Chastenay Corp

Services

Six ways to work together.

• Fractional product and technology leadership (CPTO)

  When the company needs product and technology leadership without a full-time hire.

  What you get: a product and technology roadmap, clear make-or-buy, adapt or partner decisions, and teams and suppliers that are steered.

• Data & AI assessment

  To find where your data and AI create value, and where to start.

  What you get: a maturity assessment, use cases ranked by value and feasibility, a roadmap and an action plan.

• Technical due diligence

  Before an investment, a launch or a reorganisation.

  What you get: a reading of the technology, the product, the organisation and the team, at times the accounts and the ownership, delivered with recommendations.

• Prototype and connected product

  To turn a connected-device idea into a product that works.

  What you get: a prototype tested in real conditions, chosen components and partners, and a path to industrialisation.

• Digital accessibility

  For websites and apps everyone can use, with the French RGAA standard as the reference.

  What you get: blocking issues identified, accessibility built in from design and checked at acceptance.

• Training and masterclasses

  For executives, teams and students.

  What you get: masterclasses, workshops and courses on AI, data and AI ethics, and foresight.

Expertise

• Generative AI and agents
• Data and data governance
• GDPR and the AI Act
• Data and AI ethics
• Architecture and cloud
• Security by design
• Connected devices
• Accessibility (RGAA)
• Make or buy
• ISO 13485 and IEC 62304

Approach

• A holistic approach

  I design end-to-end systems around an expressed or anticipated need: business, market, user, physical product, experience, data, software, infrastructure, operations, partners, economics, regulation and organisation. A perfect brick is worth nothing if the roof or the foundations are weak.

• By design

  Security, privacy, efficiency, resilience and sustainability are decided at design time, not added afterwards. Design is intent, not decoration.

• Every case has its own grid

  You cannot read a company through a single grid; expertise means understanding, then reporting back within a context and its stakes.

• We steer; the language is just the outfit

  Programming languages follow fashions, and coding assistants are changing the game: what matters is steering.

• AI, under human review

  AI speeds up the design loop, but no model is the authority. When a real system has to work, “almost right = 0”: people keep the framing, the validation and the final responsibility.

• Standards: the essentials and their spirit

  A standard is handled like the law. For example, SOUP under IEC 62304: every third-party component is identified, versioned, assessed and monitored.

Background

Jean-Philippe Marie de Chastenay founded Chastenay Corp in 2025.

• Since 2025

  Chastenay Corp · Fractional CPTO · Business, AI & Connected Products

  Fractional product and technology leadership across business, product, applied AI and connected products, from research and prototyping to small-scale deployment, under human validation.

• 2021-2025

  Sounduct · Co-founder · Director of Strategy, R&D & Technology (CTO/CPTO scope)

  MedTech: a patented connected hearing medical device, with one app for patients and one for clinicians. From 18 prototypes to the FDA 510(k) pathway, under ISO 13485. Exit in 2025.

• 2020

  C-O-N-T-A-C-T · CTO & Co-producer

  Immersive theatre played on the audience’s phones, built in about a month during Covid, then performed in 22+ cities and 12 countries.

• 2016-2018

  Chaï Mind the Tea · Co-founder · CPTO

  OCR and text-to-speech to give printed books a voice. Patented product.

• 2015-2026

  C-level advisory · CTO / CPTO

  Advisory and technology and product leadership assignments, run alongside Touaregs, Chaï and Sounduct.

• Since 2014

  Lecturer and Speaker · AI, Ethics and Innovation

  Data and AI ethics, data governance, in business schools and universities, often in English for international cohorts. Foresight masterclasses, including for Caisse des Dépôts and Groupama.

• 2011-2025

  Atelier St-Loup · Co-founder · Product, Digital & E-commerce Strategy

  High-end leather goods: product, brand, premium retail, e-commerce up to 40% of revenue.

• 2000-2023

  Touaregs · Founder · Director of Strategy, Product & Technology (CTO/CPTO scope)

  Digital platforms and projects for Toyota, Nestlé, Shiseido, Chanel and many others: more than 200 initiatives in about 25 countries.

• Media

  SIAL Paris and BFM Business

  SIAL Paris 2016: panel “What will tomorrow’s food be made of?”. BFM Business, Tech & Co, 2024: interview on Sounduct, recorded during VivaTech.

• 2025

  MIT Sloan + IMD · certificate

  “Driving Strategic Innovation: Achieving High Performance Throughout the Value Chain”: one week on campus in Cambridge, Massachusetts, within an international cohort.

• 2025

  MIT Sloan · Transforming Healthcare with AI

  MIT Sloan programme on AI applied to healthcare.

• 2013-2014

  Sciences Po · Executive Master “Trajectoires Dirigeants”

  Executive leadership programme.

• 1997

  Université Paris Dauphine-PSL · MIAGE, Master’s degree

  Computer science and management.

• Commitment

  Observatoire des inégalités

  Board member.

Contact

To discuss a project, an engagement or a talk, please write to me.

Email

jpmdc@chastenay.co

LinkedIn

linkedin.com/in/jpmdc

City

Paris, France