Semiconductor technology firm Retym has emerged from stealth with more than $180 million raised across multiple rounds to drive AI infrastructure innovation. Retym specializes in programmable coherent digital signal processing solutions for cloud and AI infrastructure, which enables faster and more efficient transmission within and between AI data centers. In its latest round, the company secured $75 million in series D funding, with James Kuklinski, general partner of lead investor Spark Capital, joining Retym’s board of directors. The funding will support scaling to production and continued product development advancements as the company charts a multi-generation product roadmap to address growing bandwidth demand driven by AI.