Simon Castiel is a finance professional with a strong background in investment banking and private equity. Currently serving as an Associate at Blackstone since September 2025, Simon previously held associate positions at Charlesbank Capital Partners from January 2024 to August 2025, and has experience as an Analyst at Credit Suisse from July 2022 to January 2024, where responsibilities included supporting the Private Fund Group. Simon began a career in finance as an Investment Banking Summer Analyst at Credit Suisse in June 2021. An alumnus of Washington University in St. Louis, Simon earned a Bachelor of Science in Business Administration with a focus on Finance and Economics, completing the degree in 2022, after graduating from Pascack Hills High School in 2018.
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