Anyone segmenting chip buyers by use case vs. just company size?

Yes, and use-case segmentation almost always wins for chips specifically — company size tells you almost nothing about purchasing behavior when a $10B company buys both commodity MCUs and bleeding-edge AI accelerators. We layered application vertical on top of firmographics last year for a semiconductor client and the application split explained 3x more variance in vendor preference. Start with end-market (auto, data center, consumer) as your primary cut, then use company size as a secondary filter.