Looking for the top SSPs to maximize your ad revenue in 2025? Fret not! We have compiled 18 top supply side platforms for you to make smarter decisions and monetize better.
Choosing the right supply-side platform can enable data-driven decisions and expand monetization opportunities for publishers. Moreover, with cookie depreciation looming over them, it becomes even more essential to choose the one that can keep pace with the fast-paced developments in AdTech.
But with a surfeit of options available in the market, it can become overwhelming to find the right fit.
To make it easier for you, we have curated a list of top SSPs in our blog. Whether you are an independent blogger, media/news outlet, or an enterprise publisher, our listicle will make it easy for you to make an informed decision.
Top 18 Supply Side Platform List (2025 Edition)
1. Geniee SSP
Geniee International, a Japan-based AdTech company, is one of the top SSPs on our list. Having a wide presence in the Southeast and Asia-Pacific markets, the SSP conducts a real-time revenue evaluation of 150+ ad networks to serve ads offering the highest CPM.
- Extracts advertising inventory of more than 300,000 ads a month to help publishers connect with high-demand buyers
- Extracts presumed attributes of access users to improve targeting across its publishing network
- Has experienced media consultants to guide your media strategy
2. PubMatic Supply-Side Platform To Maximize Your ROI
Pubmatic is one of the top SSPs in the industry, and publishers can use it to take control of and grow their digital advertising businesses. It allows marketers to increase return on investment by reaching and engaging their target audiences in brand-safe, premium environments across a variety of ad formats and platforms.
3. OpenX
OpenX is known for precise inventory management, dynamic real-time bidding (RTB), and advanced data insights. Publishers benefit from optimized ad placements, lightning-fast auctions, and data-driven decision-making, making OpenX one of the top SSPs.
Its precise inventory management, along with robust data analytics, makes it one of the best SSPs in the market.
4. Magnite
Another one of the top supply side platforms is Magnite, which came into existence after the merger of Rubicon Project and Telaria in 2020, a deal the two said would create the world’s largest independent SSP. It is the best Supply Side Platform that has pioneered technology companies automating the buying and selling of advertising.
They have created one of the largest real-time cloud and Big Data computing systems, processing trillions of transactions within milliseconds each month. The platform provides publishers with its Private Marketplace (PMP), Programmatic Guaranteed (PG), and Auction Package capabilities to increase control over the sale of ad inventory.
5. Sovrn
Sovrn serves publishers looking to improve programmatic advertising revenue and optimized ad monetization. The platform offers monetization solutions and perks like audience insights while simplifying tasks like installation and management, among many others, through a feature known as OneTag.
Sovrn’s all-rounder set of monetization and data tools help simplify your workflow to increase efficiency and revenue.
6. Index Exchange
The next top SSP in our list is Index exchange. The platform gives publishers the ability to automate the ad review process based on their requirements like specific industry types, content types, and creative types that should or shouldn’t be included in the content.
The SSP facilitates cross-channel monetization by using programmatic advertising to deliver ads tailored to each user’s preferences. Its addressability solutions ensure a safe, personalized experience while maximizing yield by driving greater competition for your inventory.
IX also offers server-side integrations with specific partners for select publishers on user segmentation and audience targeting.
7. Criteo’s Commerce Grid
Criteo provides a diverse range of ads such as standard IAB, Sticky footer, native ads, rich media ads, and native API. The SSP offers instant access to exclusive demand from 17,000+ brands across Criteo’s Commerce Media Platform.
Publishers can use this supply-side platform for Direct Bidder to increase their website’s ad revenue by establishing a direct connection between premium inventory and premium demand.
8. Smaato by Verve
Smaato’s digital ad technology platform is an all-in-one omnichannel monetization solution and free ad server. Smaato gives publishers maximum control over their income. Smaato offers four flexible integration options to its publishers: SDK, API, Ad tags, and Prebid. Moreover, Smaato’s RTB Ad exchange and Programmatic support guarantee the best inventory price within 200 milliseconds.
