Forvis Mazars is an internationally integrated partnership, specialising in audit, accounting and consulting employing more than 40,000 professionals in over 100 countries.

Combined, the network constitutes one of the world's ten largest accounting firms by revenue with earnings of over $5 billion, making it the most significant new entrant to the global rankings in decades.

[2] Forvis Mazars Group operates as a single integrated partnership and publishes its consolidated financial accounts, a move it states is unusual for private audit and advisory firms.

In 2017, Mazars acquires Zettafox, a French prescriptive data analytics startup, and announces the creation of its Lab to accelerate the internal transformation of its businesses and enrich its offerings.

[citation needed] Mazars Brazil has more than 800 professionals across 7 offices in the cities of São Paulo, Sorocaba, Barueri, Campinas, Ribeirão Preto, Rio de Janeiro and Curitiba, providing services to small, medium and large businesses.

[17] In April 2015, Mazars and RBS RoeverBroennerSusat announced their merger which united about 1,000 professionals, including 68 partners and €110 million of turnover in the German market.

On 1 September 2008, the Kuala Lumpur office of Moores Rowland merged with the global integrated structure of Mazars.

To implement the merger, a new firm, Mazars (AF 001954), was registered to assume all existing mandates and statutory audit appointments of the Kuala Lumpur office of Moores Rowland.

[20] Mazars has been operating in Poland since 1992, currently employs over 300 specialists in Warsaw and Krakow and serves more than 800 Polish and international companies of various sizes.

[22] Mazars Ahmed Tawfik & Co. CPA[22] specializes in audit, accounting, tax and advisory services and has 30 professionals in its office.

[citation needed] Mazars has been present in Russia since 1995 and is an international player in the Russian market of audit and consulting services.

[citation needed] Mazars & Guerard had a London office during the 1990s providing audit services to the UK components of AXA, Banque Nationale de Paris and Pernod Ricard.

[31] In April 2007, Mazars merged with the London office of MRI Moores Rowland which created a firm with turnover in the UK exceeding £90million.

The managing partner of Mazars in Vietnam is Jean-Marc Deschamps,[36] based in Ho Chi Minh City.

[38] On 25 February 2021, the House Oversight Committee in the 117th Congress, reissued the subpoena to Mazars USA for the same documents it had previously sought.