Coach

COACH, a Y Combinator S26 startup founded by Mathieu Perez, Thomas Perez, and Nicolas Sebag, launches a mobile AI coaching platform that records in-person sales meetings and gives reps personalized feedback. The company says it is live with the top five in-person sales companies in France, where it has increased conversion rates by an average of 32 percent. COACH is expanding in the US, where its first customers are switching from virtual ride-along platforms.

Sep 2026The AI SiftNews article

COACH (YC S26), a Y Combinator S26 startup, launched an AI coaching platform that records every in-person sales meeting and gives each rep personalized feedback and a path to the next close. The company is already live with the top five in-person sales companies in France and has lifted conversion rates by 32 percent on average. Founders Mathieu Perez, Thomas Perez, and Nicolas Sebag started their first company at 18, hired 44 field reps and made 3.5 million euros in 14 months.

Sep 2026The AI SIFT CompanyExternal social post

Jon Xu, YC partner, congratulated the COACH launch: AI for sales has been built for email, calls and Zoom, not for field reps closing deals face-to-face. COACH gives every field rep a sales coach in their pocket; thousands of reps already run on it, live with the top 5 in-person sales companies in France, lifting conversion rates by 32% on average.

Sep 2026Jon XuExternal social post

Y Combinator's launch roundup features six startups, including Hoplite, which helps users deploy cloud software factories. Surface Labs builds intelligent forms for B2B lead capture and conversion, while COACH provides AI coaching for in-person sales reps and Kebra makes field service companies AI-native. Greypoint Industries is manufacturing for autonomous swarm warfare, and Stoa offers pricing and trading infrastructure, including a real-time GPU marketplace with vetted dealers.

Sep 2026Menlo TimesNews article