Jeff Oonk


Jeff has over 20 years of experience in public accounting, leading financial statement audit, review and compilation engagements, with a special focus on the manufacturing and construction industries. Within the construction industry, Jeff works with both general and sub-contractors, as well as underground utility contractors. He particularly enjoys helping clients work through the challenges facing their businesses ,finding answers to accounting or tax issues, planning for the future, and lending his expertise to help them better their business. Jeff also leads 401(k) plan audits.



Bachelor of science in accounting from University of Wisconsin—Whitewater


In the community

American Institute of Certified Public Accountants

Wisconsin Institute of Certified Public Accountants

Pine Hills Country Club, Treasurer