Turn this list into pipeline.
Deep Tech Companies in London: 1,700+ Active Firms (2026)
Deep tech companies develop science-led technologies across AI, hardware, materials, health, energy and computing in London.
Buying centres tend to sit with chief technology officers, R&D heads, security teams, product leaders and clinical or industrial operations teams, rather than only with procurement. Sales motions are usually business-to-business and institution-led: enterprise buyers, government programmes, healthcare operators, manufacturers, infrastructure owners and specialist research groups. Typical engagements start as technical evaluations, paid pilots or integration projects, then move into licensing, subscription, hardware-plus-software supply or regulated service contracts. London firms in this category often need to translate defensible IP into buyer-specific proof, with sales cycles shaped by validation work, standards compliance and specialist implementation effort.
Read more
London has 1,754 active trading deep tech companies in this list, making it a sizeable urban concentration rather than a narrow research niche. Reported headcount totals 1,254 people, which points to a market where disclosed employment is concentrated in specialist technical teams and many firms remain at early-commercial or low-headcount stage. The buyer mix also means London’s sales base is broader than local demand, with public-sector, enterprise, healthcare and industrial customers often sitting outside the capital.
Deep tech sits across several UK regulatory lanes rather than a dedicated rulebook. AI governance is being handled through sector-specific regulators, while engineering biology brings in the Engineering Biology Regulators Network, sandbox mechanisms and the Genetic Technology (Precision Breeding) Act. Cyber activity is linked to secure-by-design policy and the Cyber Security and Resilience Bill. Quantum and semiconductor markets are more often shaped by national strategies, public funding and standards than by routine licensing. For London companies, the practical burden is usually mapping a technical product onto several customer regimes.
Commercialisation appears likely to remain uneven. AI, cyber and software-heavy categories tend to reach customers with lighter deployment burdens, while hardware, materials, quantum and regulated healthcare technologies face longer validation cycles and wider implementation commitments. London’s advantage is its proximity to capital, enterprise buyers, government users and clinical or infrastructure decision-makers, but that does not remove the gap between technical proof and repeatable revenue. Consolidation may favour businesses that can turn specialist research into standardised products, while research-led firms with bespoke delivery models may stay small or be absorbed into customer supply chains.
1,754
Active firms
2026
51
Turnover above £5M
London companies
528
Founded since 2022
London companies
Key facts
About 2% of the trading cohort reports turnover above £5M (51 of 1,754 firms) — the rest sits below that revenue band.
30% of the cohort was incorporated since 2022 (528 firms), so a sizeable share is in its first few filing cycles.
UK government policy identifies six priority frontier technologies: advanced connectivity, AI, cyber security, engineering biology, quantum technologies and semiconductors.
Oversight is largely technology- and use-case-specific, with AI handled through a sector-specific model and engineering biology linked to the Engineering Biology Regulators Network, regulatory sandboxes and the Genetic Technology (Precision Breeding) Act.
Cyber activity is linked to the Cyber Security and Resilience Bill and secure-by-design policy, while quantum and semiconductor policy is shaped mainly through national strategies, public funding and standards.
Royal Academy of Engineering reporting places the UK first in Europe and third globally for deep-tech venture capital raised, behind the USA and China.
Domestic investor participation falls from 57% at seed stage to under 10% at late stage, so later rounds rely more on overseas capital.
Top London deep tech companies
PhysicsX Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops artificial intelligence software for engineering and industrial design. Provides a platform that combines machine learning with physics‑based simulation to support product design,…
Serves enterprise engineering and R&D teams in critical industrial sectors, including semiconductors, aerospace and defense, materials, energy and renewables, and automotive.
Financial Health
StrongStrong · Hiring · 135% CAGR over 2y
Location
Develops trapped‑ion quantum computing hardware and software. Provides quantum computer systems, cloud access platforms, developer tools, quantum random number generation technology, and applications…
Serves enterprises, research organisations, developers and startups exploring quantum computing, particularly in computational chemistry, materials science, cybersecurity/encryption and advanced…
Location
Orca Computing Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops photonic quantum computing systems and quantum accelerators using fibre‑interconnected architectures. Produces rack‑mounted PT Series machines designed for applications such as generative…
Serves enterprises, research organisations and developer teams pursuing quantum-accelerated generative AI and optimisation, including on-premises data centre and cloud environments across industrial…
Financial Health
StableStable · Hiring · 15% CAGR over 2y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and develops RISC‑V based processor core intellectual property, development boards, and software tools. Supports creation and testing of customizable microprocessor architectures for…
Serves B2B semiconductor and electronics teams designing compute platforms for AI/ML, automotive, edge, IoT/embedded, consumer devices, data centres, space/aerospace and defence, and storage…
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops quantum computing hardware and software, including annealing and gate‑model systems. Provides cloud-based access to quantum processors, development tools, and professional services for…
Serves enterprise technology and business leaders, developers and quantum researchers in manufacturing, logistics, public sector, defence/aerospace and advanced computing organisations.
Financial Health
StrongStrong · Hiring · 91% CAGR over 3y
Location
MINT NEUROTECHNOLOGIES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and supplies application‑specific semiconductor integrated circuits for neural implant devices, including chips for neural signal acquisition, stimulation control, signal processing, power…
Serves medical-device companies, system integrators, research institutions, clinical groups and consortia developing active implantable medical devices, brain-computer interfaces and neural interface…
Financial Health
StableStable · -87% CAGR over 2y
Location
Breathe Battery Technologies Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops physics‑based software tools for battery engineering, including cell design, simulation and adaptive charging control. Provides modelling, parameterisation and validation services to help…
Serves enterprise engineering teams and battery engineers at global brands developing battery-powered products and battery systems, from new programme concept through product launch.
Financial Health
HealthyHealthy · Hiring · 136% CAGR over 4y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops software for quantum networking and quantum‑safe communications. Provides tools for modelling, optimisation and emulation of quantum networks, post‑quantum encryption deployment, and design…
Serves telecom operators, cloud providers, data centres, enterprise security teams, quantum hardware vendors, and university or research teams working on quantum-safe communications and quantum…
Financial Health
WeakWeak · Hiring · 8% CAGR over 3y
Location
HADEAN SUPERCOMPUTING LTD
Trajectory
2y · 2021–NowFinancial sub-scores
Computed from 2 filingsDevelops spatial computing and simulation software that creates large‑scale synthetic environments. The platform integrates AI and real‑time data to support defence training, mission planning,…
Serves defence organisations, militaries, national security agencies, government planners, and commercial operators of public transport and critical infrastructure.
Financial Health
StrongStrong · Growing, Hiring · 37% CAGR over 1y
Location
Supercritical Solutions Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops hydrogen production technology aimed at zero‑emission energy applications. Designs and commercialises electrolysis systems for generating green hydrogen for industrial processes such as…
Serves industrial B2B customers in hard-to-decarbonise sectors, including whisky and drinks production, ammonia/fertiliser manufacturing, mining and natural resources companies seeking green hydrogen…
Financial Health
StrongStrong · Hiring · 50% CAGR over 4y
Location
COUNTERCRAFT LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cybersecurity software that uses deception technology to create decoy environments within networks, generating threat intelligence, detecting attackers, and monitoring lateral movement and…
Serves enterprise CISOs and security teams, public infrastructure operators, governments and national security organisations, with focus on energy, financial services, healthcare, manufacturing,…
Financial Health
StableStable · Hiring · 26% CAGR over 4y
Location
Acubed IT Solutions Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops secure cross-domain software systems enabling information sharing across air‑gapped and classified networks for government, defence, and critical infrastructure. Builds applications using a…
Serves government, defence and critical national infrastructure organisations, including UK public sector security teams, defence primes and classified-environment programme teams needing…
Financial Health
WeakWeak · Hiring · 22% CAGR over 2y
Location
Trajectory
2y · 2025–NowFinancial sub-scores
Computed from 2 filingsDevelops computational software for molecular discovery that combines quantum computing with classical CPU and GPU infrastructure. Provides algorithms for quantum chemistry simulations and…
Serves pharmaceutical and biotech organisations, drug discovery teams, and computational chemistry/biology researchers working on molecular discovery in high-performance computing environments.
Financial Health
WeakWeak · 0% CAGR over 1y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDesigns and supplies analogue and mixed‑signal CMOS integrated circuits for high‑speed optical communications and networking. Products include transimpedance amplifiers, laser drivers, receivers,…
Serves B2B optical communications and networking equipment manufacturers, including FTTx/PON, datacom, wireless infrastructure and telecom suppliers.
