
Paligo, Confluence, Stack Internal, ProProfs, eGain, Shelf, Stonly and Bloomfire share a category - and almost nothing else. Here is how to buy for the work your team actually needs done.

Sedarius Tekara Perrotta is the co-founder and CEO of Shelf, a New York-based knowledge management and AI data-quality platform. A former Peace Corps volunteer turned serial software entrepreneur, he has spent two decades applying machine learning and NLP to the unglamorous problem of finding the right answer fast - building knowledge systems for the World Bank, Harvard Business School, MIT and Stanford before turning that craft into a company that raised $52.5M in Series B funding led by Tiger Global and Insight Partners.