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Startups

30 hard tech companies in the UK

Categories:3D PrintingClimate TechDefence TechDefence ManufacturingShipbuildingAgri TechBiotechAutonomous VehiclesEnergy
A

AccelerComm

Hiring

Provides high-performance physical layer IP for 5G and satellite (non-terrestrial) networks to optimize power, latency and resilience.

Stage: Series B
๐Ÿ“ Southampton
๐Ÿ‘ค Marco Pietropaoli
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ToffeeX logo

ToffeeX

Physics-driven generative design software that uses simulation to rapidly produce optimal thermo-fluid component geometries for manufacturing.

Stage: Series A
๐Ÿ“ London
๐Ÿ‘ค Joakim Espeland, Andrian Buchi
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QuadSAT logo

QuadSAT

Delivers UAV-based RF measurement and antenna testing systems for the satellite, defense, and wireless communication sectors.

Stage: Series A
๐Ÿ“ Denmark
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Porotech logo

Porotech

Develops porous GaN (gallium nitride) materials and micro-LED technologies (PoroGaNยฎ / DPTยฎ) for high-performance, energy-efficient semiconductor devices.

Stage: Series B
๐Ÿ“ Cambridgeshire
๐Ÿ‘ค Tongtong Zhu, Prof. Rachel Oliver, Yingjun Liu
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Paragraf logo

Paragraf

Scalable graphene deposition technology to lay single-atom-thick 2D materials on semiconductor substrates, for use in sensors, electronics, and energy harvesting.

Stage: Series C
๐Ÿ‘ค Simon Thomas
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OSS logo

OSS

Oxford Space Systems develops deployable satellite antennas that are smaller, lighter, and more cost-effective than traditional designs, aiming to become the global leader in space antenna technology.

Stage: Series A
๐Ÿ“ Oxford
๐Ÿ‘ค Sean Sutcliffe
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Nyobolt logo

Nyobolt

Builds ultra-fast charging, high-power batteries using niobium-based anode materials, targeting data centres, robotics, EVs and other high-duty applications.

Stage: Series C
๐Ÿ“ Cambridge
๐Ÿ‘ค Sai Shivareddy, Prof. Clare Grey
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Mytos logo

Mytos

Hiring

Mytos automates the production of stem cell-derived regenerative medicines to make life-saving therapies for conditions like Parkinson's and spinal cord injury accessible and affordable to millions of patients.

Stage: Series A
๐Ÿ“ London
๐Ÿ‘ค Ali Afshar, Ignacio Willats
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Molyon logo

Molyon

Molyon develops long-life lithium-sulphur batteries that deliver twice the energy density of current lithium-ion batteries, providing next-generation energy storage solutions.

Stage: Pre-seed
๐Ÿ“ Cambridge
๐Ÿ‘ค Ismail Sami, Zhuangnan Li, Prof. Manish Chhowalla, Sai Shivareddy
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IONATE logo

IONATE

Hiring

Ionate develops smart transformer hardware and AI-powered software to modernise century-old power infrastructure, creating adaptable and efficient energy systems for data centres and electricity grids.

Stage: Series A
๐Ÿ“ London
๐Ÿ‘ค Matthew Williams, Robert Ricci and Luca Mezossy-Dona
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FocalPoint logo

FocalPoint

Hiring

FocalPoint develops S-GNSS software using patented Supercorrelation technology to enhance GPS positioning accuracy for automotive, smartphones, and wearables in challenging environments like urban canyons and under foliage.

Stage: Series C
๐Ÿ“ Cambridge
๐Ÿ‘ค Ramsey Faragher
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F

Flink

Flink develops FlinkAI software that transforms industrial robots into plug-and-play systems for material handling, enabling them to pack, unload, and sort any material within minutes without altering existing facilities.

Stage: Pre-seed
๐Ÿ“ Zurich
๐Ÿ‘ค Moritz Geilinger, Simon Huber
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Cambridge GaN Devices logo

Cambridge GaN Devices

Hiring

Cambridge GaN Devices develops ICeGaN gallium nitride power transistors that operate like MOSFETs with higher efficiency and switching frequencies, enabling up to 50% energy savings in applications from data centres to electric vehicles.

Stage: Series C
๐Ÿ“ Cambridge
๐Ÿ‘ค Giorgia Longobardi, Prof. Florin Udrea
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Aibuild logo

Aibuild

Hiring
3D Printing

Aibuild develops AI-powered software that automates and optimises industrial-scale additive manufacturing, enabling fully automated toolpath generation and real-time process control across polymer, metal, and concrete 3D printing systems.

Stage: Series A
๐Ÿ“ London
๐Ÿ‘ค Daghan Cam, Michail Desyllas
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PowerMatrix logo

PowerMatrix

EnergyHardwareSemiconductors

PowerMatrix develops advanced power delivery systems for AI and data centres through innovations in semiconductors, circuits, materials, and packaging, achieving higher efficiency and smaller form factors than conventional power systems.

