programmatic
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The Startup That Turned 2,300 College Newspapers Into One Checkout
A former college newspaper editor got tired of cold-calling campuses one at a time. So he built the switchboard - and turned 2,300 student media outlets into a single ad buy for brands chasing 20 million students.
Perion Network
The Israeli adtech company spent a decade buying its way across every screen. Now, after Microsoft pulled the rug on its search business, Perion is betting the whole company on one AI platform - and on the screens Google can't own.
Mediaocean
It is the least famous company handling a quarter of the world's ad money. Mediaocean is the operating system agencies and brands use to plan, buy, serve and pay for advertising - and after buying Innovid, it wants to own every step in between.
Adsquare
Adsquare is a Berlin-based location intelligence company that turns real-world movement and behaviour into audience data marketers can use to plan, target, optimize and measure advertising campaigns. Founded in 2012, its mobile-first data exchange connects location, app-usage, demographic and offline signals to leading DSPs, SSPs and CDPs, powering geocontextual, proximity and audience targeting across mobile, online and digital out-of-home (DOOH). The platform is built privacy-first around consent-based signals and serves thousands of advertisers and dozens of platform partners across Europe, North America and Asia-Pacific.
Big Happy
Big Happy is a New York-based advertising technology company that turns everyday screens into immersive, cinematic brand experiences. Founded in 2019 by adtech and media-buying veterans, it operates an end-to-end platform spanning creative development, media activation and campaign measurement across high-impact mobile formats and 3D digital out-of-home (DOOH). The company works with 300+ brands including Coca-Cola, Verizon, Samsung and the U.S. Army, reaching 7,000+ premium mobile publishers and over one million DOOH screens across North America.
Good-Loop
Good-Loop is an ethical advertising technology company that turns ad spend into a force for good. Its 'view-to-donate' formats let people unlock a free charitable donation - funded by the advertiser - simply by choosing to watch an ad, while its Green Media tools measure and cut the carbon footprint of digital campaigns. A certified B Corporation founded in Edinburgh in 2016 by Amy Williams and Daniel Winterstein, Good-Loop has raised more than $6M for charities including Save the Children, WaterAid and WWF, and works with brands such as Unilever, Nestle, Levi's and Asics.
Martini Media
Martini Media is an independent marketing firm that connects premium and luxury brands with affluent, high-net-worth audiences online. Founded in 2008 and incubated by Venrock, the company builds integrated campaigns that combine bespoke high-impact ad creative, a curated portfolio of 200+ passion-based publishers, and proprietary audience insights across display, mobile, and connected TV. Now operating as a unit of Evolve Media and led by CEO Vincent Krsulich, Martini Media has run more than 1,000 campaigns for over 300 upscale advertisers.
Locala
Locala is a French-founded omnichannel advertising platform that helps global brands plan, buy, and measure multi-location marketing campaigns. Using location data, consumer-mobility signals, and machine learning, it connects online ad spend to real-world outcomes like store visits and foot traffic. Formerly known as S4M (Success for Mobile), the company rebranded to Locala in 2022 and works with brands including L'Oreal, Volkswagen/Audi, Subway, McDonald's, Nespresso, and L'Occitane.
Picnic
Picnic is a London-born ad-tech company building user-first advertising for the open web. It packages social-media-style ad formats - Stories, swipe-to-act, emoji reactions - and delivers them on premium publisher inventory, aiming to make ads people actually engage with rather than ignore. Founded in 2017 by Matthew Goldhill, Picnic pairs its creative formats with PIQ, an inventory-quality platform, and ships every campaign carbon neutral, claiming roughly 50% lower emissions than the industry standard.
CloudX
CloudX is an AI-native ad monetization platform for mobile publishers, built by the founders of MoPub and MAX. It rebuilds the programmatic supply-side stack so autonomous AI agents - not manual ops teams - can run auctions, manage price floors, and optimize revenue, with auction integrity verified inside Trusted Execution Environments. The company launched out of stealth in November 2025 with a $30M Series A led by Addition.
InMobi
InMobi is a global mobile advertising and marketing technology company founded in 2007 in Bangalore, India. It became India's first unicorn in 2011 and runs a stack of mobile-first products - the InMobi DSP, InMobi Exchange, and the consumer lockscreen and AI commerce platform Glance - reaching billions of devices and processing over a trillion ad requests monthly. In 2025 it doubled down on artificial intelligence, launching its Helix AI layer and Glance AI commerce, while preparing for a planned domestic IPO in India.