Capture once. Use anywhere. We build memory infrastructure for AI-native work — operator-led, production-first, and focused on context that compounds instead of leaking across tools.
We borrow the dictionary quietly: rumble v. to make a continuous deep, resonant sound — continuity over theatre.
Capture once
Institutional context held durably — across conversations, handoffs, and tools.
One platform
Shared memory, retrieval, and workflow rails — multiple applications, one substrate.
Ship with evidence
Discovery through production — tested, bounded, and handoff your team can run.
Rumble Built, Inc. builds memory and workflow infrastructure for teams that ship under real operational load. Our applications — including CapturedIt, HuniDu, and Bread & Butter — validate shared capture, retrieval, and orchestration on one platform. We also help customers and partners deploy on the same rails through subscriptions, platform and API access, workflow deployment, and managed operations.
We work end to end, from design to production — not slide decks. That means discovery and UX through implementation, testing, deployment, and handoff your team can run with.
Wondering how our written scope and invoices line up in practice? See the plain-language tables on How we bill (not a substitute for a signed agreement).
James Ross is CEO and Founder of Rumble Built, Inc. Rumble Built did not start as a demo shop — he started as an operator, building and running systems inside complex organizations where execution breaks quietly: handoffs, memory loss, and coordination debt. CapturedIt began as dogfood for the same scatter problem the company exists to solve.
That background spans life sciences and regulated operations (including leadership at Moderna and Dash Bio), enterprise platform scale across 200+ applications and dozens of teams, and fintech-adjacent work where institutional context disappears when systems do not carry memory forward.
AI compressed iteration cycles; the harder problem is operationalizing intelligence without fragmenting context. That is what we build for — infrastructure for people who ship under load, not experiments that never leave the lab. More long-form thinking lives in Field Notes.
Startups building toward product-market fit, growth-stage companies modernizing systems, and established organizations that need senior execution without hiring a full bench — especially when context loss across tools and teams is slowing delivery. We’re comfortable alongside your in-house engineers or as the team that owns a vertical slice.
Evidence
Measure what matters before and after release; keep humans in the loop when stakes are high.
Rollouts
Staged delivery with visible milestones and room to correct course.
Tool fit
AI and vendors chosen for fit, cost, and operability — with guardrails and rollback paths.
Handoff
Repos, docs, and runbooks aligned to how your team actually runs production.
Tools and models earn their place on fit, cost, and operability — not hype. When you want the full picture in prose, browse Products we ship on shared infrastructure, see the studio pipeline (internal codenames until launch), or read Services for how to deploy on our rails.
Ready to talk through a product, platform deployment, or something you’re not sure how to scope?
Start here