Venture studio
We build AI ventures that stay accountable.
Governed, auditable software, built fast on shared infrastructure. The companies we own, and a select few we build for partners.
What Nextars is
An AI-first venture studio.
Nextars is the studio where Andrés Ramírez Sierra builds an AI-first portfolio. One conviction runs through every layer.
- Intelligence that stays accountable
- Data that stays yours
- Processes that keep a human in charge
We build where it is hardest, in regulated industries, because what survives there works anywhere.
The engine
Why we build fast, and governed.
We build faster than a team our size should, and we keep every decision on the record. Three things make that possible.
Reusable infrastructure
Shared building blocks (RootBlocks) so every venture is configuration, not reinvention. The next company starts where the last one finished.
A fleet of AI agents
Agents working in parallel, governed by the method, never running loose.
Build once, reuse everywhere. That is the difference between a studio and a fund: our cost to launch the next venture keeps falling, and the governance comes with it.
What one decision on the record looks like
Centralize secrets in one vault, never in a repo
- Context
- Six ventures ship in parallel and each needs credentials, without ever committing one to a repository.
- Decision
- One secrets manager on the private network, with rotation. Every service reads its secrets at deploy time, nothing is stored in code.
- Consequence
- A leaked repository leaks nothing. Rotating a key is one action across the whole fleet, and every access is logged.
Portfolio
What we've built
The proof is the portfolio. Real ventures, each the same conviction in a different layer, built where it is hardest.
Intelligence
Data
Datta
People own their verified context. The leverage that keeps humans valuable in an AGI world.
VisitProcesses
Resolvi
In developmentCustomer service with structured context. 360 degrees, never a black box.
ApiFusion
In developmentOne API to dozens of providers.
For partners
Build with us
We put governed AI into production for a small number of companies each year. One workflow, live in weeks, every decision auditable. We build it on the same infrastructure that runs our own ventures, then keep it governed as models and regulations change.
How it works
- 01We ship one high-value workflow into production in 2 to 4 weeks, fully auditable.
- 02We keep it governed: monitored, audited, and improved as models and rules change.
- 03We take a handful of partners a year. This is not an agency.
Founder
Nextars was founded by Andrés Ramírez Sierra.
Founder, systems architect, and creator of SliceOps. The thesis, the story, and the person behind the studio live on his site.
Read Andrés's storyStart a conversation.
Tell us what you're building, or where governed AI would change how you operate.