Top 21 Supply Side Platforms (SSP) SaaS Companies in May 2026

Toronto, Ontario, Canada

Index Exchange is a global advertising supply-side platform enabling media owners to maximize the value of their content on any screen. As a trusted partner and ally, we connect leading experience makers with the world’s largest brands to ensure a quality experience for consumers. We’re a proud industry pioneer with over 20 years of experience accelerating the ad technology evolution. With our radically transparent business practices and dedication to total market efficiency, we’re committed to upholding the integrity of the programmatic ecosystem at large. Our global teams are dedicated to driving industry standards and building technology that delivers scale, efficiency, and long-term value for our customers and partners.

Widnes, Cheshire, United Kingdom

GRV Media is a leading UK publisher & ad-tech provider focused primarily on sports and entertainment, with a network of over 70 sites. They specialize in Header Bidding and revenue optimization services.

London, England, United Kingdom

Admixer Technologies is a global player in Ad Tech industry, providing SSP and DSP capabilities and complementary SaaS solutions for all parts of the programmatic ecosystem. Admixer product ecosystem includes: - Admixer.DSP - Admixer.SSP - Admixer.Publisher (SaaS Adserver for sites and mobile apps owners) - Admixer.Network (Enterprise SaaS solution to run different kinds of ad networks) - Admixer.DMP - Admixer.Creatives (Adserver for Advertisers and Creatives Management Platform) - Player.Best (HTML5 Video\Audio player with integrated monetization) All Admixer ecosystem products complement each other and so provide additional advantages and enhanced functional capacity right up to the single interface. Established in 2008 with HQ London, Admixer has offices in Ukraine, Kazakhstan, Russia, Belarus, Georgia, Latvia, and Moldova. Admixer is an official reseller of Google, Viber, InMobi, Facebook, AppNexus, and other market leaders. In 2018 Admixer, as a company, became an IAB

Lewes, Delaware, United States

Adtelligent is a global advertising technology company offering in-house solutions that help online media companies, digital sales houses, and ad networks effectively monetize web and app inventory. Supporting the full ad ecosystem, Adtelligent provides tools to manage SSP and DSP partnerships, along with a Retail Media Ad Server, Dynamic Ad Insertion (DAI) Server, and solutions for DOOH advertising. The platform also integrates telecom operator data via secure data clean rooms, enabling privacy-first, data-driven targeting. Adtelligent unique business approach delivers cutting-edge advertising technologies to more than 50,000 publishers globally, helping them facilitate revenue growth and capitalize on the digital advertising market.

San Francisco, California, United States

Chocolate is a global leader in programmatic digital video advertising. Chocolate Premium, is the world's first video SSP with 100% server-side auctions. With 7700+ websites & apps and 20+ billion impressions per month, Chocolate Premium is one of the leading video SSPs connecting premium brands with premium publishers. Chocolate is a privately held, venture-backed company headquartered in Silicon Valley with offices in San Francisco, CA, and India.

Wilmington, Delaware, United States

SmartyAds is a global adtech company offering innovative advertising and monetization solutions for media buyers and sellers. Our state-of-the-art products help businesses to achieve impressive results across all channels, devices and ad formats. Finding new possibilities within Artificial Intelligence, machine learning, and Big Data Analytics, we are reshaping the future of programmatic advertising, making it surprisingly simple for every client. Discover our products and solutions: 1) Self-Serve Supply Side Platform (SSP) is an integrated yield optimization tool for direct publishers. Our wide range of benefits for publishers includes the header bidding solution, a private marketplace to complement open RTB auctions, fast and transparent payments, high fill rates, high-quality advertisers who represent trusted international brands, and proactive customer-oriented support. 2) Self-Serve Demand-Side Platform (DSP) is an award-winning solution for reputable brands and advertising agencies. We help advertisers to run AI-powered programmatic ad campaigns across channels, formats, geos, and business verticals. Supported ad formats include video, audio, native, display, rich media, mobile in-app, and CTV & OTT. Thanks to the DSP's proprietary features, our customers get more impressions and clicks for lower costs, and turn their audience into clients. 3) Real-Time Bidding Ad Exchange for both supply and demand partners. If you have any inquiries do not hesitate to contact us by e-mail ([email protected]) or phone: US +1 516 243 1241 UK +44 20 8089 83 20 Ukraine +151 62 431241

London, United Kingdom

We think about advertising differently. Alkimi Exchange is a decentralised replacement to the inefficient legacy programmatic ad exchanges with the mission to restore the value exchange between advertisers, publishers and users. Alkimi Exchange is a custom layer 2 scaling solution on the Ethereum network, specifically for advertising — which allows us to provide the fastest, infinitely scalable solution with 0% fraud, low transaction fees and complete end-to-end transparency. Learn more at www.alkimi.org

New York, New York, United States

At 33Across, our goal is to make the open web work without cookies in a way that is simple and fair for publishers. Our identity solution, Lexicon, makes inventory easily addressable across all browsers for publishers, SSPs, DSPs, and data companies.

Atlanta, Georgia, United States

Performance technology and marketing platform blending in-house ad tech & AI, exclusive supply-side partnerships, and media-buying.

Seoul, Seoul, South Korea

ADOP is a leading advertising platform based in Korea, Indonesia, Thailand and Vietnam. We prove comprehensive solutions to facilitate both the advertisement selling and buying process. Our services include site revenue optimization, programmatic buying and selling, filtering and free news app. ADOP has a tight-knit partnership with Google in several markets and is a Google Certified Publishing Partner (GCPP) in Korea. ADOP also has cooperations with both local and regional ad networks and exchange platforms including Rubicon Project, BidSwitch, Criteo, SpotX, Admeta, PulsePoint, Videology, Daum, RealClick, Wider Planet and more. We are always ready for discussing our digital advertising business. If there have been any players who want to get in to KR, ID and TH market. Please feel free to contact us! * Contact E-mail: [email protected] // Manager: [email protected] * http://www.adop.cc/en * ADOP History: 2018 - JAN. Launched Header Bidding Solution 2017 - JAN. 온라인 광고 마케팅 서비스 'ATOM'​ 출시 - JUN. ADOP 맥스서밋 2017 어워즈 미디어부문 수상 - NOV. ADOP 광고 모니터링 서비스 '라벨'​ 출시 2016 - ADOP 인도네시아, 태국 GCPP 선정 - SSP 플랫폼 'COMPASS'​ 런칭 - 중소기업 '이노비즈'​ 선정 - 사이판 해외 워크샵 - 'Out-Stream'​ 비디오 광고 상품 출시 2015 - Google Certified Publishing Partner 선정 - 모바일 뉴스 어플리케이션 개발 - 자체 개발 DSP 플랫폼 런칭 - 온라인 콘텐츠 가치 향상 특허 등록 2014 - Q4 APAC 최고 성장 파트너 선정 - 'Startup Asia Jakarta 2014'​ 참가 - 콘텐츠 필터링 솔루션 개발 및 특허 출원 - Google Analytics Certified Partner(GACP) - Google Adsense Certified Partner(GASCP) 2013 - Google DFP Premium Partner 지정 (APAC 최초) - Google APAC Reseller Summit - 미디어 SEO 솔루션 제공 - SEO Checker Solution 런칭 - 일 4,000만 PVs에 애드센스 노출 2012 - DFP SB세팅 및 관리 대행업무 시작 - Google AdSense Reseller 론칭 2011 - Google AdSense Reseller 계약 (아시아에서 6번째) - ADOP 설립