executivefounder

Celine Halioua

Founder and CEO, Loyal

Background

Celine Halioua is the founder and CEO of Loyal, a clinical-stage animal health company in San Francisco.

Loyal develops lifespan extension drugs for dogs and raised $100 million in a Series C round led by age1.

About Loyal

Loyal: Loyal is a clinical-stage animal health company developing lifespan extension drugs for dogs. It has raised over $250M, including a $100M Series C in February 2026.

Key facts

Current title: CEO, Loyalsource
Company founded: Late 2019source
Series C: $100 million, led by age1source
Series B: $45 million, led by Bain Capital Venturessource

WYDE coverage of Celine Halioua

WYDE Newsroom has published one article about Celine Halioua, on Apr 13, 2026. Celine Halioua is a named leader in 1 story. The most recent is Loyal's LOY-002 Clears Two of Three FDA Gates as the First Longevity Drug Approval in Any Species Nears.

Healthcare

Loyal's LOY-002 Clears Two of Three FDA Gates as the First Longevity Drug Approval in Any Species Nears

Loyal's LOY-002, a daily pill designed to extend healthy lifespan in senior dogs, has cleared two of three FDA technical gates after completing the largest clinical trial in veterinary medicine.

Apr 13, 2026 · 3 min read · Quoted or named as leader

Reported alongside Celine Halioua

Loyal · in 1 story with Celine Halioua
U.S. Food and Drug Administration · in 1 story with Celine Halioua

Sources

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