Adrian Zackheim

Founder, President, and Publisher

Adrian Zackheim joined Penguin Group in September 2001 as Founder and Publisher of Portfolio. He then took on the additional challenge of starting Sentinel in April 2003. In 2018, he announced the addition of another new imprint to the group: The Optimism Press, in collaboration with Simon Sinek.

Previously, he was the Associate Publisher and Editor-in-Chief of HarperInformation, a division of HarperCollins that included HarperBusiness. His editorial career has also included positions at William Morrow, Doubleday, and St. Martin’s Press, and his first job was as School and Library Publicity Assistant at G.P. Putnam’s Sons, which was then a privately held small publishing company. He later moved to Putnam’s Editorial department under the leadership of Editor-in-Chief Phyllis Grann.

Among the many bestselling books he edited and published before joining Penguin Group were Good to Great by Jim Collins; Die Broke by Stephen Pollan and Mark Levine; The Dilbert Principle by Scott Adams; The HP Way by David Packard; and Swim with the Sharks without being Eaten Alive by Harvey Mackay.

Niki Papadopoulos

Editorial Director

Niki Papadopoulos joined Portfolio in 2011 as a Senior Editor, and is a passionate advocate for business as a tool for empowerment, innovation, and social good. In addition to overseeing general acquisition strategy for the Portfolio imprint, she acquires and edits a wide range of commercial nonfiction for ambitious people, from idea-driven business books to narrative, biography, memoir, investigative journalism, and self-help. In the last decade she has published twelve New York Times bestsellers and seventeen Wall Street Journal bestsellers, including This Is Marketing by Seth Godin; The Obstacle Is the Way by Ryan Holiday; The Four by Scott Galloway; Captivate by Vanessa Van Edwards; Thinking in Bets by Annie Duke; The Death of Money by James Rickards; Hooked by Nir Eyal; and American Kingpin by Nick Bilton.She tweets about grammar, dogs, and what happens to authors who don’t turn their manuscripts in on time at @niki_pop.

Bria Sandford

Executive Editor

Bria Sandford joined Portfolio in 2012. She enjoys editing leadership narratives, economic policy, geopolitics, history, and prescriptive career guides. Her bestselling authors include retired four-star General Stanley McChrystal, political scientist Ian Bremmer, and career advice guru Jon Acuff.  She tweets at @blsandford.