These are the people who run the companies on our review roster and the ones next to it: founders and chief executives of consumer blood-testing and imaging platforms, the leaders of the companies that make smart rings, fitness trackers and continuous glucose monitors, and the heads of the biotech companies working on aging itself. Readers look these names up when a company raises money, changes its price or makes a claim about what its product can tell you, and they want to know who is behind it before they pay.
A profile appears here when someone in that group makes the news. Each page is built from published sources only, every factual claim is checked against those sources before it ships, and later news is added to the same page as a dated section rather than as a second page about the same person.
Dan Buettner
Founder of Blue Zones
In the news: Former Texas Health Resources executive named to lead Blue Zones (October 6, 2026)
Brett McClung
Chief Executive Officer and President of Blue Zones
In the news: Former Texas Health Resources executive named to lead Blue Zones (October 6, 2026)
Kate Tolo
Co-Founder of Blueprint
In the news: Bryan Johnson Spent Millions to Reverse Aging. He Says a Filter Works Better (October 6, 2026)
Who gets a profile
The bar is a leadership role at a company whose product a reader of this site might actually buy or wear, or whose research bears directly on the categories we cover. That means founders, chief executives, presidents and chief medical or science officers of longevity-testing platforms, health wearables and longevity biotech companies, plus the founders of named longevity programs. Investors, commentators, clinicians quoted in passing and celebrities do not get a page here unless they founded one of those companies.
How these profiles are built
Detection starts with the news: a role change, a launch, a funding round or a public statement that names the person. Before a profile is written, the facts about them are collected from the reporting and from reference sources, each tied to the exact words that support it. The page may only state what those sources say, and a second, independent check compares every sentence and every number against them. Anything unsupported is removed, and a profile that cannot be supported is not published.
Some things never appear on these pages: net worth, pay, age, family, personal health and unproven accusations. We report what a person and their company have said and done in public. A founder describing what their test or device can do is reported as their claim, attributed to them, and is not an endorsement. When you want to know whether a product is worth buying, the platform reviews and our methodology are the place to look.
Related
- Longevity platforms, compared: all on one rubric
- Wearables: what the rings, trackers and monitors measure
- News: dated briefings on the companies we benchmark
- How we review