ParkWalk

AccelerComm is a Southampton-based semiconductor IP company spun out of the University of Southampton's Electronics and Computer Science department in 2016 by Professor Rob Maunder and Dr Taihai Chen. The company commercialises forward error correction and channel coding algorithms for 5G, 6G, and satellite non-terrestrial networks, with products including high-performance LDPC and POLAR error correction IP. AccelerComm's technology powers over 200 production satellites currently in orbit, with customers including Vodafone, Intel, AMD, and National Instruments. The company raised a total of $52.8M, including a £21.5M Series B in 2023 led by ParkWalk, SwisscomVentures, and Hostplus, and a subsequent $15M round in 2025.

Paragraf

Advanced Materials·Series C

Paragraf is a University of Cambridge spinout founded in 2017 by Simon Thomas (CEO), Professor Sir Colin Humphreys, and Ivor Guiney. The company commercialises graphene and other two-dimensional materials at scale using standard semiconductor fabrication equipment, with a proprietary direct deposition technique that produces device-quality graphene on 8-inch wafers without metal catalysts or transfer processes. Paragraf launched its first product in 2019, a graphene-based Hall-effect sensor offering 30x greater sensitivity than conventional silicon at one-tenth the power. The sensor portfolio has expanded to include molecular sensors for healthcare, agritech, food production, and chemical manufacturing. The company has raised over £140M across four rounds, including a $55M Series C in 2025 led by Mubadala.

Molyon

Energy·Seed

Molyon is a University of Cambridge spinout from the Department of Materials Science and Metallurgy developing next-generation lithium-sulphur batteries with double the energy density of conventional lithium-ion cells. The company emerged from 15 years of research by Professor Manish Chhowalla, focusing on metallic molybdenum disulfide as a breakthrough cathode technology. Founded in February 2024 by Dr Ismail Sami (CEO) and Dr Zhuangnan Li (CTO), who met while studying under Chhowalla, the startup has demonstrated batteries achieving energy densities of 500 Wh/kg compared to approximately 250 Wh/kg for typical Li-ion cells. In November 2024, Molyon secured €4.3M in seed funding co-led by IQ Capital and Plural, with participation from Cambridge Enterprise and ParkWalk, targeting initial applications in drones and robotics.

Cambridge GaN Devices

Hiring

Semiconductors·Series C

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.

Robok

Robotics·Seed

Robok is a Cambridge-based startup that develops AI-powered computer vision software to transform existing industrial CCTV systems into intelligent monitoring platforms. Founded in 2017 by Hao Zheng and Liangchuan Gu as a spinout from the University of Cambridge, the company's technology detects safety breaches and provides operational insights for ports, warehouses, and critical infrastructure sites. Robok's customers include Bristol Port Company and other major logistics operators. The company has raised £3.3M to date from investors including Amadeus Capital, DeepTech Labs, Martlet Capital, Parkwalk Advisors, and Cambridge Innovation Capital, plus grant funding from UKRI and Innovate UK.