AccelerComm

Porotech

Porotech is a University of Cambridge spinout founded in 2018 following over a decade of research in gallium nitride materials, formally spun out in January 2020. Led by CEO Dr Tongtong Zhu with 15+ years of III-nitride semiconductor expertise, CSO Professor Rachel Oliver (Director of the Cambridge Centre for Gallium Nitride), and CTO Dr Yingjun Liu, the company created a novel porous GaN semiconductor material enabling next-generation micro-LED displays. The technology offers brighter, sharper displays for smartphones, smartwatches, AR/VR headsets, and outdoor environments. Porotech has raised $25.4M to date, including a £3M seed extension led by Speedinvest and a $20M Series A in 2022 led by Ameba Capital.

Cambridge GaN Devices

Cambridge GaN Devices was spun out from Cambridge University's Department of Engineering in 2016 by Dr Giorgia Longobardi (CEO) and Professor Florin Udrea (CTO). The fabless semiconductor company designs and commercialises gallium nitride power transistors and integrated circuits through its proprietary ICeGaN technology, enabling energy efficiency levels exceeding 99% and reducing energy consumption by up to 50% in applications including data centre power supplies and automotive electric vehicles. The technology builds on decades of GaN research at Cambridge, with Udrea's work recognised through induction into the ISPSD Hall of Fame. The company raised $32M in a Series C in February 2025, bringing total funding to over $60M from investors including IQ Capital, ParkWalk, BGF, Cambridge Innovation Capital, Foresight Group, and British Patient Capital.

PowerMatrix

PowerMatrix was founded in 2024 by Borong Hu, who brings over a decade of power electronics expertise including leading power converter development for GE's largest wind turbine and managing power supply innovation at Bitmain. Hu holds a PhD in power electronics from the University of Warwick and completed postdoctoral research at Cambridge, publishing 60 academic papers with 650 citations and winning the IEEE ECCE William Portnoy Award. The company develops advanced power conversion systems for AI and data centres, delivering 80% smaller form factors and 50% energy loss reduction compared to conventional systems. PowerMatrix's innovations span semiconductors, circuits, materials, and packaging to address multi-stage power conversion efficiency challenges.

Fractile

Fractile is a London-based AI chip startup developing in-memory computing processors designed to run large language model inference up to 100x faster and 10x cheaper than current GPU systems. Founded by Oxford Robotics Institute PhD graduate Walter Goodwin, the company's novel chip architecture fuses computation with memory to eliminate the data-shuttling bottleneck that limits conventional hardware. Fractile emerged from stealth in July 2024 and has since announced a £100M commitment to expand UK operations, including a new hardware engineering facility in Bristol. The team includes senior hires from NVIDIA, ARM, and Imagination Technologies.