# Best Supply Side Platforms (SSP) - Page 7 *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:** 101 ### Category Stats (Jul 2026) - **Average Rating**: 4.28/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product**: Opti Digital (+0.72%) - Among all products in this category, Opti Digital recorded the largest rating increase compared to last month *Last updated: July 05, 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 - 101+ 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:** [Opti Digital](https://www.g2.com/products/opti-digital/reviews) --- **Sponsored** ### Go1 Go1 is a comprehensive employee training solution specifically designed for Learning and Development (L&D) leaders who prioritize a people-first approach in their organizations. The Go1 platform enables L&D professionals to efficiently deliver tailored learning content to employees, ensuring that the right resources are accessible at the right moment. By leveraging advanced AI-enhanced discovery and curation tools, Go1 simplifies the process of finding and deploying relevant educational materials from over 250 industry-leading content providers. The target audience for Go1 includes L&D leaders and HR professionals who are focused on enhancing employee skills and knowledge. With the ever-evolving landscape of workplace learning, these professionals require a solution that not only aggregates high-quality content but also integrates seamlessly with existing learning ecosystems. Key features of Go1 include its extensive library of content, which spans various topics and formats, allowing organizations to cater to different learning preferences. The platform's AI-driven tools enhance the user experience by providing personalized recommendations, ensuring that employees receive content that is relevant to their roles and career aspirations. Additionally, Go1's integration capabilities with over 70 leading learning platforms and workplace applications enable organizations to utilize the platform within their existing infrastructure, minimizing disruption and maximizing efficiency. By centralizing learning resources, L&D leaders can streamline their training initiatives, improve employee engagement, and foster a culture of continuous learning. The platform's ability to deliver timely and relevant content not only enhances the learning experience but also contributes to improved performance and productivity within teams. Overall, Go1 stands out in the L&D landscape by offering a robust, user-friendly solution that aligns with the needs of modern organizations striving for effective employee development. 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[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)