World's 20 Most Valuable Private Tech Companies

#19 Wonga

Estimated Value: $1.2 billion

Last Year's Rank: N/A Business: Wonga is a digital finance company that provides small, short-term loans.

Location: Seoul, South Korea

CEO: Errol Damelin provides small, short-term online cash loans to customers. The technology used here makes an automated and risk free lending decisions.

Wonga generated $300 million last, from $120 million in 2010. The company’s value is now estimated to $1.2 billion.

#18 Ozon

Estimated value: $1.5 billion

Last Year's Rank: #51

Business: An online store that sells books, movies, music and software.

Location: Moscow, Russia

CEO: Maelle Gavet

Ozon is one of the first online shopping sites in Russia, started in 1998 by Russian software company Reksoft. The products it offers are, books, electronics, music, and movies.

It is like Amazon. As of 2005, it is the largest online retailer in Russia. And its estimated value as of last year is $1.5 billion.

#17 Flipkart

Estimated Valuation: $2 billion

Last Year's Rank: #49

Business: E-commerce

Location: Bangalore, India

CEO: Sachin Bansal

It is an Indian e-commerce company headquartered in Bangalore, founded by Sachin Bansal and Binny Bansal in 2007. Its India’s leading website for Online Shopping of Books, Mobile Phones, Digital Cameras, Laptops, and Watches, at best price. Called as India’s Amazon, it is valued at $2 billion.