Guardia Group

Professional Accounting, Payroll, and Business Services

Let us help keep your business in order!

(636) 544-1000

About Us

Accounting & Bookkeeping

We can replace your back office with accounting, payroll, and bookkeeping support. When it comes to complex issues, rely on us. 

Your Taxes, Simplified

We’re dedicated to our clients. We are committed to the ideal of paying taxes on what you accurately owe...and that's it. We know you work hard for your money and you should keep as much of it as you can.  After all, you earned it.  We keep current on tax law so we’re always ready for the toughest situations. 

Your Business is Ours

We develop strategies for both business and individual clients. And we work hard and long hours when they need us—even after tax season. So let us tackle your most pressing financial issues.


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Who We Are


Quickbooks Pro Adviser

Patriot Software Certified Adviser

Quickbooks Online Certified Pro Adviser

Locally Owned

We Love the St. Louis Area, both born & raised here.

We are centrally located to serve your business needs.



Specializing in financial analysis, financial planning

Get a Free Quote

We understand that the accounting needs for each business or family are unique. Use our form to tell us more about your needs, and concerns, and we will contact you.

Guardia Group Business Services

1360 South 5th Street Suite 290, St Charles, MO 63301, United States

(636) 544-1000


Monday - Friday: 9am - 5pm

Saturday: By appointment

Sunday: Closed