Best Supply-Side Platforms (SSP) with a Free Trial of 2026

Compare the Top Supply-Side Platforms (SSP) with a Free Trial as of April 2026

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What are Supply-Side Platforms (SSP) with a Free Trial?

Supply-Side Platforms (SSPs) are technology platforms that help publishers manage and optimize the monetization of their digital advertising inventory. These platforms connect publishers with multiple demand sources, such as ad exchanges, demand-side platforms (DSPs), and direct advertisers, to maximize ad revenue. SSPs enable real-time bidding (RTB), allowing advertisers to bid on ad space in real time based on audience data, and automatically serve the highest-paying ads. They also offer features such as inventory management, ad targeting, and reporting to help publishers track performance and optimize ad delivery. By increasing competition for ad space and providing advanced analytics, SSPs help publishers get the most out of their available ad inventory. Compare and read user reviews of the best Supply-Side Platforms (SSP) with a Free Trial currently available using the table below. This list is updated regularly.

1

AdBook+

FatTail

FatTail is redefining the business of advertising by designing, developing and deploying powerful sales, operations, and marketplace solutions that put you, the publisher, in charge. At the heart of our business is a highly flexible Revenue Management Platform that helps you increase monetization, control, and scale. And instead of asking you to change your business practices to conform to our standards, our software platform is readily adaptable to yours, to help you do what you’re already doing – only faster, more efficiently, and more profitably. FatTail is a global enterprise advertising technology company. We power the only unified direct and programmatic supply platform. Our cloud-based solutions give publishers total control of media planning, sales, and revenue across a wide variety of advertising products and channels and offers buy side systems differentiated “top of the funnel” inventory supply from the world’s most trusted brands.

Starting Price: $100 per month

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2

GaleForceMedia

GaleForce Digital Technologies

Marketing software for agencies and businesses. Comprehensive Software To Help You Plan and Buy Media More Effectively. GaleForceMedia media buying and planning software is a web-based software platform designed to streamline media processes. GaleForceMedia helps media buyers eliminate redundancies like duplicate field requirements, flexibly manage buys of different media types, accurately measure ad performance and effortlessly reconcile invoices. Within a sleek and intuitive interface, GaleForceMedia gives media planners and buyers a direct workflow, allowing them to execute buys without having to switch modules or interfaces. Since GaleForceMedia is a web-based platform, media buyers and planners can work and execute orders from virtually anywhere. GaleForceMedia was designed by media buyers, for media buyers. We understand the frustrations that are inherent in the industry and have built a software support system to address them.

Starting Price: $449 per month

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3

PX

PX

PX is the world’s first transparent customer acquisition platform, providing a single marketplace for companies to acquire customers from hundreds of vetted and sought-after sources. The company provides solutions for marketers to grow and efficiently scale their customer base, and is active in the Home Services, Financial Services, and Insurance industries. PX is a lead exchange marketplace – a platform used to connect thousands of advertisers and publishers in an open exchange. We process millions of consumer inquiries each month across industries including Financial Services, Insurance, Home Security, Solar, Windows, HVAC, Roofing, Flooring, and Automotive. PX was originally established as part of ReviMedia in 2010 and launched in 2016. Its headquarters are in New York City, with offices in Los Angeles, Amsterdam, Panama City, and Odessa, Ukraine.

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4

Auxo Ads

Cyber Media Research and Services Limited

Auxo Ads is a product of Cyber Media Research and Services Limited (CMRSL) company. Auxo Ads is an AI/ML technology supply-side platform (SSP) helping better ad bids accessible to publishers without compromising on user experience. Auxo Ads assists publishers in optimizing their ad inventory and increasing ad revenue through programmatic and premium direct demand. With Auxo Ads Publishers can manage their Ad inventory across direct programmatic and ad network demand. Publishers can get a unified report and deep analytics for effective revenue decision making.

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