A Few Words
About Us
Service & Accuracy you can count on
Our firm is proud to have offered tax and accounting services to not only the Siouxland area, but also all across the country for over 45 years. Read about our wonderful team below.
Brent Jensen
CPA
Brent started his public accounting career with the firm in 1989. Brent is a graduate from the University of Iowa where he initially started in a career of banking. He serves both individuals and businesses with tax preparation and planning.
brent@houlihancpa.com
Brian Jensen
CPA
Brian joined the firm in 1984 as a graduate from the University of Iowa. He continues to help individuals and businesses with all tax preparation and planning needs.
brian@houlihancpa.com
Gabrielle Koithan
CPA
Gabby joined the firm in 2022. As a graduate from East High School, and then Morningside University, she is proud to serve the community she grew up in. Gabby has experience in both public and private accounting. She helps individuals and businesses with any and all tax, accounting, planning, and payroll needs.
gkoithan@houlihancpa.com
Jaden Dickerson
EA
Jaden began her career in public accounting in 2020 and joined the firm in 2024. She earned her Enrolled Agent credentials in 2025 and is currently pursuing her CPA license. Jaden supports clients across a range of tax and accounting areas, including individual and business income tax, bookkeeping, and payroll services.
jaden@houlihancpa.com
Jonathan Kruse
Quickbooks Proadvisor Level 1 & 2, Payroll; Inuit Bookkeeping Certified
Jonathan began his career in accounting after graduating from Iowa State University in 2020. He joined the firm in 2024. Jonathan helps individuals and businesses with their bookkeeping and payroll needs.
jonathan@houlihancpa.com
Robert Houlihan
CPA, CFP, PFS
Bob started this firm in 1976 and has been working in public accounting since 1970.
bob.houlihan@houlihancpa.com
Patti Lantz
EA
Patti has over 40 years of experience at the firm. She has helped businesses with all accounting and payroll needs as well as prepare tax returns for individuals and businesses.
patti@houlihancpa.com
Tammy Keegan
Tammy has been working in administration since 1994. She joined the firm in 2023 to assist in our billing processes, bookkeeping and other administrative tasks.
tammy@houlihancpa.com
Marcy Allibone
Marcy is responsible for all submissions of tax return filings to the appropriate taxing authorities. She has been with the firm since 1999.