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Ivins, Phillips & Barker

Ivins, Phillips & Barker practices federal tax, benefits and compensation, and estate and gift tax law.

Law Practice
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Headquarters
Washington, District of Columbia, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
11 to 50Source: RevenueBaseRetrieved October 13, 2026
Founded
1935Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
29 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Ivins, Phillips & Barker do?

Founded in 1935 by two original United States Tax Court judges, the firm focuses on the Internal Revenue Code and Department of Labor regulations. The firm provides timely advice on how tax-law changes affect clients and their businesses.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

Who it serves

Its clients include Fortune 500 and smaller companies, tax-exempt organizations, and high-net-worth individuals.

What the business offers

Services & capabilities.

Tax counsel

The firm provides counsel across major areas of tax law, including attention to intricate issues and rapid responses to emergencies.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

Share your recognition

Embeddable award for your website

BADGE PREVIEWIvins, Phillips & Barker listed #1 on Estate planning architects, October 11, 2026Open the published source list.
Ivins, Phillips & Barker

#1 Estate planning architects

Snapshot: October 11, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 5, 2026, September 13, 2026, September 18, 2026, September 19, 2026, September 21, 2026, September 22, 2026, September 26, 2026, September 27, 2026, September 28, 2026, September 30, 2026 and October 11, 2026. How the company lists are built.

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