Peter Arvai is a Swedish businessman of Hungarian parentage. He is CEO and co-founder of Prezi, a cloud-based presentation software company. Peter co-founded Prezi along with other two co-founders Adam Somlai-Fischer, a designer and Peter "HP" Halacsy, a computer scientist and university professor; and officially launched it in 2009.

Before founding Prezi, Peter established omvard.se in Sweden, which helps patients compare treatment outcomes between hospitals. Omvard.se was voted Best Website of Sweden in 2009. Peter was also part of creating the world's first mobile news reader, secure an IPO, and acquire companies as VP of Product Management at a mobile internet start-up, Mobispine. Peter Arvai was one of the developers of Patented Web feed message browsing.

Arvai was the first openly gay CEO in Hungary. He made his coming out in 2015 in a Forbes piece to have a gay role model for young people considering to be entrepreneurs.

Additionally, Peter Arvai is the author of Developing the Business Case for a New Mobile Service: An Exercise in Business Model Designing.

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