Naperville Office
184 Shuman Blvd Suite 200, Naperville, IL 60563
(630) 420-1360
Office Hours
Monday – Friday: 8:30 am – 5:00 pm
Weekends: Closed

St. Charles Office
2560 Foxfield Rd Suite 300, St. Charles, IL 60174
(630) 377-1106
Office Hours
Monday – Friday: 8:30 am – 5:00 pm
Weekends: Closed

Areas We Service
Make your business stronger and your life simpler. Listed below are the areas we service! Please reach out if you do not see your location listed!
- Elk Grove Village, IL
- Joliet, IL
- Rockford, IL
- Elgin, IL
- Springfield, IL
- Peoria, IL
- Champaign, IL
- Waukegan, IL

Tax Services for Businesses
Your business deserves a customized approach to tax planning.
Tax Services for Businesses
Business Audit & Assurance Services
Financial success relies on having the right information at the right time.
Business Audit & Assurance Services
Business Advisory
Reach your goals more efficiently with the knowledgeable business advisory specialists at DHJJ.
Business Advisory
Financial Advisory
Financial success relies on having the right information at the right time.
Financial Advisory
What we do
Highly-skilled, with deeper knowledge, & innovative services to help achieve your goals
There’s a reason so many families and business owners in Naperville, St. Charles, and the surrounding areas have relied on DHJJ for over 50 years. With a seasoned staff of over 100 strong, our partners and other team members deliver a complete range of services to help you achieve what you set out to do, no matter what your goals may be. But our people go one step further by getting to know you and your company, establishing personal, caring relationships and even incorporating a bit of fun into the process.
Whether you’re trying to manage wealth to benefit future generations or help your business reach its full financial potential, we’ve got you covered. Count on DHJJ for insights and services that let you do more, save more and worry less. Your business – and your bottom line – will thank you.
Our Team
Professional. Personal. Customized expertise.
Recent insights

Understanding the New IRS Regulations on SECURE 2.0 Catch-Up Contributions for 2026
Key Takeaways Beginning in 2026, employees aged 50 or older who participate in a 401(k), 403(b), or 457(b)…

How to Pick a CPA Firm You Can Trust [Ask a DHJJ CPA Podcast Episode 1]
When you’re busy running a business, “finding a CPA firm” can feel like one more admin task on…

Why Audit Readiness Really Matters
Audits often bring mixed emotions for business owners and CFOs alike. For some, they serve as validation of…








