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Deep Tech Companies in Leicester: 81 Active Firms (2026)
Deep tech companies build science-led hardware, software and engineering products for frontier markets, with this cohort based around Leicester.
Buying centres tend to sit in engineering, clinical, security and infrastructure teams rather than general IT procurement. Leicester-based suppliers in this space usually sell technical products that need validation, integration work and a patient buying process: sensor and hardware modules for industrial users, healthcare technology for clinical or care settings, cyber and AI tooling for enterprise teams, and energy or materials applications for infrastructure buyers. Engagements are often project-led at the start, with pilots, testbeds and grant-linked development preceding repeat licences, supply contracts or embedded platform relationships.
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Leicester has 81 actively trading deep tech companies in this list, a small city-region cohort by national standards but one with several distinct buyer routes across industrial, healthcare, public-sector and enterprise markets. Reported employment stands at 440 people, which points to a market still weighted towards specialist teams rather than large operating workforces. The commercial base is also narrow at the upper end, with only a small revenue-scale group visible locally.
Oversight follows the technology and use case, rather than a single deep-tech rulebook. Healthcare technology may bring MHRA expectations into product design and evidence gathering, while AI, cyber security and data-heavy tools can face sector-led scrutiny from buyers as well as privacy obligations overseen by the ICO. Engineering biology sits closer to statutory and sandboxed channels, including the Genetic Technology (Precision Breeding) Act and the Engineering Biology Regulators Network. Quantum, semiconductor and advanced-connectivity businesses are shaped more by national strategies, standards work, secure-by-design policy and public funding conditions than by one licensing gateway.
Commercial progress appears likely to be uneven. The Leicester cohort has the shape of an early-commercial market: many firms will need technical proof, sector references and procurement access before they can turn research-led products into repeatable revenue. Specialist teams tend to be suited to pilots and integration-heavy projects, but that can slow conversion into wider deployments. Scarcity at the larger-revenue end may also make partnerships, grant-funded collaboration and occasional acquisition more important than standalone scaling for some firms.
81
Active firms
2026
15
Incorporated since 2022
1
Above £5M turnover
Key facts
About 1% of the trading cohort reports turnover above £5M (1 of 81 firms) — the rest sits below that revenue band.
18% of the cohort was incorporated since 2022 (15 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.
Regulation is use-case-specific: AI is handled through a sector-specific model, engineering biology through the Engineering Biology Regulators Network, sandboxes and the Genetic Technology (Precision Breeding) Act, and cyber activity through the Cyber Security and Resilience Bill.
UK deep tech venture investment has slowed from its 2021 peak but still consistently attracts over £5 billion in annual venture capital; AI and healthcare each secured more than £1 billion in value in the first half of 2024.
International comparisons put 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 Leicester Deep Tech companies
Earthsense Systems Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops air quality monitoring hardware and software, including Zephyr sensors and MappAir modelling tools. Provides real-time pollution measurement, data platforms and forecasting used by local…
Serves public-sector bodies and organisations focused on air quality, including local authorities, smart city teams, transport/ITS operators, schools, construction firms and industrial sites.
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
Location
PERPETUAL ATOMICS LTD
Trajectory
1y · 2025–NowDevelops nuclear power technologies for space and terrestrial applications, including radioisotope power systems, microreactors, and advanced nuclear fuels. Focuses on providing energy solutions for…
Serves space and non-space organisations requiring power solutions for extreme environments, including customers in space science, exploration, and Earth-Moon ecosystem infrastructure.
Financial Health
Insufficient historyInsufficient history
Location
Renewable Union Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
JUST SOLUTIONS UK LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Ssd Rc Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
QUANTA ENGINEERING LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Forward Electronics Limited
Trajectory
3y · 2023–NowFinancial Health
Insufficient historyInsufficient history
Location
EXPRESS ASSEMBLIES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -69% CAGR over 4y
Location
ALPHASENSE LIMITED
Trajectory
3y · 2019–NowFinancial sub-scores
Computed from 3 filingsDesigns and manufactures gas and particulate sensors including oxygen, CO2, toxic and flammable gas sensors, photoionization detectors, and optical particle counters. Supplies components for…
Serves industrial OEMs worldwide, especially manufacturers of portable and fixed gas detection monitors, stack gas analysers, environmental monitoring instruments, and air quality monitoring…
Financial Health
HealthyHealthy · Hiring · 15% CAGR over 2y
Location
TENGRAIN SCIENCE LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable
Location
PARAMIRUM LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · -49% CAGR over 4y
Location
TANCO SCIENCES & ENGINEERING LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
Digital Concepts Engineering Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and develops robotic control systems, unmanned ground vehicles and remote operation technology. Provides engineering consultancy and R&D, and supplies control platforms such as the Marionette…
Sells primarily to B2B and public sector buyers in defence, nuclear, agriculture and health, including government defence agencies, laboratories, prime contractors, nuclear agencies, universities,…
Financial Health
StableStable · Hiring · 26% CAGR over 2y
Location
Forest Rock
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops and supplies Internet of Things devices, software and connectivity solutions for building management and energy monitoring systems. Offers controllers, wireless sensors, gateways, routers…
Serves B2B customers in building management, automation and energy management, including BMS contractors, systems integrators, property and facilities managers, and technical teams.
