The useful read
hub vs country
┌─ generated from funding, org, model, compute, and overlap signals ─────────────────────────────── ┐
Boston sits inside United States, but still carries 0.58% of its AI funding signal.
Boston's biggest carrier is OpenEvidence: $700M (34.6% of tracked side funding). United States's biggest carrier is OpenAI: $170.8B (49.2% of tracked side funding).
The org chart switches to a carrier board because a treemap would exaggerate sparse or heavily skewed data.
Boston is included in United States; world-share dots and funding totals are shown as separate reference points, not additive market share.