Financial Health
StableStable
Location
Mode Black Ltd
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsDevelops free-space optical (FSO) communication technology and miniature laser-based wireless transceivers for telecommunications, defence and other applications, enabling secure high‑bandwidth links…
Serves telecommunications providers, defence organisations and autonomous systems developers needing secure communications for static and mobile platforms.
Financial Health
HealthyHealthy · Hiring · 33% CAGR over 1y
Location
LUNASA LTD.
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops space technology and orbital platforms enabling autonomous rendezvous and proximity operations. Provides satellite payload hosting and in‑orbit testbed services, and develops systems for…
Serves satellite operators, spacecraft manufacturers, space robotics and refuelling mission teams, space station cargo and exploration programmes, and public-sector space agencies developing in-orbit…
Financial Health
WeakWeak · Hiring · 108% CAGR over 3y
Location
WHITESPACE BETA LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops an AI software platform that provides modular applications for collaboration, knowledge capture, research insights and decision support. The system can be deployed on cloud, on‑premise, edge…
Serves regulated, security-focused organisations in defence, national security, government, financial services, emergency services and healthcare, targeting CTOs, CIOs, AI/ML leads, risk, compliance…
Financial Health
StableStable
Location
SKYRAL GROUP LIMITED
Trajectory
1y · 2023–NowDevelops modelling and simulation software that creates digital twins and synthetic environments for defence, government and enterprise users, supporting mission planning, decision support, training,…
Serves enterprise, defence, government and national security organisations worldwide, targeting decision-makers in mission planning, training, mobility/infrastructure and business intelligence…
Financial Health
Insufficient historyInsufficient history
Location
Transfinite Systems Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops radio spectrum management and radiocommunication modelling software, including the Visualyse suite for interference analysis, satellite coordination and regulatory studies. Also provides…
Serves governments, telecoms and satellite regulators, radio equipment manufacturers, network and satellite operators, and specialist consultancies worldwide.
Financial Health
StableStable · 0% CAGR over 2y
Location
Aeris-UK Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsDevelops deployable artificial intelligence and edge AI systems for defence, aerospace and critical infrastructure. Builds low‑power, real‑time decision‑support software, modular AI frameworks, and…
Serves public-sector and enterprise buyers in defence, aerospace and critical infrastructure, including UK and US government agencies and organisations operating in field, edge or disconnected…
Financial Health
StrongStrong · Hiring · 40% CAGR over 1y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops and manufactures superconducting quantum computing hardware, including quantum processing units, and provides cloud-based access to quantum computers and software tools for running quantum…
Serves B2B, academic and public-sector research teams developing quantum computing applications, including organisations seeking cloud access to quantum processors or on-premise QPU hardware.
Financial Health
StableStable · -52% CAGR over 4y
Location
Monolith AI Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cloud-based AI software for engineering product development. Platform uses machine learning on test and simulation data to predict design performance, optimise test plans, validate results,…
Serves engineering, R&D and testing teams at enterprise manufacturers in automotive, battery, aerospace and defense, industrial and medical sectors, plus engineering consultancies and labs.
