Spark, Mayfield, and Kleiner Perkins pour another $75M into AI data center chipmaker Retym | TechCrunch
Mar 31, 2025 - techcrunch.com
Retym, a U.S. chipmaker with Israeli roots, has raised $75 million in a Series D funding round led by James Kuklinski of Spark Capital, with participation from existing investors Mayfield and Kleiner Perkins. This brings Retym's total funding to $180 million. The company, founded in 2021, is developing a "programmable coherent digital signal processing DSP" chip aimed at improving data center communication both internally and externally. While not a direct competitor to Nvidia GPUs, Retym's technology addresses the increased demand for faster and more efficient data centers due to the rise of AI.
Retym's CTO and co-founder, Roni El-Bahar, aims to introduce competition in the DSP market, which is currently dominated by companies like Marvell Technology. The startup is utilizing TSMC's 5 nanometer fab for its first chip, which is currently in testing. Retym has maintained a low profile until now, with El-Bahar recently publishing a blog post outlining the company's mission to challenge the existing DSP market leaders.
Key takeaways:
Retym, a U.S. chipmaker with Israeli roots, raised $75 million in a Series D round led by Spark Capital, bringing its total funding to $180 million.
The company is developing a "programmable coherent digital signal processing DSP" chip to enhance data center communication, not directly competing with Nvidia GPUs.
Retym aims to introduce competition in the DSP market, which is currently dominated by companies like Marvell Technology.
The company's first chip is being tested using TSMC's 5 nanometer fab technology.
