From AI Ambition to Real-World Results
Artificial intelligence is on every executive team's agenda. But between intention and operational results, there is often a significant gap: POCs that stall, budgets committed to projects that never reach production, teams that leave workshops energised only to feel lost when it comes to actual deployment.
Well&Wiz AI was built precisely around this observation — and a founding conviction: the machine accelerates, the human decides.
As the AI consulting arm of the Trevys Group, Well&Wiz helps organisations integrate artificial intelligence in concrete, high-value ways. No lofty technology narratives: qualified use cases, fast proof of value, and teams capable of maintaining what has been delivered.
A Network of 300+ Experts, Available Within 72 Hours
Well&Wiz does not operate like a traditional consulting firm. For each engagement, its partners draw on a network of more than 300 independent AI specialists, mobilisable within 72 hours depending on the context and expertise required.
The areas covered are broad:
- LLM & Generative AI — GPT, Claude, Mistral, RAG, fine-tuning, structured prompting
- AI Agents & Automation — multi-agent orchestration, autonomous workflows, augmented RPA
- Machine Learning & Predictive AI — scoring, churn, demand forecasting, risk models
- NLP & Natural Language Processing — semantic analysis, classification, entity extraction
- Computer Vision & Industrial AI — detection, OCR, automated quality control
- Data Science & Data Engineering — pipelines, feature stores, analytical modelling
- MLOps & Industrialisation — ML CI/CD, drift monitoring, scalable deployment
- AI Strategy & Change Management — ROI framing, change management, business-side training
The ability to rapidly assemble multidisciplinary teams is one of the model's defining strengths: the expertise adapts to the project, not the other way around.
The Approach: Prove It Fast, Decide Early
Well&Wiz has structured its methodology around a straightforward conviction — avoid funding projects that prove nothing for too long.
The approach rests on three pillars:
- WAI Score™ — a proprietary assessment tool to evaluate a use case before committing resources. Data availability, real-world complexity, expected ROI: every case is scored against objective criteria.
- Proof Loop™ — turning intent into proof of value. A first functional deliverable is produced in under ten days, using the client's own data or a representative sample. Usage measurement begins from day seven.
- Go / Adjust / Stop Decision — at the end of each sprint, a structured decision is made: move forward, adjust course, or draw a clean line. That last option matters just as much as the other two.
This iterative logic avoids the classic pitfall: the POC that spins its wheels for six months before anyone admits it will never reach production.
Use Cases Across Every Function, Starting at the Top
Well&Wiz maintains a library of more than 50 documented use cases, spanning every business function: Executive Leadership, Finance, HR, Procurement, Supply Chain, Customer Service, IT, and Operations.
A few concrete examples:
Executive Leadership — Building an AI Roadmap A 12,000-employee industrial group receives around ten AI use case proposals from its business divisions, with no prioritisation framework or allocated budget. Well&Wiz scopes an 18-month roadmap: six use cases scored and prioritised, sequenced across three waves, with a defined governance structure. The first wave launches eight weeks after scoping.
Executive Leadership — Challenging an Existing Roadmap A financial services group has already developed an in-house roadmap covering 14 use cases. Upon audit: four cases rely on data that won't be accessible for at least six months, and two duplicate capabilities already covered by existing tools. The portfolio is reduced to eight genuinely fundable cases — and the client avoids committing budget to projects doomed to fail.
These examples illustrate the value of an external perspective and a structured methodology — particularly, and perhaps especially, when an organisation has already started working on the topic.
The Founding Principle: AI Under Human Supervision
Underpinning the Well&Wiz offering is a conviction its partners articulate clearly: as the raw capability of AI models becomes a commodity available to all, human judgement becomes more valuable, not less.
The machine explores, synthesises, and recommends. The human makes the call and owns the consequences. This division of roles is not an ethical precaution — it is an economic reality and an operational necessity. Everything Well&Wiz delivers is supervised, and supervisable, by design.
Three non-negotiable principles guide every engagement:
- Human oversight is not optional.
- Accountability cannot be delegated to a model.
- Decision-making authority stays where the value is.
Key Figures
- 300+ independent experts available for deployment
- Under 10 days of development per use case
- 3,000+ active business users
- 100% of POCs in service — no delivered project left without follow-through
A Leadership Team Grounded in Practice
Well&Wiz is led by four partners who collectively bring decades of experience in consulting, organisational transformation, finance, data, and technology solution development.
Jérémy Roch — Managing Partner, Strategy, Transformation & AI. A former strategy and management consultant, he drives the development of innovative AI-integrated solutions.
Walther Oettgen — Managing Partner, Innovation, Data & AI Solutions. Holding a doctorate and an entrepreneurial background, he brings over thirty years of experience in data analysis and methodology design.
John Levy — Managing Partner, Finance, Data & Automation. A chartered accountant and elected member of the Regional Council of the French Institute of Chartered Accountants, he supports CFOs and finance teams through transformation and automation challenges.
Julien Krywyk — Managing Partner & CTO, Architecture, Cloud & AI. A data science engineer, he leads the design and development of the firm's technology platforms.
How to Get Started
Well&Wiz offers an initial 30-minute conversation to jointly assess whether a Fast Track scoping engagement makes sense — with no commitment required. If you have an AI use case under consideration, or a POC that has been stalling for too long, that is the natural starting point.
Learn more about Well&Wiz AI and the full Trevys Group ecosystem on the Our Ecosystem page.