Current Issue
This Month's Print Issue

Follow Fast Company

We’ll come to you.



Claire Diaz-Ortiz

Claire Diaz-Ortiz

Claire Diaz-Ortiz

Claire Diaz-Ortiz leads social innovation at Twitter, Inc. and has been named one of the 100 Most Creative People in Business by Fast Company.

She is the author of several books, including Twitter for Good: Change the World one Tweet at a Time, and is a frequent international speaker on social media, business and innovation. She writes a popular business blog at and also serves as an advisor to startups and social enterprises.

As an early employee at Twitter, she is known for developing the TWEET model — a framework to help organizations and individuals best excel on the platform.

Claire holds an MBA from Oxford University, where she was a Skoll Foundation Skollar, and an MA and a BA from Stanford University.

She is the co-founder of Hope Runs, a non-profit organization operating in AIDS orphanages in Kenya, and owns Interwebs Publishing.

Claire has lived on four continents and travelled to more than fifty countries. Called a “mover and shaker” by Mashable, she has been widely written about in such publications as The New York Times, The Washington Post, Business Week, Fast Company, and Forbes.