Claros announced today it has raised an oversubscribed $30 million seed round co-led by General Catalyst and Red Cell Partners with participation from new and existing investors like Systemiq Capital, Aero X Ventures, Trenches Capital, and others.

The demand that data centers place on power grids and electricity providers is unsustainable, as is the requirement for data center operators to settle for piecemeal generation for new construction projects. Claros is easing these problems with its chip-to-grid platform. That platform consists of an integrated voltage regulator (IVR), which delivers power directly to processing units, and Power Gateway, a DC-native power distributor that minimizes AC/DC conversion losses and integrates seamlessly with power sources, enabling data centers to deploy faster and operate more efficiently.

“We can’t ignore the immense energy demands that come with AI workloads and the strain they place on electrical grids throughout the United States and around the world. To address these concerns, we must reinvent the entire power system with meaningful solutions that minimize energy waste so data centers can unlock greater efficiency and productivity,” said Claros Co-Founder and CEO Daniel Kultran. “At Claros, we are committed to responsible power delivery—from the chip all the way to the meter. In the 13 months since our launch out of stealth, we’ve worked tirelessly to resolve this issue, demonstrating significant progress toward efficiency gains that point to a larger opportunity across the entire power stack. Our IVR is only the starting point in our quest to help data centers more efficiently source, store, and use power end-to-end.”

“The power infrastructure supporting AI is one of the most significant investment opportunities of our time,” said Paul Kwan, a managing director at General Catalyst. “Solving it requires rethinking the entire energy stack and a team with unique experience and technical depth to transform power management. In just 13 months, Daniel Kultran and the Claros team have made tremendous progress in modernizing power delivery from the chip to the grid."

Since the company emerged from stealth with $9.75M in initial funding in February 2025, it has:

• Fabricated three IVR designs, which are currently being tested in the company’s Los Angeles-area lab. A fourth IVR design will be submitted for fabrication based on customer requirements this spring
• Completed initial hardware and software designs for Power Gateway, with a demonstration unit assembled for lab testing
• Added 26 team members across its Los Angeles lab and Northern Virginia office

The first IVR design, dubbed T0, confirmed that the architecture worked as expected and showed a high correlation with internal modeling.

A1, a second, more advanced IVR design is currently on the test bench with results due soon. This design serves as the basis for a proprietary mesh network architecture that enables designers to scale power delivery from a single 40-amp module to clusters capable of delivering over 40,000 amps.

Together, IVR and Power Gateway address both sides of the data center energy problem: how power is delivered to the chip and how it is sourced and managed at the facility level.

"Better power delivery at the chip level is essential to unlocking the next generation of data center performance,” said Irena Spazzapan, managing partner at Systemiq Capital. “What stood out to us was Dan and the team's track record in power electronics and their vision for the full power architecture, from chip to grid, making Claros exactly the kind of frontier company we are proud to back."

With the new funding, Claros will expand its lab, grow the team, continue prototyping IVR and Power Gateway, and begin its first manufacturing runs, all in its effort to minimize energy waste while enabling greater productivity, cost savings, and more efficient power consumption in American data centers.

About Claros

Claros is a power management solutions company that’s leveraging innovative hardware and software to make AI infrastructure more efficient, more resilient, and more sustainable. By driving down the cost and complexity of power delivery and leveraging innovative hardware and software, the company seeks to decrease energy consumption, optimize power delivery, increase compute performance, and maximize the efficiency of AI operations. Founded in 2024, Claros is backed by Red Cell Partners, General Catalyst, VIPC, and others. Visit us at claros.tech and follow us on Linkedin.

About General Catalyst

General Catalyst is a global investment and transformation company that partners with the world’s most ambitious entrepreneurs to drive resilience and applied AI. We support founders with a long-term view who challenge the status quo, meeting them where they are, and partnering with them from seed to growth stage and beyond. With offices in San Francisco, New York City, Boston, Berlin, Bangalore, and London, we have supported the growth of 800+ businesses, including Airbnb, Anduril, Anthropic, Applied Intuition, Commure, Glean, Guild, Gusto, Helsing, Hubspot, Kayak, Livongo, Mistral, Ramp, Samsara, Snap, Stripe, Sword, and Zepto.

For more: www.generalcatalyst.com, @generalcatalyst

About Red Cell Partners

Red Cell Partners is a venture studio building rapidly scalable technology-led companies that are bringing revolutionary advancements to market in healthcare, cyber, and national security. United by a shared sense of duty and deep belief in the power of innovation, Red Cell is developing powerful tools and solutions to address our Nation’s most pressing problems. Visit us at redcellpartners.com and follow us on social media (LinkedIn, X, Instagram).

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"We must reinvent the entire power system with meaningful solutions that minimize energy waste so data centers can unlock greater efficiency and productivity."