QuinStreet is a digital performance marketing company that provides technology-driven marketing solutions to clients in the financial services, education, and home services industries. The company was founded in 1999 and is headquartered in Foster City, California. Its services include search engine marketing, lead generation, and customer acquisition. It works with a network of partner websites to connect consumers with products and services that meet their needs. In addition, it also offers customer acquisition software and data management solutions to help businesses better understand and reach their target audiences.