PCAOB Registered

Languages Spoken: English Russian

Sikich LLP is a leading professional services firm specializing in accounting, advisory, technology and managed services. Founded in 1982, Sikich now ranks as the country’s 28th largest Certified Public Accounting firm and is among the top 10 of all enterprise resource planning solution partners in the country. From corporations and not-for-profits to state and local governments, we help our clients reach their long-term, strategic goals through a unique formula of products and services. Visit our website to discover how you can elevate performance in your organization.

Securities are offered through Sikich Corporate Finance LLC, a registered broker dealer with the Securities Exchange Commission and a member of FINRA/SIPC.

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Christopher Geier Sikich

Chris Geier, CEO / Managing Partner

In addition to leading the overall strategic and financial direction of Sikich LLP, Chris Geier is responsible for large mergers and acquisitions and is a member of the firm’s executive board. Chris is focused on delivering the highest level of professional client service and creating a dynamic workplace where employees can be successful. Chris’ leadership experience includes more than 25 years as an advisor and C-level executive in both private and publicly-traded companies.

Contact Us

Languages Spoken: English and Russian

Sikich LLP

1415 W. Diehl Rd, Suite 400, Naperville, IL 60563


+1 630 566 8400 / +1 877 279 1900

View firm's social media links

Firm Locations

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Primary Location

1415 W. Diehl Rd, Suite 400, Naperville, IL 60563, United States

Tom Luken, CPA, COO / Partner
+1 630 566 8400 / +1 877 279 1900

Chicago, IL, United States

200 W. Madison Street, Suite 3200, Chicago, IL 60606, United States

+1 312 648 6666

Decatur, IL, United States

132 South Water St., Suite 300, Decatur, IL 62523, United States

Tom Leach, Partner in Charge

+1 217 423 6000

Springfield, IL, United States

3201 W. White Oaks Drive, Suite 102, Springfield, IL 62704, United States

Richard Lynch, Partner in Charge
+1 217 862 1869

+1 217 793 3363

Akron, OH, United States

274 White Pond Dr, Akron, OH 44320, United States

Dave Brockman, Partner-in-Charge

+1 330 864 6661

Indianapolis, IN, United States

8555 N. River Rd., Suite 300, Indianapolis, IN 46240, United States

Tom Bayer, Partner in Charge
+1 317 660 4405

+1 317 842 4466

Milwaukee, WI, United States

13400 Bishop's Lane, Suite 300, Milwaukee, WI 53005, United States

Mark Sobczak, Partner-in-Charge

+1 262 754 9400

Denver, CO, United States

6021 S. Syracuse Way, Suite 200, Denver, CO 80111, United States

+1 720 200 0142

St. Louis, MO, United States

12655 Olive Blvd., Suite 200, St. Louis, MO 63141, United States

David Sauerburger, Partner-in-Charge

+1 314 275 7277

Marlborough, MA, United States

2 Mount Royal Ave., Suite 510, Marlborough, MA 01752, United States

+1 508 485 5588

Maple Grove, MN, United States

7014 E Fish Lake Rd, Maple Grove, MN 55311, United States

+1 331 229 5235

Pasadena, CA, United States

87 N. Raymond Ave., Suite 906, Pasadena, CA 91103, United States

+1 877 279 1900

Crofton, MD, United States

2200 Defense Hwy, Suite 403, Crofton, MD 21114, United States

Andy Powell, Partner In Charge

+1 410 451 5150

Alexandria, VA, United States

1199 N Fairfax St, 10th Floor, Alexandria, VA 22314, United States

Andy Powell, Partner In Charge

+1 703 836 1350

East Peoria, IL, United States

201 Clock Tower Dr, 3rd Floor, East Peoria, IL 61611, United States

+1 309 694 4251

People at Sikich LLP

