Yun-Wen Tsang

(484) 763-8545 · 425 Lexinton Avenue, New York, NY 10017

Overview

YUN-WEN TSANG (Registration #6265789) is an attorney in New York admitted in the Third Judicial Department (seated in Albany) of New York State in 2025, registered with the Office of Court Administration (OCA) of New York State Unified Court System. The employer is SIMPSON THACHER & BARTLETT LLP. The attorney was graduated from University of Pennsylvania Carey Law School. The registered office location is at 425 Lexinton Avenue, New York, NY 10017, with contact phone number (484) 763-8545. The current status of the attorney is Currently registered.

Attorney Information

Registration Number6265789
Full NameYUN-WEN TSANG
First NameYUN-WEN
Last NameTSANG
Company NameSIMPSON THACHER & BARTLETT LLP
Address425 Lexinton Avenue
New York
NY 10017
CountyNew York
Telephone(484) 763-8545
Law SchoolUniversity of Pennsylvania Carey Law School
Judicial Department of AdmissionThird Judicial Department (seated in Albany)
Year Admitted2025
StatusCurrently registered
Next RegistrationJul 2027

Organization Information

Company NameSIMPSON THACHER & BARTLETT LLP
Address425 Lexinton Avenue
New York
NY 10017
Telephone(484) 763-8545
Law SchoolUniversity of Pennsylvania Carey Law School

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Address: 1 Ropemaker Street, Citypoint, London, UNITED KINGDOM OF GREAT BRITAIN
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Company Name: SIMPSON THACHER & BARTLETT LLP
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Address: 425 Lexington Ave Fl 24, New York, NY 10017-3903
Company Name: SIMPSON THACHER & BARTLETT LLP
Law School: University of Pennsylvania Carey Law School
Year Admitted: 2026
Address: 425 Lexington Ave Rm 1558b, New York, NY 10017-3903
Company Name: SIMPSON THACHER & BARTLETT LLP
Law School: Duke University School of Law
Year Admitted: 2026
Address: 425 Lexington Ave Rm 1522, New York, NY 10017-3903
Company Name: SIMPSON THACHER & BARTLETT LLP
Law School: Harvard Law School
Year Admitted: 2025
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Address: 343 Maple Ave, Westbury, NY 11590-3390
Company Name: NATHAN & KAMIONSKI
Law School: University of Pennsylvania Carey Law School
Year Admitted: 2026
Address: 1 N Wacker Dr Ste 4400, Chicago, IL 60606-2841
Company Name: BARNES AND THORNBURG LLP
Law School: University of Pennsylvania Carey Law School
Year Admitted: 2026
Address: 425 Lexington Ave Ofc 707, New York, NY 10017-3903
Company Name: SIMPSON THACHER & BARTLETT
Law School: University of Pennsylvania Carey Law School
Year Admitted: 2026
Address: 1285 Avenue of The Americas # E-2004a, New York, NY 10019-6031
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Address: 800 Boylston St, Boston, MA 02199-3600
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Address: 10f, No. 70, Nanjing E. Rd., Zhongshan Dist., Taipei City 104, TAIWAN
Company Name: POWERCHIP INVESTMENT HOLDING CORPORATION
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Year Admitted: 2026
Address: 600 Massachusetts Ave Nw Ste 400, Washington, DC 20001-5358
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Location Information

Street Address 425 LEXINTON AVENUE
CityNEW YORK
StateNY
Zip Code10017

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Law School: City University of New York School of Law
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Address: 22 Vanderbilt Ave Ste 2400, New York, NY 10017
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Address: 9.606a, New York, NY 10017
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Address: 885 Second Ave 3rd Floor, New York, NY 10017
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Address: 2 Grand Central Tower, 140 East 45th Street, Suite 26a, New York, NY 10017
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Year Admitted: 2026
Address: 2 Grand Central Tower 140 E 45th Street Suite 26a, New York, NY 10017
Company Name: CLYDE & CO LLP
Law School: Albany Law School
Year Admitted: 2025
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Dataset Information

This dataset includes over 300 thousands attorneys registered with the Office of Court Administration (OCA), which oversees and administrates the New York State Unified Court System. Each attorney is registered with the registration number, full name, company name and address, phone number, email, year admitted, etc. The information provided is deemed public information pursuant to 22 NYCRR 118 (Rules of the Chief Administrative Judge).

SubjectTransparency and Disclosure
JurisdictionState of New York
Data ProviderOffice of Court Administration (OCA), New York State Unified Court System
Sourcedata.ny.gov

Dataset Details

According to Part 118 of the Administrative Rules of the Unified Court System & Uniform Rules of the Trial Courts, every attorney admitted to practice in New York Stat, whether resident or nonresident, and whether or not in good standing, shall file a registration statement with the Chief Administrator of the Courts within 60 days of the date of such admission, and during each alternate year thereafter, within 30 days after the attorney's birthday, for as long as the attorney remains duly admitted to the New York bar. Section 468-a of the NY Judiciary Law and 22 NYCRR Part 118 of the Rules of the Chief Administrator of the Courts require the biennial registration of all attorneys admitted in the State of New York, whether they are resident or non-resident, active or retired, or practicing law in New York or elsewhere. All attorneys are required to renew their attorney registration every two years, within 30 days after their birthday. Except for certain cases, the information contained in the registration statement filed shall be made available to the public.

This dataset includes all registered attorneys admitted in NYS, whether they are resident or non-resident, active or retired, or practicing law in NY or anywhere else. The disclosed information for each attorney includes Registration Number, First Name, Middle Name, Last Name, Suffix, Company Name, Street Address, City, County, Country, Business Telephone Number, Year Admitted to the NYS Bar, Judicial Department of Admission, Law School from which degree was granted, the registration status of the attorney, Next Registration month and year.

To give New Yorkers the access they deserve to government data and information, Governor Andrew M. Cuomo launched the Open NY initiative in March 2013 and signed Executive Order 95. It directs state agencies to identify, catalog, and publish their data on the state's open data website administered by the Office of Information Technology Services (ITS). Open NY increases transparency, improves government performance, empowers New Yorkers to participate in government, and encourages research and economic opportunities statewide.