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Incubated at Windmill · Longevity · HealthTech

xLongevity

The operating system for modern longevity

Windmill's role: Incubation, product design and go-to-market.

Visit xLongevity
Homepage of xLongevity, captured 23 August 2026

A connected platform for clients, coaches, clinics and longevity centres: diagnostics, continuous health data, guidance, supplements and centre-based interventions in one system.

The market

Longevity is fragmenting into clinics, coaches, diagnostics, supplements and wearables, each holding a slice of the same person's health data. The client experiences it as a series of disconnected appointments.

The problem

Connect continuous health data across parties who do not share systems, and turn it into something a client, a coach and a clinic can all act on.

What we built

A connected record and the workflows around it for clients, coaches, clinics and longevity centres — diagnostics, continuous monitoring, guidance, supplements and centre-based interventions in one system — built around continuous health data rather than one-off assessments.

Why it matters

In an emerging category the infrastructure position is more durable than the service position. The clinics will consolidate; whoever holds the connected record across them is harder to displace.