carbon, affordable, scalable and safe. It is aimed at sub-regional aviation (typically using 9-19 passenger aircraft, with circa 100 licensed airfields around the UK) with an objective to enable a commercia...
Towards a Quantum enabled Cloud
1 Mar 2022 to 31 Aug 2024
Quantum Key Distribution (QKD) facilitates the secure sharing of encryption keys using quantum technology. These keys can encrypt data for transmission over conventional fibre links across any distance, but QKD itself is limited over fibre to around 150km with current technology. Beyond this, 'trusted nodes' are required, but at major risk of creating sec...
Towards a Quantum Internet
1 Jan 2022 to 30 Jun 2023
The goal of this project is to develop a source of time/frequency-entangled photon pairs suitable for multipurpose quantum communications in daylight conditions the context of next generation wireless communications. The large background noise due to solar radiation limits satellite-to-ground and, in general, free-space entanglement distribution to night ...
Towards Quantum Time Transfer
1 Dec 2021 to 31 Jul 2022
The goal of this project is to explore the feasibility of a satellite-based quantum secure time transfer service. Existing time dissemination services are vulnerable to spoofing or jamming, are unable to serve hard-to-reach locations and provide limited timing accuracy. By utilising quantum secure transfer, a new service can be implemented which is unbrea...
Quantum Electro-Optic Detector Technology (QuEOD)
1 Sep 2020 to 31 Aug 2023
The QuEOD project brings together academic and industrial partners to break through the technology barriers for novel types of time-resolved SWIR detectors and pave the way forwards for UK sovereign supply and leadership. It will to develop a unique supply chain and engage in commercial exploitation for both CMT and GaSb detector technologies for next gen...
Next Generation Satellite QKD - Creating a UK Sovereign Capability for Manufacturing Satellite QKD Payloads
1 Jul 2020 to 30 Sep 2023
Quantum Key Distribution (QKD) facilitates the secure sharing of encryption keys using quantum technology. These keys can encrypt data for transmission over conventional fibre links across any distance, but QKD itself is limited over fibre to around 150km. Beyond this, 'trusted nodes' are required, but at major risk of creating security vulnerabilities. A...
AIRQKD
1 Jul 2020 to 30 Sep 2023
AirQKD establishes a UK ecosystem, from single-photon components to networked quantum systems, to protect short to mid-range communication in free space. In particular we carry out pilot demonstrations of the enabling infrastructure for quantum-secure 5G and autonomous and connected vehicles.
3QN: Towards A New UK Industry for Novel Quantum Receivers in Nascent Satellite QKD Global Markets
1 Nov 2018 to 31 Dec 2021
Quantum Key Distribution (QKD) is a well understood application of quantum technology and there are several metropolitan fibre networks already established for QKD services. However, key distribution is limited by absorption inside optical fibres which mean that transmissions over distances greater than about 150 km are impractical. Free space communicati...