Terahertz startup AttoTude raises US$50 million in Series B
AttoTude Inc. (Menlo Park, Calif.), a 2024 startup developing electronic interconnect technology for AI and datacenters, has raised US$50 million in a Series B round of funding.
The round was led by Mayfield, with participation from existing investors Sutter Hill Ventures, Canaan Partners, and Wing Venture Capital. This latest investment brings AttoTude’s total funding to $91 million, following its $30 million Series A in 2024 and $11 million seed round earlier that year.
The company claims it can use standard ASIC manufacturing processes to enable terahertz frequency electronic communications over wiring lengths of up to 40 meters.
The Series B funding will be used to scale manufacturing operations, expand customer engagements, and accelerate product development as AttoTude prepares for volume production. AttoTude is currently working with leading hyperscale and AI infrastructure companies on initial deployments.
“Our terahertz platform represents a paradigm shift that solves critical bandwidth, power, and reliability challenges,” said Dave Welch, CEO of AttoTude, in a statement.
The company was founded by Welch, a co-founder of Infinera and former CTO of SDL, and Joy Laskar, former professor at Georgia Institute of Technology and serial entrepreneur.
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