9. Xandr Monetize
Next one of the top SSPs on the list is Xandr. Previously known as AppNexus, it can help you reach premium demand through options like private auctions or open auctions for maximized revenue. The supply-side platform uses prebid-powered header bidding technology, deal capabilities, and curated premium demand.
Xandr SSP powers monetization through advanced tools that give publishers greater control over ad placements. Moreover, it facilitates seamless management of both inventory and demand channels for optimized performance.
10. Media.Net
Media.net has been one of the top supply side platform examples due to its specialization in ad monetization in cookieless environments. Having 15+ yeast of data on over 7 million topics across 250+ segments, Media.net SearchSignals offers advanced intent-based contextual targeting.
Apart from popular ad formats like, display, native, or video, the platform also offers AI-enabled vertical video ads to optimize mobile ad experiences.
The size and scope of your niche make no difference, and you can find advertisers to match your content.
11. Adform SSP
Adform is a publisher-centric platform inspired by their Private Marketplace that aims to reduce the gap in the monetization strategy. It offers extensive DMP integration for proper tracking and monetization of audience data.
The platform supports various inventories like native, video, in-app, desktop, and mobile for omnichannel monetization. Adform SSP offers robust support for rich media formats and includes a suite of free self-service creative tools to help publishers build engaging ad experiences.
12. Teads SSP
Teads positions itself as the pioneer of out-stream video and the leading video advertising marketplace globally. With Teads, publishers get single-point access to 50+ exclusive global brand partners, 20K active advertisers, and 10K+ premium media environments. Processing 1 billion contextual signals a minute, the platform offers AI-powered personalization and continuous optimization for an enhanced ad experience.
13. Vistar Media
Vistar Media presents publishers with an end-to-end programmatic revenue generation option, including a supply-side platform (SSP), a demand-side platform (DSP), and digital signage software. The platform facilitates automated, measurable, and data-driven digital out-of-home (DOOH) transactions.
It brings contextual ads to digital screens, connects buyers with digital out-of-home operators, and allows buyers to evaluate and bid on inventory in real time.
14. ReklamStore SSP to Bring Buyers and Sellers Together
It is one of the best supply side platforms for small and medium-sized publishers. With efficient advertising optimizations and ad placements, you will increase your eCPM and have a 100% fill rate all the time. Using proprietary algorithms, ReklamStore SSP shows relevant ads to your users by analyzing your website.
Dozens of different demand-side platforms, ad exchanges, and direct buyers are integrated into ReklamStore SSP’s network with header bidding technology.
15. Google Ad Manager
Google Ad Manager (GAM) offers a natural and powerful SSP solution. GAM goes beyond simply integrating with Google’s ad network (AdSense). It also connects you to DV360, a leading Demand-Side Platform (DSP), and Google AdX, the AdTech giant’s ad exchange. This grants access to a massive pool of advertisers that increases the bid pressure, significantly increasing your revenue.
16. AdMob
AdMob, a mobile advertising platform developed by Google, serves as a leading SSP
Google AdMob is one of the top SSPs that specializes in monetizing mobile app inventory for publishers. With its integration into Google’s broader ecosystem, AdMob offers publishers access to a vast network of advertisers and demand sources to get the best inventory value.
It’s advanced targeting capabilities, powered by Google’s advanced algorithms, allow publishers to deliver highly relevant and personalized ads to their users, enhancing user experience and engagement within mobile apps.
Let’s look at the numbers to understand how vast AdMob’s spread is. More than 1 million apps use AdMob; the same is the number of advertisers associated with the platform. 81% of the top 1000 Android apps use AdMob for monetizing their inventory. Moreover, 97% of the top 100 advertisers listed by AdAge purchase ads through AdMob.