Financial Health
StrongStrong · Hiring · 17% CAGR over 3y
Location
TECHNOLOGY SOLUTIONS (UK) LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and sells mobile RFID hardware including UHF, HF and LF RFID readers, RAIN RFID modules and Bluetooth‑enabled scanning devices. Provides related software development kits, mobile apps,…
Serves B2B customers including systems integrators, OEMs, distributors and organisations deploying RFID for asset tracking, inventory and mobile data capture across industrial and enterprise…
Financial Health
DistressedDistressed · -91% CAGR over 2y
Location
FIGURA ANALYTICS LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDevelops liquid analysis technology using nanopore sensors, AI and DNA aptamers to count particles and identify contaminants in samples. Provides rapid testing and fingerprinting of liquids to…
Serves B2B customers in drinks, healthcare and other liquid-processing industries, particularly quality, product development and laboratory teams monitoring samples, contaminants and product…
Financial Health
WeakWeak · -7% CAGR over 3y
Location
CAMPBELL SCIENTIFIC LIMITED
Trajectory
4y · 2020–NowFinancial sub-scores
Computed from 4 filingsDesigns and manufactures dataloggers, sensors, and data acquisition systems for environmental, infrastructure, and industrial monitoring. Supplies measurement and control instrumentation used in…
Serves research institutions, industrial operators, utilities and public-sector agencies in weather, water, energy, infrastructure, geotechnical, automotive and soil monitoring markets.
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 3y
Location
FORCE ENGINEERING LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures linear induction motors and electromagnetic and permanent magnet systems. Provides research, development, and engineering consultancy for motion and acceleration applications…
Serves B2B engineering, manufacturing and R&D teams worldwide with new or existing applications requiring custom linear motor and electromagnetic solutions.
Financial Health
StableStable · -67% CAGR over 4y
Location
SMYTEC LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops hybrid multi‑ and hyperspectral imaging technology for forensic evidence detection and capture. Produces the BlindSite handheld system for locating latent fingerprints, body fluids and trace…
Serves police forces, forensic science providers, crime scene investigators, defence and security organisations, academic researchers, and commercial clients in forensic evidence recovery.
Financial Health
StrongStrong
Location
Eccel Technology Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDesigns and manufactures RFID and NFC hardware and embedded electronics, including readers, modules, antennas, cards and tags. Provides custom RFID product design, evaluation boards, in‑house PCBA…
Sells to B2B customers such as OEMs, electronics manufacturers, product developers and system integrators needing RFID/NFC components, plus avian research and tracking users.
Financial Health
StableStable · -10% CAGR over 3y
Location
CAMBRIDGE ORTHOPAEDIC LABS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops orthopaedic trauma technologies including non‑invasive external fixation systems for fracture management. Conducts research, patenting and commercialisation of medical devices such as the…
Serves orthopaedic clinicians, trauma surgery teams and healthcare providers treating fracture patients, with patients as end users.
Financial Health
DistressedDistressed
Location
Advanced Hydrocarbon Fuels
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops and commercialises technology that converts mixed plastic waste into liquid fuels using a controlled gasification process. Produces a middle‑distillate fuel (Keroclean) for blending with…
Serves B2B customers managing plastic waste and commercial fuel demand, including waste processors, heavy goods vehicle operators, power generator users and potential aviation fuel buyers.
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
Location
PAUL WORTH CONSULTING LTD
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · Hiring · 41% CAGR over 4y
Location
Intelligent Energy
Develops and manufactures hydrogen fuel cell systems and power modules for applications including automotive vehicles, aircraft and eVTOL, drones, material handling equipment, telecoms…
Serves B2B customers in automotive, aerospace/eVTOL, construction, material handling, data centre, telecoms, power generation and UAV sectors adopting hydrogen fuel cell systems.
Location
TrackItAll Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsDevelops a digital platform that connects with sensors to track, monitor and measure devices, collecting data into a central dashboard for real-time analytics. Used for asset and condition monitoring…
Serves businesses and organisations in the medical, agricultural and commercial sectors, particularly teams responsible for monitoring devices, assets or resource use across distributed sites.
