Insights

Strong Market Presence Dugan + Lopatka operates within the middle-market segment, serving private companies and nonprofit organizations, which presents an opportunity to tailor enterprise technology solutions that enhance client engagement and operational efficiency.

Revenue Growth Potential With a revenue range of 25 to 50 million dollars and over 50 years of industry experience, the firm is positioned for expansion and could benefit from sales of advanced financial management, automation, and analytics tools to support growth.

Technology Utilization The company's current tech stack includes tools such as Google Ads, MySQL, and PHP, indicating openness to digital solutions; introducing cloud-based compliance, reporting, and AI-driven analytics could further optimize their service offerings.

Focus on Personalized Service Dugan + Lopatka emphasizes comprehensive, personalized client service, which suggests an opportunity to demonstrate how sophisticated client relationship management and communication platforms can add value.

Target Key Competitors As a mid-sized firm competing with large industry players like EY and Deloitte, there is potential to differentiate through marketing automation, lead generation strategies, and tailored sales approaches that highlight personalized service and specialized expertise.

Similar companies to Dugan + Lopatka CPAs

Dugan + Lopatka CPAs Tech Stack

Dugan + Lopatka CPAs uses 8 technology products and services including Google Ads Conversion Tracking, AdRoll CMP System, MySQL, and more. Explore Dugan + Lopatka CPAs's tech stack below.

Google Ads Conversion Tracking
Analytics
AdRoll CMP System
Consent Management
MySQL
Database
jQuery Migrate
Javascript Libraries
PHP
Programming Languages
Yoast SEO
Search Engines
YouTube
Video Players
Gravity Forms
Web Platform Extensions

Media & News

Dugan + Lopatka CPAs's Email Address Formats

Dugan + Lopatka CPAs uses at least 1 format(s):

Dugan + Lopatka CPAs Email Formats	Example	Percentage
First.Last@duganlopatka.com	John.Doe@duganlopatka.com	47%
Last@duganlopatka.com	Doe@duganlopatka.com	6%
First.Last@duganlopatka.com	John.Doe@duganlopatka.com	47%

Frequently Asked Questions

Where is Dugan + Lopatka CPAs's headquarters located?

Dugan + Lopatka CPAs's main headquarters is located at 4320 Winfield Road Warrenville, Illinois 60555 United States. The company has employees across 1 continents, including North America.

What is Dugan + Lopatka CPAs's phone number?

You can contact Dugan + Lopatka CPAs's main corporate office by phone at

+1-630-665-****

. 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?

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

How much revenue does Dugan + Lopatka CPAs generate?

As of March 2026, Dugan + Lopatka CPAs's annual revenue is estimated to be $4M.

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

Dugan + Lopatka CPAs'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 Dugan + Lopatka CPAs have currently?

As of March 2026, Dugan + Lopatka CPAs has approximately 44 employees across 1 continents, including North America. Key team members include Tax Manager: B. M.Manager Tax Department: C. R.Tax Senior: D. K.. Explore Dugan + Lopatka CPAs's employee directory with LeadIQ.

What industry does Dugan + Lopatka CPAs belong to?

Dugan + Lopatka CPAs operates in the Accounting industry.

What technology does Dugan + Lopatka CPAs use?

Dugan + Lopatka CPAs's tech stack includes Google Ads Conversion TrackingAdRoll CMP SystemMySQLjQuery MigratePHPYoast SEOYouTubeGravity Forms.

What is Dugan + Lopatka CPAs's email format?

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?

Dugan + Lopatka CPAs was founded in 1974.

Dugan + Lopatka CPAs

Q: What is Dugan + Lopatka CPAs's official website and social media links?

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

Q: How many employees does Dugan + Lopatka CPAs have currently?

Dugan + Lopatka CPAs has approximately 44 employees.

Q: What technology does Dugan + Lopatka CPAs use?

Dugan + Lopatka CPAs's tech stack includes GoDaddy, Google Analytics, Google Tag Manager, Gravity Forms, oEmbed.

Q: What is Dugan + Lopatka CPAs's NAICS code?

Dugan + Lopatka CPAs's NAICS code is 5412 (Accounting, Tax Preparation, Bookkeeping, and Payroll Services).

AccountingIllinois, United States11-50 Employees

Dugan + Lopatka is a full-service Public Accounting Firm in Chicagoland, specializing in middle-market, private companies and nonprofit organizations. For over 50 years, our team of financial experts has brought together a wide range of skills and technologies to provide comprehensive service for our clients.  

While our work is tailored to the individual needs of clients, our core services include accounting, auditing, tax compliance & planning, and mergers & acquisitions.

At D+L, we believe that the success of a business and its finances are inseparable. That’s why we take a comprehensive approach to each client’s business—going beyond the traditional role of an accounting firm to deliver personal service, reliable outcomes and genuine peace of mind. 

That’s Accounting for What Matters.

Company Overview

Headquarters: 4320 Winfield Road Warrenville, Illinois 60555 United States
Phone number: +1-630-665-****
Website: duganlopatka.com
SIC Code: 8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code: 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded: 1974
Employees: 11-50