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Top London AdTech Companies (214)

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.


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.

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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 • 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 • 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 • 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 • 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 • 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 • 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 • Artificial Intelligence • Cloud • Edtech • Enterprise Web • Productivity • Software
2 Offices
514 Employees

Stack Overflow is empowering the world to build for the future. More than 100 million people come to Stack Overflow every month making it one of the most-visited websites in the world. It’s best known for its public platform, which has attracted over 14 million users and helped developers and technologists over 50 billion times since its founding in 2008. Stack Overflow’s Reach & Relevance products include employer branding, content, and advertising, which help technology brands reach developers with content relevant to them. In 2017, Stack Overflow launched a private version of the public Q&A platform so enterprises can capture institutional knowledge, collaborate asynchronously, and boost efficiency across teams. Today, over 10,000 customers partner with Stack Overflow, including Bloomberg, Microsoft, Instacart, Chevron, Expensify, and eBay.


AdTech • Marketing Tech • Sales • Software
2 Offices
32 Employees

Revenue Pulse helps the world’s largest brands maximize their marketing and sales technology investments. As a revenue operations agency, we boast an NPS consistently above 80 – a score miles ahead of our competitors. RP is home to an international team of world-class consultants leading advancements in RevOps. Bottom line: We make your life easier in Marketing Operations, and Sales Operations. Revenue Pulse is a marketing and sales operations consultancy, specializing in generating more revenue and alignment out of your Marketo, HubSpot, Pardot, Salesforce, Eloqua and Dynamics investments. Whether you need help implementing a lead scoring program, lead nurture program, enhancing alignment, attribution or marketing automation platform audits, creative services or dashboards, and analytics, RP is your partner for marketing and sales operations success. Let's talk about the results -- visit us at revenuepulse.com


AdTech • Marketing Tech • Software • Analytics
2 Offices
23 Employees

Future-proofing B2B digital advertising and analytics in a cookieless world. B2B digital advertising and analytics technology for advertisers, agencies and publishers delivering increased control, transparency and insights for their customers. Verified Business Targeting: Discover our specialised B2B Demand-Side Platform for precise targeting, ABM strategies, data insights and seamless integration. B2B Contextual Targeting: Uncover and size up your target audience with dynamic contextual overlays. B2B DCO Targeting: Amplify your brand with dynamic creative across DOOH, audio and display channels for a seamless omnichannel impact. Business level reporting & insights: Access data insights fuelling live campaigns and propelling future growth. Journey, our insights & analytics tool: Demonstrate ROI across your marketing mix, and measure marketing impact on an account level.


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
3 Offices
541 Employees

We are a global community of brand, experience and design experts who use unique methods to deliver positive brand-led business transformation. We believe that brand is behaviour.


AdTech • Digital Media • Marketing Tech • Analytics
6 Offices
1,385 Employees

We’re MiQ, a programmatic media partner for marketers and agencies. Our better connected approach to programmatic advertising means we can connect data, discover insights and activate them in high-performance campaigns to deliver real business outcomes for our clients in an increasingly divided world. Making the most of your data is complex. You need to connect all your first party data, enhance it with the right second and third party data, analyse it with data science technology and resources, then use the insights you gather to build creatives with the right messages and target them to the right audiences with expert programmatic trading. We connect the right people, industry partnerships, and technology in a complete programmatic stack so we can solve your precise business challenges by maximising the value of your data.


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 • eCommerce • Marketing Tech
2 Offices
429 Employees

Grapes Worldwide is a fastest growing global Marketing & Communication agency where we create “Story-Enabled Growth.” We are Data Obsessed and Strategically Engineered thinkers who use communication and technology to drive Brand and Business Growth. With now offices in India and UK From 360 communications and amplification, Grapes Worldwide is a one-stop solution to offer end-to-end solutions to our partners. Our services include Brand and Digital Business Strategy, Communication Planning, Design, Content and Video Production, Social Media, Website Design and Development, SEO, ORM, PR, Influencer Management and Media Planning and Buying, E-commerce Marketplace Management, and more


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 • 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 • Fintech • Marketing Tech
6 Offices
450 Employees

We are a product-driven company that cares about three things: our people, our customers, and our partners. Together, we make commerce more rewarding for everyone by helping businesses attract, understand, and incentivize consumers through their banks’ digital channels. Remember that time you got cash back on a cup of coffee through your banking app? That was us! Cardlytics is headquartered in Atlanta and has offices in New York City, Los Angeles, Menlo Park, Champaign, and London.


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