Berlin-based startup Peec AI has crossed $10M ARR, more than doubling revenue in six months since its $21M Series A at $4M ARR. The company operates in the emerging generative engine optimisation (GEO) category, providing marketers a dashboard to track and improve brand visibility in AI-generated search results from ChatGPT, Claude, Gemini, and Perplexity. As AI Overviews now appear on ~60% of US search queries, GEO is becoming a critical discipline for brands. Peec competes with HubSpot and Semrush's GEO features but claims a native-GEO advantage. The company recently opened a New York office and used aggressive billboard recruitment tactics in Berlin. Investor Christoph Klink frames Peec's growth as evidence of a narrowing gap between European and US AI startups.