Our roots

Mazars bears the name of its original founder, Robert Mazars, who started its practice near Rouen, in Western France, in 1940. The firm quickly grew to establish itself as a highly reputable practice, rapidly acquiring new clients and becoming well-known for its focus on technical excellence and quality of service.

Where we come from

From its humble beginning to the international Group that it is today, Mazars has always remained true to its founder’s spirit and values of deep ethical commitmentresponsibility and belief that technical excellence is the key to success.
It is based upon these values that the generations which inherited Mazars managed to grow the organisation, through the co-optation of new partners, in Europe and around the world, and through mergers with firms that share the same values, vision, and objectives. 
That well known national firms like Weiser in the USA, Neville Russell in the UK or Paardekooper Hoffman in The Netherlands, elected to join the partnership is proof that the Mazars way has indeed been an attractive and effective model. 
Now operating in 72  countries across the globe, with over 13,800  professionals, Mazars has become a fully-fledged global player.

Key milestones in our history

  • 1940: Robert Mazars starts its accountancy practice near Rouen, France.
  • 1965: The "Cabinet Robert Mazars" limited liability company is created on January 1.
  • 1973: The company moves its audit team to Paris.
  • 1975: Mazars opens its first offices outside of France, in Germany and Spain.
  • 1983: Robert Mazars chooses to resign. Patrick de Cambourg becomes Chairman of Mazars.
  • 1995: Mazars merges with Guérard Viala. The merger also marks the creation of the Mazars CARL partnership, which gives the partners in each of the two firms the chance to be fully associated as equals in the development of the new organisation.
  • 1998: Mazars merges with Neville Russell, one of Britain’s leading independent firms.
  • 1999: Mazars & Guérard choose the brandname “Mazars”.
  • 2000: Mazars merges with Paardekooper Hoffman in The Netherlands. With offices in most European countries, Mazars truly becomes an international organisation. Outside of Europe, Mazars is already present in Latin America - Brazil -, China and in a several African countries. The organisation also operates in many other countries, through correspondence agreements.
  • 2003-2007: Mazars speeds up its international development, with new offices in Eastern Europe (including Russia), China, India and the Asia-Pacific area, Latin America - Mexico, Brazil, Argentina, Venezuela, Chile,...-, Southern Africa and the Middle East.
  • 2007: Mazars becomes one of the founding members of the Praxity Alliance bringing together over 100 independent firms in 75 countries.
  • 2013: Mazars has offices in 72  countries and can operate in another 14 , through agreements and representative offices. 
  • 2017: Mazars has offices in 79 countries and more than 18,000 employees. Mazars in Brazil has 5 offices and more than 800 employees.
  • 2018: Mazars has offices in 86 countries and more than 20,000 employees. Mazars in Brazil has 6 offices and more than 800 employees.


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