Submer Secures $55.5 Million Investment to Innovate Data Center Cooling Solutions

Submer, a Barcelona-based company, has successfully raised $55.5 million in a recent funding round aimed at expanding its pioneering immersion cooling technology for data centers. This innovative solution addresses the escalating energy demands of data centers, which are projected to consume up to 10% of the world's electricity by 2025 and significantly contribute to greenhouse gas emissions.

The investment round was led by Planet First Partners, alongside existing investors like Norrsken VC and Alma Mundi Ventures. This influx of capital will bolster Submer's expansion efforts into North America and the Asia-Pacific region, and further enhance research and development initiatives focused on next-generation liquid coolants and data center automation.

Founded in 2015, Submer offers a unique cooling system where server racks are submerged in biodegradable, non-conductive liquids. This method not only reduces energy consumption by 50% compared to traditional air cooling systems but also significantly lowers water usage—by as much as 99%—and minimizes the physical space required for cooling equipment. The company’s technology has already attracted clients such as Telefónica and is endorsed by major tech players, including Intel​(

As the demand for data processing capabilities continues to surge, driven by trends like AI and cloud computing, the need for more efficient and environmentally friendly cooling solutions becomes critical. Submer's approach is poised to meet these challenges while providing substantial cost savings for data center operators and aligning with the increasing regulatory pressure to reduce carbon footprints.

In an industry where traditional cooling methods are becoming insufficient, Submer’s innovation not only promises operational efficiency but also contributes to sustainable practices in data center management, addressing both economic and environmental concerns. This funding round positions Submer at the forefront of a critical transition in the tech landscape, one that prioritizes sustainability alongside technological advancement.