This week’s UK tech funding deals include payments infrastructure firm Primer, ear health platform TympaHealth and more.
UKTN tracked £128.2m worth of UK tech investment this week (18 May to 22 May), across nine funding rounds.
Here’s your weekly roundup of UK tech startup funding deals.
Primer – £75m
Sector: Fintech
HQ: London
Round: Series C
Investors: Sofina, Peak XV Partners, Balderton, Accel, ICONIQ, Tencent and Speedinvest
Founded in 2020, Primer is building an AI-enabled operating layer for global payments.
CircuitHub – £21m
Sector: Manufacturing
HQ: London
Round: Growth
Investors: Plural
Founded in 2011, CircuitHub operates an on-demand, software-driven electronics manufacturing network using AI, computer vision, and robotics to assemble and ship custom circuit boards in days.
Searchable – £10.3m
Sector: AI
HQ: London
Round: Growth
Investors: Headline
Founded in 2026, Searchable provides an AI performance marketing platform and growth command centre that tracks brand visibility on major AI engines to help businesses optimise for Answer Engine Optimisation (AEO).
GEEIQ – £5m
Sector: Gaming
HQ: London
Round: Series A
Investors: YFM Equity Partners, GFR Fund, Haymarket Ventures and angels
Founded in 2018, GEEIQ develops a virtual worlds intelligence platform providing unified cross-platform analytics across gaming platforms.
Imperagen – £5m
Sector: Biotech
HQ: Manchester
Round: Seed
Investors: PXN Ventures, IQ Capital and Northern Gritstone
Founded in 2021, Imperagen combines quantum simulation, custom AI models, and robotic laboratory automation into a closed-loop system designed to engineer tailored industrial enzymes rapidly.
Greenpixie – £4.7m
Sector: Cloud
HQ: London
Round: Pre-Series A
Investors: VERBUND X Ventures, Octopus Ventures, Armajaro Holdings and Green Angel Ventures
Founded in 2021, Greenpixie provides usage-based sustainability data and optimisation tools to help organisations track and reduce the carbon, water, and energy footprints of cloud and large-scale AI data centre deployments.
Rightbrain – £3m
Sector: AI
HQ: Newcastle
Round: Growth
Investors: Northern Powerhouse Investment Fund II (NPIFII) – PXN Equity Finance, Salica, NYDIG and angel investors
Founded in 2022, Rightbrain provides a software bridge platform that allows B2B services businesses to build, embed, and govern AI agents safely inside their existing CRMs and everyday digital workflows.
Infrawatch – £2.2m
Sector: Cybersecurity
HQ: London / Edinburgh
Round: Pre-Seed
Investors: Outward VC, Triple Point Ventures, Portfolio Ventures and angels
Founded in 2026, Infrawatch is building an internet infrastructure intelligence platform designed to continuously classify, track, and mitigate the persistent server and routing frameworks used by attackers to launch scams and cyberattacks.
TympaHealth – £2m
Sector: Medtech / Health tech
HQ: London
Round: Innovation Loan
Investors: Innovate UK
Founded in 2017, TympaHealth delivers a unified ear and hearing health platform that combines digital otoscopy, AI-assisted image capture, hearing screening, and microsuction tools to bring specialist care into community clinics.
