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Ellis Penn & O'Connor Employee Directory

Legal ServicesPennsylvania, United States11-50 Employees

Ellis Penn & O'Connor, Inc. operates in the legal services sector with a focus on IRS and state tax matters. The firm is based in Philadelphia, Pennsylvania.

It describes itself as a national tax resolution practice with a dedicated state tax department staffed by trained professionals. The organization maintains professional memberships with the National Association of Tax Professionals, the Pennsylvania Bar Association, and the National Association of Enrolled Agents. The firm operates as a small to mid-sized practice.

Find Ellis Penn & O'Connor employees' phone numbers or email addresses

Ellis Penn & O'Connor Global Highlights

Location
Employees

North America
7

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  • United States Of America
    7

Ellis Penn & O'Connor's Leadership

  • Stylized image of a person
    D. M.
    Managing Partner
    Phone icon
    Mobile Phone
  • Stylized image of a person
    D. T.
    Associate
    Phone icon
    Mobile Phone
  • Stylized image of a person
    E. P.
    Phone icon
    Mobile Phone
  • Stylized image of a person
    M. T.
    Phone icon
    Mobile Phone

Ellis Penn & O'Connor Employee Metrics

100%
50%
0%
2026
2025
  • Legal
  • Accounting
  • Administrative
  • Analytics
  • Arts & Design
  • Other
  • Community & Social Services

Contact profiles from Ellis Penn & O'Connor

Name
Title
Contact Info
Location
Last Update
  • Stylized image of a person
    D. M.
    Managing Partner
    Phone icon
    Mobile Phone
    United StatesPennsylvania
    May 25, 2025
  • Stylized image of a person
    D. T.
    Associate
    Phone icon
    Mobile Phone
    Oct 21, 2024
  • Stylized image of a person
    E. P.
    Phone icon
    Mobile Phone
    UNITED STATES
    Aug 04, 2023
  • Stylized image of a person
    M. T.
    Phone icon
    Mobile Phone
    UNITED STATES
    Jul 09, 2024

Frequently Asked Questions

What is Ellis Penn & O'Connor known for?

Minus sign iconPlus sign iconEllis Penn & O'Connor operates in the Legal Services industry. The company's main headquarters is located in 1518 Walnut Street Philadelphia, Pennsylvania 19104 United States. Explore Ellis Penn & O'Connor's company overview page for more information.

What is Ellis Penn & O'Connor's most common email format?

Minus sign iconPlus sign iconEllis Penn & O'Connor employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Ellis Penn & O'Connor email formats with LeadIQ.

How many employees does Ellis Penn & O'Connor have currently?

Minus sign iconPlus sign iconEllis Penn & O'Connor has approximately 11 employees as of December 2025. These team members are located across 1 continents, including North America.

Who are Ellis Penn & O'Connor's key employees and leadership?

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As of December 2025, Ellis Penn & O'Connor's key employees include:

  • Managing Partner: D. M.
  • Associate: D. T.
  • : E. P.
  • : M. T.

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