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Tracy Sun

Co-Founder & Vice-President, Poshmark

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The BoF 500 is the definitive professional index of the people shaping the $2.4 trillion fashion industry, hand-selected by the editors of The Business of Fashion, based on hundreds of nominations received from current BoF 500 members, extensive data analysis and research.


Tracy Sun is the co-founder and vice-president of merchandising at Poshmark, one of largest peer-to-peer fashion resale platforms.

Sun was at the helm of turning the Silicon Valley start-up into a giant community marketplace for fashion, which boasts over 2.5 million sellers, and was among the first e-commerce platforms to go mobile-first. Poshmark has been at the forefront of the retail industry through its in-app wholesale marketplace that levels up casual sellers into profitable boutiques.

Born in Kuala Lumpur and raised in New York, Sun thought neuropsychology would be her future, undertaking a degree in biology and psychology from Columbia University. She subsequently interned at Brooklyn Industries, where she rose to vice-president of merchandising in three years, and turned her attention to the intersection of fashion and tech.

After receiving an MBA from Dartmouth University, she founded Poshmark. Since its launch in 2010, Poshmark has raised a total of $70 million-plus in funding. Today, one in 50 American women sell on the app, engaging an average of seven times per day.

The platform’s differentiator in the fashion-tech space is the Wholesale Portal, launched in 2015, which allows its most successful sellers to purchase new items wholesale, both expanding the sellers’ business and bringing wholesale purchases under the Poshmark umbrella.

Sun has been highlighted as a "Top Female Tech Founder" by USA Today and TechCrunch, and named amongst the "Woman Making Waves in Tech" by Refinery29.




Co-Founder & Vice-President

2010 - Present


Columbia University

Columbia University

Dartmouth University

Dartmouth University

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