We're building Basement.
Sublevel is the company behind Basement, the AI-native browser turning every webpage into a place. A live social layer, an AI teammate that reads along, and a reputation that follows you across the web.
Basement
iOS · ChromeEvery page is a place. Highlight anything, talk to people reading the same thing, and meet the agent that's already been there. Any webpage gets a live room, community notes, and an AI teammate that reads along.
What we built to ship Basement.
Two people shipping a mobile browser, a web extension, an agent engine, and real-time browser automation requires leverage. We built the leverage ourselves. Each of these started as a tool we needed to move faster on Basement.
Baselings
The agent engine that powers Basement. Autonomous workflows, browser automation, persistent memory.
Basestream
Internal intelligence layer. Tracks what we ship and what's getting built across our stack.
Claudy
Agentic coding tooling we use ourselves to move fast on Basement. Two people, one monorepo.
Two founders. One bet: Basement.
Sublevel is fully remote between Miami and Chicago. Five platforms, 35+ API controllers, 29 agent tools, all written by the two of us. Everything we ship goes into one product: Basement.
Luis Perrone
Co-founder, CEO · ChicagoTechnical architect. Owns product vision, the iOS app, the API, and the agent engine. Previously at Helium Mobile and UKG.
Agnel Nieves
Co-founder, COO · MiamiDesign and growth. Owns the brand, the extensions, and everything outward-facing. Previously at Helium Mobile, Venice.ai, and UKG.