What departments does Dugan + Lopatka CPAs have?

Dugan + Lopatka CPAs has employees across 2 departments including Administrative, Accounting.

What is the largest department at Dugan + Lopatka CPAs?

The largest department at Dugan + Lopatka CPAs is Accounting with 2 employees.

Where are Dugan + Lopatka CPAs employees located globally?

Dugan + Lopatka CPAs has employees across 1 continents and 1 countries including United States Of America.

How has Dugan + Lopatka CPAs's team size changed over time?

Dugan + Lopatka CPAs's team has decreased from approximately 45 to 18 employees based on available data.

Dugan + Lopatka CPAs Employee Directory

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.

Dugan + Lopatka CPAs Global Highlights

North America
62

United States Of America
62

Dugan + Lopatka CPAs's Leadership

N. D.
Manager, Firm Administration
Mobile Phone
Email
B. M.
Tax Manager
Mobile Phone
Email
C. R.
Manager Tax Department
Mobile Phone
Email
D. K.
Tax Senior
Mobile Phone
Email
K. S.
Senior Associate, Accounting & Advisory Services Department
Mobile Phone
Email
C. R.
Cpa
Mobile Phone
Email
G. S.
Staff Accountant, Tax Department
Mobile Phone
Email
L. W.
Nonprofit Tax Associate
Mobile Phone
Email

Dugan + Lopatka CPAs Employee Metrics

100%

50%

0%

2026

2025

Accounting
Business
Business Development
Community & Social Services
Administrative
Other
Analytics
Arts & Design
Banking
Information Technology

Contact profiles from Dugan + Lopatka CPAs

Name

Title

Contact Info

Location

Last Update

N. D.
Manager, Firm Administration
Mobile Phone
Email
United StatesMissouri
Apr 14, 2026
B. M.
Tax Manager
Mobile Phone
Email
Oct 21, 2024
C. R.
Manager Tax Department
Mobile Phone
Email
Oct 16, 2024
D. K.
Tax Senior
Mobile Phone
Email
United StatesArizona
Jan 27, 2026
K. S.
Senior Associate, Accounting & Advisory Services Department
Mobile Phone
Email
UNITED STATES
Oct 17, 2024
C. R.
Cpa
Mobile Phone
Email
United StatesNew Hampshire
Apr 16, 2026
G. S.
Staff Accountant, Tax Department
Mobile Phone
Email
Oct 16, 2024
L. W.
Nonprofit Tax Associate
Mobile Phone
Email
United StatesSouth Carolina
Oct 22, 2024
S. T.
Bookkeeper
Mobile Phone
Email
Oct 22, 2024
B. M.
Manager, Cas Department
Mobile Phone
Email
United StatesNew Jersey
Feb 25, 2026

Frequently Asked Questions

What is Dugan + Lopatka CPAs known for?

Dugan + Lopatka CPAs was founded in 1974 operates in the Accounting industry. The company's main headquarters is located in 4320 Winfield Road Warrenville, Illinois 60555 United States; you can contact the main corporate office by phone at

+1-630-665-****

. Explore Dugan + Lopatka CPAs's company overview page for more information.

What is Dugan + Lopatka CPAs's most common email format?

Dugan + Lopatka CPAs employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Dugan + Lopatka CPAs email formats with LeadIQ.

How many employees does Dugan + Lopatka CPAs have currently?

Dugan + Lopatka CPAs has approximately 43 employees as of June 2026. These team members are located across 1 continents, including North America.

Who are Dugan + Lopatka CPAs's key employees and leadership?

As of June 2026, Dugan + Lopatka CPAs's key employees include:

Manager, Firm Administration: N. D.
Tax Manager: B. M.
Manager Tax Department: C. R.
Tax Senior: D. K.
Senior Associate, Accounting & Advisory Services Department: K. S.

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Dugan + Lopatka CPAs Employee Directory

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