AttoTude Secures $52M in Series C Funding

The round also saw participation from Keysight, Allegis Capital, DNX, Sutter Hill Ventures, Mayfield, Canaan, and Wing Venture Capital.

The company plans to use the funding to move its technology from the research stage into product development, including building its prototypes and creating a scalable supply chain.

AttoTude is developing a new type of interconnect technology for large AI clusters that provides reliable, low-power, and high-density connectivity. The solution combines custom ASICs with low-loss dielectric waveguides to improve data transfer performance.

Built on an ASIC-over-dielectric architecture, the platform supports data rates of 200G, 400G, and 800G per lane. This allows it to deliver much higher performance than traditional copper-based connections.

The technology is designed to address a key challenge in AI infrastructure by providing scalable mid range connectivity without the high cost, power consumption, complexity and reliability issues often associated with optical solutions. It also offers a path to support future high-speed interfaces.

“AttoTude is executing a remarkably fast transition from breakthrough technology to product development at a time of immense market demand,” said Basil Alwan, Board of Directors AttoTude. “This progress reflects both the strength of the company’s management team, and the support of a high-caliber investor group committed to scaling this category-defining innovation.”

“AttoTude is uniquely positioned to deliver innovative interconnect solutions that address critical bottlenecks in the rapidly expanding AI ecosystem,” said Steve Westly, Managing Partner, The Westly Group. “With strong early customer engagement and impressive execution in such a short period, the AttoTude team achieved industry leading performance while enabling reduced energy consumption for modern AI clusters.”

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"New interconnect architectures like AttoTude's ASICs over Dielectrics technology will be critical to enabling higher performance and efficiency as AI infrastructure continues to scale at an unprecedented pace," said Joachim Peerlings, Vice President and General Manager of the Networks and Data Center Group of Keysight Technologies, Inc. "Keysight, the mission-critical design enablement partner for organizations solving the world's most complex engineering challenges, looks forward to continuing to collaborate closely with AttoTude to help develop this emerging frequency ecosystem."

“This financing marks a pivotal step as we transition AttoTude’s ASIC over Dielectric interconnect technology from transformative innovation to product, with our first product demonstrations coming this fall,” said Dave Welch, CEO and co-founder, AttoTude. “We’re excited to partner with an expanding group of world-class investors as we unlock the immense potential of ASIC-based connectivity over dielectric waveguides to deliver compelling performance and efficiency gains for next-generation AI infrastructure.”

About AttoTude

Founded in 2024, by Dave Welch and Joy Laskar, AttoTude is a Menlo Park, California based company developing next generation interconnect technology for AI and hyperscale data centers. Its platform combines advanced ASICs with low loss dielectric waveguides to deliver high bandwidth energy efficient connectivity at speeds of 200G, 400G and 800G per lane.

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