Top California AdTech Companies (825)

We are an omnichannel customer acquisition platform with offices throughout the US, Canada and Europe. System1 builds desktop and mobile apps, search engines, and online publications that empower consumers with information while respecting their privacy. We also operate brands that include CouponFollow, Startpage and MapQuest. System1 is a champion of AI technology, investing in the first legal AI called Vinny...

Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale. Taboola works with thousands of businesses who advertise directly on Realize, Taboola’s powerful ad platform, reaching approximately 600M daily active users across some of the best publishers in the world. Publishers like NBC News, Yahoo, and OEMs such as Samsung,...

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...

Genius Sports is the layer between what happens on the field and how the world engages with it. Our solutions across the global sports ecosystem are underpinned by our next generation big data and artificial intelligence platform, GeniusIQ. By ingesting and computing multiple real-time data feeds, GeniusIQ powers a wide range of functions and applications across sports performance and officiation, fan engagement,...

DISQO’s mission is to build the world’s most trusted ad measurement platform that fuels brand growth. The world’s largest brands, agencies, and media companies trust DISQO for expert insight and AI-driven intelligence about their advertising performance across all platforms. We capture people’s sentiments and journeys, connecting them with the brands they value and the media they consume. With this identity-based...

Super-charged customer acquisition. Centerfield delivers outcome-based digital marketing solutions and personalized omnichannel experiences for the world’s leading brands. Powered by our proprietary Dugout platform, Centerfield acquires customers at scale for leading residential service, insurance, e-commerce and B2B brands. Centerfield’s digital experiences and digital brands, such as Business.com and BroadbandNow.com, reach more than 150 million in-market shoppers annually. Centerfield is headquartered...

At Edmunds, we’re driven to make car buying easier. Ever since we began publishing printed car guides in the 60's, the company has been in the business of trust, innovating ways to empower and support car shoppers. When Edmunds launched the car industry’s first website in 1995, we established a leadership position online and have never looked back.

GumGum is the contextual-first technology leader transforming digital advertising with AI-powered, non-invasive data and media solutions. We champion effective advertising that uplifts and respects consumers. Our proprietary Contextual, Attention, and Creative solutions create the perfect match between a brand and a consumer in the right moment and mindset. Founded in 2008, GumGum is headquartered in Santa Monica, California, and operates...

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...

Zeta Global (NYSE: ZETA) is the AI 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 –...

People Inc. is America’s largest digital and print publisher. Our 40+ iconic and fast-growing brands harness the best intent-driven content, the fastest sites, and the fewest ads to help nearly 200 million people every month, including 95 percent of US women, make decisions, take action, and find inspiration. People Inc. brands include PEOPLE, Better Homes & Gardens, Verywell, FOOD &...

OpenX is The Intelligent SSP™ (supply-side platform), simplifying advertising for marketers, advertisers, and publishers worldwide. As one of the largest SSPs globally, OpenX combines the industry’s only fully cloud-based infrastructure with leading AI capabilities to make digital advertising easier and more effective across every format, including CTV. Built to responsibly deliver quality, performance, and adaptability, OpenX makes digital advertising safer,...

ClickMint helps e-commerce brands generate more revenue from the traffic they already pay for. We build and operate channel-adapted shopping funnels for paid social, affiliate, PPC and other acquisition channels—aligning the post-click experience to traffic intent instead of sending every visitor through the same generic path. Our system combines diagnostics, experimentation, measurement and senior operator oversight to improve revenue per...

Attain is the most trusted and comprehensive source for permissioned, real-time purchase data in the United States. By connecting directly with over 10 million consumers, Attain delivers unmatched accuracy and scale across audience activation, insights, and in-flight optimization, and measurement, helping marketers tie every dollar of media to real-world sales outcomes. Attain’s portfolio of owned and operated apps, spanning financial...

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance,...

From film, television, news, theme parks, interactive media, and streaming, our people are at the center of it all. ​Here, we solve complex and business-critical problems. That’s why we’re looking for people to help us continue our evolution, imagining and delivering the most innovative and disruptive products and services through the latest tech advancements in the industry. ​ Here you...

As one of the fastest growing startups in Los Angeles, we're revolutionizing the way in which companies approach successful video advertising. Our team of award-winning Producers, Editors, Directors, Engineers, and Performance Marketing Managers are building a global studio where we can conceptualize, shoot, and produce hundreds of videos per day. Unlike traditional advertising agencies that pitch creative concepts for companies,...

We are Inspira, an experiential marketing agency that specializes in forging connections between brands and consumers. By humanizing data and intimately understanding the consumer, we’re able to create award-winning brand experiences that propel our partners forward – from up-and-coming brands like Yasso to global entities like Diageo. But, for us, it’s not about just the work. In fact, the great...

Tatari is on a mission to revolutionize TV advertising. We work with some of your favorite disruptor brands—like Calm, Fiverr, OneWheel and Chime—grow their business through linear and streaming TV. We combine a sophisticated media buying platform with proprietary analytics to turn TV advertising into an automated, measurable, and digital-like experience. Our team includes founders and leaders from Google, Microsoft, Stripe,...

Sid Lee is a big-hearted, multidisciplinary creative community known for crafting bold ideas that are rooted in design and informed by culture. Their 700 professionals work as one team from offices in Montréal, Toronto, New York, Paris, London, Los Angeles and Seattle. Driven by the power of community, Sid Lee helps organizations grow through brand building, brand expression and brand...