10 Sikich executives
Chairman & Chief Executive Officer, Chief Information Officer, Chief Marketing Officer, Managing Principal, Government Services and Managing Principal - Tax are among the current titles held by these Sikich executives. A reader can learn how executives lead Sikich from people who have held the role.
Professionals to explore
Antony Nettleton
LinkedInExperience: Principal · Sikich
Antony Nettleton is a former Managing Partner - CPA at Sikich, a role held from May 2023 to July 2025, and a former Market Leader, Northern Illinois at Sikich from 2021 to July 2025, based in Naperville, Illinois. Antony Nettleton was Chief Financial Officer at Trillium Foods from July 2025 to March 2026 and has been a Principal at Sikich since April 2026.
Cameron Petroff
LinkedInExperience: Chief Marketing Officer · Sikich
Cameron Petroff has been Chief Marketing Officer at Sikich since July 2024 and a Senior Managing Director there since January 2021, based in the Chicago area. Cameron Petroff was Marketing Director at Sikich from 2017 to January 2021, Marketing Director at BDO USA from 2015 to 2017 and National Marketing Manager at Deloitte from 2011 to 2015.
Christopher Geier
LinkedInExperience: Chairman & Chief Executive Officer · Sikich
Christopher Geier has been Chairman & Chief Executive Officer of Sikich since January 2017 and an Executive Board Member at Sikich since 2010, based in the Chicago area. Christopher Geier was Partner in Charge Advisory & Investment Banking at Sikich from April 2008 to December 2016 and Founder & CEO of GEI Capital & Advisory from 1993 to 2008.
David Brockman
LinkedInExperience: Former Partner In Charge, Professional Services Practice Growth · Sikich
David Brockman is a former Partner In Charge, Professional Services Practice Growth at Sikich, a role held from March 2017 to December 2022, and a former Market Lead, Akron/Northeast Ohio at Sikich from June 2016 to December 2022. David Brockman was Managing Partner and Co-Founder of Brockman, Coats, Gedelian & Co from 1986 to 2016.
Kurt Walcutt
LinkedInExperience: Managing Principal - Tax · Sikich
Kurt Walcutt has been Managing Principal - Tax at Sikich since November 2025, based in Strongsville, Ohio. Kurt Walcutt was a Principal at Sikich from May 2024 to October 2025 and a Partner at Thornhill Financial, Inc. from 1996 to January 2024, and the profile lists specialties in international taxation and taxation of high net worth individuals.
Matthew Denton, CPA, MBA
LinkedInExperience: Principal, Growth Practice Leader · Sikich
Matthew Denton has been Principal, Growth Practice Leader at Sikich since December 2025, based in the Chicago area. Matthew Denton was Principal, Market Expansion Leader at Sikich from May 2024 to December 2025 and Partner, Market Expansion Leader there from May 2023 to April 2024.
Ray Lampner, CPA, ABV, CVA, CFF, CEPA
LinkedInExperience: Principal in Charge, CPA Consulting Services · Sikich
Ray Lampner has been Principal in Charge, CPA Consulting Services at Sikich since May 2024 and holds the Partner In Charge, CPA Consulting Services row there dated from January 2021, based in Akron, Ohio. Ray Lampner has been a Partner at Sikich since June 2016 and was a Partner at Brockman, Coats, Gedelian & Co from 2004 to 2016.
Scott Sanders
LinkedInExperience: Chief Information Officer, Principal · Sikich
Scott Sanders has been Chief Information Officer, Principal at Sikich since January 2025, based in Oswego, Illinois, and the profile headline reads Chief Information Officer at Sikich LLC. Scott Sanders was Chief Information Officer at Sikich LLP from December 2018 to January 2025 and also holds an IT Director row at Sikich dated from 1999.
Steve Imler CPA
LinkedInExperience: Managing Partner · Sikich
Steve Imler has been Managing Partner at Sikich since November 2011, based in Indianapolis, and the profile headline reads Managing Partner at Sikich. Steve Imler was Managing Partner of Ent & Imler CPA Group from 1979 to November 2011 and an Audit Manager at Arthur Andersen from 1969 to 1979.
Steven M. Koons, CPA, PMP
LinkedInExperience: Managing Principal, Government Services · Sikich
Steven M. Koons has been Managing Principal, Government Services at Sikich since January 2025, based in Washington, D.C. Steven M. Koons was Principal, Federal Government Service Line Leader at Sikich during 2024, Partner - Federal Government Services & D.C. Market Leader at Cotton from April 2022 to December 2023 and Managing Partner of Cotton from 2020 to 2022.
Choose the right perspective
Match the person's seat, such as a firm-wide officer, a managing principal of a service line or a practice leader, to the decision you face, since each sees a different part of the firm. Check the dates on each person's roles to judge how recent their experience is.
Questions to take into the conversation
- 01What did you focus on first when you took on your leadership role, and why?
- 02How do you decide which issues need your own attention and which your practice leaders should own?
- 03What has your own work taught you about leading partners and staff in an accounting and advisory firm?
Reaching Sikich executives
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.