Insights

Niche expertise EllisPenn & O'Connor specializes as a top IRS and state tax resolution firm, indicating strong expertise in tax-related legal services that can be expanded to general tax advisory and compliance solutions for similar clients.

Technology Usage The company's use of common enterprise tools like WordPress, Google Workspace, and PHP suggests openness to technology-based service solutions, presenting opportunities for introducing advanced legal tech or client management platforms.

Market Position As a specialized firm with a revenue profile of up to $10 million and a small team, EllisPenn & O'Connor may be seeking scalable solutions such as automation or marketing services that align with growth while maintaining niche expertise.

Industry Network Memberships with the NATP, Pennsylvania Bar Association, and NAEA indicate strong professional networking, offering pathways for partnership or referral-based growth strategies within legal and tax professional communities.

Growth Potential Potential sales opportunities include professional development services, legal technology innovations, and targeted marketing investments tailored to small to mid-sized legal firms focused on tax resolution services.

Similar companies to Ellis Penn & O'Connor

Ellis Penn & O'Connor Tech Stack

Ellis Penn & O'Connor uses 8 technology products and services including WordPress, Open Graph, Google Workspace, and more. Explore Ellis Penn & O'Connor's tech stack below.

  • WordPress
    Content Management System
  • Open Graph
    Content Management System
  • Google Workspace
    Email
  • Clipboard.js
    Javascript Libraries
  • PHP
    Programming Languages
  • Creativ.eMail
    Web Platform Extensions
  • Apache
    Web Servers
  • Apache HTTP Server
    Web Servers

Media & News

Ellis Penn & O'Connor's Email Address Formats

Ellis Penn & O'Connor uses at least 1 format(s):
Ellis Penn & O'Connor Email FormatsExamplePercentage
First@ellispenn.comJohn@ellispenn.com
41%
Last@ellispenn.comDoe@ellispenn.com
9%
First@ellispenn.comJohn@ellispenn.com
41%
Last@ellispenn.comDoe@ellispenn.com
9%

Frequently Asked Questions

What is Ellis Penn & O'Connor's official website and social media links?

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Ellis Penn & O'Connor's official website is ellispenn.com and has social profiles on LinkedIn.

What is Ellis Penn & O'Connor's SIC code NAICS code?

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Ellis Penn & O'Connor's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services NAICS code is 5411 - Legal Services.

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

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As of December 2025, Ellis Penn & O'Connor has approximately 11 employees across 1 continents, including North America. Key team members include Managing Partner: D. M.Office Manager: E. G.Associate: D. T.. Explore Ellis Penn & O'Connor's employee directory with LeadIQ.

What industry does Ellis Penn & O'Connor belong to?

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Ellis Penn & O'Connor operates in the Legal Services industry.

What technology does Ellis Penn & O'Connor use?

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Ellis Penn & O'Connor's tech stack includes WordPressOpen GraphGoogle WorkspaceClipboard.jsPHPCreativ.eMailApacheApache HTTP Server.

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

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Ellis Penn & O'Connor's email format typically follows the pattern of First@ellispenn.com. Find more Ellis Penn & O'Connor email formats with LeadIQ.

Ellis Penn & O'Connor

Legal ServicesPennsylvania, United States11-50 Employees

EllisPenn & O'Connor, Inc. The Nation’s Top IRS and State Tax Specialist. We are Members of the National Association of Tax Professionals (NATP), Pennsylvania Bar Association, and the National Association of Enrolled Agents (NAEA). We are the only National Tax Resolution Firm with a State Tax Department with highly trained professionals!

Section iconCompany Overview

SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5411 - Legal Services
Employees
11-50

Section iconMedia & News

Section iconFunding & Financials

  • $1M$10M

    Ellis Penn & O'Connor's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    Ellis Penn & O'Connor's revenue is estimated to be in the range of $1M$10M

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