Google

Google was a market creating companies. While there were search engines available like google, it was google that was able to create a profitable market from it and build it's entrepreneurial style type. Founded by Larry Page and Sergey Brin, their goal was to "organize the world's information and make it universally accessible and useful" and they believe that their company is bridging the gap between people in the world.
The way google conducts work is also what makes the company succeed. Their company headquarters is very relaxed. There is a starbucks in the building, and lots of leisure activities like pool tables and it's own gym for staff. The staff is also encouraged to spend some of their time taking onprojects their interested in. These projects resulted in some of google's most successul launches like Gmail and Google News.
Google also innovated the market in other ways. Instead of charging for new services, they are all free. In this way no new competitor can get a competitive edge on price. They are also monopolizing the market in many ways by putting their name with every new product to come out. With the success of the iphone, google partnered up with Apple offered it services to iphone users.
Google can be considered a niche company, and an existing market entering company. For instance, when Map Quest first started to create a market, Google quickly responded with Google Maps, a free application. But, Google also created new online markets with launches of Google News and Gmail.
Today, google is still considered relativly young company. But, Google has changed the way in which people now connect and has an even larger impact on how we use the internet today.