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Paris | Lyon | Nantes | Marseille

Sia Partners is an industry leader in France. Working from our global headquarters in Paris and offices in Lyon, Nantes and Marseille, we serve clients in both the public and private sectors, including mid-sized companies and nearly all of the CAC 40. We are members of a number of think tanks and trade associations, including Syntec Consulting (of which our CEO, Matthieu Courtecuisse, is president), Institut de l’Entreprise, and Institut Montaigne. Our contribution to public debates, strong media presence, and extensive expertise have made us an opinion leader. 

Currently located off the Champs-Elysées, our Paris office has maintained strong growth since its creation in 1999. Paris is a hub for Consulting by Design, Sia Partners’ concept that combines design and creativity to reshape client projects for next-level impact. This includes FOVE, our creative agency, and nod-A, our Design Thinking center and the home of Makestorming. 

As the birthplace of Consulting 4.0, our Paris office also houses an AI Center of Excellence and Studio, Sia Partners’ investment arm with a diverse portfolio of startups. 

Our Lyon office was opened in 2012 to foster a closer relationship with the local market in France’s second largest economic region. With over 40 consultants and more than 35 clients (92% of whom are recurring), the Lyon branch has seen a 35% growth over the last three years. Industries served include Energy and Utilities, Insurance, Banking, Public Transport, Manufacturing, and the Public and Health Sectors. Our Lyon office regularly hosts client events across these industries. 

In 2021, Sia Partners continues its growth and opened two new offices - in Nantes and Marseille. 

The Nantes office, which already counts more than 10 consultants and whose objective is to double its staff by 2022, will address industrie such as the Financial Services, Transportation, Retail, Agribusiness and Tech sectors. 

In parallel, the Marseille office, which aims to reach 20 consultants within two years, will mainly address clients in the Industry, Banking, Environment and Energy sectors.

Sia Partners France has been named one of Glassdoor’s Best Places to Work and has been awarded Choose My Company’s Happy Trainees distinctions several years in a row. Keen to join? We recruit throughout the year; check out our careers page for current openings!


21 rue de Berri

T: +33 1 42 77 76 17
F: +33 1 42 77 76 16


3 Rue du Président Carnot

T: +33 1 42 77 76 17
F: +33 1 42 77 76 16


4 rue Voltaire

T:  +33 1 80 05 96 96


1 Place de l'Hôtel des Postes



Tel: +33 7 62 55 83 57

Contact our France Office