US AdTech Startup Watch

Meta's AI-driven buying is moving campaign control from manual tweaks to platform automation, forcing paid social teams to prioritize upstream...

Two developments highlight accelerating agentic ad buying across channels:

• iHeartMedia and Butler/Till ran the first agentic streaming audio...

ChatGPT Ads now supports three-platform targeting (iOS App, Android App, Web) at the campaign level, marking incremental maturity for the self-serve...

• First agentic streaming audio campaign by Butler/Till and iHeartMedia delivered 42% efficiency gains and 48% premium mid-roll podcast placements...

Ads targeting AI agents lack any standard attribution, as agents retrieve and fold sponsored info into responses without clicks or direct visibility....

ChatGPT ads now deliver standard mobile attribution through AppsFlyer, enabling brands to track installs, in-app purchases, and subscriptions. This...

Eulerity, a marketing automation platform enabling multi-location brands to manage digital ad campaigns across search, social, display, and video,...

Omneky's integration of ChatGPT advertising directly responds to OpenAI's May 2026 self-serve Ads Manager by folding the new channel into one workflow...

Adtucon runs an AI-powered whitelisted ad platform for campaign automation across Meta, Google, TikTok, X and Native, with agentic AI media-buying...

AI-driven self-serve platforms will handle over 80% of US ad spend by 2028, giving startups building automation tools a major opening while making independent measurement essential for differentiation and avoiding platform dependency.

Agentic AI promises media-buying efficiency but adds new friction that supply-path optimization must address for transparency and advertiser trust....

• Big Tech dominance grows: Amazon, Google, and Meta captured 56% of U.S. ad spend last year and are projected to reach 58% this year, shrinking...

Brooks Running used Adora’s AI platform to generate 1,500+ on-brand ad variations across 40 products, delivering a 107% ROAS lift and $1.8M...

Luma and Dumbstruck's partnership defines Creative Intelligence as a new ad category that merges emotion analytics with AI-driven video editing to...

Retail media networks are forecast to hit $109.4 billion by 2033 at 18.9% CAGR, with Amazon, Walmart Connect, and Target Roundel controlling North...

The Smartly acquisition of INCRMNTAL integrates real-time causal measurement directly into creative and media optimization platforms.

For US adtech...

Clinch's new Yahoo DSP creative trafficking API automates synchronization of campaigns and line items while enabling real-time audience-driven...

• Core function: AI platform turns product URLs into statics and UGC-style video ads in ~60 seconds
• Reach: Already serves 12,000+ brands and...

AI agents are reshaping advertising in two directions at once. Agent Ads let brands pay for machine-readable blocks on sites like TIME to influence...

Even strong revenue gains failed to impress investors, as AppLovin dropped 20% after 53% growth and The Trade Desk fell 22% on just 3% growth. With...