Investor Presentation QS Q2 FY19 Update

Key Investment Highlights Fr HISS Leading Performance Marketplace Platform for "Research & Compare" Consumers on the Internet Massive Shift to Online and to Performance Growing Share of Client Spend $465M+ FY19 Revenue Outlook Scale - Unparalleled Experience Curve QuinStreet Unique Products and Technologies Strong Competitive Advantages Strong Growth and Expanding Margins Driven by Multi-Year Investment in New Products and Media Strategies ALL MATERIALS CONFIDENTIAL 3

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