Ampere Computing

Ampere Computing designed Arm-based server CPUs for cloud and AI-host workloads, backed originally by Carlyle and Oracle. SoftBank agreed to acquire Ampere for $6.5 billion in March 2025 and completed the all-cash acquisition in November 2025, making it a wholly owned SoftBank subsidiary. Ampere's AmpereOne CPUs remained in production and commercial deployment through the 2025 acquisition, continuing to ship under the Ampere brand post-close.

Ecosystem functionAn independent Arm server-CPU challenger absorbed into SoftBank's AI infrastructure stack alongside Arm itself — a major 2025 consolidation event.

Business modelSold Arm server CPUs; now SoftBank subsidiary