Optical Capital Group was a technology investment firm focused on optical equipment and related communications technologies. It set out to identify and develop next-generation fiber-optic technology companies for future communications networks.

Optical Capital Group formed or took interests in companies developing systems, subsystems, modules and components for access, metro, long haul and ultra-long haul markets. It invested in early-stage communications companies and typically led or co-led their Series A rounds, sometimes forming companies around a core team of technologists.