Since 1979, we have been providing exceptional service to individuals and businesses everywhere—
from around the corner, to around the world.

As an established and reputable CPA firm based in the St. Louis area, Diel & Forguson is committed to serving clients with personal attention combined with deep industry experience. Some of the industries we serve include: Construction, Manufacturing, Healthcare, Professional Services, Real Estate, Retail, Restaurants, Non-Profits Government, and Wholesalers.

We consistently deliver measureable results to help unlock the full potential of our clients’ financial capacities.

The expert accountants and tax professionals at our CPA firm have access to an extensive network of resources for designing customized financial solutions. In addition to traditional accounting and tax services, we can also provide clients with innovative consulting and management advisory services that are tailored to fit each client’s unique business or personal needs.

Diel & Forguson is more than an accounting company; we are an integral part of a comprehensive network. 

We are truly passionate about what we do and are capable of reaching beyond our own faculties to help businesses and individuals solve challenges and maximize opportunities.