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Top London AdTech Companies (211)

AdTech • Digital Media • Marketing Tech
16 Offices
5,000 Employees

Comcast Advertising is driving the TV advertising industry forward, from delivering ads to linear and digital audiences to pioneering the tech that makes it possible. We help brands connect with their audiences on every screen using advanced data. Just as important as our work is our inclusive and supportive culture, which has earned us recognition as one of the top ten places to work by Great Place to Work.


AdTech • Big Data • Digital Media • Marketing Tech
16 Offices
900 Employees

Integral Ad Science (IAS) is a leading global media measurement and optimization platform that delivers the industry’s most actionable data to drive superior results for the world’s largest advertisers, publishers, and media platforms. IAS’s software provides comprehensive and enriched data that ensures ads are seen by real people in safe and suitable environments, while improving return on ad spend for advertisers and yield for publishers. Our mission is to be the global benchmark for trust and transparency in digital media quality. For more information, visit integralads.com.

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AdTech • Artificial Intelligence • Digital Media • Marketing Tech • Social Media • Software • Generative AI
8 Offices
805 Employees

We solve for advertising campaign and creative complexities - both key elements to the time/money savings and performance that brands, agencies and businesses seek. Our unified platform combines media, creative, and intelligence, offering end-to-end workflows powered by AI across the open and closed web. With over 700 brands and advertisers, we've proven that dynamic and personalized creative makes advertising impactful. We are on a mission to transform the advertising experience for brands and their consumers. ⚡️


AdTech • Digital Media • News + Entertainment
14 Offices
200,000 Employees

Innovation is in the DNA of The Walt Disney Company. We not only embrace it, we translate it into experiences you can see and feel. From our groundbreaking work in advanced audio-animatronic robots featured in the Disney theme parks, to streaming services that are redefining entertainment, to inventing tools to create new worlds in our films — The Walt Disney Company has spent nearly 100 years immersing audiences in new and stunning experiences using groundbreaking technology. When next generation technology meets talented people ready to tackle challenges still to be imagined, anything can happen.


AdTech • Artificial Intelligence • Marketing Tech • Software • Analytics
13 Offices
2,194 Employees

Zeta Global (NYSE: ZETA) is the AI-Powered Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to make it easier for marketers to acquire, grow and retain customers more efficiently. Through the Zeta Marketing Platform (ZMP), our vision is to make sophisticated marketing simple by unifying identity, intelligence and omnichannel activation into a single platform – powered by one of the industry’s largest proprietary databases and AI. Our enterprise customers across multiple verticals are empowered to personalize experiences with consumers at an individual level across every channel, delivering better results for marketing programs. Zeta was founded in 2007 by David A. Steinberg and John Sculley and is headquartered in New York City with offices around the world.


AdTech • Digital Media • eCommerce • Marketing Tech • Sales
2 Offices
500 Employees

MVF powers growth for our clients by connecting them to potential customers. The digital marketing landscape is complex and constantly evolving. Businesses need experts who are tracking that evolution and finding new ways to innovate and win. This is where MVF comes in. We match readers, buyers, & business leaders with the brands & companies that make the products and services they need. We do this by building relationships with potential customers at each stage of the marketing funnel by offering insights, information, and tools to help them learn more about the things they’re interested in. We build profiles on our audiences, guide them through purchase decisions, and ultimately connect them to the right products/services when they are ready to buy. Our clients trust us as experts in lead generation, which frees up their time to do what they do best.


AdTech • Artificial Intelligence • Machine Learning • Marketing Tech • Software • Sports • Big Data Analytics
13 Offices
1,800 Employees

From enabling sports to better collect and manage their data, to applying it to power better fan engagement, our technology and expertise delivers the difference to more than 700 sports, betting and media partners around the world. Founded in 2001, Genius Sports is now one of the world’s largest sports technology companies with over 1,800 employees. We're headquartered in London and have offices in New York, LA, Medellin, Tallinn, Sofia, Melbourne, Bologna, Vilnius, Lausanne and Singapore.


AdTech • Digital Media • Marketing Tech • Other
3 Offices
173 Employees

adMarketplace is the leader in search advertising on the open web. For over two decades, adMarketplace has delivered relevant search advertising to consumers who skip the legacy search engine results page. The world's largest search advertisers drive measurably incremental results from adMarketplace's exclusive media opportunities across the internet's leading browsers, shopping apps, and editorial sites. Our mission is to shape the consumer journey with relevant search advertising and measure media value transparently across diverse moments of consumer intent.


AdTech • Artificial Intelligence • Digital Media • Marketing Tech
7 Offices
545 Employees

GumGum is a contextual-first, global digital advertising platform that uses advanced AI technology to serve captivating creative ads that drive consumer attention, without the use of personal data. At GumGum, we don’t need to know who you are to deliver relevant and engaging ads that align with your active frame of mind. We believe that a digital advertising industry based on context rather than personal data builds a more equitable and less invasive future for the internet and is better for consumers, publishers and advertisers alike. Our blueprint for the future, The Mindset Matrix™, combines the power of context and creative in digital advertising to deliver superior attention and drive consumer action without sacrificing personal data. To be a part of this next phase of digital advertising that prioritizes data privacy, please visit www.gumgum.com/careers


AdTech • Enterprise Web • Information Technology • Machine Learning • Marketing Tech • Sales
5 Offices
400 Employees

OpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.


