# Best Supply Side Platforms (SSP) - Page 5 *By [Yukta Rustagi](https://research.g2.com/insights/author/yukta-rustagi)* Supply side platforms (SSPs) allow publishers to make money from their websites by creating and selling ad inventory to marketers on an impression-by-impression, or visitor-by-visitor, basis. By selling ads in real time, publishers can provide advertisers with better visibility into individual impressions and gain instant clarity into advertising demand. This ensures that publishers sell their inventory at the most optimal price point and leverage their ad inventory to the fullest extent. SSPs are used in conjunction with publisher ad servers—either as a single product or two separate integrated products—that provide the functionality to manage ad inventory and traffic incoming ads. SSPs, in turn, give publisher ad servers the ability to sell their advertising inventory in real time through advertising exchanges or directly to advertisers’ demand side platforms (DSPs). To qualify for inclusion in the SSP category, a product must: - Include publisher ad server functionality or be able to integrate with publisher ad servers - Connect to ad exchanges and directly to DSPs to sell ad inventory in real times ## How Many Supply Side Platforms (SSP) Products Does G2 Track? **Total Products under this Category:** 100 ### Category Stats (May 2026) - **Average Rating**: 4.29/5 (↑0.01 vs Apr 2026) - **New Reviews This Quarter**: 9 - **Buyer Segments**: Small-Business 41% │ Mid-Market 33% │ Enterprise 26% - **Top Trending Product**: AdBook (+0.122) *Last updated: May 19, 2026* ## How Does G2 Rank Supply Side Platforms (SSP) Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 1,100+ Authentic Reviews - 100+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## Which Supply Side Platforms (SSP) Is Best for Your Use Case? - **Leader:** [Google Ad Manager](https://www.g2.com/products/google-ad-manager/reviews) - **Highest Performer:** [Opti Digital](https://www.g2.com/products/opti-digital/reviews) - **Easiest to Use:** [GaleForceMedia](https://www.g2.com/products/galeforcemedia/reviews) - **Top Trending:** [EX.CO](https://www.g2.com/products/ex-co/reviews) - **Best Free Software:** [EX.CO](https://www.g2.com/products/ex-co/reviews) --- **Sponsored** ### AdLib DSP Scale your programmatic media buying smarter, faster, and more profitably Independent agencies and marketers in growth-mode use the AdLib platform to deliver premium programmatic performance without the complexity, cost, or overhead of traditional DSPs. The AdLib platform provides the tools, data, and automation to run enterprise-quality campaigns — from CTV and Audio to Geofencing and YouTube — all under one roof, with zero trafficking headaches. We've helped independent agencies grow their client base five times over while keeping costs steady. Wellness brands have tripled their return on ad spend. Gaming apps have cut their user acquisition costs by 40%. Self-Service Buying Platform An easy to use DSP-agnostic platform where campaigns launch in minutes across every channel, screen stype, and stage of the funnel. Managed Service Buying Fully managed trafficking & optimization allows your team to focus on core business functions rather than the complexities of ad placement, bidding, and optimization. Programmatic APIs Build your own applications, workflows, and products on top of the AdLib platform to save time and make more revenue. White Labeled DSP Instantly launch your own branded programmatic offering without investing in development or specialized resources for support and campaign management. Automated Client Billing Improve cash flow and reduce the risk of nonpayment by automatically invoicing and collecting payments on a daily, weekly, or monthly basis via credit card, wire transfer, or ACH payment. Infinitely Customizable Reduce setup time with customized workflows and automated ad operations at a massive scale TEAM: Early & Long Term MediaMath & HudsonMX Employees. Programmatic marketing pioneers, engineers, and thought leaders with decades of experience New York | London | Los Angeles | San Francisco | Scottsdale | Detroit | Berlin | Bengaluru | São Paulo | Buenos Aires | Querétaro [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=286&secure%5Bdisplayable_resource_id%5D=281&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=neighbor_category&secure%5Bplacement_resource_ids%5D%5B%5D=280&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=126174&secure%5Bresource_id%5D=286&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fsupply-side-platform-ssp%3Fpage%3D3&secure%5Btoken%5D=5ac9ece422ab13555b415da3784c26852a9bbe009f1eabbd87d33576967283ec&secure%5Burl%5D=https%3A%2F%2Fgetadlib.com%2Fdemo&secure%5Burl_type%5D=book_demo) --- ## What Is Supply Side Platforms (SSP)? [Digital Advertising Tech](https://www.g2.com/categories/digital-advertising-tech) ## What Software Categories Are Similar to Supply Side Platforms (SSP)? - [Video Advertising Software](https://www.g2.com/categories/video-advertising) - [App Monetization Platforms](https://www.g2.com/categories/app-monetization-platforms) - [Publisher Ad Server Software](https://www.g2.com/categories/publisher-ad-server)