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Top London AdTech Companies (134)

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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.


AdTech • Digital Media • Marketing Tech
6 Offices
570 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
300 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 • 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 almost 1,500 employees. We're headquartered in London and have offices in New York, Medellin, Tallinn, Sofia, Melbourne, Bologna, Vilnius, Lausanne and Singapore.


AdTech • Marketing Tech
London, GB
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, GB
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.


AdTech • Marketing Tech • Professional Services • SEO
London, GB
30 Employees

The Good Marketer is a Digital Marketing Agency based in London which works with SMEs; helping them grow, expand and reach new heights in the digital space. As a small business ourselves, we understand that yours is your baby - your pride and joy. That’s why we make it our mission to take on your vision for the future and act as an extension of your team. Whether you already know a fair bit about marketing or very little at all, when you choose The Good Marketer, you choose a growing team of highly-skilled, knowledgeable and passionate individuals. And it’s with that skill, knowledge and passion that we can help you build your business from the ground up using the most fruitful and relevant marketing channels available be that Facebook, Email, Google or anything else in between.


AdTech • Agency • Marketing Tech
3 Offices
5,090 Employees

Dentsu is the largest agency brand and fifth largest agency group in the world. We provide a wide range of services in eight business domains: Marketing Digital Marketing Creative Sphere Promotions Media Content PR Global Business With more than 60,000 professionals in over 145 countries and regions, Dentsu identifies—through a variety of communication domains—the core issues faced by our clients. We then provide the optimized, integrated solutions required to solve these issues.


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 • Marketing Tech
London, GB
75 Employees

Founded in 2012, Zeo Agency is an international SEO and digital marketing agency that provides SEO (search engine optimization), SEM (search engine marketing), performance marketing and content marketing services to more than 100 clients actively. In 2014, Zeo also founded icerik.com that creates innovative, and magnetic content that engages customers’ target audience. Expanding its services in years, Zeo has developed seo.do, world’s first AI-powered rank tracking tool. Zeo has three offices which are located in Istanbul, Ankara and London. While digital marketing consultancy is operated in Istanbul and London, the R&D studies are conducted at Ankara. Digitalzone Every October, Zeo organizes Digitalzone, the largest digital marketing conference of Eastern Europe and MENA, bringing together valuable speakers and more than 800 participants for two days in Istanbul. (for further information please visit: https://zeo.org/digitalzone/en/) Approach We’re marketing scientists who love SEO and digital marketing to bits, passionately building smart data analysis and creative ideas! Our skilled team of professionals conform to a set of core values to guarantee that we provide unparalleled digital search marketing services to each client. Our approach is ethical, our strategies are bespoke, our tactics are transparent and we understand that success only happens by engaging both humans and search engines. Awards European Search Awards 2023 / Winner -Most Innovative Campaign: icerik.com & Medicana MENA Search Awards 2022 / Winner -Best Use of Search: Zeo & RSS Interactive -Best Low Budget Campaign: Zeo & Armağan Oyuncak European Search Awards 2022 / Winner -Best Low Budget Campaign (SEO): Zeo & Ajansspor UK Search Awards 2019 / Winner -Best Health Campaign: Zeo & Acıbadem MENA Search Awards 2017 / Winner -Best Large SEO Agency: Zeo Agency -Young Search Personality: Mehmet Aktug -Best Local Campaign: Zeo & Enerjisa -Best Content Marketing: Zeo & Yemek.Com


AdTech • Retail • Sales
London, GB
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 • Software • Quantum Computing • Metaverse
29 Offices
244,433 Employees

A problem isn't truly solved until it's solved for all. Googlers build products that help create opportunities for everyone, whether down the street or across the globe. Bring your insight, imagination and a healthy disregard for the impossible. Bring everything that makes you unique. Together, we can build for everyone.


AdTech • Marketing Tech • Professional Services
3 Offices

High-converting campaigns and eye-catching digital experiences—from the performance marketing and web design and development specialists who know the metrics that matter to you.


AdTech • Marketing Tech • Professional Services • Consulting
3 Offices
18 Employees

CEEK is a strategic digital marketing agency that believes in the power of digital channels to increase revenue by utilising our specialist in-house resources in social media management, web development, search engine marketing, paid targeting and influencer marketing.


