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Valuation$937M1
Valuation DateSep 30, 2026
Implied Valuationn/a
Last Pricen/a
52-Week Highn/a
52-Week Lown/a
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3-Year Returnn/a
Total Funding$188.35M2
Latest Round Amount$145M2
Latest RoundSeries C
Funding Rounds3
IPO StatusUnknown
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About CScale

CScale is a semiconductor startup developing optical interconnect technology that links the accelerator chips inside large AI clusters. Its product is an integrated light engine that puts lasers on the chip and uses fiber instead of copper to connect thousands of accelerators across dozens of racks. The design is meant to contain laser failures without interrupting compute, which the company sees as critical in gigawatt-scale AI data centers. CScale plans to make money by selling these interconnect chips to builders of AI systems and data centers. It has proof-of-concept systems with customers and plans to ship its chips by 2028. The company was founded in 2023 by Sanjai Kohli, co-founder of GPS chip pioneer SiRF, and is led by CEO Martin Lund, who previously ran Cisco's Common Hardware Group and Broadcom's switching business.

Founded 2023
Country United States
CEO Martin Lund
Employees 852
Founders Sanjai Kohli
Headquarters Palo Alto, CA

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News

CScale bets AI factories can ride out laser failures at gigawatt scale

CEO Martin Lund explains CScale's fully integrated optical interconnect, which is designed to keep AI compute running when individual lasers fail. He says the company has proof-of-concept systems with...

18 days ago - Fierce Network

CScale raises $145 million for AI networking, with backing from Nvidia and Intel

Reuters reported CScale raised $145M in Series C funding with strategic participation from Nvidia and Intel to develop optical interconnect for AI clusters.

23 days ago - Reuters

CScale Exits Stealth With $145 Million to Build the Interconnect for Gigawatt-Scale AI

CScale announced its Series C and stealth exit, co-led by Atreides, Valor Equity Partners, and Premji Invest, bringing total funding to $188 million.

23 days ago - Yahoo Finance

CScale Exits Stealth with $145M to Build the Interconnect for Gigawatt-Scale AI

CScale announced $145 million in Series C funding co-led by Atreides Management, Valor Equity Partners, and Premji Invest to commercialize optical interconnect for AI scale-up networks.

23 days ago - HPCwire

CScale Exits Stealth With $145 Million to Build the Interconnect for Gigawatt-Scale AI

CScale announced a $145 million Series C led by Atreides Management with Valor Equity Partners and Premji Invest, bringing total funding to $188 million. NVIDIA and Intel Capital joined as its first s...

23 days ago - CScale

CScale raises $145 million for AI networking, with backing from Nvidia and Intel

Reuters reports that CScale, formerly known as CSpeed, raised $145 million to connect AI chips with fiber-optic links instead of copper. CEO Martin Lund said the company plans to ship its chips by 202...

23 days ago - Reuters

Scale-up interconnect startup CScale launches with $188M in funding

CScale launched with $188 million in total funding to build optical interconnects that link thousands of accelerators across dozens of racks. The company describes its product as an integrated light e...

23 days ago - SiliconANGLE

Optical interconnect startup CScale emerges from stealth following investment from Nvidia and Intel

Palo Alto-based CScale exited stealth after a $145 million Series C with participation from Nvidia and Intel Capital. The startup is developing optical interconnect for AI scale-up networking.

23 days ago - DCD

CScale exits stealth with $145m to stop laser failures stalling AI

CScale came out of stealth with $145 million in Series C funding for optical interconnect that is designed to contain laser failures without interrupting AI compute.

23 days ago - The Next Web