A unicorn company is a privately held startup or tech firm with a valuation of over $1 billion. Check out this list of the top unicorn companies. A unicorn is a private company or startup with a valuation over $1 billion. Check out our updated list of every unicorn company around the globe, their top investors, and more. List of unicorn startup companies This is a list of unicorn startup companies: In finance, a unicorn is a privately held startup company with a current valuation of US$1 billion or more. A unicorn company refers to a privately held startup that has achieved a valuation of $1 billion or more. Flipkart, BYJU’S, Nykaa, Swiggy and Paytm are among the top unicorn companies in India. India is now one of the world’s fastest-growing hubs for unicorn startups due to government support.