What is Phlux Technology?
Founded in 2020 as a spin-out from the University of Sheffield, Phlux Technology specializes in the development of advanced infrared sensor solutions. The company's flagship Aura family of Noiseless InGaAs APDs represents a significant leap forward in photonics, offering up to 12 times the sensitivity of traditional industry-standard components. By effectively reducing system size and cost while simultaneously extending operational range, Phlux is positioned as a critical enabler for next-generation optical fiber testing and autonomous sensing systems. The firm operates at the intersection of deep tech and industrial hardware, providing the essential building blocks for high-precision optical instrumentation.
How much funding has Phlux Technology raised?
Phlux Technology has raised a total of $15.4M across 2 funding rounds:
Angel/Seed
$4M
Series A
$11.4M
Angel/Seed (2022): $4M with participation from Octopus Ventures and UK Research & Innovation
Series A (2025): $11.4M led by Octopus Ventures, Foresight Group, and BGF
Key Investors in Phlux Technology
Octopus Ventures
A founder-focused venture capital firm that backs mission-driven companies across software, climate, health, and financial technology, providing long-term capital and strategic guidance.
Foresight Group
A leading independent infrastructure and private equity investment manager based in London with a long-standing history of supporting growth-stage enterprises.
BGF
An influential investor in small and mid-sized businesses in the UK, providing flexible capital to support companies across every region and sector of the economy.
What's next for Phlux Technology?
With this major enterprise-level funding, Phlux Technology is poised to accelerate its commercialization strategy and expand its manufacturing footprint. The strategic focus will likely center on scaling production capacity to satisfy the growing demand for high-resolution LiDAR systems in the automotive and industrial sectors. Furthermore, the company is expected to leverage this capital to deepen its research and development efforts, potentially exploring new material science applications that could further disrupt the infrared sensing landscape. As Phlux moves into this next phase of growth, the emphasis will remain on maintaining its technological edge while establishing a dominant market presence in the global photonics supply chain.
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