Our Core Values

Who We Are

TDT has been helping small businesses thrive since 1975. We are a Top 400 Firm with 80 team members, including 10 Partners, across 8 locations in the great state of Iowa. TDT is the abbreviation for the names of our original founding partners: Theobald, Donohue & Thompson.

We serve clients nationwide through 3 core service areas: Advisory, Tax, and Assurance.

Our Core Values

We believe everyone has unique life and work values that make them who they are. At TDT, we have 6 core values that our team exhibits and lives out every day. These values drive our culture.

Watch our videos below to learn how our team members exemplify our core values. 

Be Better

We constantly strive to grow and improve; to be better than we were before.


We do what’s right & follow through. Even when it’s not the easiest or most popular choice.


We are authentic and approachable. We sincerely desire to be kind and helpful.

Team First

We leverage our individual strengths to do more together than we could alone.

Own It

We take responsibility, we take initiative, and we figure things out.


We love what we do. We don’t just work with numbers; we work with people.