ODMs = System Integrators, if you're familiar with that term instead? There's several companies that will do large scale bespoke-design server manufacturing an

ODMs = System Integrators, if you're familiar with that term instead? There's several companies that will do large scale bespoke-design server manufacturing and assembly work. Amazon, Facebook, Microsoft et al. all order servers through them that are built to specifications their hardware engineers have designed (usually in collaboration with them). Once you get above a certain scale, the value proposition of OEMs goes out the window.