Amperesand
Amperesand is a Singapore-based startup developing a medium-voltage solid-state transformer. They were spun out of Nanyang Technological University (NTU) through a pilot programme between NTU, the National University of Singapore, and Temasek.
 | |
| Status | Active |
|---|---|
| Website | https://amperesand.io/ |
| Vertical(s) | Energy |
| Latest Funding Round | Series A |
| Year founded | 2023 |
| Headquarters | Singapore |
| Active in | United States |
| Spun of from | Nanyang Technological University |
| Technology Readiness Level | Deployment (TRL 7-8) |
Technology
Amperesand infrastructure systems are built with solid-state transformer (SST) modules. Each module contains silicon carbide (SiC) devices and proprietary high-frequency transformers that are significantly more efficient, flexible, and resilient than traditional transformers. This modularity also allows scaling for various applications.
The product also cuts installation labour by half and shortens the time to power by 10x[1].
A 80% reduction in electrical footprint and simplified civil engineering requirements allows for faster and more flexible expansion of high powered facilities[1].
Intellectual Property
Amperesand is based on over a dozen patents developed by NTU scientists[2]. They have been part of Singapore's National Research Foundation (NRF) Energy Grid 2.0 programme since 2017.
Funding
Amperesand closed an oversubscribed Series A round in November 2025[1], raising US$80 million. The round was led by Walden Catalyst Ventures and Temasek.
| Funding History | |
|---|---|
| Investor | Round |
| Temasek | Series A |
| Walden Catalyst Ventures | Series A |
| Industry Ventures | Series A |
| Acclimate Ventures | Series A |
| SG Growth Capital | Series A |
| Xora Innovation | Series A |
| Material Impact | Series A |
| TDK Ventures | Series A |
| Foothill Ventures | Series A |
Note: This list is community-maintained and may be incomplete or contain inaccuracies.
Traction
In October 2024, PSA unboXed signed an agreement with Amperesand to deliver their first commerical units to Singapore's port as part of PSA Singapore's upcoming charging facilities for its fleet of electric prime movers [3].
Amperesand will also deliver additional units undisclosed hyperscale AI customers in 2026[1].
References
- ↑ 1.0 1.1 1.2 1.3 Ruoxue, Goh (2025-11-19). "Temasek leads US$80 million funding in power infrastructure provider Amperesand". The Business Times. Retrieved 2025-11-26.
- ↑ Zhu, Michelle (2023-11-01). "NTU launches first deep tech spin-out under S$75 million pilot programme with Temasek, NUS". The Business Times. Retrieved 2025-11-27.
- ↑ Tan, Justin (2024-10-29). "PSA unboXed Collaborates with Amperesand on Solid-state Transformer Technology Trials in Singapore". PSA International. Retrieved 2025-11-26.