Insights

Middle-market focus Dugan + Lopatka CPA serves middle-market private companies and nonprofits in Chicagoland, presenting a target audience for tailored audit, tax, and advisory services that align with growth and governance needs.

Growth opportunities With 50+ years in practice and revenue in the 10M–25M range, there is potential to upsell expanded services such as tax planning, mergers and acquisitions advisory, and integrated financial systems to support scale.

Tech-enabled The firm leverages a range of technologies (SEO, CMS, analytics, and web infrastructure) indicating openness to digital transformation projects; potential to cross-sell technology-enabled financial reporting, data analytics, and cloud accounting solutions.

Nonprofit specialization Serving nonprofit organizations alongside private companies signals a niche where donors, grant compliance, and nonprofit auditing services can be expanded, including fiduciary risk and internal controls expertise.

Competitive positioning As a regional firm with a personal service approach, there is an opportunity to position as a high-touch trusted advisor to mid-sized enterprises facing complex compliance, succession planning, and deal activity in M&A.

Dugan + Lopatka CPAs Tech Stack

Dugan + Lopatka CPAs uses 8 technology products and services including Facebook Pixel, AdRoll CMP System, Open Graph, and more. Explore Dugan + Lopatka CPAs's tech stack below.

  • Facebook Pixel
    Analytics
  • AdRoll CMP System
    Consent Management
  • Open Graph
    Content Management System
  • jQuery Migrate
    Javascript Libraries
  • jQuery
    Javascript Libraries
  • Cloudways
    Platform As A Service
  • Yoast SEO Premium
    Search Engines
  • Nginx
    Web Servers

Dugan + Lopatka CPAs's Email Address Formats

Dugan + Lopatka CPAs uses at least 1 format(s):
Dugan + Lopatka CPAs Email FormatsExamplePercentage
First.Last@duganlopatka.comJohn.Doe@duganlopatka.com
87%
Last@duganlopatka.comDoe@duganlopatka.com
11%
FirLast@duganlopatka.comJohDoe@duganlopatka.com
2%

Frequently Asked Questions

What is Dugan + Lopatka CPAs's phone number?

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You can contact Dugan + Lopatka CPAs'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 Dugan + Lopatka CPAs's official website and social media links?

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Dugan + Lopatka CPAs's official website is duganlopatka.com and has social profiles on LinkedIn.

How much revenue does Dugan + Lopatka CPAs generate?

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As of July 2026, Dugan + Lopatka CPAs's annual revenue is estimated to be $10M - $25M.

What is Dugan + Lopatka CPAs's SIC code NAICS code?

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Dugan + Lopatka CPAs's SIC code is 7389 - Business Services, Not Elsewhere Classified NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Dugan + Lopatka CPAs have currently?

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As of July 2026, Dugan + Lopatka CPAs has approximately 43 employees across 1 continents, including North America. Key team members include Tax Manager: B. M.Manager Tax Department: C. R.Staff Accountant, Tax Department: G. S.. Explore Dugan + Lopatka CPAs's employee directory with LeadIQ.

What industry does Dugan + Lopatka CPAs belong to?

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Dugan + Lopatka CPAs operates in the Accounting industry.

What technology does Dugan + Lopatka CPAs use?

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Dugan + Lopatka CPAs's tech stack includes Facebook PixelAdRoll CMP SystemOpen GraphjQuery MigratejQueryCloudwaysYoast SEO PremiumNginx.

What is Dugan + Lopatka CPAs's email format?

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Dugan + Lopatka CPAs's email format typically follows the pattern of First.Last@duganlopatka.com. Find more Dugan + Lopatka CPAs email formats with LeadIQ.

When was Dugan + Lopatka CPAs founded?

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Dugan + Lopatka CPAs was founded in 1974.
Dugan + Lopatka CPAs logo

Dugan + Lopatka CPAs

AccountingIllinois, United States11-50 Employees

Dugan + Lopatka CPAs is a full-service public accounting firm based in Chicagoland, with a focus on middle-market and private companies as well as nonprofit organizations. For more than five decades, the firm has offered core services including accounting, auditing, tax compliance and planning, and mergers and acquisitions, integrating a broad set of skills to serve client needs. The firm positions itself as taking a comprehensive, personalized approach to client finances, aiming to provide reliable outcomes and peace of mind beyond traditional accounting services. Located in Warrenville, Illinois, Dugan + Lopatka serves organizations seeking financial accuracy and guidance across a range of sizes and sectors within the accounting industry.

Section iconCompany Overview

Phone number
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1974
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    Dugan + Lopatka CPAs's revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    Dugan + Lopatka CPAs's revenue is estimated to be in the range of $10M - $25M

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