Silicon Valley Tax Directors Group

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Hayden Marshall


Hayden Marshall

B.A., The University of Melbourne, Australia; B.Comm., Deakin University, Australia; C.A. (Chartered Accountant), Australia

Director, Tax

Arista Networks

5453 Great America Parkway

Santa Clara, California 95054


408.547.5720 PHONE

Professional Organizations

Silicon Valley Chapter of the Tax Executive Institute; Chartered Accountants Australia and New Zealand


Hayden started his career in 2004 as a Chartered Accountant at PwC in Melbourne, Australia, before moving into Industry. He joined the Symantec tax team in 2009 following an acquisition and then joined the Arista tax team in 2018. Current role at Arista Networks is the head of global tax, leading all direct and indirect corporate tax matters.

Company Profile

Arista Networks is an industry leader in software driven cognitive cloud networking solutions for large-scale data center and campus workspace environments. Arista’s award-winning platforms deliver availability, agility, automation analytics, and security through an advanced network operating system.