AdTech • Agency • Marketing Tech • Social Media • Software • Design • SEO
5 Offices
24 Employees

Bird have been helping customers achieve digital marketing success for over a decade. We apply our knowledge and expertise to deliver exceptional digital services. We stick to what we know and what we are good at, offering the best in Web Design, Pay Per Click and Search Engine Optimisation. Our aim is to bring our customer’s visions to life. We continually hone and refine our processes, investing a great deal of time and resource into research and development to ensure we are up-to-date with current design trends and digital marketing best practices. We have offices in London, New York and Dubai. Our teams work hard to achieve the highest levels of customer satisfaction and deliver a great return on investment for our clients. We truly believe our success is measured by our customer’s success! We also do our best to promote environmental awareness. All of our hosting infrastructure uses renewable energy sources, our offices are paperless and we review our suppliers every year so we can play our part to achieve a more sustainable future!


AdTech
3 Offices
145 Employees

With a wealth of experience working with companies from start-ups and scale-ups all the way through to enterprise companies we are best placed to help you achieve your new business goals. We work closely with your own internal teams to formulate the best campaign, we are completely transparent about our process and tailor our approach to your own unique product or service offering. Our unique approach combines our unrivaled data set with our knowledgeable team to best position your offering to the end-user market. Generating new opportunities has never been easier.


AdTech • Digital Media • Marketing Tech • SEO
4 Offices
350 Employees

We are iCrossing. We are digital marketers at our core. We have an intimate understanding of the technology, tools, and human skills required to build and activate transformative experiences which can, over time, make significant business impact and propel clients into the future. We use imaginative & collaborative creativity to design experiences that connect on a human level - inspiring audiences to explore, to engage, to choose, to care... about our client’s brand over another. We build seamless digital experiences that influence consumers to act. With unrivaled access to Hearst’s powerful consumer insights, we uncover the data-powered drivers that matter to your audiences and use them to build impactful, creative, consumer-first experiences that provide significant business growth.


AdTech • Marketing Tech • Consulting
London, England, GB
902 Employees

Hi! We’re Brainlabs, a global digital-first media agency. We win for our clients using our unique formula of testing, tech & talent. Testing is in our DNA. We run millions of experiments to deliver remarkable marketing ROI. We call it the Brainlabs Effect™ We’re experts in: - Paid Search - Programmatic - Paid Social - Influencer - Data Strategy - Data Science - SEO - CRO - Creative - GMP - Retail media We also offer consultancy and training along with our proprietary tech stack to supercharge performance


AdTech • Digital Media • Marketing Tech
London, England, GB
42 Employees

Last.fm is a global online music service that tracks people’s music listening habits - across many devices/platforms and via its world-class personalized music service – to help them discover and share new music through recommendations, exploration and the integration of social networking tools. We take messy, crowd-sourced data from music listeners worldwide, and process it to provide global and personal music taste statistics, an “IMDB” style knowledge-base of all music, and recommendations unique to each user. We are a social network that continues to enjoy a large, passionate, active user base with hundreds of millions of users, and we are active on many platforms, with web, desktop and mobile applications. We process billions of data points per month, bringing together third-party applications and services with integrations in Spotify, Deezer, Tidal, VLC, Sonos, and many others. Our vision is to be the connective tissue of music on the internet. We strive to unlock information about your personal relationship to the music you love, and the relationships between music and the rest of the world. Key features of the service: * Your Music Listening History Track all your music listening almost anywhere via a process we invented called "Scrobbling"​ * Personalized Music & Event Recommendations The more users scrobble, the more data we have to help them discover new bands and gigs, based on what they listen to, what their friends, listen to and what’s emerging in hundreds of different genres, globally. * A global encyclopedia of music. Each artist has an individual wiki-based page that collects biographical data, discographies, track details, photographs, aggregated listening stats, similar artist data, user-generated tags and other information. * Social Features Share new favorite bands and weekly listening history to social networks like Facebook and Twitter. Active community for music fans to discuss their discoveries