VCASMO - VCASMO is a multimedia presentation solution for photo and video slide shows, business presentations, training, academic teaching, sales pitches, and seminars.
SlidesPPT - Beautiful free presentation templates for Google Slides
PreZentit - Prezentit is an online presentation solution based on JavaScript that comes with new online collaboration tools.
DeckDeckGo - The open source web editor for presentations. rocket
SlideShare - Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.
Sizle - Presentation software for sales teams