LJ Advisory

A different perspective
on decisions that matter

LJ Advisory is not a traditional consulting firm. It is an independent practice built around one conviction: major decisions deserve full attention, not delegation.

Home Who we are

I am Thomas Le Joubioux. I founded LJ Advisory to bring executives, shareholders and investors a sharper perspective on M&A and strategic finance — combining the rigour of an operational CFO with the judgment of an institutional investor.

When you engage LJ Advisory, you work with me. Directly. From the first call to closing.

Over 20 years in corporate finance and investment. Not a linear career — a succession of complex, cross-border mandates, often under pressure.

Engie E&P — Western Europe’s largest brownfield oil development, €1.2Bn. CAPEX reduction -10%, OPEX -30%
Global Equity (Zurich) — investment strategy structuring for institutional clients, biotech/pharma
Petroplus —post-acquisition audit process design, 27 operational missions across 5 countries, $24Bn revenue group
Edgar Brandt Advisory — fairness opinions, pre-IPO
CAIA Charterholder Leadership · Yale Energy & Environment · Harvard Artificial Intelligence · Wharton Machine Learning · Stanford

Tomorrow’s finance will not be an extrapolation of yesterday’s.

I work at the intersection of three forces: strategic finance, energy transition and artificial intelligence. Not to follow a trend — because that is where the most consequential decisions of the next decade will be made.

I embed advanced analytics and machine learning into mandates where they genuinely add value: credit risk modelling, sector valuation, weak signal detection in financial data.

Strategic clarityTurning complexity into actionable decisions.
Controlled executionFrom modelling to negotiation.
Full independenceNo conflicts of interest, no institutional affiliation.
Targeted networkLegal, sectoral and technical experts mobilised as needed.

Finance demands a particular form of resilience — one that cannot be learned from textbooks.

As an alpinist and former rugby player (Swiss Champion), I have learned that decisions under pressure are made better when you have already managed uncertainty in extreme environments. This is not a biographical detail. It is a way of approaching difficult mandates.

I deliberately limit the number of mandates I take on. Excellence requires full engagement — it cannot be divided.

My clients do not pay for a report. They pay for judgment, analytical depth and reliable execution.

Do you have a major strategic project?
Let’s talk. No commitment.

Get in touch
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