Hartley Ultrafast raises £500k in pre-seed funding to scale optoelectronic computing systems.
Strange Ventures led the pre-seed round, which was closed in six weeks using the ThatRound platform.
Hartley Ultrafast develops optoelectronic computing systems that combine photons and electronics to accelerate AI inference and data processing.
Hartley Ultrafast has secured £500k in pre-seed funding to accelerate its optoelectronic computing technology. The round was led by Strange Ventures, with participation from Sowing Capital and OVC Ventures.
The capital will support the company as it scales its operations following a recent rebrand and the unveiling of its demonstrator machine, Babbage. Hartley Ultrafast intends to maintain its focus on product and commercial development.
The raise was completed in just six weeks via the ThatRound platform, highlighting the growing demand for low-latency AI infrastructure and hardware solutions.
From the founder
"The ThatRound platform helped us accelerate our raise — we closed £500k of our pre-seed in just under a couple of months. The ability to easily find, compare, and apply to different investor syndicates and angel groups saved us enormous time and energy."

Josh Silverstone
Founder & CEO at Hartley Ultrafast
Investor perspective
"Hartley represents exactly the kind of opportunity we look for: a high-conviction, asymmetric opportunity backed by exceptional IP and a world-class team. The speed and exclusivity of the round reinforced our belief that this is a business with real momentum."
Harrison Faull
Managing Director, OVC Ventures
Use of funds
- 01Continue product development
Investors
Categories
About the company
Hartley Ultrafast
Hartley Ultrafast builds optoelectronic computing systems for ultra-low-latency AI inference.

