sitefire
sitefire is a YC Winter 2026 (W26) company. Based in San Francisco, CA, USA. Team of 2.
About sitefire
Summary
sitefire builds a marketing suite that helps B2B brands get discovered and used by AI agents such as ChatGPT, Perplexity, and Gemini. It monitors how AI models mention a brand, identifies which content drives AI visibility, and then executes both on-page and off-page actions, including researching, writing, and publishing content directly to a brand's CMS. The product replaces the manual work of tracking AI search presence and producing the content needed to influence it.
Business model
A free visibility report entry point plus paid plans, with a self-serve start and a demo booking option for teams.
Go-to-market
Marketing teams at B2B companies are the primary buyers; they can start self-serve with a free brand visibility check or book a demo, making acquisition both product-led and sales-assisted.
From the Y Combinator listing
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.
Facts
- B2B / B2B -> Marketing
- San Francisco, CA, USA
- 2
- Active
- Early
Founders (2)
- Vincent Jeltsch
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