The tech bro (and girl) office culture is one filled with favoritism and frequent hints of racism. Of the 100+ people, you can count the people of color on two hands in the New York, San Francisco, Palo Alto, and Chicago offices. Chicago, of all places, has one POC.
Despite not performing, several of the white salespeople have been promoted while the POC are written up and have their jobs threatened for not hitting quota. Racist expletives can be heard playing in music from the office speakers at any given time in New York despite it visibly making the African-American employees feel uncomfortable.
You won't find many minorities in positions other than frontline sales and support and based on the racist jokes one of the investors made when he came to the New York office, that likely won't change any time soon.