CapitalG and Sutter Hill Ventures led $140m Series A and B funding in Celero Communications.

CapitalG, a growth capital fund, and Sutter Hill Ventures, a venture capital firm, led $140m Series A and B funding in Celero Communications, a developer of an advanced coherent DSP solutions, with participation from Valor Equity Partners, Atreides Management and Maverick Silicon. “This investment underscores the confidence investors have in Celero’s mission to redefine how AI infrastructure connects and scales. As AI models and clusters grow exponentially, today’s data centers face severe limits in bandwidth, cost, and energy efficiency. Our coherent DSP technology delivers the optical performance and scalability needed to remove these bottlenecks, establishing the foundation for large-scale, accelerated computing networks," Nariman Yousefi, Celero Co-Founder and CEO.