Founded in April 1999, QuinStreet is one of the world's largest online marketing and media companies. Clients count on us to be the best source of customer acquisition at scale.

Underlying Principles

We believe that companies should be profitable, conduct themselves with the highest integrity, and succeed through relentless focus on customer success and measurable results.

Vertical Expertise

We are experts in select industry verticals. This enables us to get the best results for our clients. No one knows more than QuinStreet about online messaging, segmentation, or impact in our verticals.

Broadest Media Reach

We are a top five online media buyer. We pioneered search engine marketing and are one of the largest pay-per-click (PPC) buyers in the world. We manage one of the largest proprietary networks on the Internet. We are experts in every major form of online traffic, including our owned and operated destination sites, PPC search, third-party publishers, opt-in email, and newsletters.

Ethical Marketing

The Internet is our home. It must be safe for customers and your brand. We vigilantly manage brand and regulatory compliance using proprietary technologies and staff. We do not support or use spyware, spam, or promotions that cheat consumers.

We are building a large company for the long-term and are doing so on the strength of our clients' successes.

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