MFour Mobile Research is a market research company that specializes in mobile research. The company was founded in 2011 by Chris St. Hilaire and has its headquarters in Irvine, California. MFour Mobile Research provides a range of services including mobile surveys, mobile ethnography, mobile diaries, and mobile communities. The company has a proprietary mobile research platform called Surveys on the Go, which has over 2 million active users. MFour Mobile Research has worked with a range of clients including Coca-Cola, Amazon, and Walmart.