AdTech Startups

Cellr provides a no-code platform that turns physical brand interactions and product touchpoints into measurable digital experiences, offering features such as competitions, loyalty, redemptions, brand protection, and real-time engagement analytics. It serves brands across multiple industries including beverage, FMCG, sports and entertainment, apparel, cosmetics, and pharmaceutical.

1 investor

Centerfield is a marketing and customer acquisition company that uses proprietary technology and first-party data to run digital media buying and advertising campaigns for clients. It operates from offices in Los Angeles and Boston with remote staff.

1 investor

Champhunt is a cricket fan platform offering free-to-play fantasy leagues, live match predictions, and a social community where users post content and earn "runs" that can be redeemed for rewards like vouchers and cricket gear. It targets cricket fans, primarily around Indian cricket events.

1 investor

Magnite operates an independent sell-side advertising technology platform that connects media owners with advertisers, with a focus on programmatic supply and connected/streaming TV (CTV). It provides publishers with tools and direct integrations to monetize inventory across CTV and other digital formats at global scale.

1 investor

Channel Factory operates an AI-powered contextual advertising platform that curates brand-suitable channels and videos for video ad campaigns across YouTube, Meta, TikTok, and CTV. It serves brands and agencies with campaign planning, targeting, real-time optimization, and brand suitability controls to improve ROI and reduce reputational risk.</parameter> <parameter name="founders">[]

1 investor

Chargy is a Spanish data-driven company that offers a marketing channel through free mobile charging stations ("Chargy Marketing"), letting brands collect consumer data and deliver digital content such as surveys, promotional videos, and ads. It targets venues like restaurants, hotels, airports, shopping centers, and universities, providing business intelligence and real-time communication with customers.

1 investor

Megaphone (at chartable.com) is a podcast hosting and monetization platform that lets creators and publishers distribute episodes to podcast apps, insert dynamic ads, and access the Spotify Audience Network. It also provides analytics and promotion tools to help podcasters grow their audience and revenue.

1 investor

Chemistry is a hybrid advertising agency combining creative, digital, and media services for brands. It positions its work around blending creative ideas with data and technology.

1 investor

Chiikishinbunsha publishes and distributes free papers and handles insert-flyer advertising across roughly 1.7 million households in Chiba and Ibaraki prefectures, Japan, using a network of about 2,500 distribution staff. The company positions its weekly push-based household reach as an asset for advertising, recruitment matching, and alliances with web platform operators.

1 investor

Cipio.ai provides AI-powered tools to discover, produce, and optimize user-generated and influencer content for digital advertising on Meta and TikTok. The platform automates creator sourcing, content optimization, and ad performance prediction to help brands reduce creative costs and increase return on ad spend.

1 investor

Citix creates urban advertising and display gadgets designed for pedestrian-focused environments in smart cities.

1 investor

CitrusAd operates a self-serve retail media platform combining on-site monetization (sponsored products, banners, brand pages) with off-site advertising across the open web for retailers and advertisers. Following integration with Epsilon, it offers identity-led targeting to drive sales both online and in-store.

1 investor

CL Educate operates the Career Launcher brand offering test-preparation and aptitude products for competitive exams, the Kestone integrated marketing business, and the DEXIT Global digital assessment platform for recruitment, certifications, and university exams. It serves students and organizations across India and international markets including the United Arab Emirates, United States, Singapore, and Indonesia.

1 investor

Claim is a consumer app that gives users weekly cash-back "Drops" from local restaurants and brands, paying them back via Venmo automatically after they check out with a linked credit card. It serves consumers and restaurants/merchants as an alternative to traditional advertising, and operates in 10 U.S. cities including New York, Los Angeles, and Chicago.

1 investor

Clear Channel Outdoor sells out-of-home advertising, including printed and digital billboards across more than 65 U.S. markets and 55+ commercial airports. It offers creative services and a data suite (CCO RADAR) that uses aggregated mobile location data to plan, optimize, and measure advertising campaigns for brands and marketers.

1 investor

Clickable automates marketing data collection and reporting for agencies and brands, integrating data from social, search, CRM, email, and marketing funnel tools to measure ROI and provide customized dashboards.

1 investor

ClickCease detects and blocks fraudulent and invalid clicks on paid advertising campaigns, automatically adding suspicious IPs to exclusion lists based on click frequency, VPN/proxy use, and visitor behavior. It provides advertisers with click-level transparency and real-time protection for their ad spend.

1 investor

ClickFacts provides software that detects and blocks ad fraud, fake leads, and bot clicks to prevent wasted ad spend for digital advertisers. The platform integrates with popular website builders and ad platforms to protect brands from fraudulent traffic and competitor clicks.

1 investor

1 investor

Cluster provides go-to-market infrastructure for AI agents, giving them access to 50+ GTM data sources, LinkedIn and email sending tools, and the ability to run many subagents in parallel for outbound prospecting. It handles lead building, enrichment, scoring, in-market signals, campaign sequences, and gifting for sales and outbound teams working through models like Claude and Codex.

1 investor

CLX Europe provides end-to-end creative production services for omnichannel marketing, including product photography, video, and image post-production. It manages large volumes of digital assets and content for consumer brands.

1 investor

Code Maestro is a tool for creating and scaling playable and interactive ads, letting teams build creatives from scratch, iterate quickly, and export network-ready ad variants. It targets user acquisition managers, producers, and game studios, and can also be used for rapid game prototyping.

1 investor

Codeway is a mobile app publisher that builds and scales AI-powered consumer apps, with a portfolio of over 60 apps. The company handles products from concept to launch, using data-driven, performance-focused development and marketing.

1 investor

Collective Audience operates a modular platform that combines advertising, media, data, and AI to create interactive audience experiences, generate audience insights, and activate them across marketing and monetization channels. It serves publishers and advertisers, helping them measure engagement and monetize audience attention across the open internet.

1 investor