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Top London Marketing Tech Companies (349)

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.


Artificial Intelligence • Digital Media • eCommerce • Marketing Tech • Software
12 Offices
800 Employees

Rokt is the global leader in ecommerce, unlocking real-time relevance in the moment that matters most - The Transaction Moment. Rokt’s AI Brain and Ecommerce Network powers billions of transactions connecting hundreds of millions of customers, and is trusted to do this by the world’s leading companies including Live Nation, Macy’s, AMC Theatres, PayPal, Uber, Hulu, Staples, Albertsons and HelloFresh. Headquartered in New York City, Rokt has offices across North America, Europe, and the Asia-Pacific region. To learn more, visit Rokt.com.

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Consumer Web • eCommerce • Marketing Tech • Retail • Software • Analytics • Generative AI
6 Offices
2,000 Employees

Klaviyo (NYSE: KVYO) is the only CRM built for B2C brands. Powered by its built-in data platform and AI insights, Klaviyo combines marketing automation, analytics, and customer service into one unified solution, making it easy for businesses to know their customers and grow faster. Klaviyo (CLAY-vee-oh) helps relationship-driven brands like Mattel, Glossier, Core Power Yoga, Daily Harvest and 167,000+ others deliver 1:1 experiences at scale, improve efficiency, and drive revenue.


Marketing Tech • Mobile • Software
15 Offices
1,500 Employees

At Braze, we believe in the passion of our people. We seek to ignite that passion by setting high standards, championing teamwork, and creating work-life harmony. We thrive when people add their unique perspectives to our ever-growing teams—and we strive to empower you to make an impact that fuels both you, and our business.


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.


Agency • Gaming • Marketing Tech • Mobile • Analytics
9 Offices
2,300 Employees

tms unites technology and marketing and sourcing to drive transformational change for the world’s leading brands. With 1200+ employees across 26 countries, we offer an impressive range of solutions — from inspiration and innovation to category management and delivery. ​ Headquartered in Chicago with 10 offices worldwide, we are responsible for some of the world’s most successful and iconic long-term marketing platforms, including McDonald’s Happy Meal and MONOPOLY programs. Operating as a creative agency, a strategic consultancy and a technology provider, we engage with over 110 million customers every single day for clients including McDonald’s, adidas, T-Mobile, Starbucks, Vue and O2.


Big Data • Marketing Tech • Sales • Software • Analytics • Big Data Analytics
7 Offices
230 Employees

Built on the ethos of making researchers’ jobs easier, PureSpectrum offers a complete end-to-end market research and insights platform. Our customers are always at the forefront of our minds as we push the industry’s data quality standards forward. Proud to be awarded MR Supplier of the Year in 2021, PureSpectrum continues to provide industry-leading data quality. PureSpectrum developed PureScore™ which monitors survey takers' long-term behavior on our platform and blocks poor respondents from participating, ensuring high-quality data for our clients. PureSpectrum is a simple yet innovative research experience from project inception to final reporting. We offer an in-house sample Marketplace Platform alongside an easy-to-use Insights Platform. This synergy provides true speed to insights by giving researchers the ability to program studies, quickly access high-quality respondents, and analyze data all on a single dashboard. With PureSpectrum, you get the best of everything: agile research with high-quality data you can trust. On the PureSpectrum Marketplace and Insights Platforms, researchers are empowered to run projects at whatever cadence their research demands. Our users have the power to access one of the largest consumer datasets available and only pay for the research they need. In the few years since its inception, PureSpectrum has been named one of the Fastest Growing Companies in North America on Deloitte’s Fast 500 since 2020 and ranked for four years in a row on the GRIT Top 50 Most Innovative List and the Inc. 5000 lists.


