QuinStreet, Inc., an online performance marketing company, provides customer acquisition programs for its clients in the United States and internationally. It operates through DMS segment. The company offers online marketing services to its clients in the form of qualified leads, inquiries, clicks, calls, applications, customers, display advertisements, or impressions through its Websites or third-party publishers. It owns and operates various Websites, such as schools.com, onlinedegrees.com, and alliedhealthworld.com in education client vertical; carinsurance.com, insurance.com, insure.com, cardratings.com, and moneyrates.com in financial services client vertical; eweek.com and itbusinessedge.com in business-to-business technology client vertical; reliableremodeler.com and improvementcenter.com in home services client vertical; and eldercarelink.com in medical client vertical. The company was founded in 1999 and is headquartered in Foster City, California.