Amperesand has secured US$80 million in Series A funding to accelerate the commercial rollout of its Medium Voltage Solid State Transformer platform, a technology designed to address rising power demands from AI data centres and other critical infrastructure. The round was co-led by Walden Catalyst Ventures and Temasek, with new backing from Industry Ventures, Acclimate Ventures and SG Growth Capital. Existing investors Xora Innovation, Material Impact, TDK Ventures and Foothill Ventures also took part.
The company positions its MV SST platform as a significant step forward in power density, efficiency and scalability. These capabilities target sectors facing increasing strain from surging AI workloads, including hyperscale data centres, defence systems and large-scale charging applications. Amperesand plans to deploy 30MW of commercial systems in 2026, with a strong focus on customers facing urgent power, reliability and compute density needs.
Young Sohn, Founding Managing Partner at Walden Catalyst Ventures, said, “AI is redefining the limits of computing. But without a revolution in power infrastructure, this growth simply can’t scale. Amperesand is tackling one of the biggest bottlenecks in data centre power delivery by leveraging new high-power, semiconductor-enabled technologies for faster, more efficient, and more sustainable access to energy.”
Addressing global energy constraints
The rapid growth of AI has significantly increased electricity demand across global data centre networks. Lead times for traditional electrical components such as transformers, switchgear and uninterruptible power supply systems have risen sharply since 2019, now averaging 12 to 24 months. This has become a key obstacle for organisations needing to expand capacity at speed.
Amperesand aims to remove these bottlenecks with a unified hardware and software design that integrates intelligent controls into a compact system. The company says its MV SST platform cuts installation labour requirements by half, reduces electrical footprint by more than 80 per cent and shortens time to power by up to ten times. The design is also intended to simplify civil works and offer greater deployment flexibility for high-power sites.
The company emphasises its reliance on regional supply chains and secure operations. Its platform combines AI-native controls, advanced cyber security measures and a patented power electronics architecture to help customers scale without compromising grid stability.
Brian Dow, CEO and Co-Founder of Amperesand, said, “Amperesand is obsessed with revolutionising Medium Voltage to critical load power delivery for next generation AI data centres, defence, and other essential electrified assets. We focus on first principles to achieve market leading power density, efficiency, and reliability. In this era of AI data centre and other critical power systems becoming economic and national security interests for many countries, Amperesand’s MV SST Platform enables in-country cyber-secure controls and data, regionally available supply chains, and low CAPEX intensity local manufacturing. Our solution is an intelligent, universal Medium Voltage power source that works on-and-off grid to improve critical infrastructure resilience as new large electrical loads come online.”
Expansion, pilots and scaling plans
Amperesand is preparing to deliver its first commercial units in early 2026 to the Port of Singapore, where it will support a charging pilot with PSA International. Additional commercial pilots scheduled for the same year will focus on helping hyperscale AI customers deploy next-generation GPUs more quickly through the company’s power architecture.
The company was spun out of Singapore’s Nanyang Technological University in 2023 after eight years of research into solid-state transformer technology. It completed full-power, overload and bidirectional testing of its second-generation system in 2024, forming the foundation for its commercial MV SST platform.
In 2025, Amperesand expanded its presence in the United States with engineering and manufacturing hubs in San Francisco and Reno. It expects to grow its workforce to more than 100 employees globally by the end of the year, strengthening its ability to scale production and meet demand.
Phil Inagaki, Managing Partner and Chief Investment Officer at Xora, said, “Over the past two years, Amperesand’s rate of progress on advancing MV SST productisation across key metrics such as power density and cost has exceeded our expectations. The company is now ready to deploy a product that will completely redefine power infrastructure across mission-critical industries. With US$80 million in fresh funds and an aggressive deployment schedule in 2026 across multiple customers, we expect Amperesand will extend its lead as the SST category leader.”
