# Best Enterprise Supply Side Platforms (SSP) *By [Yukta Rustagi](https://research.g2.com/insights/author/yukta-rustagi)* Products classified in the overall Supply Side Platform (SSP) category are similar in many regards and help companies of all sizes solve their business problems. However, enterprise business features, pricing, setup, and installation differ from businesses of other sizes, which is why we match buyers to the right Enterprise Business Supply Side Platform (SSP) to fit their needs. Compare product ratings based on reviews from enterprise users or connect with one of G2's buying advisors to find the right solutions within the Enterprise Business Supply Side Platform (SSP) category. In addition to qualifying for inclusion in the Supply Side Platforms (SSP) category, to qualify for inclusion in the Enterprise Business Supply Side Platforms (SSP) category, a product must have at least 10 reviews left by a reviewer from an enterprise business. ## 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. ## What Are the Top-Rated Supply Side Platforms (SSP) Products in 2026? ### 1. [Google Ad Manager](https://www.g2.com/products/google-ad-manager/reviews) DoubleClick for Publishers is a complete ad revenue engine that helps publishers capture the full value of every impression across demand sources and channels. Seamless integration with DoubleClick Ad Exchange provides instant connection to millions of quality advertisers, while the natively integrated sales management platform streamlines operations for maximized sales at minimized costs. **Average Rating:** 4.2/5.0 **Total Reviews:** 233 **How Do G2 Users Rate Google Ad Manager?** - **SSP Functionality :** 8.2/10 (Category avg: 8.5/10) - **Impression Targeting:** 8.6/10 (Category avg: 8.4/10) - **Ease of Admin:** 7.9/10 (Category avg: 8.4/10) - **Bid Reporting:** 8.2/10 (Category avg: 8.3/10) **Who Is the Company Behind Google Ad Manager?** - **Seller:** [Google](https://www.g2.com/sellers/google) - **Year Founded:** 1998 - **HQ Location:** Mountain View, CA - **Twitter:** @google (31,915,529 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/1441/ (336,169 employees on LinkedIn®) - **Ownership:** NASDAQ:GOOG **Who Uses This Product?** - **Top Industries:** Marketing and Advertising, Publishing - **Company Size:** 42% Mid-Market, 37% Small-Business ### 2. [33Across](https://www.g2.com/products/33across/reviews) 33Across makes the programmatic advertising ecosystem work without cookies, across supply-side platforms, demand-side platforms, publishers, data companies, agencies, and everything in between. Leading global advertisers, platforms, and publishers rely on 33Across to move past cookies and reach consumers in a simple, fair, and transparent manner. **Average Rating:** 4.3/5.0 **Total Reviews:** 125 **How Do G2 Users Rate 33Across?** - **SSP Functionality :** 8.3/10 (Category avg: 8.5/10) - **Impression Targeting:** 8.3/10 (Category avg: 8.4/10) - **Ease of Admin:** 7.8/10 (Category avg: 8.4/10) - **Bid Reporting:** 8.1/10 (Category avg: 8.3/10) **Who Is the Company Behind 33Across?** - **Seller:** [33Across](https://www.g2.com/sellers/33across) - **Year Founded:** 2007 - **HQ Location:** NY, US - **Twitter:** @33Across (1,232 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/33across-inc./ (46 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Computer Software, Information Technology and Services - **Company Size:** 58% Small-Business, 30% Mid-Market #### What Are 33Across's Pros and Cons? **Pros:** - Innovation (1 reviews) - Reliability (1 reviews) **Cons:** - Complexity (1 reviews) - Difficult Learning (1 reviews) - Inefficient Reporting (1 reviews) ### 3. [Sharethrough](https://www.g2.com/products/sharethrough/reviews) Sharethrough is an omnichannel supply side platform underpinned by advanced RTB tech and enhanced ad experiences that are proprietary to Sharethrough. Sharethrough aims to bring human-centric technology to programmatic advertising with the goal of creating a sustainable advertising ecosystem for journalists, content creators, and app developers. **Average Rating:** 4.5/5.0 **Total Reviews:** 85 **How Do G2 Users Rate Sharethrough?** - **SSP Functionality :** 9.1/10 (Category avg: 8.5/10) - **Impression Targeting:** 9.2/10 (Category avg: 8.4/10) - **Ease of Admin:** 8.6/10 (Category avg: 8.4/10) - **Bid Reporting:** 8.7/10 (Category avg: 8.3/10) **Who Is the Company Behind Sharethrough?** - **Seller:** [Sharethrough](https://www.g2.com/sellers/sharethrough) - **Year Founded:** 2008 - **HQ Location:** Montreal, Quebec - **Twitter:** @sharethrough (5,080 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/638984/ (44 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Marketing and Advertising, Entertainment - **Company Size:** 44% Mid-Market, 28% Small-Business ## 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)