Perplexity

Perplexity operates an AI-powered answer engine that responds to natural-language questions with synthesized answers and cited web sources, positioning itself as an alternative to traditional search. It offers free and Pro subscription tiers plus an enterprise product and has expanded into agentic browsing and shopping features. Founded in 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho and Andy Konwinski, it has raised roughly $1.72 billion and reached a valuation above $20 billion. The company runs a London office (registered as Perplexity AI Ltd) to support its European operations, alongside additional offices in Berlin and Belgrade.