Financial Health
StrongStrong · Growing, Hiring · 21% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops quantum computing algorithms and software for scientific simulation and optimisation. Works with quantum hardware platforms to model materials, chemical systems and complex networks, and…
Serves B2B commercial partners, including R&D teams in materials discovery, advanced biochemistry/pharma, logistics and resilient network optimisation, plus quantum hardware companies seeking…
Financial Health
StrongStrong · Growing, Hiring · 40% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops software and hardware automation tools for manufacturing devices using advanced nanostructured materials. Technology supports production of components for optoelectronics, environmental and…
Targets semiconductor and advanced materials companies developing next-generation chips, optoelectronic components, advanced sensors and quantum devices, including firms working on medical and…
Financial Health
StrongStrong · Hiring · 22% CAGR over 2y
Location
Beyondmath Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops AI-based physics simulation software that models fluid dynamics, thermal and other physical processes. Platform allows engineers to upload geometry, run simulations and analyse results to…
Sells to engineering and R&D teams in automotive, aerospace, energy, defense, semiconductors, construction, telecommunications and electronics companies that rely on physics simulation and design…
Financial Health
StrongStrong · Growing, Hiring · 87% CAGR over 2y
Location
Gorilla Technology UK Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops AI-based software and platforms for smart city and infrastructure management, including edge video analytics, surveillance systems, and security operations tools used in transportation,…
Serves governments, city authorities and enterprises worldwide, including public services, transport and logistics operators, ports, airports, healthcare organisations, schools, universities,…
Financial Health
StableStable · Hiring · 69% CAGR over 2y
Location
MUNRO'S ELECTRON BEAM SOFTWARE LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops software for simulation, design and optimisation of charged particle optical systems, including electron optical columns and sources. Also provides consultancy, custom design services, and…
Serves manufacturers of electron microscopes and charged particle optical equipment, particularly semiconductor industry suppliers, plus high-technology organisations needing specialist design…
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 4y
Location
SENNEN TECH LTD
Trajectory
3y · 2020–NowFinancial sub-scores
Computed from 3 filingsDesigns and develops autonomous and crewed maritime vessels using modular architectures and advanced composite hulls. Provides high‑performance surface and subsurface platforms for defence, security…
Serves defence, security and commercial maritime organisations, including military end users and offshore or littoral protection buyers, from single-unit procurement teams to fleet-scale deployment…
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 2y
Location
Cambridge Multi - Physics Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cloud‑native computational multiphysics simulation software for engineering and scientific applications. Products model plasma physics, magnetohydrodynamics, nuclear fusion systems and deep…
Serves B2B engineering and scientific teams in nuclear fusion, deep geothermal energy and advanced deep tech, including engineers, managers and organisations needing specialist multiphysics…
Financial Health
StrongStrong · Growing, Hiring · 28% CAGR over 4y
Location
POLYCHORD LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops data science and explainable AI tools for analysing complex datasets. Provides statistical inference, optimisation, signal extraction and anomaly detection systems used for infrastructure…
Serves public-sector bodies and commercial organisations with complex data-analysis needs, including defence, transport and infrastructure operators, highways agencies, energy authorities, and R&D…
Financial Health
WeakWeak · -66% CAGR over 4y
Location
Sensor Coating Systems Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops luminescent sensor coatings and thermal history technology used to measure and map temperatures on engineering components. Provides thermal profiling, data analysis and testing services for…
Serves B2B engineering customers in aerospace, power generation, automotive, industrial processes and oil & gas, particularly teams evaluating mission-critical components in demanding environments.
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 5y
Location
Anemos Technology Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsDevelops and manufactures multi-axis absolute position sensing technology for nanoscale measurement. Its MAPS sensors measure up to six degrees of freedom at a single point for applications including…
Serves B2B engineering, manufacturing and research organisations in metrology, machine tools, microscopy, nanotechnology, robotics and semiconductor sectors, including teams responsible for…
Financial Health
DistressedDistressed · 0% CAGR over 2y
Location
ABOUT:ENERGY LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsDevelops battery simulation models and measurement data for engineering teams. Provides electrical, thermal, electrochemical and degradation models, plus cell libraries, enabling virtual battery…
Serves B2B engineering and R&D teams developing battery-powered products, including automotive OEMs, EV and motorsport manufacturers, BMS developers, and battery industry companies.
Financial Health
HealthyHealthy · -68% CAGR over 2y
Location
ICON TECHNOLOGY & PROCESS CONSULTING LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops computational fluid dynamics (CFD) software and simulation platforms, and provides engineering consulting and solver development services. Supports product design and analysis through…
Sells to B2B engineering and product development teams needing CFD software, consulting, or simulation platforms, particularly in automotive, aerospace, motorsport, building, manufacturing and sports…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
Location
Carbon Clean Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops carbon capture technology for industrial point sources, including modular capture systems and chemical solvents. Designs, builds and operates equipment that captures CO2 emissions from heavy…
Serves B2B industrial companies in hard-to-abate sectors, especially operators of space-constrained heavy industrial sites seeking to meet net zero or emissions reduction targets.