Financial Health
DistressedDistressed · -27% CAGR over 4y
Location
MORGAN TECHNICAL SERVICES (UK) LTD
Trajectory
3y · 2019–NowFinancial sub-scores
Computed from 3 filingsDesigns and manufactures advanced technical ceramic components and ceramic‑to‑metal assemblies using materials such as alumina, zirconia and silicon nitride. Produces parts via extrusion, injection…
Serves B2B OEMs, engineers and procurement teams in aerospace, automotive, medical, semiconductor, petrochemical, power, defence, analytical instruments, lasers/optoelectronics, glass and water…
Financial Health
StrongStrong · Profitable, Growing · 0% CAGR over 2y
Location
PG Instruments Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures analytical laboratory instruments including ICP-OES spectrometers, atomic absorption and UV‑visible spectrophotometers, FTIR systems, flame photometers, microwave digestion…
Serves laboratories, industrial users and distributors worldwide, including customers in water analysis, oil and fuel testing, elemental analysis and drug dissolution testing.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electronics design consultancy services including PCB hardware design and layout, embedded systems development, and firmware/software engineering. Also conducts environmental and climatic…
Serves B2B product developers, engineering teams and technology businesses developing embedded electronics, including communications, sensing and positioning products, components, sub-systems and…
Financial Health
WeakWeak · Hiring · 8% CAGR over 2y
Location
Vision Intelligence Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides smart site surveillance and monitoring systems including solar‑powered security cameras, mobile surveillance trailers, licence plate recognition, traffic and speed monitoring, environmental…
Serves B2B and public-sector customers in construction, mining, agriculture, events, local councils and government agencies needing site, traffic, environmental or logistics monitoring for remote or…
Financial Health
StableStable · -33% CAGR over 3y
Location
Druck
Manufactures piezoresistive pressure sensors, transducers, and pressure test and calibration instruments, including portable calibrators, pressure controllers, and air data test sets. Products are…
Serves B2B engineering, maintenance and calibration teams in aerospace/aviation, energy, electronics/semiconductor, environmental/meteorology, healthcare, industrial, metrology and transportation…
Location
Zayndu Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops and supplies plasma-based seed priming systems that treat seeds with “activated air” to improve germination and crop performance. Provides on‑site equipment, treatment protocols,…
Serves commercial growers, controlled-environment agriculture operators, plant breeders, seed multipliers, independent crop experts and agricultural researchers seeking seed performance and yield…
Financial Health
StableStable · Hiring · 39% CAGR over 4y
Location
Biopolymer Solutions Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -16% CAGR over 4y
Location
Hippies of Physics Ltd
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable
Location
SYLAB SCIENTIFIC LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
WeakWeak · Hiring · 50% CAGR over 1y
Location
Eco Semiconductors Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 4y
Location
SPIN ECHO LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -68% CAGR over 4y
Location
BIOTHERICS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · -68% CAGR over 4y
Location
MECHATRONICS LABS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
Guidance Automation Solutions Ltd
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -69% CAGR over 4y
Location
MYOMAKERS LTD
Trajectory
2y · 2025–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
HealthyHealthy
Location
EDT DIRECT ION LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 5% CAGR over 4y
Location
Oil Containment Systems Inc. Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
SEVEN EARTH LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed
Location
ALTUS CONTROLS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
Design Techniques Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
Quantum Technologies Associates Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong · Hiring · 100% CAGR over 1y
Location
Future Technology (Sensors) Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy
Location
HOT TUB CHEMICAL CONTROLLERS LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StableStable · 0% CAGR over 1y
Location
C.J.S. TECHNOLOGY LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
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How Leicester Deep Tech companies work and how to sell to them
What they do
Leicester deep tech firms usually monetise proof before scale. Most revenue starts as paid feasibility work, prototype delivery, integration services or grant-backed development, then shifts into licences, support retainers, hardware supply or embedded platform use once the buyer has accepted the technical risk. Margins and renewal patterns vary by model: software-heavy teams can move towards subscription or usage pricing, while hardware, materials and healthcare suppliers often carry longer delivery cycles, testing costs and service obligations. Sales collateral therefore tends to centre on evidence, reliability, deployment constraints and the buyer’s operational case, rather than a simple feature comparison.
Who they sell to
Most sell into organisations with technical or regulated buying centres: industrial operators, healthcare providers, infrastructure owners, public-sector bodies and enterprise security or engineering teams. The economic buyer may be a CTO, operations director, clinical lead, CISO, head of engineering or programme sponsor, with procurement and finance joining once a pilot becomes a wider deployment. Contracting is typically direct and relationship-led, though public-sector and healthcare routes may involve frameworks, RFPs or grant-funded collaborations. Sales cycles tend to be slower than ordinary software sales because buyers need technical validation, integration planning, risk assessment and internal sponsorship before committing budget.
What they buy
Suppliers selling into this segment most often pitch around the operating machinery of a technical company: cloud and data infrastructure, security tooling, test environments, analytics, engineering workflow software, CRM, billing, project accounting and bid management. Hardware and healthcare technology firms may also need prototyping support, specialist recruitment, quality management, regulatory advice, grant finance support and outsourced manufacturing or testing services. Early-commercial teams tend to be cost-conscious, so tools that reduce manual technical work, help evidence compliance, improve customer onboarding or make grant and commercial reporting less painful are usually easier to frame than broad back-office upgrades.
Why and how to sell to them
Deep tech buyers tend to evaluate vendors when a prototype moves into production use, a grant or contract creates delivery obligations, a new technical leader tightens process, or a customer audit exposes gaps in security, quality or reporting. Common pain points are long validation cycles, scarce engineering time, uncertain procurement paths and the difficulty of turning pilots into repeatable revenue. Outbound tends to work better when it names the specific constraint: helping clinical teams prepare evidence, helping industrial deployments reduce integration risk, helping cyber or AI teams satisfy buyer scrutiny, or helping founder-led teams professionalise sales and finance without slowing technical work.
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.
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Frequently asked questions
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