After graduating from Kedge Business School in Bordeaux, France, and from Reading University in the UK with a Master's degree in Economics and International Business, Valérie Agathon started off her career outside of her native France, first in Germany, then in Sweden. She then joined Dassault Systèmes as Head of Marketing Projects, then Head of Investor Relations, before moving up to Director of Investor Relations.

She joined the Bouygues Group in 2009 as Director of Investor Relations, then Director of Strategy and Development.

In 2019, she moved over to Colas as CFO of the Materials and Bitumen business units, before becoming, in 2021, Deputy Director of the Materials business unit and CFO of the Bitumen business unit.

In February 2023, Valérie Agathon was appointed Vice President, Administration, Finance and Strategy of the Colas Group. She reports directly to the Chairman and CEO.
 

After graduating with a degree in Engineering from Ensam, Thierry Méline began his career in the Colas Group in 1990 as a Construction Engineer at Screg Sud-Est (now Colas Midi-Méditerranée). He moved on to become Assistant Head of Operations in the same subsidiary’s Toulon branch office in 1994, followed by a position as Profit Center Supervisor in Saint-Etienne in 1997, Avignon in 2000, and then Isère / Drôme / Ardèche in 2001.

In 2005, he was called on to be Profit Center Manager at Colas Midi-Méditerranée’s Côte d’Azur branch, before taking over as Chairman and Chief Executive Officer of the subsidiary in 2010.  

As of January 2015, Thierry Méline was appointed Deputy Managing Director at Colas’ Roads France General Management division. He was appointed Executive Vice President, France in September 2015. In May 2019, his scope was expanded to include the Indian Ocean.

After graduating from Ecole des Mines de Nancy, IFP School, and from SDA Bocconi School of Management in Italy, Christophe Mansuy began his career in 1989 at IFP (Institut Français du Pétrole, now Axens) as a process and commissioning engineer for international industrial plants, then moved on to become Sales and Marketing Manager for the Far East.

After a period with SCOR, he joined Bouygues Offshore (now Saipem France) in 2000 and held general management positions in several countries before being appointed Corporate Vice President in 2011. In 2016, Christophe Mansuy joined SPAC, a subsidiary of Colas, as the Director of the Energy Transport business unit, and was then appointed CEO of the company.

In January 2020, he has been Managing Director - International at Colas Rail.

In July 2023, Christophe Mansuy has been appointed Group Vice President, Human Resources of the Colas Group.

A graduate of the École Nationale Supérieure des Arts et Industries (ENSAIS), Francis GRASS joined Colas in 1993 as a trainee at Colas Martinique before becoming Site Manager (1994) then Works Supervisor (1996) at Colas Gabon.

In 1999, he joined the Ribal Group (French Guiana) as Works Engineer before being promoted to Manager in 2000. Seven years later, Francis GRASS was Development Manager in the Central Europe Division of Colas, then Construction Manager and Deputy Project Manager for the construction of the M6-M60 freeway in Hungary.

In 2010, he was appointed Regional Manager of Colas in the Czech Republic and Slovakia, before becoming CEO of Colas Centre-Ouest (2012).

In 2017, he was appointed CEO of Colas Rail and then became Executive Vice President (Europe, Middle East, Africa), Water & Energy Transport in 2020.