Anritsu

Anritsu Corporation is a Japanese telecommunications test and measurement equipment manufacturer founded in 1895, headquartered in Atsugi, Kanagawa. Anritsu provides test equipment for quantum communication systems including optical network analyzers, signal analyzers, and specialized measurement instruments for quantum key distribution (QKD) networks and quantum communication infrastructure validation. The company develops testing solutions for quantum-safe telecommunications and post-quantum cryptography implementations. Anritsu serves telecommunications operators, quantum technology companies, research institutions, and quantum network developers requiring precision test equipment for quantum communication systems. The company contributes to quantum communications infrastructure development providing essential test and measurement capabilities for quantum networking deployments and quantum-safe telecommunications validation advancing quantum technology commercialization in telecommunications sector.