About Will Guillaume Foussier

Will Guillaume Foussier is the co-founder and CEO of AceUp. His belief that we can do well by doing good fuels his passion for empowering others through science-based, AI-powered leadership development and team coaching that AceUp deploys at scale. As a Harvard, EHL and Techstars alumnus, as well as a Forbes 30 Under 30 honoree, Will has a background in entrepreneurship, social impact, and finance. 

He founded AceUp out of the Harvard Innovation Labs to help organizations build human connections and thriving teams in the new world of work.

Since its launch in 2017, AceUp has raised more than $30 million and has been deployed in more than 100 organizations, including IBM, LVMH, L’Oreal, BNP, John Deere, WM, Teradyne, Essilorluxottica, PVH and many others.

Will is also a strategic advisor at the Institute of Coaching, affiliated with Harvard Medical School and McLean Hospital, and a founding member of the IOC of the Research Consortium for Human-Centered Leadership. He partners with global business and HR leaders all over the world to create cultures of coaching that unleash individuals’, teams’ and organizations’ full potential.

AceUp is the AI-powered Team Transformation Engine, leading provider globally of human-centered leadership© development solutions for individuals and teams. AceUp helps innovative, purpose-driven enterprises build high-performing teams at scale and upskill leaders at all levels to unleash their full potential. They combine AI-powered 1-on-1 leadership coaching, systemic team coaching and robust talent analytics to maximize team engagement, alignment and performance at scale. Their clients include LVMH, L’Oreal, IBM, Teradyne, Veolia, WPP, John Deere, Eutelsat, PVH, WM and Doctolib, among many others. AceUp was named one of the fastest-growing private companies by Inc. Magazine and featured on the Inc. 5000 list for 2022, 2023 and 2024.