Insights

Niche Tax Focus Target opportunity in organizations needing specialized IRS and state tax resolution services for complex multi-jurisdictional issues, leveraging EllisPenn & O'Connor’s claimed unique national presence in tax resolution.

Midmarket Focus Sales play targeting small to mid-sized enterprises (11-50 employees) that require expert tax risk management and resolution without engaging large multinational firms, aligning with the firm’s size and posture.

Professional Credentials Position as trusted advisors by emphasizing memberships (NATP, PA Bar Association, NAEA) and specialization in tax matters to win business from firms and corporate departments seeking certified tax resolution expertise.

Tech-Driven Service Leverage existing tech stack (WordPress, MySQL, Google Workspace, Jetpack) as a differentiator for client onboarding, case management, and secure communications, offering scalable onboarding packages to potential clients.

Revenue Growth Signals With estimated revenue in the mid-range of the small-firm spectrum, pursue value-added services such as tax remediation programs, state tax consulting, and recurring compliance advisory to broaden recurring revenue.

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Ellis Penn & O'Connor Tech Stack

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

  • Open Graph
    Content Management System
  • Content Management System
  • MySQL
    Database
  • Clipboard.js
    Javascript Libraries
  • Jetpack
    Web Platform Extensions
  • Apache
    Web Servers
  • Apache HTTP Server
    Web Servers

Ellis Penn & O'Connor's Email Address Formats

Ellis Penn & O'Connor uses at least 2 email formats:
Ellis Penn & O'Connor Email FormatsExamplePercentage
First@ellispenn.comJohn@ellispenn.com
82%
Last@ellispenn.comDoe@ellispenn.com
18%

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.

How much revenue does Ellis Penn & O'Connor generate?

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As of July 2026, Ellis Penn & O'Connor's annual revenue is estimated to be $10M - $25M.

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

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Ellis Penn & O'Connor's SIC code is 8111 - Legal Services and NAICS code is 5411 - Legal Services.

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

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As of July 2026, Ellis Penn & O'Connor has approximately 11 employees across 1 continents, including North America. Key team members include Associate: D. T. and Consultant: S. P. 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 Open Graph, WordPress, MySQL, Google Workspace, Clipboard.js, Jetpack, Apache and Apache 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 logo

Ellis Penn & O'Connor

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.

Section iconCompany Overview

SIC Code
8111 - Legal Services
NAICS Code
5411 - Legal Services
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Ellis Penn & O'Connor's revenue is estimated to be in the range of $10M - $25M

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