Sesterce

Sesterce is a compute infrastructure company founded in France in 2018. It began with crypto mining and mining-farm operations across sites in Bosquel, Valence and Paris, before shifting its focus to artificial intelligence compute and energy infrastructure, a move made possible because both businesses draw on the same grid connections, cooling and site operations capability.

The compute side consists of self-built data centres, clean energy connections and GPU clusters using accelerators such as NVIDIA GB300, H200 and B200, with nodes interconnected by 800 Gb/s InfiniBand and a proprietary cluster operating system handling scheduling and tenant isolation above, delivered to customers at either per-GPU-hour or full-rack granularity. Two changes to its business structure appeared in 2026: on 1 June it signed a joint venture agreement with Japan's SoftBank Group covering construction of a data centre at the 1 GW scale, and in May it added a senior vice president role for the data centre business.