Modernized Ecosystem
Signal and data foundation that allows for better supply-path optimization & algorithm decisioning.

Modernized Ecosystem that provides a clear true north for our industry.
SOURCE increases cost efficiency by 15% on average compared to other DSPs and walled gardens and reduces total cost of ownership by cutting media and fraud protection fees.
SOURCE extends our DSP outward into a curated, aligned and optimized subset of the hundreds of supply and technology vendors globally.
With SOURCE, advertisers get:
Accountability
Complete clarity into all costs associated with automated advertising
Addressability
A clear path beyond the third-party cookie
Alignment
Real trust between publishers, adtech intermediaries and advertisers thanks to bidirectional data sharing

Make purpose a differentiator for your brand
Ensure that where and how you spend your advertising dollars reflect your brand’s values and purpose, with Purpose-Driven Advertising, an initiative by MediaMath composed of unique products, services, and advocacy.
One Fortune 100 B2B company championed diversity and inclusion by activating MediaMath’s Multicultural Marketplace, which gave them a 26% decrease in CPM and 13% more efficient CPA. Finance diverse, quality media across the open internet today.
SOURCE benefits advertisers in a number of ways:
Premium content experiences: managed and optimized based on your needs.
Cultivate publisher relationships, negotiate rates, combat fraud and maintain media-sourcing expertise with Premium Experiences hand picked based on your needs. Media is purposefully selected to maximize reach against your best customers and prospects, specific KPI performance and scale. All markets are built on our transparent SOURCE ecosystem, with built-in, industry-leading pre-bid IVT protection at no additional cost. Just pick the one that best fits your campaign goals and activate it with one click.
Strategic Partners
SOURCE launched with 15 anchor partners, including Rubicon, White Ops and Oracle Data Cloud and publishers like Business Insider and NewsCorp. Today, we have over 600 publishers, as well as new technology partners like LiveRamp and Merkury to drive industry-leading addressability for our clients as we prepare for a world without third-party cookies.
Check out our partner section to browse through hundreds of best-of-breed data, supply and tech vendors we work with to achieve business goals:
Let’s Get Started!
Learn how to benefit from an Accountable and Addressable Supply Chain: