On 15 November 2023, international audit, tax and advisory firm Mazars and FORVIS, ranked among the largest public accounting firms in the United States (US), jointly announced they would create a new top 10 global network1, effective 1 June 2024. The new network will position both firms for continued global growth by expanding their capabilities to serve clients, especially those with international needs.

Image supplied by Pexels | Savvas-stavrinos

Image supplied by Pexels | Savvas-stavrinos

The network will operate under a single brand worldwide, Forvis Mazars. With approximately EUR4.7-billion (USD5-billion) in revenue2 Forvis Mazars will be a new entrant in the top 10 global network rankings. Uniquely formed with just two members, the network is designed to be agile, deliver consistency and have the global scale to meet clients’ needs. Both network members will remain owned by their current respective partnerships. Effective 1 June 2024, Mazars USA will join Forvis Mazars in the US.

“I am delighted that Mazars and FORVIS have taken this transformational step and am excited about the opportunities it presents for both firms in serving our clients and supporting our people,” said Hervé Hélias, chair of the executive board, Mazars Group. “We are proud to bring a pioneering new network model to our industry and are excited to continue this journey together. At Mazars, we are committed to helping our clients confidently build and grow their businesses, and forming this two-firm network with FORVIS complements our existing international integrated partnership and significantly advances the Mazars international strategy. We are pleased to offer our clients the strength of our international integrated partnership in 100 countries and the benefits of the FORVIS large national partnership in the US, which truly works as one firm across the US. It gives us the scale and expanded presence that we have been striving for in the US and marks us as a top 10 global network with extensive scale and coverage.”

FORVIS CEO, Tom Watson, said “A two-firm network, operating under a single global brand, quickly advances our firms’ shared strategies. Our organisations know each other well, with a strong history of collaboration and very similar cultures of putting our people and clients first.

FORVIS has always been passionately committed to providing an Unmatched Client Experience® and unlocking the potential of both our clients and our people, and this opportunity allows us to do so on a strengthened global platform.”

Source: Mazars and FORVIS, edited by Sharyn Macnamara


  1. IAB World Network rankings, based on most recent rankings
  2. 2023 revenues: FORVIS EUR1.6-billion (USD1.7-billion), Mazars expected EUR2.8-billion (USD3-billion).
About Mazars: The firm is an internationally integrated partnership, specialising in audit, accountancy, advisory, tax and legal services*. It operates in over 100 countries and territories around the world, drawing on the expertise of over 30 000 professionals in the Mazars integrated partnership to assist clients of all sizes at every stage in their development. Visit mazars.com to learn more.

*Where permitted under applicable country laws.


About FORVIS, LLP: The professional services firm’s 6 000 team members provide assurance, tax and consulting services for clients in all 50 states in the United States and internationally. Visit forvis.com to learn more.