17. GumGum
GumGum operates in more than 19 countries and collaborates with leading agency networks such as Dentsu, IPG, Publicis, Omnicom, WPP, and Havas. The company also partners with 150 agencies, supports over 30,000 publisher websites, and serves more than 700 clients globally.
Its key strengths lies in its advanced contextual targeting technology, which analyzes the content and context of web pages to deliver highly relevant and engaging ads to users. The platform offers four flexible integration options: Server-to-server, header bidding, ad server, and code snippets.
18. Amazon Publisher Services (APS)
Amazon Publisher Services (APS) offers monetizing services to all publishers: web/app publishers, app developers, streaming TV publishers, audio publishers, and programmatic buyers. With sophisticated algorithms and machine learning technology, APS enables publishers to deliver highly relevant and personalized ads to their audiences, driving higher engagement and conversion rates.
Additionally, their comprehensive reporting and analytics tools allow publishers to track key performance metrics, measure campaign effectiveness, and gain actionable insights into audience behavior.
However, APS isn’t a standalone SSP like others given in our listicle. It acts more in lines of a consolidated infrastructure and brings SSPs into one unified platform (Universal Ad Marketplace). While it directly doesn’t sell inventory, it manages the technicalities to ensure efficient delivery.
5 Key Factors to Choose the Best SSP
Choosing the top SSP for your publishing business is fundamentally an essential business decision that will chart your growth graph. Here are some considerations you should take care of while looking for one:
1. Demand Partners
Choose an SSP that has its own ad server and is continuously looking for new demand partners to supply you with the most profitable deals.
If the SSP comes with header bidding integration, it would allow publishers to take part in open auctions. Additionally, it would be even more advantageous if the SSP company had its own DSP as well to offer direct demand.
2. Ad Quality Standards
Pick an SSP that offers robust ad quality checks to protect you from malvertising. Many trusted third-party verification partners offer quality measurement solutions for SSPs. An SSP’s ability to ensure a brand-safe, high-quality environment is a key consideration that shouldn’t be ignored.
3. Robust Analytics & Reporting
An SSP should give publishers timely, real-time statistics on inventory performance, such as ad impressions served and revenue generated, along with trends over time. Choosing a platform that works with live data is essential to ensure reporting accuracy and make informed decisions.
4. Privacy Compliance & Cookieless Environment
As third-party cookies phase out, publishers should turn to SSPs that can help them maximize the value of their first-party data while staying privacy-compliant. One effective method is through Seller-Defined Audiences (SDA), where SSPs package audience segments to attract advertisers aiming to reach specific user groups.
5. Reliable Customer Support
Publishers should understand the level of customer support offered by the SSP they plan to work with. Access to support channels like email, phone, chatbots, or detailed documentation can be critical when issues arise. If the SSP meets expectations, positive feedback from other publishers, locally or online, is usually a good sign.
Key Takeaways on Top SSPs
- Supply side platforms help publishers and advertisers to monetize inventory with ease in order to achieve greater results. According to industry experts, supply-side platforms are practically mandatory for publishers who want to stay competitive.
- The top SSPs for publishers in 2025 include Teads, Google Ads Manager, Geniee SSP, Magnite, PubMatic, and Amazon SSP.
- There are top five factors a publisher should consider before finalizing an SSP: Number of demand partners, ad quality standards, privacy compliance, robust reporting, and reliable customer support.
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FAQs Related to Top SSPs
1) Setupad
2) Pubmatic
3) ReklamStore
4) Sovrn
5) Teads
6) Magnite
7) Index Exchange
8) Smaato
9) SpotX
10) Xandr
and the list goes on.
Supply-side platforms allow publishers to connect their inventory to multiple ad exchanges, DSPs, and networks at once.
They connect to ad exchanges, ad networks, data-management platforms (DMPs) and demand-side platforms (DSPs) to sell ad inventory on behalf of publishers (e.g. websites and app owners).
1) Transparent reporting system
2) Support for multiple ad formats
3) Best price floors
4) Control over ad display
5) Brand safety