Financial Health
StableStable · 0% CAGR over 3y
Location
Hexxcell Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops software for monitoring and predictive maintenance of industrial heat exchangers. Provides a hybrid‑AI digital twin platform that analyses plant data and physics models to assess fouling,…
Serves B2B industrial operators with heat exchanger networks, especially oil refineries and process plants. Targets plant personnel, maintenance engineers, energy efficiency analysts and heat…
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 4y
Location
PROTON TECHNOLOGIES LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops electrochemical devices and membrane-based systems for hydrogen processing, including hydrogen recovery from gas streams, high‑pressure compression, recirculation, mass flow control, and…
Serves B2B customers in hydrogen energy, industrial gas, fuel-cell systems and reactor/process industries that need hydrogen recovery, compression, recirculation, flow control or concentration…
Financial Health
StrongStrong · Growing, Hiring · 53% CAGR over 2y
Location
C4I SYSTEMS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops ruggedised edge computing and AI data platforms, including portable edge nodes, deployable micro data centres and mobile networking systems. Products support defence, public safety, maritime…
Serves defence and military organisations, public safety agencies, smart city operators, telecom/private network teams, industrial and energy operators, maritime/logistics firms, and other…
Financial Health
StableStable · -3% CAGR over 4y
Location
HYPERIO TECHNOLOGY LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops and supplies LiFi research and development kits, RF and microwave test instruments, and optical communication systems. Provides programmable wireless testing equipment and custom solutions…
Serves B2B and public-sector R&D teams in telecoms, defence, marine research and wireless communications, including engineers developing LiFi, RF, microwave, optical, underwater and mesh network…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops computational fluid dynamics (CFD) software based on open‑source technology for engineering analysis and design optimisation. Provides the HELYX simulation platform and add‑ons, along with…
Serves enterprise engineering teams, CFD specialists, scientists and designers in automotive, AEC, aerospace and defence, energy, turbomachinery, marine, motorsports, process manufacturing and…
Financial Health
StrongStrong · Hiring · 12% CAGR over 4y
Location
Integrate DG Ltd
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsDesigns, engineers and manufactures autonomous and unmanned air and maritime systems for defence and government applications. Provides systems integration, composite structures, propulsion and…
Serves defence and government organisations globally, including military teams and security agencies with air, maritime, surveillance, logistics and secure communications requirements.
Financial Health
DistressedDistressed
Location
AUG SERVICES LIMITED
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsDevelops sensor systems and software for signal processing, remote sensing, and video and image analytics. Provides automated detection, tracking and situation‑assessment tools used in security and…
Serves public-sector and enterprise buyers in defence, transport, critical infrastructure, environmental monitoring, natural resources, smart cities and utilities.
Financial Health
StableStable · Hiring · 4% CAGR over 3y
Location
Develops and promotes advanced nuclear energy technologies for maritime transport and heavy industry, focusing on applications such as nuclear‑powered ships and long‑duration fuel cycles for…
Serves B2B customers in maritime transport and heavy industry, including operators and asset owners seeking advanced nuclear energy solutions for ocean transportation and industrial applications.
Location
Provides high‑performance computing infrastructure, cloud services, and software for processing and analysing large datasets. Delivers geoscience services including seismic data processing, imaging,…
Serves B2B and research customers in energy/resources, geoscience, astronomy, bioinformatics, Earth observation and engineering/shipbuilding, especially teams working with large scientific or…
Location
Trajectory
5y · 2022–NowDevelops GNSS positioning technology and software that deliver centimeter‑level location accuracy. Provides cloud‑based RTK correction services and vehicle localization tools used in automotive…
Serves B2B technology and mobility organizations, including automotive OEMs and suppliers, robotics and drone companies, fleet and micromobility operators, GIS mapping teams, mobile navigation…
Financial Health
Insufficient historyInsufficient history
Location
CUDO VENTURES LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, builds and operates high‑performance computing and AI infrastructure, including GPU cloud platforms and “AI factory” data centre environments. Provides managed infrastructure services…
Serves enterprises, public sector organisations and research institutions with demanding AI and high-performance computing workloads, including teams seeking managed GPU infrastructure and sovereign,…
Financial Health
StableStable · Hiring · 9% CAGR over 4y
Location
SKYRAL DEFENCE LIMITED
Trajectory
1y · 2023–NowDevelops modelling and simulation software that creates synthetic environments and digital twins, integrating data visualisation and AI to support mission planning, training, infrastructure analysis,…
Targets enterprise, defence, government and national security customers worldwide, including teams responsible for mission planning, training, mobility infrastructure and business intelligence.
