Koah is a San Francisco-based company that delivers a software development kit (SDK) enabling AI assistants, search, and chat applications to insert native, real-time contextual advertisements into user conversations. The system analyzes each query’s intent and surfaces sponsored recommendations and structured data units that align with the user’s decision-making flow, avoiding disruptive banner formats. Over the past year, the platform has processed more than 170 million queries and served 35 million ad impressions for clients such as Liner, Viro, and Sup AI. The company is building LLM-native ad formats and expanding its intent-modeling infrastructure to deepen relevance and conversion performance. Koah also operates a self-serve interface aimed at global AI application developers, positioning itself as the ad monetization layer for generative AI products. With fresh capital, management plans to accelerate R&D, grow its ad inventory, and scale international adoption.

Total raised

$26M

Funding rounds

2

Latest round

Series A

Latest activity

Feb 2026