Brian Ellner

Brian Ellner is a seasoned professional in public affairs and strategic growth, currently serving as President at One Strategy Group since December 2023. Prior to this role, Brian held significant positions including U.S. Public Affairs Lead at WPP and various executive roles at BCW Global, focusing on growth and corporate purpose. Brian’s extensive background in public affairs includes leadership positions at Edelman and impactful work with the Human Rights Campaign, notably leading the campaign for marriage equality in New York. Earlier experience includes advising the Chancellor of the NYC Department of Education and serving as Litigation Counsel at O'Melveny & Myers. Brian holds a JD from Harvard Law School and a BA in History from Dartmouth College.