Financial Health
Insufficient historyInsufficient history
Location
Cambridge Sensoriis Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and develops low size, weight and power (SWaP) radar systems for drones and unmanned aerial vehicles, supporting precision landing, positional tethering, obstacle detection and target…
Serves UAV and drone manufacturers, operators and integrators in defence, aerospace and commercial advanced-air-mobility markets, including organisations using autonomous landing, tethering,…
Financial Health
StableStable · Hiring · 93% CAGR over 4y
Location
CLEARSPACE TODAY LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops in‑orbit services for the space industry, including robotic spacecraft for satellite servicing, refurbishment, and removal of space debris. Works with space agencies and industry partners on…
Serves space agencies, satellite operators and other space-industry organisations needing in-orbit servicing, debris removal and sustainable orbital operations, including public-sector and commercial…
Financial Health
StableStable · -60% CAGR over 3y
Location
VIVACITY LABS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops AI-powered traffic monitoring sensors and software that capture and classify real-time transport movements. Provides data on traffic flow, speeds, turning behaviour and near‑miss incidents…
Serves public-sector city, highway and transport authorities, plus urban infrastructure teams, seeking data for road safety, congestion, sustainability and traffic signal decisions.
Financial Health
WeakWeak · -51% CAGR over 5y
Location
Unlock all 1,754 leads
Showing 50 of 1,754 — +1,704 more with verified decision-maker contacts, live data, and CRM sync.
How London deep tech companies work and how to sell to them
What they do
Revenue usually comes from turning protected technical know-how into deployable software, models, hardware modules, data services, lab processes or engineering services. Pricing often mixes paid feasibility work, licence fees, usage-based access, per-device supply, maintenance and implementation support. Early contracts are often narrow, because customers want proof that a model, sensor, chip, workflow or biological process works inside their own operating environment. Gross margins vary by form: software-heavy firms can price like enterprise software, while hardware, materials and regulated healthcare businesses have to carry manufacturing, assurance, field support and quality costs in the commercial model.
Who they sell to
Customers are usually enterprise, public-sector, healthcare, industrial, infrastructure or research-led organisations with a specific technical constraint, not generalist SMBs browsing for tools. The internal champion is often a CTO, CISO, head of R&D, clinical lead, product owner or operations director, with finance and procurement joining once the evaluation becomes a contract. Contract values tend to range from paid proof-of-concept budgets to major supply, platform or licensing agreements, and sales cycles are usually measured in months rather than weeks. Direct technical sales matter, but frameworks, grant-funded consortia, systems integrator routes and RFPs can decide access to larger accounts.
What they buy
Most London deep tech firms tend to spend on the operating layer around research and deployment: cloud compute, data storage, model monitoring, observability, identity management, security testing, quality management, experiment tracking and technical documentation. Hardware and semiconductor teams add prototyping, test equipment, electronic design automation, specialist manufacturing and supply-chain services. Healthcare, biology and energy-related firms often need regulatory advice, clinical or industrial validation support, patent counsel and insurance. As commercial teams form, demand also moves into CRM, billing, revenue operations, partner management, recruitment, finance systems and marketing aimed at technical buyers rather than broad consumer demand.
Why and how to sell to them
Technical proof often creates the next budget problem for these companies: evidence management, repeatable deployment, security assurance, integration work and enough delivery capacity to serve enterprise or regulated customers. Buying intent tends to appear after a funding round, a first large customer win, a public-sector framework award, a clinical or industrial pilot, or the appointment of commercial, finance, security or compliance leadership. Outbound works better when tied to those milestones. Useful angles include shortening validation work, reducing implementation risk, making audit evidence easier to produce, protecting margin as delivery scales, or helping technical teams pass procurement without diluting the product roadmap.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
Also in London
Related directories
Frequently asked questions
How many deep tech companies are there in the London?↓
What counts as a deep tech company in this list?↓
Which are the largest deep tech companies in the London?↓
What do deep tech companies in the London actually do?↓
How does London deep tech compare internationally?↓
How is this list built and how fresh is the data?↓
How big are the typical deep tech companies in the London?↓
Are these mostly new or established deep tech companies?↓
What SIC codes does this use?↓
What buying signals should I look for?↓
Push these 1,754 companies into your pipeline.
Find the right decision-makers, see verified company data, and export your list in seconds.