Comcast

Comcast Corporation is an American telecommunications conglomerate founded in 1963, headquartered in Philadelphia, Pennsylvania. Comcast explores quantum-safe security for cable and telecommunications networks investing in post-quantum cryptography to protect communications infrastructure. In October 2025, Comcast launched a quantum lab and began trials using quantum computing to improve broadband network management, partnering with D-Wave Quantum Inc. and Classiq to test applications such as traffic optimization and predictive issue resolution, marking a significant step in applying quantum computing to telecommunications infrastructure. The company investigates quantum technologies for network security and prepares telecommunications infrastructure for quantum computing threats. Comcast serves US telecommunications and cable markets providing broadband internet cable television and telephony services. The company contributes to quantum-safe telecommunications development preparing network infrastructure for post-quantum security transitions protecting telecommunications networks and customer data against emerging quantum computing threats to current encryption standards.