Top list · London
Advertising & Adtech startups in London
96 advertising & Adtech startups in London have raised money in rounds we track. These are the 50 that have raised the most, $1.7B between them.
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SynthesiaSynthesia is a British multinational AI company based in London, founded in 2017.Synthesia is a British multinational AI company based in London, founded in 2017.
Founded 2017London, United Kingdom$506Mlast round Jan 2026 - 2
Kape TechnologiesKape Technologies is an online distribution and digital product hub.Kape Technologies is an online distribution and digital product hub.
Founded 2011London, United Kingdom$215Mlast round Sept 2022 - 3
Two CirclesTwo Circles is an international sports and entertainment marketing agency founded in 2011, headquartered in London.Two Circles is an international sports and entertainment marketing agency founded in 2011, headquartered in London.
Founded 2011London, United Kingdom$130Mlast round Oct 2024 - 4
KindredKindred wants products, movements and campaigns that stand for something.Kindred wants products, movements and campaigns that stand for something.
Founded 2010London, United Kingdom$126Mlast round Feb 2026 - 5
AdthenaAdthena is a competitive intelligence solution for search marketers.Adthena is a competitive intelligence solution for search marketers.
Founded 2012London, United Kingdom$110Mlast round Jul 2026 - 6
PermutivePermutive is a London-based technology company that specializes in predictive data collaboration for the open internet.Permutive is a London-based technology company that specializes in predictive data collaboration for the open internet.
Founded 2016London, United Kingdom$76Mlast round Nov 2021 - 7
OguryOgury Limited is a global adtech company founded in February 2014 and based in London, United Kingdom.Ogury Limited is a global adtech company founded in February 2014 and based in London, United Kingdom.
Founded 2014London, United Kingdom$66Mlast round Jan 2026 - 8
MirriadMirriad's patented, AI and computer vision technology dynamically inserts products and innovative signage formats after content is produced.Mirriad's patented, AI and computer vision technology dynamically inserts products and innovative signage formats after content is produced.
Founded 2007London, United Kingdom$51Mlast round Dec 2017 - 9
SuperAwesomeSuperAwesome powers the youth digital ecosystem, bringing together proprietary ad and gaming products, audience insights and compliance capabilities to build a SuperAwesome powers the youth digital ecosystem, bringing together proprietary ad and gaming products, audience insights and compliance capabilities to build a
Founded 2013London, United Kingdom$41Mlast round Feb 2019 - 10
Mention MeMention Me is a London-based Customer Advocacy Intelligence Platform that helps ecommerce brands identify, acquire, and nurture their best customers.Mention Me is a London-based Customer Advocacy Intelligence Platform that helps ecommerce brands identify, acquire, and nurture their best customers.
Founded 2013London, United Kingdom$38Mlast round Dec 2022 - 11
RealeyesRealeyes is an innovative artificial intelligence company founded in 2007 at Oxford University, specializing in computer vision, emotion AI, and human verificatRealeyes is an innovative artificial intelligence company founded in 2007 at Oxford University, specializing in computer vision, emotion AI, and human verificat
Founded 2007London, United Kingdom$37Mlast round Jun 2019 - 12
LoopMeLoopMe is focused on brand advertising, using AI, attribution, and analytics to deliver measurable outcomes.LoopMe is focused on brand advertising, using AI, attribution, and analytics to deliver measurable outcomes.
Founded 2012London, United Kingdom$32Mlast round Feb 2022 - 13
FanvueFanvue is a British AI-powered subscription social platform founded in 2020 and based in London.Fanvue is a British AI-powered subscription social platform founded in 2020 and based in London.
Founded 2021London, United Kingdom$22Mlast round Jan 2026 - 14
AudiomobAudiomob is a leading non-intrusive in-game audio discovery platform that helps mobile game developers monetize their audiences through seamless audio advertisements.Audiomob is a leading non-intrusive in-game audio discovery platform that helps mobile game developers monetize their audiences through seamless audio advertisements.
Founded 2020London, United Kingdom$18Mlast round Mar 2026 - 15
MiappiMiappi helps brands to discover authentic consumer stories, manage the digital rights and to distribute to marketing channels and ecommerce.Miappi helps brands to discover authentic consumer stories, manage the digital rights and to distribute to marketing channels and ecommerce.
Founded 2012London, United Kingdom$18Mlast round Nov 2023 - 16
more2more2 is a London-based consultancy that specializes in customer science and data-driven marketing.more2 is a London-based consultancy that specializes in customer science and data-driven marketing.
Founded 2002London, United Kingdom$17Mlast round Sept 2015 - 17
VidsyVidsy is a global online creative community and technology platform that enhances video advertising by connecting enterprise brands with a diverse network of moVidsy is a global online creative community and technology platform that enhances video advertising by connecting enterprise brands with a diverse network of mo
Founded 2015London, United Kingdom$17Mlast round Oct 2021 - 18
AdbrainAdbrain powers marketers and their partners to understand and engage with their customers 1:1 across devices, channels and platforms.Adbrain powers marketers and their partners to understand and engage with their customers 1:1 across devices, channels and platforms.
