# 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 ## G2 Grid® for Supply Side Platforms (SSP) ![G2 Grid® for Supply Side Platforms (SSP) plotting products by satisfaction and market presence](https://www.g2.com/categories/supply-side-platform-ssp/grids.png?focus%5B%5D=5110&focus%5B%5D=1405571&focus%5B%5D=1702679&focus%5B%5D=65056&focus%5B%5D=63667&focus%5B%5D=101287&focus%5B%5D=8713&focus%5B%5D=4909) Highlighted products: Google Ad Manager, Opti Digital, BidMachine, 33Across, EX.CO, GaleForceMedia, Sharethrough, and OpenX. Underlying data: [Grid® JSON](https://www.g2.com/categories/supply-side-platform-ssp/grids.json?focus%5B%5D=google-ad-manager&focus%5B%5D=opti-digital&focus%5B%5D=bidmachine&focus%5B%5D=33across&focus%5B%5D=ex-co&focus%5B%5D=galeforcemedia&focus%5B%5D=sharethrough&focus%5B%5D=openx) ## 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 10, 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** ### iubenda iubenda group is an international privacy and compliance provider offering solutions that help organizations generate legal documents, manage user consent, and meet requirements across data protection, accessibility, and governance. Founded in 2011 and headquartered in Milan, the group supports more than 150,000 customers across 100+ countries, ranging from small businesses and agencies to SaaS companies, ecommerce brands, and large enterprises. Today, the group includes four brands: iubenda, consentmanager, Complianz, and Cookie First, which together offer a comprehensive suite of tools designed to scale with teams as they grow. Across its ecosystem, the iubenda group provides solutions that address global regulatory frameworks, including the GDPR (and UK GDPR), the ePrivacy Directive, Switzerland’s FADP, Brazil’s LGPD, California’s CCPA/CPRA, and several other U.S. state laws. Businesses can create and maintain multilingual policies, manage cookie consent, document user permissions, support data subject rights workflows, and set up internal whistleblowing channels, all through tools built to reduce operational friction as organizations expand into new markets. The group’s solutions integrate seamlessly with websites, mobile apps, and popular CMS platforms, helping teams ship updates quickly without adding legal or technical overhead. The primary value of the iubenda group’s solutions lies in helping digital teams manage essential privacy and governance tasks in a structured, automated way. By combining document generation, consent management, accessibility tools, and rights-request workflows, the platform supports transparent user experiences while allowing organizations to maintain momentum across product, marketing, and engineering. Its modular approach allows small businesses to start with core products and scale into more advanced workflows across multiple domains, applications, and regions, providing flexibility as compliance needs evolve. Key Features and Capabilities - Privacy and Cookie Policy Generator Creates and maintains legal documents tailored to specific jurisdictions, updating them as privacy regulations evolve. Policies are available in up to 27 languages, making them suitable for multilingual sites, global teams, and businesses with international growth plans. - Privacy Controls and Cookie Solution Scans, identifies, and categorizes cookies and tracking technologies, providing customizable banner configurations aligned with international standards. As a Google-Certified CMP, it integrates with Google Consent Mode v2 and supports the IAB TCF 2.2 framework. - Terms and Conditions Generator Offers structured, customizable terms for websites, applications, and ecommerce environments. - WayWidget (Accessibility Tool) Helps organizations address key usability and accessibility obligations associated with the European Accessibility Act (EAA). - Advanced Solutions Consent, whistleblowing, and monitoring in one place, built for growing businesses. Includes data request managament, confidential whistleblowing, and always-on compliance checks. iubenda group also offers solutions for agencies, enterprises, e-commerce, publishers, advertisers, and app developers, as well as native WordPress and Shopify plugins and apps. [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%5Bchosen_at%5D=2026-07-10T18%3A25%3A40Z&secure%5Bdisplayable_resource_id%5D=2189&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=64773&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=64773&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%3D7&secure%5Btoken%5D=d066245f7c8f0a9629d6e1882fd1fcd4c0fe74c5233c85c5e24620ce29d6701e&secure%5Burl%5D=https%3A%2F%2Fwww.iubenda.com%2Fen%2F&secure%5Burl_type%5D=company_website) --- ## 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)