Subco is a Privately Owned company headquartered in Australia. Founded in 2016, with approximately 10 employees, the company reported $1.3M in revenue as of 2023. The company specializes in data centre infrastructure, functioning as a provider of undersea network systems that connect Australia to the Middle East and other regions.
On March 19, 2026, SUBCO expanded its Australian footprint by introducing geographically diverse inter-capital connectivity and new data center access points, strengthening resilience across the country’s telecom infrastructure. The company confirmed its Sydney-Melbourne route now operates across two geographically independent paths, delivering true diversity along Australia’s busiest corridor. This followed SUBCO’s March 18 announcement of additional network route diversity between Sydney and Melbourne, alongside new data centre access points across major cities, with the connection combining subsea and terrestrial infrastructure on its two independent paths. Previously, on March 17, SUBCO moved to harden the resilience of the Sydney-Melbourne stretch of its east-west transcontinental Australian cable system (SMAP), stating the segment between east coast capitals would run across independent subsea and terrestrial paths. Earlier on the same day, SUBCO, an Australian subsea cable company, announced it expanded its Australian network footprint with additional route diversity between major cities and new data centre access points, indicating the Sydney-Melbourne route included two geographically independent paths combining subsea and terrestrial infrastructure to improve network resilience.
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