AdTech • Big Data • Digital Media • Software
10 Offices
915 Employees

Together, we power advertising that enables billions of people to stay informed, entertained, and connected. We introduce them to new ideas, products, and services that make their lives better. And we help media owners of all sizes realize their full potential. That’s a lot — that’s the power of advertising. But it’s only possible with great technology. And that’s where Magnite comes in. Magnite (NASDAQ: MGNI) is the world’s largest independent sell-side advertising platform. Publishers use our technology to monetize their content across all screens and formats including CTV, online video, display, and audio. Our tech fuels billions of transactions per day!


AdTech • Marketing Tech
London, England
16 Employees

Vying for attention? Vyde for _Active Attention. We shift the consideration needle in video and display advertising by empowering consumers to control their own ad experience. How? With an immersive two-way conversation. Find out more at wearevyde.com


AdTech • Marketing Tech
2 Offices
5,327 Employees

Omnicom Media Group (OMG), the media services division of Omnicom Group Inc., delivers transformational experiences for consumers, clients, and talent. Powered by the Omni marketing orchestration system, OMG connects best-in-class capabilities that enable our full-service media agencies OMD, PHD, and Hearts & Science to deliver more relevant and actionable consumer experiences, more productive and proactive client experiences, and more collaborative and rewarding talent experiences for the more than 24,000 people serving the world’s leading brands in OMG agencies around the globe.


AdTech • Marketing Tech
3 Offices
2,009 Employees

Established in 2004, we are the first and only company to design, build and run bespoke in-house agencies and ecosystems for brands. Today, we create work that delivers business growth, fame and purpose for over 200 clients in 46 countries and counting. Our unique model moves at the speed of modern business to drive change from the inside out; working smarter to make our clients’ money go further, and helping them build better solutions, systems and brands. Client solutions include Unilever’s U-Studio (a platform used by almost three-quarters of Unilever's brands globally), adidas’ off-shore hub and PepsiCo’s global digital team.


AdTech • Retail • Sales
London, England
66 Employees

The Leading Edge is a global insight and strategy consultancy specialising in solving brand, innovation and retail problems. Created with a simple promise to do things differently and to do things better, The Leading Edge believes it’s not just about what clients don’t know, it’s about focusing on what they can do to get better. The Leading Edge partners with clients to help unleash their hidden potential and give them an edge, ultimately delivering focus, inspiration and guidance for an achievable and commercially focused plan


AdTech • eCommerce
3 Offices
683 Employees

Multiple-time Inc. 5000 honoree, INFUSE is a fully integrated, data-fueled, demand generation engine that offers a host of industry-leading solutions designed to help B2B organizations drive qualified interest. We employ a holistic, omni-channel approach, which empowers us to identify, qualify, and produce actionable engagement. Supported by the latest innovations in digital marketing, we generate leads by strategically promoting content through innovative social, targeted display, mobile, and direct outreach campaigns


AdTech • Marketing Tech • Software
2 Offices
101 Employees

Situation is an award-winning agency built for live entertainment brands and championing the power of shared experiences around the world. With 20+ years of award-winning work, Situation is designed to meet the challenges and opportunities facing the live events industry today. We offer full marketing and creative services for experience-based brands: live entertainment, attractions, theater, sports, arts and culture institutions, and more. Are you looking for a partner to support your end-to-end consumer experience? Whether we’re full-service or full-specialist, our preferred way of working is the one that sets our clients up to win. Want to join our team of experience champions? We are always on the hunt for new team members who share our core values: innovation, collaboration, and commitment. We’re dedicated to providing equal employment opportunities and creating a diverse staff, reflective of the experiences we champion and audiences we build. Situation is part of Situation Group, a global collective that supports life-changing impact—partnering with brand experiences that promote understanding, connection, community, and growth.


AdTech • Consumer Web • eCommerce
2 Offices
14,788 Employees

You have loved and trusted our brands for over 170 years. We have a clear purpose, to deliver better everyday health with humanity. Our category-leading brands include Sensodyne, Panadol, Centrum, TUMS, Advil, Otrivin and Voltaren. We combine deep human understanding and trusted science to make everyday health more inclusive, more achievable and more sustainable. Want to learn more about us? Follow to stay up to date


AdTech • Marketing Tech
7 Offices
90,589 Employees

WPP is a creative transformation company. We use the power of creativity to build better futures for our people, planet, clients and communities.


AdTech • Marketing Tech
London, England
138 Employees

Snowplow empowers organizations to generate trustworthy, first-party customer data to power Marketing and Advertising performance. 1.9+ million sites and applications use Snowplow to generate and model first-party customer data from across their digital interfaces to capture descriptive customer journeys and build actionable first-party behavioral profiles. Purposely designed for the data platforms as a single source of truth; marketers, data teams and CDPs can activate Snowplow data across Customer 360, personalization and ML use cases. With Snowplow, organizations like Strava, Autotrader, and Software.com reach, engage and win customers, while retaining an industry-leading data governance posture, with full GDPR and CCPA compliance.


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