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Adduci, Mastriani & Schaumberg LLP Employee Directory

Law PracticeDistrict of Columbia, United States51-200 Employees

Adduci, Mastriani & Schaumberg LLP is a mid-sized law firm based in Washington, DC. The firm concentrates on international trade law, with a particular emphasis on Section 337 investigations conducted by the U.S. International Trade Commission. Its attorneys have participated in about 30% of ITC Section 337 cases since 1980 and have represented more than 250 parties as either complainants or respondents. Beyond 337 litigation, the practice covers international trade remedies, customs transactions, trade enforcement, and international trade policy. This positioning supports clients facing cross-border commerce and regulatory challenges in the global marketplace.

Find Adduci, Mastriani & Schaumberg LLP employees' phone numbers or email addresses

Adduci, Mastriani & Schaumberg LLP Global Highlights

Location
Employees

North America
24

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  • United States Of America
    24

Asia
1

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  • Indonesia
    1

Adduci, Mastriani & Schaumberg LLP's Leadership

  • Stylized image of a person
    I. D. S.
    Owner
    Phone icon
    Mobile Phone
  • Stylized image of a person
    A. A.
    Partner
    Phone icon
    Mobile Phone
  • Stylized image of a person
    C. S.
    Partner
    Phone icon
    Mobile Phone
  • Stylized image of a person
    W. W.
    Partner
    Phone icon
    Mobile Phone
  • Stylized image of a person
    J. T.
    Associate
    Phone icon
    Mobile Phone
  • Stylized image of a person
    L. T.
    Administrative And Legal Secretary
    Phone icon
    Mobile Phone
  • Stylized image of a person
    P. L.
    Attorney
    Phone icon
    Mobile Phone
  • Stylized image of a person
    S. T.
    Attorney
    Phone icon
    Mobile Phone

Adduci, Mastriani & Schaumberg LLP Employee Metrics

100%
50%
0%
2026
2025
  • Business
  • Administrative
  • Human Resources
  • Legal
  • Accounting
  • Other
  • Analytics
  • Arts & Design
  • Business Development

Contact profiles from Adduci, Mastriani & Schaumberg LLP

Name
Title
Contact Info
Location
Last Update
  • Stylized image of a person
    I. D. S.
    Owner
    Phone icon
    Mobile Phone
    Indonesia
    Apr 15, 2026
  • Stylized image of a person
    A. A.
    Partner
    Phone icon
    Mobile Phone
    May 01, 2024
  • Stylized image of a person
    C. S.
    Partner
    Phone icon
    Mobile Phone
    Oct 22, 2024
  • Stylized image of a person
    W. W.
    Partner
    Phone icon
    Mobile Phone
    Oct 16, 2024
  • Stylized image of a person
    J. T.
    Associate
    Phone icon
    Mobile Phone
    Oct 23, 2024
  • Stylized image of a person
    L. T.
    Administrative And Legal Secretary
    Phone icon
    Mobile Phone
    Oct 23, 2024
  • Stylized image of a person
    P. L.
    Attorney
    Phone icon
    Mobile Phone
    Oct 16, 2024
  • Stylized image of a person
    S. T.
    Attorney
    Phone icon
    Mobile Phone
    Oct 18, 2024

Frequently Asked Questions

What is Adduci, Mastriani & Schaumberg LLP known for?

Minus sign iconPlus sign iconAdduci, Mastriani & Schaumberg LLP was founded in 1981 operates in the Law Practice industry. Explore Adduci, Mastriani & Schaumberg LLP's company overview page for more information.

What is Adduci, Mastriani & Schaumberg LLP's most common email format?

Minus sign iconPlus sign iconAdduci, Mastriani & Schaumberg LLP employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Adduci, Mastriani & Schaumberg LLP email formats with LeadIQ.

How many employees does Adduci, Mastriani & Schaumberg LLP have currently?

Minus sign iconPlus sign iconAdduci, Mastriani & Schaumberg LLP has approximately 51 employees as of July 2026. These team members are located across 2 continents, including North AmericaAsia.

Who are Adduci, Mastriani & Schaumberg LLP's key employees and leadership?

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As of July 2026, Adduci, Mastriani & Schaumberg LLP's key employees include:

  • Owner: I. D. S.
  • Partner: A. A.
  • Partner: C. S.
  • Partner: W. W.
  • Associate: J. T.

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