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Bloom
Founders
Bloom is an AI-powered Brand Operating System that deeply understands a business's visual identity and generates on-brand marketing assets, ads, images, and social content in seconds. Founded by Ray Fitzgerald and part of Y Combinator's Spring 2026 batch, Bloom is building toward a full Brand OS encompassing video, audio, campaigns, competitive research, and trend monitoring. The platform went viral at launch in December 2025, amassing 15K signups and millions of impressions with a lean two-person team based in San Francisco.
Company Founded in 2025
Articles about Bloom

Last Accounting launches AI-native firm with agent bookkeepers

Bloomy launches AI tutor for K-12 with mastery-based learning

YC's Last Accounting Company: AI Agents Replace Bookkeepers

YC-Backed Bloomy Launches AI Tutor for K-12 Mastery Learning

Bloom Turns Brand Guidelines into Callable Infrastructure for AI Agents

YC's Bloom Turns Brand into Infrastructure for AI Agents

Bloom Launches Brand Layer for AI Agents Across Platforms

YC's Bloom Launches AI Brand OS, Hits 40K Users in Five Months