QuinStreet Inc, is a provider of online direct marketing and media services. The Company offers online messaging, email broadcasting, search engine marketing, and brand management services. It caters to education, financial services, healthcare, advertising, and tourism sectors. QuinStreet, Inc. also operates web portal which offers comprehensive consumer information service and companion insurance brokerage service to self-directed insurance shoppers. The Company vigilantly manages brand and regulatory compliance using proprietary technologies and staff. It does not support or use spyware, spam, or promotions that cheat customers. QuinStreet Inc. is headquartered in Foster City, California.