Top California AdTech Startups (539)

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...

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...

Today more than ever brands need a competitive edge. A leg up. An ace in the hole. Welcome to ours. As a collective of smart, creative, culturally attuned trailblazers who are as talented, innovative and diverse as today’s America, we are unlike any other communications group on the planet. Recognizing that the rules of consumer engagement have changed, it’s no longer enough for...

Pixability is the leading AI-driven technology and insights provider empowering the world’s largest brands and their agencies to maximize the value of their video advertising on YouTube and CTV. Leveraging its proprietary technology platform and data, Pixability makes every video impression matter by identifying contextually relevant, brand suitable inventory and maximizing cost efficient outcomes. Pixability is the only YouTube partner...

We are a full-service creative and experiential agency that lives for sport, music, and culture. From the biggest moments to the smallest details, we pride ourselves on being in the know and building relationships that matter for brands that matter.

CloudX is redefining the future of mobile advertising for the Intelligence Era. Founded by the creators of MoPub and MAX — two transformative platforms that have reshaped mobile advertising innovation — CloudX is rebuilding the foundation of mobile publisher monetization for a world driven by AI. At its core is a secure, AI-native auction infrastructure powered by Trusted Execution Environments...

Saylor was founded by former clients who believe the future of advertising is entertainment. Our trusted, award-winning team builds brand obsession with audiences by delivering an entertainment experience rather than a moment.

Fuel is a Global Digital Studio focusing on driving results for big brands and their agencies. Fuel has pushed the limits of branded entertainment in digital media, capturing audiences' attention using world-class creative and technology. We’re experts in emerging tools like mobile AR & assistant AI, and have a pedigree developing apps, games and websites alongside the biggest brands and agencies...

New Honor Society (San Francisco | Chicago | Saint Louis) is an award-winning creative boutique that has helped clients like Microsoft, Logitech, Heluva Good and Nestlé Dreyer's/Edy's create greater engagement and advocacy by behaving more like "people."​ As an FCB Company, New Honor Society has the creative fire of a start-up, with the resource depth of a global network. Join...

Hi-Altitude Brands is a fast-growing, industry-leading creative marketing company in California. We pride ourselves on being at the forefront of the health and wellness revolution. Our focus on quality, research, technology, and consumer satisfaction is prevalent in all we do. Our mission is to create a workplace that inspires creative and innovative ideas, where all can contribute and be heard. We...

Founded in 2007, Wild Card is an independent agency created with the goal of building a community of highly-talented, creative people who are passionate about film, TV, music, gaming and advertising. We bring a myriad of talents and passions together to create meaningful, groundbreaking campaigns for our clients and audiences everywhere. Worldbuilding is the driving force behind everything we do. We...

Helping start up or mature company to reach their goals. Marketing/Digital Media Company. Social Media Marketing & Community Management SEO ( 1st page google 1-6 month) Website Creation/Design Video production ads/ viral video Photoshoot Bloggers and Influencers PPC Influencer campaign Branding Traffic/Followers /Likes Marketplace placement ( Fancy, Etsy, Amazon) PR : Celebrities Red Carpet + Editorial Business Consulting : Business Plan and financial advice Introduction between start up/mature company and...

We help B2B businesses connect to their ‘Dream 200’ clients, referral partners, strategic partners and more, and get ROI using a podcast. We are an easy button to launch and run your podcast so you get ROI. Using our Podcast Copilot platform, Rise25 helps you to connect quicker to higher caliber referral partners, clients, strategic partners and industry influencers to generate...

We’re the only AI-powered platform that helps marketers and creative teams create, test, and improve video ads—without long production timelines or guesswork. With Creatify, you can turn any product link into dozens of ready-to-run video ads in seconds. Our newest product, AdMax, acts like your AI ad strategist—finding what works, suggesting improvements, and helping you scale top-performing ads. Today, over 10,000...

KWSM is a full service digital marketing agency made up of journalists. We specialize in website development & SEO, social media strategy & management, content creation (including blogs, e-newsletters and video), PR & influencer marketing, and digital advertising. Clients hire us to create integrated digital marketing strategies to generate leads or sales. Half our clients are B2B and half are B2C. Our...

AdStart Media is a fast-growing performance marketing network, that has been in the digital marketing business since 2017. We bring together publishers and advertisers in the most transparent and effective ways, maximizing their monetization and user acquisition efforts. Our portfolio of offers includes direct and exclusive deals across 200+ converting GEOs, as well as in-house developed offers, which allows us...

Ejam is a performance-based online advertising and marketing leader. Our approach combines decades of Online Marketing experience with the technical know-how to market products at scale. We are located in sunny Newport Beach and consist of energetic team members ready to make the next move in online marketing.

DSPolitical brings together the best data-driven targeting science with a multi-layered advertising strategy to help your campaign find the exact right people online every time. With the richness of television and the targeting ability of direct mail, your online advertising campaign will make a real impact on election day.

At PeopleFinders, we turn information into actionable insights, empowering trust and safety in today’s digital world. PeopleFinders and our affiliated brands are trusted providers of public records searches and analytical data, offering unparalleled insights. At our core, we’re committed to finding, organizing, and making the right information accessible. Founded in 1999, the PeopleFinders team of innovators is dedicated to helping...

The world's largest tech brands trust the global team at Directive Consulting to bring their performance marketing campaign results to life. Directive's proven Customer Generation methodology has generated +$1B in revenue for clients in the last 10 years by blending best-in-class campaigns across Paid Media, SEO, Design, Strategy, RevOps, and Video. It's time for tech companies to stop guessing about...