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. ⚡️


eCommerce • Information Technology • Marketing Tech • Software
7 Offices
430 Employees

Akeneo is the product experience (PX) company and global leader in Product Information Management (PIM). Akeneo empowers business leaders with software, education, and an engaged community all focused on the practice of product experience management. Leading brands, manufacturers, distributors, and retailers, including Chico’s, CarParts.com, TaylorMade Golf, Rail Europe, Kering, and more trust Akeneo to scale their commerce initiatives. Using Akeneo’s intelligent Product Cloud, companies can create elevated product experiences with user-friendly and AI-powered product data enrichment, management, syndication, and supplier data onboarding, and an app marketplace and partner network to meet business and buyer needs.


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 • 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.


Artificial Intelligence • Marketing Tech • Software
7 Offices
625 Employees

Movable Ink helps businesses earn attention in a world where time is precious and creativity is power by activating any data into personalized content in any customer engagement. The world's most innovative brands rely on Movable Ink to accelerate their marketing performance. Headquartered in New York City, Movable Ink and its more than 550 employees serve its global client base from operations throughout North America, Central America, the United Kingdom, Europe, Australia, and Japan. Learn more at movableink.com


Digital Media • eCommerce • Enterprise Web • Marketing Tech • Software • Design • SEO
6 Offices
210 Employees

Duda is the leading white label web building platform for digital agencies, SaaS platforms, and web professionals offering web design services to SMBs. Powering more than 1 million websites, Duda offers web professionals a comprehensive suite of tools to build pixel-perfect, feature-rich websites efficiently and at scale.


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.


Information Technology • Marketing Tech
3 Offices
408 Employees

Ingenio is the world’s largest media and marketplace platform dedicated to helping a diverse global community find the light. At Ingenio, this is our mantra, goal, and genuine hope. Light is levity, joy, and wonder; it is also clarity and calm. It enables us to see the world with empathy and compassion, which informs how we approach our work with our customers, advisors, and employees as we create a more resilient world. By supporting thought leaders in spiritual and wellness practices over two decades, Ingenio provides a trusted foundation in this modern transformational age where evolving technologies fuel renewed interest and innovation in emotional and spiritual health. Our curated offerings encompass a wide array of holistic traditions, allowing for easy, stigma-free connection and accessibility for our users to discover their best selves. Inclusive, accessible, and essential, Ingenio is home to a trusted community of advisors whose passion is guidance, connection, and support. Each works with their unique gifts to provide advice and wisdom, helping to answer life’s most important questions. Simply, Ingenio provides a modern compass for navigating this era of awakening. Are you ready to bring more wonder into the world? Find the light at Ingenio


AdTech • Marketing Tech
London, England

Happy to see you came here to learn a little more about us! MullenLowe is a highly creative, integrated communications network committed to always being a challenger. We have talent filled offices in 55 markets around the world. And this is what we believe... 
 In a rapidly changing world, innovative brands grow at twice the pace of their competitors and brands that continue to innovate grow 7x faster. For brands to stay interesting, conversational, and relevant, they need to embrace change.
Our icon offers the perfect metaphor. The octopus has survived over 300 million years precisely because of its fluidity and ability to adapt. It is the only organism that routinely self-edits its own DNA - a model for how brands should behave today. For more information, visit us at mullenloweglobal.com or follow @mullenlowegroup on Instagram.


Marketing Tech
5 Offices
464 Employees

At MOO, we love great design and believe it can work wonders for every business. That’s why we make it simple to create beautiful, expertly crafted business stationery and promotional materials that’ll help you start conversations, open doors and strengthen relationships. MOO launched in 2006 and aims to disrupt the trillion dollar global print industry by combining the values of professional design with accessibility and reach of the web. With rapid annual growth, MOO has become one of the fastest growing print businesses in the world and has over 300 employees across the UK and US London, Boston, Lincoln RI, and Denver CO. We believe in supporting our people to be themselves and be successful – because that’s what makes MOO a great place to work. We’re always looking for bright minds and bushy attitudes, so from software developers to social media specialists, copywriters to customer service heroes, we know we’re only as good as the teams we’ve built. If this sounds like you or someone you know, check out our vacancies and get in touch. Be part of something brilliant.


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