Privaclouds is a natural language processing service founded by Andrei Klimanov that analyzes user content like emails and extracts metadata through taxonomies, sentiment analysis, and other techniques. It works by analyzing content streams and systematizing electronic data through NLP algorithms. The company aims to provide insights like detecting discussion topics, unusual data trends, and identifying similar user groups. Privaclouds has offices in the US and developers in India and Russia, and seeks a $1.2 million investment to further develop its NLP solutions and APIs for customers.