
Private Wealth Law
High Net Worth Guide 2026 : USA - Nationwide
Rankings

Ranked Individuals
Ranked Individuals
About
Provided by Sullivan & Cromwell LLP
To learn about our practice, please visit https://www.sullcrom.com/PracticeListing.
Chambers Review
Provided by Chambers
Strengths
Provided by Chambers
Sullivan & Cromwell is terrific.
Private Wealth Law respondentHigh Net WorthSullivan & Cromwell has experience across jurisdictions. Its offices in various jurisdictions is a strength. They have top clients and high-quality staff working for them. Working with them is always a pleasure.
Private Wealth Law respondentHigh Net WorthSullivan & Cromwell are very strong players.
Private Wealth Law respondentHigh Net Worth
Notable Practitioners
Provided by Chambers
Band 1 
Band 1 
Basil P Zirinis
Basil Zirinis advises on complex cross-border wealth planning matters. Zirinis has a significant reputation as a leading international succession planning expert. Basil Zirinis is a profoundly sophisticated and deeply respected member of the professional community. He is focused on building extraordinary relationships and leads some of the most exciting international matters.
Private Wealth Law respondentHigh Net WorthI think Basil Zirinis is outstanding because of his experience and his ability to strategically advise families of a UK/US background. This is very useful.
Private Wealth Law respondentHigh Net WorthBasil brings a great deal of experience and wisdom to the table. He has wonderful executive presence and a statesmanlike quality.
Private Wealth Law respondentHigh Net WorthBasil Zirinis does international estate panning work. I think very highly of him and that practice group.
Private Wealth Law respondentHigh Net Worth
Band 2 
Band 2 
Zena Tamler
Zena Tamler advises on estate and tax planning as well as business succession planning. Tamler's practice is highly international in scope. Zena Tamler has a remarkable capacity for analysis and is tireless in her delivery of exceptional work product.
Private Wealth Law respondentHigh Net WorthZena Tamler works incredibly hard to make sure things are right for her clients. I am incredibly confident in her and she will not a miss a point.
Private Wealth Law respondentHigh Net WorthZena Tamler is an excellent attorney and provides exemplary service.
Private Wealth Law respondentHigh Net Worth
Ranked Individuals at Sullivan & Cromwell LLP (2)
Members
Provided by Sullivan & Cromwell LLP

Zena Tamler
View profile of Zena Tamler
Basil P Zirinis
View profile of Basil P Zirinis
Sullivan & Cromwell LLP has rankings in the following guides
Band 1 High Net Worth 2026
Practice area: Private Wealth Law
Location: New York
View department profile for High Net Worth 2026Band 4 High Net Worth 2026
Practice area: Private Wealth Law
Location: London (Firms)
View department profile for High Net Worth 2026
What success is built on
Chambers is the leading data and intelligence partner for the legal sector.