Top Adtech Startups in 2026

matchinguu is a mobile ad-tech company. Our goal is to change the way app publishers and advertisers interact with audiences. Through our realtime push- and proximity-marketing platform we empower engagement that is more targeted and highly relevant. We believe that optimizing audience sizes for relevance will always lead to the highest customer satisfaction and conversion. A seamless flow between the physical reality and the digital world is optimizing ROI for our app publishers. By connecting apps in our network, we provide new options to grow traffic and deliver innovative monetization opportunities without being intrusive to their users.

Klover’s mission is simple: We’re systematically leveling the playing field by giving low cost access to modern financial services. How do we do it? We unlock these products and services by transparently leveraging a valuable asset, your permissioned data. Our customers get it and have already saved hundreds of dollars a year. Founded by a team of data and ad-tech veterans with several high growth businesses and exits under their belts, Klover a venture-backed startup is poised for success. Come join our high-growth team of intelligent, fast-paced and mission-driven individuals here at Klover

Applecart is a high growth marketing technology company based in New York City, founded in 2013. Applecart has developed a proprietary social graph platform that uses publicly available data to map over 25 billion social relationships between more than 250 million adult Americans. Applecart’s platform helps major corporations, national nonprofit organizations, and high-profile political campaigns with their highest stakes marketing challenge: reaching hard-to-reach audiences of decision makers, spanning corporate executives, legislators, regulators, investors, members of the media, and more. For years, marketing technology businesses have focused on solving b2c (consumer) marketing challenges (e.g. look-a-like modeling to find new customers), but the traditional pay-per-impression advertising model has left a massive opportunity unsolved for: how to market when a company’s target isn’t the average consumer, but is instead a single, senior decision maker. Applecart is the solution to this problem for some of the world’s most prominent organizations. Quick facts about us: Applecart has generated over $30M in revenue, with annual revenues in excess of $10M. Our senior leadership team includes two members of the 2021 Forbes 30 under 30 list for Marketing and Advertising, a former senior White House advisor, one of the earliest sales leaders at Google and Twitter, and two of the Democratic Party’s most successful pollsters and strategists Our investors include global sports, entertainment and marketing giant Endeavor, KKR Co-Chairman and Co-CEO Henry Kravis, entrepreneur Chris Burch, a founder of Palantir, senior engineering leaders at Twitter and Yelp, past CEOs of Fortune 50 companies and a number of well-known venture capitalists. Endeavor CEO Ari Emanuel is a board member of the company. Current and past clients include Blackstone, Boeing, KKR, the Environmental Defense Fund, the Business Roundtable, Governor John Kasich, Congressman Conor Lamb and Republican Vote

Creators don't have a content problem. They have a workflow problem. The average creator juggles 5-7 disconnected tools to go from idea to published post — one app for captions, another for editing, another for scheduling, another for analytics. Nothing talks to each other. Every handoff is a place where momentum, quality, or time gets lost. Infleuince is the infrastructure that closes those gaps. It's a unified system that coordinates the full content lifecycle — ideation, generation, transformation, publishing, and analytics — in one continuous flow instead of five disconnected ones. Think of it less as another creator app, and more as the operating layer underneath creator workflows entirely. We didn't build this from a hunch. Through NSF I-Corps (University of Virginia) and two rounds of customer discovery with 25+ creators, we found that editing was the #1 unprompted pain point, speed and time savings were the most valued outcome, and 73% of creators said they'd pay to solve it. Infleuince is built directly against that data. We're pre-revenue with an active, converting waitlist, backed by completion of NSF I-Corps and the two19 fellowship, and building in the open with the same tool we ask creators to trust — Infleuince runs on Infleuince. If you believe creator tooling should be infrastructure, not a feature graveyard, we're building the category.

Firsthand is an exciting seed-stage startup at the cutting edge of media, commerce, and AI. We’re founded and funded by some of NYC’s most prolific tech builders, plus well-backed by top-tier VCs and AI pioneers. We have offices in NYC and also support hybrid work. We welcome top talent from anywhere in the United States.

Star is a global team of builders. We connect strategy, design, and engineering services into a seamless workflow devised to build solutions with the right focus on impact, scalability, performance and prudence. We anchor everything we do in clear and compelling endgames to create superior solutions and commercial successes for you. Our delivery centers are located in Ukraine, Poland and Vietnam, but also ensure availability of near-shore team in our studios in US, Germany, UK, Denmark and Japan. Our 750 innovators and experts exist to make great ideas shine. Services: End-to-end Product Development Industrial and Digital Design Web and Mobile Engineering Cloud Engineering & DevOps Quality Assurance Embedded Software & Hardware Engineering Data Science Service Design & Storytelling Product Management Project Management

Crisscross uses AI to solve one of the biggest unsolved problems in the $40B global B2B advertising market: knowing which companies are actively in-market for vendors. We’re building the AI-powered B2B vendor discovery platform — a global taxonomy of vendors, capabilities, categories, and markets that organizes a $6T professional-services market and helps buyers move from scattered research to expert vendor matching using natural language. The deeper opportunity is that Crisscross captures live vendor-selection behavior: companies actively evaluating and choosing providers. That creates what I believe is one of the most valuable missing data assets in B2B advertising. The goal is to identify in-market companies, understand the relevant buying committees through firmographic and identity data, and activate those audiences through privacy-safe programmatic channels.

Elaview is a B2B marketplace that connects property owners with businesses seeking physical advertising space. We make it easy for landlords, property managers, and asset owners to monetize underutilized advertising locations such as building walls, windows, vehicles, billboards, and other high-visibility surfaces. Traditional outdoor advertising can be fragmented, time-consuming, and difficult to access. Businesses often struggle to find suitable advertising locations, while property owners may lack an efficient way to showcase and rent their available spaces. Elaview bridges this gap by providing a centralized platform where both sides can connect, collaborate, and transact more effectively. Through our platform, property owners can list available advertising spaces, provide relevant details, and reach a wider audience of potential advertisers. Businesses can discover advertising opportunities that align with their target audience, location preferences, and marketing objectives. By simplifying the discovery and booking process, Elaview helps reduce friction and improve transparency in the outdoor advertising market. Our mission is to make physical advertising space more accessible, discoverable, and efficient through technology. We believe that every valuable advertising location should have the opportunity to generate revenue, and every business should have a straightforward way to find impactful advertising opportunities. As a growing startup, we are focused on building innovative solutions that bring greater efficiency to the advertising ecosystem. We are committed to creating value for property owners, advertisers, and partners by streamlining how physical advertising space is bought, sold, and managed. At Elaview, we are reimagining outdoor advertising by creating a marketplace that connects supply and demand in a simple, scalable, and technology-driven way.