Claros, a Torrance, CA- and McLean, VA-based power management solutions company, has raised $30 million in a Seed funding round led by General Catalyst and Red Cell Partners.
The round also saw participation from new and existing investors like Systemiq Capital, Aero X Ventures, Trenches Capital, and others.
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The company plans to use the funds to expand its lab, grow its team, continue developing IVR and Power Gateway prototypes, and start its first manufacturing runs. These efforts aim to reduce energy waste and improve productivity, cost savings, and power efficiency in U.S. data centers.
The demand that data centers place on power grids is unsustainable, and relying on piecemeal power for new projects is inefficient. Claros addresses these challenges with its chip-to-grid platform, which includes an integrated voltage regulator (IVR) that powers processing units directly, and a DC-native Power Gateway that reduces AC/DC conversion losses, and works smoothly with power sources, helping data centers deploy faster and run more efficiently.
Since coming out of stealth with $9.75 million in initial funding in February 2025, the company has:
- Built three IVR designs, now being tested in the company’s Los Angeles-area lab; a fourth design will be made this spring based on customer needs.
- Finished initial hardware and software designs for Power Gateway, with a demo unit assembled for lab testing.
- Expanded the team by 26 people across the Los Angeles lab and Northern Virginia office.
The first IVR design, called T0, confirmed that the architecture works as planned and closely matches internal models.
The second, more advanced IVR design, A1, is currently being tested, with results expected soon. This design forms the foundation for a proprietary mesh network that can scale power delivery from a single 40-amp module to clusters providing over 40,000 amps.
Together, IVR and Power Gateway tackle both sides of the data center energy challenge: delivering power efficiently to chips and managing power at the facility level.
“We can’t ignore the huge energy demands of AI workloads, and the strain they put on power grids worldwide. To address this, we need to rethink the entire power system and reduce energy waste so data centers can run more efficiently,” said Claros Co-Founder and CEO Daniel Kultran. “At Claros, we focus on responsible power delivery—from the chip to the meter. In the 13 months since coming out of stealth, we’ve made strong progress toward efficiency gains, and our IVR is just the first step in helping data centers source, store, and use power more efficiently end-to-end.”
“The power infrastructure for AI is one of the biggest investment opportunities today,” said Paul Kwan, Managing Director at General Catalyst. “Solving it means rethinking the whole energy stack with a team that has deep technical expertise. In just 13 months, Daniel Kultran and the Claros team have made impressive progress in modernizing power delivery from the chip to the grid.”
“Improving power delivery at the chip level is key to boosting the next generation of data center performance,” said Irena Spazzapan, Managing Partner at Systemiq Capital. “What impressed us was Dan and the team’s experience in power electronics and their vision for the full power system, from chip to grid. Claros is exactly the type of frontier company we are proud to support.”
About Claros
Founded in 2024, by Dan Kultran and Grant Verstandig, Claros is a power management company using innovative hardware and software to make AI infrastructure more efficient, resilient, and sustainable. By simplifying power delivery and reducing energy use, the company aims to boost compute performance, and maximize the efficiency of AI operations.
About Red Cell Partners
Founded in 2020 by Grant Verstandig, Red Cell Partners is a venture studio that builds fast-growing, technology-driven companies in healthcare, cybersecurity, and national security. United by a sense of purpose and a belief in innovation, Red Cell develops tools and solutions to tackle some of the nation’s most urgent challenges.
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