Columbia Organization of Rising Entrepreneurs | 1,716 followers on LinkedIn. Columbia's undergraduate entrepreneurship society: inspire, educate, and launch the next generation of entrepreneurs. | The Columbia Organization of Rising Entrepreneurs (CORE) works to inspire, educate, and launch the next generation of entrepreneurs from Columbia University. We reach a membership of over 5,000 students across campus, with a focus on the four undergraduate schools. In the past five years, we have had the honor of hosting entrepreneurship icons including DJ Khaled, Evan Spiegel (Snapchat), Alexis Ohanian (Reddit), Howard Marks (Activision Blizzard), Chris Poole (4chan), Jared Hecht (Groupme, Fundera), Zach Sims (Codecademy), and Jessica Livingston (Y Combinator).