Stage: Napkin (idea)
Number of employees: 6-15
Investors: Bessemer Venture Partners, Kapor Capital, Felicis Ventures
Investors: Sequoia Capital, Felicis Ventures, Kapor Capital, SV Angel
Piazza is an online Q&A for classes, enabling high quality interaction between students and instructors.
Founded in 2009 and publicly launched in 2011, Piazza is a free online gathering place where students can ask and answer questions 24/7, under the guidance of their instructor. Anyone can create a class at Piazza.com to initiate class discussion. Students spend on average four hours a night on Piazza working together in real time with classmates and instructors to find the answers they need at the time they need them. Piazza is FERPA-compliant and used in hundreds of colleges and universities.