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Luciano (Lou) Centanni
Luciano (Lou) Centanni
Partner, IBC Director - EMEA
Anthony Bonaguro
Anthony Bonaguro
Partner, IBC Director - Asia Pacific
Joseph Loretto
Joseph Loretto
Partner, IBC Director - Americas
Rimma Tabakh
Rimma Tabakh
Partner, IBC Director - Asia Pacific
Susanne Shalley
Susanne Shalley
Partner, IBC Director - US Tax
Warren Stippich
Warren Stippich
Partner, IBC Director - Advisory
    Grant Thornton LLP is the US member firm of Grant Thornton International Ltd, one of the world’s leading organisations of independent audit, tax and advisory firms. The firm was founded in 1924 as Alexander Grant & Co. In 1980, we joined with other international accounting firms to form Grant Thornton International Ltd. Our people and our services are built around our clients’ locations, service needs and industries. Collaboration and coordination across the geographic, service-line/industry matrix enables us to provide the personalised attention and a high level of client service for which Grant Thornton is known. 
    We unite with all Grant Thornton member firms in ‘living’ our global values: unite through global collaboration, demonstrate leadership in all we do, promote a consistent culture of excellence, act with agility, ensure deep respect for people and take responsibility for our actions. For all member firms, integrity and excellence are consistent, cultural values.

    Seth Siegel

    CEO

    9808
    People
    49
    Offices
    606
    Partners

    Key contacts

    Seth Siegel
    Seth Siegel
    Chief Executive Officer
    David Hazels
    David Hazels
    National managing partner, advisory services
    Janet Malzone
    Janet Malzone
    National managing partner, audit services
    Renato Zanichelli
    Renato Zanichelli
    National managing partner, tax services
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    Global strength

    Grant Thornton is one of the world’s leading organisations of independent assurance, tax and advisory firms. With more than 73,000 Grant Thornton people, across 149 markets, we are focused on making a difference to clients, colleagues and the communities in which we live and work.

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    Why Grant Thornton

    Our clients get more one-on-one time with our partners and faster responses to the critical issues that impact their operation. With more on-the-ground time on site, our partners gain valuable knowledge about our clients’ environment.

    We’re a big organisation. Our clients can expect the resources, skills and experience of a much larger firm, but with the accessibility and attention of a much smaller firm.