Who is Simon Sinek?

Simon Sinek is an English-born American author and motivational speaker, renowned for his work on leadership and organizational behavior. He gained global recognition with his 2009 book, Start with Why, and its accompanying TED Talk, which has become one of the most-watched of all time.

Sinek's concept of the "Golden Circle" emphasizes the importance of understanding "why" an organization exists to inspire leadership and innovation. He has also authored Leaders Eat Last (2014), Together Is Better (2016), Find Your Why (2017), and The Infinite Game (2019).

In addition to his writing, Sinek is the founder of The Optimism Company, a digital learning platform aimed at fostering leadership and organizational growth.

Simon Sinek's Age & Birthday

Date of Birth: October 9, 1973

Age: 51 years old (as of 2025)

Zodiac Sign: Libra

Simon Sinek's Height & Physical Stats

Height: Approximately 5 feet 9 inches (175 cm)

Weight: Not publicly disclosed

Eye Color: Brown

Hair Color: Dark Brown​

Simon Sinek's Career & Businesses

Author: Authored several bestselling books, including Start with Why, Leaders Eat Last, and The Infinite Game, focusing on leadership and organizational behavior.

Motivational Speaker: Renowned for his TED Talks and keynote speeches, emphasizing the importance of purpose-driven leadership.

Founder of The Optimism Company: Established a digital learning platform aimed at fostering leadership and organizational growth.

Simon Sinek's Net Worth

Estimated Net Worth (2025): Approximately $21.2 million.

Simon Sinek's Family & Personal Life

Marital Status: Information not publicly disclosed

Children: Not publicly disclosed

Residence: New York, United States​

What’s Simon Sinek’s Dream?

Simon Sinek envisions a world where individuals wake up every morning inspired, feel safe wherever they are, and end the day fulfilled by the work they do.