Founded 2012London, United Kingdom$17Mlast round Feb 2016 - 19
CaptifyCaptify offers a search retargeting service that enables advertisers to focus on users to match their desired audience with inventory.Captify offers a search retargeting service that enables advertisers to focus on users to match their desired audience with inventory.
Founded 2011London, United Kingdom$14Mlast round Jun 2015 - 20
The Exchange LabThe Exchange Lab, a digital media marketplace, delivers campaigns evaluating the audience interactions to help its clients find prospects.The Exchange Lab, a digital media marketplace, delivers campaigns evaluating the audience interactions to help its clients find prospects.
Founded 2007London, United Kingdom$14Mlast round Dec 2013 - 21
AuddyAuddy is a London-based audio and podcast publishing company that connects brands, organizations, and creators with targeted audiences through innovative audio solutions.Auddy is a London-based audio and podcast publishing company that connects brands, organizations, and creators with targeted audiences through innovative audio solutions.
Founded 2020London, United Kingdom$12Mlast round Feb 2025 - 22
Ocean OutdoorOcean is a media advertising company specialized in designing iconic landmark large-format digital banners in super-premium locations.Ocean is a media advertising company specialized in designing iconic landmark large-format digital banners in super-premium locations.
Founded 2007London, United Kingdom$12Mlast round May 2008 - 23
YieldifyYieldify is a personalization platform that helps marketers unlock more revenue by engaging their customers with personalized experiences.Yieldify is a personalization platform that helps marketers unlock more revenue by engaging their customers with personalized experiences.
Founded 2013London, United Kingdom$12Mlast round Jun 2015 - 24
Relative InsightRelative Insight is a British technology and data analytics company founded in 2012 by Dr.Relative Insight is a British technology and data analytics company founded in 2012 by Dr.
Founded 2012London, United Kingdom$12Mlast round Mar 2022 - 25
BidstackBidstack reshapes video game monetisation with Dynamic Ad Placements that engage players and connect brands into virtual worlds responsibly.Bidstack reshapes video game monetisation with Dynamic Ad Placements that engage players and connect brands into virtual worlds responsibly.
Founded 2015London, United Kingdom$11Mlast round Oct 2022 - 26
BuyapowaBuyapowa is a London-based marketing technology company that specializes in cloud-based referral and reward marketing software.Buyapowa is a London-based marketing technology company that specializes in cloud-based referral and reward marketing software.
Founded 2011London, United Kingdom$11Mlast round May 2022 - 27
SmartologyDigital advertising technology companyDigital advertising technology company
Founded 2010London, United Kingdom$9.5Mlast round Dec 2024 - 28
Quill ContentWe produce quality digital content for businesses to use on their websites and social media.\\We specialise in Primary Content: the critical pre-purchase informWe produce quality digital content for businesses to use on their websites and social media.\\We specialise in Primary Content: the critical pre-purchase inform
Founded 2011London, United Kingdom$9.1Mlast round Mar 2014 - 29
PixoneyePixoneye develops a digital marketing platform that offers personalized and programmatic marketing and image understanding solutions.Pixoneye develops a digital marketing platform that offers personalized and programmatic marketing and image understanding solutions.
Founded 2014London, United Kingdom$8.3Mlast round May 2018 - 30
Glow Digital MediaGlow Digital Media provides social network advertising services.Glow Digital Media provides social network advertising services.
Founded 2011London, United Kingdom$8.3Mlast round Jul 2014 - 31
AdfonicAdfonic is an AI click fraud prevention software platform, designed to safeguard digital advertisers and businesses against fraudulent clicks and malicious actiAdfonic is an AI click fraud prevention software platform, designed to safeguard digital advertisers and businesses against fraudulent clicks and malicious acti
Founded 2008London, United Kingdom$8.1Mlast round Sept 2011 - 32
AMTAgentic Marketing Technologies, Inc.Agentic Marketing Technologies, Inc.
Founded 2014London, United Kingdom$7.5Mlast round Oct 2010 - 33
WooshiiVideo Development And OptimizationVideo Development And Optimization
Founded 2009London, United Kingdom$5.5Mlast round Jun 2019 - 34
Laminar GlobalLaminar Global Limited (Laminar) is a Platform as a Service (PaaS) supplier.Laminar Global Limited (Laminar) is a Platform as a Service (PaaS) supplier.
Founded 2020London, United Kingdom$5.1Mlast round May 2022 - 35
PubXpubX is a London-based startup founded in 2020 that specializes in Publisher Technology (PubTech) solutions using Artificial Intelligence (AI) and automation.pubX is a London-based startup founded in 2020 that specializes in Publisher Technology (PubTech) solutions using Artificial Intelligence (AI) and automation.
Founded 2020London, United Kingdom$5.0Mlast round Oct 2026 - 36
AdludioAdludio is an AI-powered brand performance platform that specializes in interactive, mobile-first advertising campaigns.Adludio is an AI-powered brand performance platform that specializes in interactive, mobile-first advertising campaigns.
Founded 2015London, United Kingdom$4.1Mlast round Apr 2023 - 37
Lumen ResearchLumen is a specialist eye tracking research agency based in London, who help optimise advertising across a number of platforms.Lumen is a specialist eye tracking research agency based in London, who help optimise advertising across a number of platforms.
