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sitefire

Marketing suite for the agentic web

sitefire (YC W26) helps brands market their products to agents. They create content and tools that get their products discovered and used by AI agents (ChatGPT, OpenClaw). sitefire identifies which content drives AI visibility, and automatically creates it. Unlike GEO tools, sitefire is an AI-native agency that executes on-page and off-page actions and delivers measurable top-line growth.
Active Founders
Jochen Madler
Jochen Madler
Founder
Co-founder & CEO, sitefire.ai. Valedictorian of Germany's no. 1 finance program. Deep RL & optimization at Stanford and PhD at Technical University Munich (TUM).
Vincent Jeltsch
Vincent Jeltsch
Founder
CTO@sitefire.ai, helping you market your brand to AI agents. - software engineering at RobCo - launched one the fastest growing healthcare programs in Germany - studied at CDTM, Germany's #1 study program for founders
Company Launches
sitefire - Marketing suite for the agentic web
See original launch post

Hi! We are Jochen and Vincent, co-founders of sitefire.ai! 🔥

TL;DR: Unlike other GEO tools, sitefire actually tells you how to improve your AI visibility. It recommends actions, and takes them for you. We are already working with Europe’s largest brands such as BMW, Xtrackers, and DWS.

https://www.youtube.com/watch?v=rqUyyeYcoV0

What we are building

Unlike other GEO tools, sitefire actually tells you how to improve your AI visibility. sitefire analyzes AI answers (query fan-out, sourced pages, cited pages) to identify which content works. Based on this, sitefire tells you which third-party sites to reach out to and which UGC content (Youtube, Reddit, etc.) to engage with.

Second, sitefire synthesizes the top-cited web pages and writes brand-aware, AI-optimized blog posts for you - directly delivered to your CMS. You just publish, improve your AI visibility, and start winning leads.

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The Team

Vincent and Jochen met at Technical University of Munich (TUM). Vincent founded his first company at 18, and studied at CDTM (study program producing 20% of German unicorns). Jochen is a valedictorian of Germany’s no. 1 finance program, worked on optimization/deep RL at Stanford and as a PhD Candidate at TUM. We’re excited to bring cutting-edge data science to marketing teams!

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Our Ask

  1. Introductions: Do you know marketing/growth teams at Series A+ companies that need a GEO tool to actually take action? We’d love to hear from you!
  2. Try it 🔥 : 7-day free trial at sitefire.ai. Set up your account in 5min, and get your first AI-optimized content briefing!
  3. Feedback: Tell us what you think about our website, product, UX, etc.
YC Photos
sitefire
Founded:2025
Batch:Winter 2026
Team Size:2
Status:
Active
Primary Partner:Jon Xu