About Us




About Us

The core value of our firm comes from the members of our team. Each of our team members brings a distinctive knowledge base and unique experience to the firm. Along with varied personal and business backgrounds, our team members are involved in many different volunteers and professional capacities, including current and prior leadership with the Arizona Society of Certified Public Accountants (ASCPA) and the American Institute of Certified Public Accountants (AICPA). Our diverse backgrounds mean we learn from each other every day to better serve you!

Our expertise includes the following:

We provide planning and guidance services to closely held businesses in a variety of industries including professional, medical, construction, real estate, and manufacturing. We also have specialty expertise, including water and waste water utilities, school tuition organizations, and experience with foreign tax reporting.

Ullmann & Company, P.C. is licensed to practice accounting by the Arizona State Board of Accountancy as are all CPAs working for the firm. The firm has been subjected to a review of its system of quality control, most recently in November 2017, and the system of quality control of Ullmann & Company was deemed to meet all requirements established by the AICPA. You can view a copy of our peer review report here. The firm is a member of the American Institute of Certified Public Accountants (AICPA) and the Arizona Society of Certified Public Accountants (ASCPA).

Meet our Team Members

Jared Van Arsdale, CPA, MBA 

Heather Gordon, CPA, MBA 

Peggy H. Ullmann, CPA, CGMA 

Katherine W. Flores, CPA, MBA 

Skender Agic  

Penny Hahn, CPA, MBA, CGMA

Katrina Chavez 

Brian R. Lee, CPA

Amy Pickard 

Ryker Gustafson

Jennifer Daniels