Paris · Data & AI Studio · Est. 2021
Built by engineers.|
Run like a studio.
A Paris-based AI & Data studio. With the speed of a studio and the rigor of a consulting firm, we help companies design, build, and operationalize modern data platforms and agentic AI systems.
伝説
Den · se · tsu — Legend
2021
Founded
Paris
Base
10+
Years exp.
Ambition
Services
We work across two practices and one in-house product line.
Data
Design and deliver the data foundations companies need to operate reliably.
We build modern data platforms from scratch, lead data migration and architecture modernization, develop and industrialize pipelines, and bring clarity to data flows, tooling, and operating models.
data platform migration pipelines architecture
AI
Build agentic AI systems tailored to real business workflows.
We design grounded agentic solutions, build company brain systems, and run an expert-to-harness process: we interview domain experts, capture how work is really done, and translate that knowledge into controlled AI-agent workflows.
agentic systems company brain workflows governance
Products
In-house tools for enterprise AI operations.
Alongside client work, we build tools shaped by real operational needs. DAER — our Distributed Agent Execution Runtime — gives IT and digital leadership teams control over how models, tools, and agentic workflows are used across the organization.
DAER AI governance enterprise runtime
Products
We build tools shaped by the same operational problems we solve daily. Same principle, same rigor — productised for broader reach.
In-house product
DAER
Distributed Agent Execution Runtime
A governance and execution layer for enterprise AI operations. DAER gives IT and digital leadership teams control over how models, tools, and agentic workflows are used across the organization.
Model usage governance
Token and cost budgeting per group
Skills and tools management
Security and policy enforcement
Controlled runtime environments for employees
Alpha 2 clients enrolled
Request access →
Admin · Governance — group budgets, license & policy management
DAER Admin interface showing governance controls, group budgets and license management
Workstation · Employee interface — policy-gated AI assistant
DAER Workstation interface showing the AI assistant with policy controls
How we work
We don’t ship demos. Every engagement follows the same process: understand the real problem, build the right system, then make sure it actually runs in your organization.
01
Understand the field
We work with business and technical experts to map constraints, workflows, and decision points. Honest assessment of what you need and whether we are the right fit.
→ No deck required
02
Build the right system
We design the data pipelines, agentic logic, skills, and tooling needed for the use case. Deliverables and timeline defined in writing before anything moves.
→ Fixed scope
03
Operationalize with control
We focus on reliability, governance, cost awareness, and adoption so the system can live inside the company — not just in a demo.
→ Senior-led
04
Full ownership
You own everything we build. Code, documentation, architecture decisions. Your team can maintain, extend, or hand it to someone else without us.
→ No lock-in
Portfolio
The studio is built on a decade of hands-on delivery inside major French enterprises. We know what production-grade systems look like because we have built them, at scale, from the inside.
Founding team’s track record
Before Densetsu
10+ years embedded in the data infrastructure of major French enterprises.
EDF Thales Suez Allianz Pernod Ricard Transavia
Energy Defence Insurance Aviation Luxury & Spirits
Densetsu studio engagements
The studio at work
Full-stack data and AI delivery with the crew.
Harcour
Retail SME Data platform AI automation
First of many
Harcour is Densetsu's first full studio engagement. More to follow.
Writing
Technical thinking, made readable.
Architecture breakdowns, design decisions, and use cases from building real systems.
Technical Architecture Use case
Browse articles →
Let's work together
You have a data
or AI problem.
Let's talk.

If the problem is real and the timeline is honest, the conversation is worth having.

Email
karen@densetsu.ai
Location
Paris, France · remote-first
Response time
< 24h · always
Book a discovery call →