For a century the American Heart Association answered to other health charities. The contest is no longer decided there. When a woman wants to understand her heart on a given Tuesday, she glances at the ring on her finger, reads the lab results in an app, or asks a telehealth service. The Heart Association now competes for that daily moment against two groups at once: the peer nonprofits it has always measured itself against, among them the British Heart Foundation, the American Cancer Society, and the Alzheimer's Association; and the newer consumer-health companies selling wearables, lab-testing subscriptions, and apps, among them Function Health, Apple Health, Oura, Whoop, Levels, and Hims & Hers. The Heart Association funded the science that explains what these products measure. The products own the screen where people read the answer.
How the ranking works. The Structural Brand Power Index (SBPI) scores each organization from 0 to 100 across five weighted measures, awareness, trust, mission clarity, differentiation, and loyalty, then ranks them against the others competing for the same heart-health attention. For health causes the weighting emphasizes trust at 35 percent and mission clarity at 30 percent, then awareness at 15 percent, with differentiation and loyalty at 10 percent each. The same five measures drive the brand scorecard, so the ranking and the scorecard tell one connected story.