Insights

Local SMB growth Longstanding Northwest Indiana and Chicago south suburbs client base indicates a steady stream of small to midsize businesses that may need ongoing accounting, tax planning, bookkeeping, payroll, and advisory services as they scale.

Tax and expertise Enrolled Agent designation and advanced technical tax capabilities present an opportunity to upsell specialized tax planning, IRS representation, and multi-state tax compliance for growing businesses facing complex tax situations.

Service breadth Combination of high-end firm services with personalized approach suggests potential to cross-sell comprehensive packages including audits, advisory, controller services, and outsourced bookkeeping to similar sized firms seeking efficiency.

Digital presence Tech stack reliance on Cloudflare, cloud mail, WordPress-related tools, and reviews indicates opportunities to optimize digital marketing, SEO, lead capture, and reputation management to attract new clients and expand market reach.

Growth-ready market Revenue band and regional focus imply potential for expanding services to multi-state small businesses, including tax compliance across states, payroll for payroll-heavy clients, and advisory offerings to improve profitability and compliance.

Similar companies to McMahon & Associates, Certified Public Accountants, P.C.

McMahon & Associates, Certified Public Accountants, P.C. Tech Stack

McMahon & Associates, Certified Public Accountants, P.C. uses 8 technology products and services including RSS, Apple iCloud Mail, Google Fonts API, and more. Explore McMahon & Associates, Certified Public Accountants, P.C.'s tech stack below.

  • RSS
    Content Management System
  • Apple iCloud Mail
    Email
  • Google Fonts API
    Font Scripts
  • Slider Revolution
    Miscellaneous
  • Elementor
    Page Builders
  • SiteGround
    Platform As A Service
  • PHP
    Programming Languages
  • Trustindex Google Reviews
    Web Platform Extensions

McMahon & Associates, Certified Public Accountants, P.C.'s Email Address Formats

McMahon & Associates, Certified Public Accountants, P.C. uses at least 1 format(s):
McMahon & Associates, Certified Public Accountants, P.C. Email FormatsExamplePercentage
F.Last@mcmahonpc.comJ.Doe@mcmahonpc.com
97%
First@mcmahonpc.comJohn@mcmahonpc.com
3%

Frequently Asked Questions

What is McMahon & Associates, Certified Public Accountants, P.C.'s phone number?

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You can contact McMahon & Associates, Certified Public Accountants, P.C.'s main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is McMahon & Associates, Certified Public Accountants, P.C.'s official website and social media links?

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McMahon & Associates, Certified Public Accountants, P.C.'s official website is mcmahonpc.com and has social profiles on LinkedIn.

How much revenue does McMahon & Associates, Certified Public Accountants, P.C. generate?

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As of August 2026, McMahon & Associates, Certified Public Accountants, P.C.'s annual revenue is estimated to be $25M - $50M.

What is McMahon & Associates, Certified Public Accountants, P.C.'s SIC code NAICS code?

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McMahon & Associates, Certified Public Accountants, P.C.'s SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does McMahon & Associates, Certified Public Accountants, P.C. have currently?

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As of August 2026, McMahon & Associates, Certified Public Accountants, P.C. has approximately 30 employees across 2 continents, including North AmericaOceania. Key team members include Vice President And General Manager - Exton: C. A.President: N. S.Owner: A. L.. Explore McMahon & Associates, Certified Public Accountants, P.C.'s employee directory with LeadIQ.

What industry does McMahon & Associates, Certified Public Accountants, P.C. belong to?

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McMahon & Associates, Certified Public Accountants, P.C. operates in the Accounting industry.

What technology does McMahon & Associates, Certified Public Accountants, P.C. use?

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McMahon & Associates, Certified Public Accountants, P.C.'s tech stack includes RSSApple iCloud MailGoogle Fonts APISlider RevolutionElementorSiteGroundPHPTrustindex Google Reviews.

What is McMahon & Associates, Certified Public Accountants, P.C.'s email format?

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McMahon & Associates, Certified Public Accountants, P.C.'s email format typically follows the pattern of F.Last@mcmahonpc.com. Find more McMahon & Associates, Certified Public Accountants, P.C. email formats with LeadIQ.

When was McMahon & Associates, Certified Public Accountants, P.C. founded?

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McMahon & Associates, Certified Public Accountants, P.C. was founded in 1971.
McMahon & Associates, Certified Public Accountants, P.C. logo

McMahon & Associates, Certified Public Accountants, P.C.

AccountingIndiana, United States11-50 Employees

McMahon & Associates, Certified Public Accountants, P.C., is a locally owned accounting firm based in Munster, Indiana. It offers a broad suite of services, from advanced tax work to bookkeeping and payroll, supported by IRS Enrolled Agent credentials. The firm combines the resources expected of larger firms with the personal attention typical of smaller practices.

The firm serves clients across Northwest Indiana and Chicago’s south suburbs, working with both new entrepreneurs and established multi-state businesses. Having operated for more than four decades, it maintains a long-standing local presence and focuses on supporting clients’ financial performance through comprehensive accounting and tax services.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1971
Employees
11-50

Section iconFunding & Financials

  • $25M - $50M

    McMahon & Associates, Certified Public Accountants, P.C.'s revenue is estimated to be in the range of $25M - $50M

Section iconFunding & Financials

  • $25M - $50M

    McMahon & Associates, Certified Public Accountants, P.C.'s revenue is estimated to be in the range of $25M - $50M

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