Kostelanetz LLP Employee Directory

Law PracticeNew York, United States51-200 Employees

For more than 75 years, Kostelanetz LLP has built a global reputation as the law firm of choice for clients facing high-stakes controversies and negotiations with government agencies. Kostelanetz attorneys have unparalleled experience in tax controversies and white-collar criminal defense and are regularly called upon to handle the most challenging and sensitive cases and internal investigations. An important part of the firm’s practice includes tax and estate planning, commercial litigation, government procurement, and government contracting.

Kostelanetz attorneys are highly skilled and approach each matter strategically based on decades of administrative and litigation experience. Many of our attorneys have served as former senior officials within the Internal Revenue Service, the U.S. Department of Justice, and other federal and state prosecutors’ offices. Several of the firm’s attorneys have served as federal judicial law clerks and/or have master’s degrees in taxation.

Kostelanetz attorneys are thought leaders who write and teach frequently. Several Kostelanetz partners lecture at top law schools and are often hired as expert witnesses or consultants. 

We have been honored and recognized by major national and international legal rankings agencies, including Chambers USA, The Legal 500, Best Lawyers, and Super Lawyers.  All of our partners are either ranked in Best Lawyers, Super Lawyers, or both.  

In 2018, the firm was honored as Tax Team of the Year by Chambers USA, which described us as “an expert tax boutique.” Six of the firm’s attorneys are ranked by Chambers USA in the categories of Tax (nationally and regionally), Tax: Fraud (nationally), Tax: Controversy (nationally), and Litigation: White-Collar Crime & Government Investigations (New York).

Find Kostelanetz LLP employees' phone numbers or email addresses

Kostelanetz LLP Global Highlights

Location
Employees

North America
79

Minus sign iconPlus sign icon
  • United States Of America
    79

Kostelanetz LLP's Leadership

  • Stylized image of a person
    T. W.
    President Of Welty Pc
    Phone icon
  • Stylized image of a person
    A. S.
    Partner
    Phone icon
  • Stylized image of a person
    B. S.
    Partner
    Phone icon
  • Stylized image of a person
    C. C.
    Partner
    Phone icon
  • Stylized image of a person
    C. R.
    Partner
    Phone icon
  • Stylized image of a person
    C. M.
    Partner
    Phone icon
  • Stylized image of a person
    I. W.
    Partner
    Phone icon
  • Stylized image of a person
    J. N.
    Partner
    Phone icon

Kostelanetz LLP Employee Metrics

100%
50%
0%
2026
2025
  • Legal
  • Accounting
  • Business
  • Business Development
  • Administrative
  • Other

Contact profiles from Kostelanetz LLP

Name
Title
Contact Info
Location
Last Update
  • Stylized image of a person
    F. A.
    Counsel
    Phone icon
    United StatesNew Jersey
    Jan 28, 2026
  • Stylized image of a person
    L. R.
    Paralegal
    Phone icon
    United StatesNew York
    Oct 20, 2025
  • Stylized image of a person
    A. W.
    Counsel
    Phone icon
    United StatesDistrict of Columbia
    Nov 14, 2025
  • Stylized image of a person
    C. W.
    Project Coordinator, Technology And Cybersecurity
    Phone icon
    United StatesNew York
    Nov 11, 2025
  • Stylized image of a person
    D. C. D.
    Associate
    Phone icon
    United StatesDistrict of Columbia
    Oct 25, 2025
  • Stylized image of a person
    D. W.
    Counsel
    Phone icon
    Oct 19, 2025
  • Stylized image of a person
    D. R.
    Associate
    Phone icon
    United StatesGeorgia
    Nov 18, 2025
  • Stylized image of a person
    E. C.
    Tax Counsel
    Phone icon
    United StatesNew York
    Oct 25, 2025
  • Stylized image of a person
    G. P.
    Of Counsel
    Phone icon
    United States
    Sep 10, 2025
  • Stylized image of a person
    H. F.
    Tax Associate
    Phone icon
    United StatesDistrict of Columbia
    Sep 10, 2025

Frequently Asked Questions

What is Kostelanetz LLP known for?

Minus sign iconPlus sign icon
Kostelanetz LLP was founded in 1946 operates in the Law Practice industry. The company's main headquarters is located in 7 World Trade Center 34th Floor New York, New York 10007 United States; you can contact the main corporate office by phone at . Explore Kostelanetz LLP's company overview page for more information.

What is Kostelanetz LLP's most common email format?

Minus sign iconPlus sign icon
Kostelanetz LLP employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Kostelanetz LLP email formats with LeadIQ.

How many employees does Kostelanetz LLP have currently?

Minus sign iconPlus sign icon
Kostelanetz LLP has approximately 78 employees as of February 2026. These team members are located across 1 continents, including North America.

Who are Kostelanetz LLP's key employees and leadership?

Minus sign iconPlus sign icon

As of February 2026, Kostelanetz LLP's key employees include:

  • President Of Welty Pc: T. W.
  • Partner: A. S.
  • Partner: B. S.
  • Partner: C. C.
  • Partner: C. R.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.