Founded 2013London, United Kingdom$3.8Mlast round Sept 2024 - 38
Ad-MOTOAd-MOTO is a London-based digital out-of-home (DOOH) advertising company that was founded in 2020.Ad-MOTO is a London-based digital out-of-home (DOOH) advertising company that was founded in 2020.
Founded 2020London, United Kingdom$3.7Mlast round May 2025 - 39
ContactContact is a UK-based platform launched in 2020, designed to streamline bookings and payments for the fashion and creative industries.Contact is a UK-based platform launched in 2020, designed to streamline bookings and payments for the fashion and creative industries.
Founded 2018London, United Kingdom$3.7Mlast round May 2022 - 40
DrovoDrovo, based in London, is a leading transit media advertising technology company that specializes in out-of-home (OOH) advertising.Drovo, based in London, is a leading transit media advertising technology company that specializes in out-of-home (OOH) advertising.
Founded 2015London, United Kingdom$3.6Mlast round Oct 2023 - 41
CrowdIt LtdCrowdit is a mobile based application that enables users to find out what events and deals are available in their city.Crowdit is a mobile based application that enables users to find out what events and deals are available in their city.
Founded 2012London, United Kingdom$3.6Mlast round Nov 2015 - 42InSkin MediaInSkin Media is an advertising technology business, which develops high-impact, non-intrusive brand advertising formats.
InSkin Media is an advertising technology business, which develops high-impact, non-intrusive brand advertising formats.
Founded 2009London, United Kingdom$3.2Mlast round Oct 2012 - 43LandVaultLandVault is a programmatic monetization platform for in-game advertising.
LandVault is a programmatic monetization platform for in-game advertising.
Founded -London, United Kingdom$3.0Mlast round Mar 2023 - 44
Blend MediaBlend Media is a London-based company founded in 2015 that specializes in creating and licensing immersive content, including 360° video, virtual reality (VR), Blend Media is a London-based company founded in 2015 that specializes in creating and licensing immersive content, including 360° video, virtual reality (VR),
Founded 2016London, United Kingdom$2.9Mlast round May 2021 - 45
AggeroAggero is an AI-powered technology company based in London that specializes in video social listening and analytics.Aggero is an AI-powered technology company based in London that specializes in video social listening and analytics.
Founded 2018London, United Kingdom$2.6Mlast round Mar 2022 - 46
Admedo LtdAdmedo provides a self-serve online advertising platform for businesses and agencies.Admedo provides a self-serve online advertising platform for businesses and agencies.
Founded 2013London, United Kingdom$2.5Mlast round Jul 2014 - 47
Sine DigitalSINE Digital is a performance marketing agency based in London and New York, specializing in the live entertainment, sports, fashion, and e-commerce sectors.SINE Digital is a performance marketing agency based in London and New York, specializing in the live entertainment, sports, fashion, and e-commerce sectors.
Founded 2018London, United Kingdom$2.5Mlast round May 2024 - 48
Nodals AINodals AI is a London-based advertising platform that leverages AI technology to connect advertisers with first-party data from media owners.Nodals AI is a London-based advertising platform that leverages AI technology to connect advertisers with first-party data from media owners.
Founded 2024London, United Kingdom$2.5Mlast round Feb 2025 - 49
CheckoutSmartCheckoutSmart is a UK-based FMCG marketing and shopper-engagement company dedicated to enhancing the online reputation of brands and driving shopper activation CheckoutSmart is a UK-based FMCG marketing and shopper-engagement company dedicated to enhancing the online reputation of brands and driving shopper activation
Founded 2012London, United Kingdom$2.4Mlast round Nov 2014 - 50
Captive MediaCaptive Media manufactures an interactive entertainment and digital signage system for installation in washrooms.Captive Media manufactures an interactive entertainment and digital signage system for installation in washrooms.
Founded 2011London, United Kingdom$2.2Mlast round Feb 2015
London, United KingdomCompanies whose funding rounds we classed in this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.
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LAdvertising & Adtech startups in the United States1,107 companies · $19BS
5KTAdvertising & Adtech startups in the United Kingdom182 companies · $3.0B
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WGAdvertising & Adtech startups in New York148 companies · $4.2B
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PAdvertising & Adtech startups founded in 201891 companies · $798MPW5Advertising & Adtech startups that raised in 202685 companies · $3.6B in 2026
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WTAdvertising & Adtech startups in France82 companies · $1.5BWG5
VAdvertising & Adtech startups founded in 201977 companies · $1.3B
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FAdvertising & Adtech startups in San Francisco75 companies · $2.4BMore lists for London
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PDStartups in London3,521 companies · $51BIL
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UAI startups in London479 companies · $18B
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FIT Services startups in London400 companies · $3.0BIL
VBSHealth startups in London300 companies · $9.9BF
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RFinancial Services startups in London282 companies · $22BIL
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MHealthcare startups in London191 companies · $6.9BFCR
CFintech startups in London166 companies · $15B
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EBig Data & Analytics startups in London164 companies · $3.3B