WACC Expert aims at offering an immediate, documented, scientific estimation of the risk that companies face.
Our goal is to become the online world-reference for the cost-of-capital calculation.


The idea behind WACC Expert came from an observation: very few companies actually implement the comprehensive and complex process that could give them a fair estimation of their weighted-average cost-of-capital. Corporations do not engage themselves in this process for a variety of reasons:


WACC Expert is a service offered by Finance 3.1, the French expert of financial modelling. WACC Expert is centered on a scientific committee, headed by Philippe Chazalon and Arnaud Maréchal.

WACC Expert’s scientific committee is assisted by two operations managers, François Bard and Alexis Joulié.

Philippe Chazalon

Philippe has worked in financial modelling for more than 10 years. in 2009, he co-founded Finance 3.1, the French expert of financial modelling.

As a partner at Finance 3.1, he has designed over 100 analytical and valuation tools that were implemented in Tier 1 French companies.

Philippe also teaches Financial Modelling at HEC Paris, one of Europe’s top business schools.

Philippe previously worked in corporate finance at Accuracy, where he conducted many valuation missions.

Philippe graduated from HEC Paris.

Arnaud Maréchal

Initiator and co-founder of WACC Expert, Arnaud has a long experience of corporate finance in the Telecom Industry.

Currently Vice-President Business Modeling & Valuation at Orange, one of Europe’s Telecom leaders, Arnaud has the responsibility to value the Group’s assets. In this position, he has developed a renowned expertise in risk analysis.

Arnaud teaches Corporate Finance at Telecom ParisTech, a leading Engineering School in france.

Arnaud owns a Master of Business Administration from HEC Paris and Master of Science from Telecom ParisTech. He has also completed a Master’s degree in mathematics from Orleans University.

François Bard

François is in charge of developing and maintaining the WACC Expert online platform.

He lived in Japan and Taiwan for a few years before working for a financial software editor in France.

François graduated from Centrale Paris, one of France’s top engineering schools.

Alexis joulié

Alexis Joulié is in charge of managing and defining the daily operations and processes at WACC Expert. He also participates in and coordinates the activities of the scientific committee.

He previously worked as an analyst in a Private Equity firm owned by the Edmond de Rothschild Group.

Alexis graduated from HEC Paris and earned distinction on the President’s List.