๐Ÿ“ Cambridge
๐Ÿ‘ค Borong Hu
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Seabound logo

Seabound

Climate TechClimateTransportation

Seabound develops retrofittable onboard carbon capture systems for ships that lock COโ‚‚ emissions in solid carbonate pebbles, providing an ocean-ready decarbonisation solution for the maritime industry.

๐Ÿ“ London
๐Ÿ‘ค Alisha Fredriksson, Roujia Wen
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Robok logo

Robok

RoboK develops AI-powered computer vision software that transforms existing industrial CCTV systems into intelligent monitoring platforms, detecting safety breaches and providing operational insights for ports, warehouses, and infrastructure sites.

๐Ÿ“ Cambridge
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Salience Labs logo

Salience Labs

Hiring

Salience Labs develops silicon photonics-based optical switches for AI data centres, enabling all-optical connectivity between compute nodes with low latency and high bandwidth to overcome data-movement bottlenecks.

๐Ÿ“ Oxford
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Arondite logo

Arondite

Hiring
Defence Tech

Arondite develops AI-powered software that connects and integrates disparate autonomous systems, robots, and sensors through a unified platform, enabling safer human-machine teaming for defence and security organisations.

Stage: Seed
๐Ÿ“ London
๐Ÿ‘ค Rob Underhill, Will Blyth
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Grayscale AI logo

Grayscale AI

Defence ManufacturingRoboticsDefenseAI

Grayscale AI develops neuromorphic AI systems that mimic human neural networks for edge computing applications, delivering up to 500 times greater energy efficiency than traditional computing architectures for complex real-time problem-solving.

Stage: Series A
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Kraken Technology logo

Kraken Technology

ShipbuildingMaritimeDefense

Kraken Technology develops high-performance autonomous maritime vessels using lightweight composite materials and modular design, delivering scalable production-ready platforms for littoral, surface, and subsurface defence and security operations.

๐Ÿ“ London
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Overwatch logo

Overwatch

Defence TechDefense

Overwatch Group designs, engineers, and manufactures unmanned aerial systems and precision strike munitions, delivering agile British defence technology including loitering drones and kinetic payloads for military and security operations.

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Outfield logo

Outfield

Agri TechAgriculture

Outfield provides drone-based orchard monitoring software that enables fruit growers to automate flight plans, capture aerial data, and receive detailed actionable insights within 24 hours for precision agriculture management.

๐Ÿ“ Cambridge
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Pictura Bio logo

Pictura Bio

Biotech

Pictura Bio develops a one-minute pathogen detection platform using computer vision and fluorescence microscopy, enabling point-of-care infectious disease diagnostics with a single universal reagent for all tests.

๐Ÿ“ Oxford
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Wayve logo

Wayve

Hiring
Autonomous Vehicles

Wayve develops embodied AI software for autonomous driving that learns from camera data and real-world experience without requiring HD maps or LiDAR, enabling scalable self-driving technology across any vehicle type.

Stage: Series C
๐Ÿ“ London
๐Ÿ‘ค Alex Kendall, Amar Shah
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Delian logo

Delian

Hiring
Defence Tech

Delian Alliance Industries builds autonomous anti-access/area denial systems that connect sensors to effectors for detecting and neutralising threats across land, air, and sea, including surveillance towers, electronic warfare modules, and loitering munitions.

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Helsing logo

Helsing

Hiring
Defence TechAI

Helsing develops AI-powered defence software and autonomous systems including reconnaissance-strike platforms, loitering munitions, and electronic warfare capabilities, integrating AI into existing military hardware for democratic governments across Europe.

๐Ÿ“ Munich
๐Ÿ‘ค Gundbert Scherf, Niklas Kรถhler, Torsten Reil
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Proxima Fusion logo

Proxima Fusion

Hiring
EnergyFusion EnergyClean EnergyClimate TechDeep TechFusion PowerStellarators

Proxima Fusion develops commercial fusion power plants using quasi-isodynamic stellarator technology, leveraging decades of research from the Max Planck Institute and combining optimised stellarator design with high-temperature superconducting magnets.

๐Ÿ“ Munich
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Isometric logo

Isometric

Hiring
Climate TechClimateCarbon Capture

Isometric operates a science-backed carbon removal registry that verifies and issues high-quality carbon credits, employing over two dozen interdisciplinary scientists and maintaining transparent, publicly auditable records for durable carbon dioxide removal projects.

๐Ÿ“ London
๐Ÿ‘ค Eamon Jubbawy
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Humanoid logo

Humanoid

Hiring
Robotics

๐Ÿ“ London
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