SumZero is an online community for professional investors (collectively referred to as the "buyside"), which hosts investment research, job opportunities, and capital introduction services. Buyside professionals are granted membership per an application, where they must be on the research team at a hedge fund, mutual fund, private equity fund, or investment banking proprietary trading desk. SumZero is a closed, application-based community, which currently has over 16,000 buyside members and over 60,000 'Basic' users. Roughly 75% of buyside applicants for membership are rejected. Members gain access to SumZero's Research platform and approximately 12,000 long-form theses on publicly traded securities. SumZero's ancillary products include Cap Intro and Job Vault.