FiberFin is a telecommunications company based in Yorkville, Illinois, specializing in plastic optical fiber (POF) products and services. They are known for their patented diamond finishing process for POF cable assemblies and termination equipment, offering custom cable assemblies, connectors, and active and passive components. FiberFin collaborates with standards organizations to implement POF in new applications and has a manufacturing facility with state-of-the-art equipment. They work closely with customers to provide expertise in POF applications and offer products using ESKA® and Mega ESKA® fiber lines from Mitsubishi International.