Claire Diaz-Ortiz (@claire) is an author, executive coach, and investor who spends a lot of time on the internet. She was an early employee at Twitter, and was named one of the 100 Most Creative People in Business by Fast Company. In Claire’s work, she has been called everything from “The Woman Who Got the Pope on Twitter” (Wired) and “Twitter’s Pontiff Recruitment Chief” (The Washington Post) to a “Force for Good” (Forbes) and “One of the Most Generous People in Social Media” (Fast Company). In 2023, she was named to the Thinker’s 50 Radar Class of new leadership thinkers.  

In executive coaching, Claire is a partner and executive coach at 100 Coaches, where she focuses on coaching leaders in technology companies, startups, and venture capital.  As a venture capitalist, Claire has been a scout at Kleiner Perkins, a venture partner and advisor at Antler Global, and a partner at a seed fund — where she cofounded the first fund for women across Latin America.

Claire is the author of 10 books that have been translated into 11 languages. Her next book, Why Can’t They Be Like Me? (co-authored with Marshall Goldsmith, the world’s most lauded executive coach) releases in 2026. It explores the specific challenges of executive coaching in startups and high-growth technology companies. Her other works include Social Media Success for Every Brand, One Minute Mentoring: How to Find and Work with a Mentor – and How You’ll Benefit from Being One (with her mentor, legendary management guru Ken Blanchard), Twitter for Good: Change the World One Tweet at a Time, Design Your Day: Be More Productive, Set Better Goals, and Live Life on Purpose, and Hope Runs: An American Tourist, a Kenyan Boy, a Journey of Redemption. 

Claire holds an MBA from Oxford University, where she was a Skoll Foundation Scholar for Social Entrepreneurship, and a B.A. and M.A. in Anthropology & History from Stanford University.

As one of the digital world’s earliest social justice activists, Claire used Twitter to build awareness for AIDS orphans in sub-Saharan Africa, leading to the founding of Hope Runs, a small nonprofit organization in Kenya that operated from 2006-2019.

Claire has been invited to speak around the world at organizations like The US State Department, The Rockefeller Foundation, South by Southwest, Toyota, and others. She is a LinkedIn Influencer, one of several hundred global leaders chosen to provide original content on the LinkedIn platform, and was been trained as a Stakeholder-Centered Certified Executive Coach as a member of the Marshall Goldsmith 100 Coaches.

Claire has appeared widely in major television and print news sources like CNN, BBC, Time, Newsweek, The New York Times, Good Morning America, The Today Show, The Washington Post, Fortune, Forbes, Fast Company, and many others.

In more offbeat superlatives, she is known for being the first and only person to ever live-tweet a child’s birth, which was admittedly a very bad idea. 

Claire lives in Argentina and California with her husband, daughter, and twin boys. (Although she loves meat, Malbec, and mate, she hates dulce de leche, because it is disgusting. Thanks for asking.) 

Find her on Twitter via @claire.