Top California AdTech Startups (485)

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...

MAI was founded by technologists and operators who spent over a decade building ad platforms and e-commerce engines. They saw that growth-stage businesses often lacked access to the advanced growth technology powering the largest platforms, and set out to change that. Today, a rapidly growing network of D2C brands and apps rely on MAI’s intelligent agents to simplify marketing complexity, uncover...

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...

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 a leading global advertising, media, and ad-tech solutions company connecting brands to consumers by representing top platforms and publishers. Our services are anchored by a world-class sales operation, healthy financials, and unique commercial partnerships with industry leaders such as TelevisaUnivision, Facebook, Twitter, Spotify, LinkedIn, TikTok, and Grab, among others. Our service portfolio enables high-performance campaigns while using highly competitive...

For over 20 years, Passport has partnered with those looking to challenge their category. To think, create and activate. To rebrand and reinvigorate with new stories, and to inspire consumers to press forward. From global brands to start-ups, it's the vision we share. Just like us, they’ve got a hunger for bold new thinking and partnerships that can move the...

For both new & established businesses, anonym is a creative branding agency that blends strategy with innovation to make brands of various industries come to life. Producing high-quality, custom, and intentional content to tell each company's unique story in a compelling way. Our goal — to shape the future, one brand at a time.

Franki is the most rewarding way to find rewarding experiences. Powered by real videos from local foodies and creators, we're making it easier than ever for people to find their next favorite meal, and for business owners to connect with their next best customers. We believe experiences are best shared. That's why we've launched the Franki Social Club--a tiered rewards...

Siege Media is a content marketing agency that focuses on creation, promotion, and strategy.

A FULL SERVICE, STRATEGY&CREATIVITY BASED ANIME MARKETING COMPANY We are the first anime industry-specialized marketing agency in the United States. We provide strategic and creative one-stop marketing solutions. Our mission is to unleash the allure and potential of anime works created by passionate creators from Japan and around the world, using the power of marketing. Our goal is to transform anime into a...

We do everything an award-winning Canadian marketing agency should. Only with a deep understanding of diverse & multicultural audiences. Since 2003, we are a full-service marketing team ready to support your in-house or agency team!

Human Agency is building a world where the most powerful tools of media and technology can and should be used to advance the values and goals of people. Digital advertising today is profit-centered, more complex than it needs to be, and is currently monopolised by those who have existing knowledge, tools and resources. We are changing this by building a...

Bee Techy is a top-tier, remote-first software development agency that builds high-quality digital products with precision, speed, and reliability. We specialize in web and mobile development, AI-driven solutions, and end-to-end engineering support for startups and fast-growing companies. Our team delivers clean, scalable, and production-ready systems that help businesses move faster and innovate confidently. As a growing engineering team, we’re actively hiring...

Lemonlight launched in 2014 with a mission to make marketing videos accessible to small/midsize businesses in a market that catered to large brands. Since then, we’ve become one the largest branded content providers in the world! We’ve worked with over 3,500 brands and are now serving a range of clientele from small businesses to the world’s biggest brands like Amazon,...

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.

At Scorpion Enterprises, we provide a wealth of knowledge to collaborate and build end-to-end strategies for our clients. We check Business Data, Audience Analytics, and Websites and Social Media statistics. With these data-driven insights in place, we form an effective strategy to ensure that our outreach plan goes a long way. We dive deep into understanding clients’ brands and companies...

Blacksmith Agency is a full-service agency, focuses on offering its services within web designing, wireframing and content creation.

Jun means truth. Our advertising platform is the honest, efficient way to get millions of people to engage with video and branded content across devices. The world’s best-known brands choose Jun Group because everything we do is brand-safe, visible, and transparent.

tvScientific is the first and only CTV advertising platform purpose built for serious performance marketers. The tvScientific platform makes TV advertising accessible and measurable for brands and apps of all sizes. tvScientific offers a self-managed solution that simplifies and automates TV buying and optimization, leveraging massive data to prove the actual value of TV advertising. The platform reaches 95% of...