Dr. David Castain

David Michael Castain II (born August 5, 1988), is an American businessman and academic. He is perhaps best known for leaving a life of crime to later found a marketing firm worth over $5 million by November 2016 and $8.5 million by 2020. He decided to attend Howard University when he was serving an 8-month house arrest term following the two years he had already served behind bars.

Career Castain began promoting parties while attending Howard University in Washington, DC. He gained national attention after he organized events with Sean Combs, Drake, LeBron James and other celebrities. In 2012 David was hired by Grey Goose where he served as their Director of Social Marketing. Following his seventh year of leaving a life of crime, he founded a nonprofit organization, the David Castain Foundation. In May 2013 David graduated from Howard University with a Bachelors in Speech and Applied Communication and a minor in sociology. He was the commencement speaker at his graduation ceremony. Upon graduating, he founded a marketing firm dubbed David Castain & Associates. The company obtained clients in various disciplines from Chipotle and Uber to a Berkshire Hathaway subsidiary, Cort Furniture. In 2014 he graduated from Georgetown University, where he was the recipient of the Golden Bulldog Award for being the 'Most Creative' student in the program, with a Master's in public relations and corporate communications. Castain is a member of the Kappa Alpha Psi Greek fraternal organization. In 2021, Forbes named him to their Next 1000 list. Castain's doctoral thesis studied "Instagram Branding Strategies, Leadership, and Decision-Making Competency in Business Practices Between Millenial and Generation Z Entrepreneurs in the Western United States."

He is an adjunct professor at Delaware County Community College teaching public speaking. Castain was named to the Global Top 100 Under 40 Most Influential People of African Descent by the civil society Most Influential People of African Descent.

Public speaking Castain has hosted two TEDx talks. In 2021 he hosted a TEDxBuckhead discussing the currency of reputation and clout and their relevancy to marketing, self-image, and career opportunities. He hosted a talk at TEDxMorgan State University in 2026 discussing his past and how the internet and artificial intelligence can reduce societal barriers to opportunities for a meaningful life.