Amperesand Secures $80M Series A Led By Walden Catalyst Ventures and Temasek To Transform Power Infrastructure For AI Data Centers

Amperesand, a company focused on building next-generation power infrastructure for AI data centers and other critical power applications, has announced the successful close of an $80 million Series A funding round. The round was co-led by Walden Catalyst Ventures and Temasek, and attracted strong interest from both new and existing investors. New participants included Industry Ventures, Acclimate Ventures, and SG Growth Capital, joining continued supporters such as Xora Innovation, Material Impact, TDK Ventures, and Foothill Ventures. The round was oversubscribed, reflecting the growing demand for advanced power systems that can keep pace with global AI expansion.

At the core of Amperesand’s technology is its Medium Voltage Solid-State Transformer (MV SST) platform. This system represents a major advancement in how high-power infrastructure is designed and deployed. It offers significantly higher power density, improved energy efficiency, and scalable performance suitable for AI data centers, national defense needs, and megawatt-level charging solutions. With the new funding, the company is preparing to deploy 30MW of commercial systems in 2026, focusing particularly on hyperscale AI companies that require rapid power availability, exceptional reliability, and support for extremely dense computing loads. To meet rising demand, Amperesand is expanding its engineering and manufacturing operations across the United States and Singapore.

Investors believe Amperesand’s work is crucial at a time when global power infrastructure is struggling to meet the needs of rapidly growing AI workloads. The demand for electricity has risen sharply, and traditional electrical equipment such as transformers, switchgear, and UPS systems now take an average of 12 to 24 months to procure, compared to much shorter timelines just a few years ago. Without smarter and more efficient power delivery systems, large AI facilities risk creating grid instability and facing delays in receiving interconnect approvals.

Amperesand’s MV SST platform is designed to address these challenges directly. The system combines hardware, software, and intelligent controls into a single compact unit, reducing installation labor requirements by half and speeding up time to power by up to ten times compared to traditional solutions. The design also reduces the physical footprint of electrical infrastructure by more than 80 percent, enabling faster and more flexible development of high-power facilities. With its regionalized supply chain, AI-native control software, advanced cybersecurity protections, and patented power electronics, the platform is ready for widespread global deployment without compromising grid stability.

According to Brian Dow, the company’s CEO and Co-Founder, Amperesand is committed to rethinking how medium-voltage power is delivered to essential systems such as AI data centers, defense assets, and large industrial operations. He emphasized that the MV SST platform supports secure data handling, regional supply chains, and cost-efficient local manufacturing. The technology is also designed to operate both on and off the grid, strengthening energy resilience as more high-power loads are introduced worldwide.

Amperesand is already seeing strong commercial traction. Its first commercial units are scheduled for delivery in early 2026 to the Port of Singapore, where they will support a mission-critical charging pilot in partnership with PSA International. Additional commercial pilots with hyperscale AI customers are also planned for 2026, helping these organizations accelerate the deployment of next-generation GPUs using Amperesand’s power architecture.

The company has built its progress on a solid technical foundation. Amperesand originated from Xora Innovation and Singapore’s Nanyang Technological University in 2023, leveraging eight years of research in solid-state transformer technology. In 2024, the team completed extensive testing of its Generation 2 system at full power, including overload and bidirectional performance, forming the basis of its commercial MV SST platform. In 2025, the company expanded significantly in the United States, establishing engineering and advanced manufacturing centers in San Francisco and Reno.

By the end of the year, Amperesand expects to surpass 100 employees globally, strengthening its capacity to deliver advanced power systems at scale. Investors believe this momentum places the company in a strong market position. According to Xora Innovation, Amperesand has advanced its MV SST product faster than expected across metrics such as power density and cost. With the newly secured funding and several deployments scheduled for 2026, the company is positioned to extend its leadership in the solid-state transformer category.