Quintessent, a startup making optical interconnects for data centers, raised a $40M Series A led by Cycle Capital, following its $11.4M seed round in 2024 (Maria Deutscher/SiliconANGLE)

Quintessent, a startup developing optical interconnects for data centers, secured a $40 million Series A financing led by Cycle Capital. The round follows an $11.4 million seed round completed in 2024, providing capital to advance its high-speed networking technology.