Greentech startup Pixel-Flo raises £5.3m led by Northern Gritstone with SCVC
This article covers Pixel-Flo, a greentech startup and University of Sheffield spinout, which has raised £5.3m in a seed funding round led by Northern Gritstone to move its Continuous-Flow Mass Transfer system out of the lab and into industrial-scale microLED manufacturing. The funding aims to help industrialise its mass transfer technique to address a key production bottleneck in microLED manufacturing and support adoption by display manufacturers and downstream consumer and industrial markets.
Pixel-Flo, a greentech startup and University of Sheffield spinout, has raised £5.3m in a seed funding round led by Northern Gritstone to take its Continuous-Flow Mass Transfer system out of the lab and into industrial-scale microLED manufacturing. The funding aims to address a persistent production bottleneck that has kept energy-efficient, high-brightness microLED displays from reaching mainstream devices.
Why it matters
MicroLED promises major gains over conventional displays — industry figures put brightness at two to five times higher and efficiency at two to four times greater — but the technology has been held back by the difficulty of transferring millions of tiny LEDs onto panels at scale and cost. If Pixel-Flo’s approach can be industrialised, it could lower processing and material costs enough to make microLED viable in everything from smartwatches to televisions, accelerating adoption across consumer and industrial markets.
Inside the product
Pixel-Flo’s core is a Continuous-Flow Mass Transfer system that uses fluidic self-assembly rather than mechanical pick-and-place. The company says this method keeps devices in continuous motion, enabling high throughput while reducing handling and material losses that drive up cost in mechanical processes. The technique builds on the industry-standard coating approach but aims to extend it into continuous, commercial-scale production — a step companies in the display supply chain have been seeking to make microLED competitive with OLED and LCD on price as well as performance.
The business will use the capital to move from laboratory demonstrations to an industrial coating system, expand its team and relocate to larger lab and office facilities. It has also hired Taiwan-based Sanger Hsu as vice president of business development to accelerate early customer engagement in a key display-manufacturing market.
Who are the investors?
The round was led by Northern Gritstone and included Syndicate Capital VC (SCVC), the Parkwalk Northern Universities Venture Fund and HTGF (High-Tech Gründerfonds). The company describes the deal as oversubscribed and positions the investors as an international consortium to support Pixel-Flo’s commercial scale-up and market entry.
In the announcement, Duncan Johnson, CEO at Northern Gritstone, said:
Pixel-Flo is a great example of the deep-tech innovation with global ambitions emerging from the Northern Arc that Northern Gritstone strives to support. As a graduate of our NG Studios venture building program, the company combines world-class science with a clear path to commercial impact. By developing a scalable, lower-cost solution, Pixel-Flo's MicroLED mass transfer assembly process has the potential to unlock MicroLED displays for the mass market.
In the announcement, John Williams, General Partner at SCVC, said:
Deep Tech is full of breakthrough technologies looking for a problem to solve. Pixel-Flo inverted that – an elegant solution to the bottleneck that has held microLED back, a display technology that outperforms on every metric. The syndicate around them reflects what the management team has already built.
In the announcement, Anne Umbach, Investor at HTGF, said:
From my experience in displays and printed electronics, I know all too well how challenging it is to scale new display technologies. Pixel Flo's approach targets precisely this critical bottleneck in the micro-LED market – and this team has what it takes to deliver a key technology for the next generation of displays.
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Founder perspective
Pixel-Flo was founded by Dr Rick Smith, Dr Suneal Ghataora and Simon Jones, drawing on photonic and LED research from the University of Sheffield’s School of Electrical and Electronic Engineering and Jones’s commercial experience in the display industry. The company also participated in Northern Gritstone’s NG Studios deeptech venture builder last year.
In the announcement, Rick Smith, Co-founder & CEO at Pixel-Flo, said:
This investment allows us to expand our team and demonstrate our unique technology on a commercial coating system, enabling partnership and evaluation by display manufacturing partners. We are proud to have a fantastic international consortium of complementary investors led by Northern Gritstone supporting our international ambitions to enable huge new market opportunities for microLED.
The bigger picture
The deal highlights continuing investor interest in hardware-focused deeptech emerging from the northern UK and the wider Northern Arc ecosystem. With participation from Parkwalk’s northern universities fund and Germany’s HTGF, the round also shows cross-border investor collaboration to back manufacturing-focused startups that can bridge lab research and production.
The outcome will be watched closely by display manufacturers and component suppliers across Europe and Asia. If Pixel-Flo can validate its throughput and cost claims on commercial equipment, it would remove a key barrier for energy-efficient microLED adoption and open new markets for UK-founded hardware innovation.
The funding is another example of how university spinouts and venture builders in the UK can attract international capital to scale capital-intensive deeptech — a dynamic that will remain important for the region’s ambitions in advanced manufacturing and greentech.
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