Christopher Geier Photo

Christopher Geier


Tom Luken Photo

Tom Luken

Chief Operating Officer

Tom Hastings Photo

Tom Hastings

Director of Resource Management

Jerald Murphy Photo

Jerald Murphy

Partner-in-Charge - Manufacturing and Distribution Services

Pam Aman Photo

Pam Aman


Cheryl Aschenbrener Photo

Cheryl Aschenbrener

Partner-in-Charge of Private Equity

Tom Bayer Photo

Tom Bayer


Timm Bellazzini Photo

Timm Bellazzini

National Co-leader and Partner, Transaction Advisory Services

Dave Brockman Photo

Dave Brockman

Partner-in-Charge of Professional Services

Tracy Burkhart Photo

Tracy Burkhart


Anthony Cervini Photo

Anthony Cervini


Karrie Chitwood Photo

Karrie Chitwood

Director of Learning & Development

Megan Cochran Photo

Megan Cochran


Nadine Cronin Photo

Nadine Cronin

Senior Manager

Laura Culp Photo

Laura Culp

Partner, Tax and Wealth Mgmt, Construction and Real Estate Vertical Leader

Jim Drumm Photo

Jim Drumm


Kolbeinn Einarsson Photo

Kolbeinn Einarsson


Kurt Estes Photo

Kurt Estes

Managing Director, Head of Corporate Development

Ginny Ferguson Photo

Ginny Ferguson

Partner in Charge, Salesforce Practice

Greg Fiedler Photo

Greg Fiedler


Tim Gaber Photo

Tim Gaber


Dana Howell Photo

Dana Howell


Michael Kean Photo

Michael Kean


Jim Keeslar Photo

Jim Keeslar


Neil Keller Photo

Neil Keller

Partner-in-Charge: Tax

Brian Kelley Photo

Brian Kelley

Managing Director - State & Local Tax Services

Jenny Kramer Photo

Jenny Kramer


Tom Krehbiel Photo

Tom Krehbiel

Partner-in-Charge of CPA Services

Richard Lynch Photo

Richard Lynch

Partner-in-Charge of Not-for-Profit Services

Lori Massutti Photo

Lori Massutti


Elena Mossina Photo

Elena Mossina

Partner-in-Charge of Sikich’s International Tax

Jerry Murphy Photo

Jerry Murphy

Partner-in-Charge of Manufacturing & Distribution

Antony Nettleton Photo

Antony Nettleton

Partner in Charge, Assurance

Janel OConnor Photo

Janel OConnor

Chief Human Resources Officer

Cameron Petroff Photo

Cameron Petroff

Marketing Director

Colleen Redington Photo

Colleen Redington


Laura Reith Photo

Laura Reith


Scott Sanders Photo

Scott Sanders

Chief Information Officer

David Sauerburger Photo

David Sauerburger


Amy Sherwood Photo

Amy Sherwood


Mark Sobczak Photo

Mark Sobczak


Jason Tuma Photo

Jason Tuma


Michael Wolf Photo

Michael Wolf


Ashley Johnson Photo

Ashley Johnson


Kathleen Nelson Photo

Kathleen Nelson

Senior Manager - Accounting Services

Tracy Bryant Photo

Tracy Bryant

Senior Manager, CPA Administration

Matthew Eckert Photo

Matthew Eckert

Senior Manager

Jill Boyle Photo

Jill Boyle

Senior Manager, Not-for-Profit Tax

Kate Burian Photo

Kate Burian

Manager, Forensic Investigations

Matt Calhoun Photo

Matt Calhoun

Audit Manager

Rohini Chandrabhatla Photo

Rohini Chandrabhatla

Tax Manager

Carrie Chin Photo

Carrie Chin

Delivery Manager - Learning and Development

Matt Cimpl Photo

Matt Cimpl

Audit Manager

Leah Davis Photo

Leah Davis

HR Manager

Matthew Evanoff Photo

Matthew Evanoff

Audit Manager

Stephanie Goudzwaard Photo

Stephanie Goudzwaard

Marketing Manager

Kathrine Hazel-Jackson Photo

Kathrine Hazel-Jackson

Accounting Services Manager

Roberta Newnam Photo

Roberta Newnam

Senior Auditor

Tony Palmen Photo

Tony Palmen

Audit Manager

Kelli Schweder Photo

Kelli Schweder

Director of Corporate Strategic Projects

Dustin Sheppard Photo

Dustin Sheppard

Senior Manager Tax Services

Lynn Simes Photo

Lynn Simes

Tax Manager

Thomas Siwicki Photo

Thomas Siwicki

Senior Manager

Tim Spencer Photo

Tim Spencer

Tax Manager

Martha Trotter Photo

Martha Trotter

Senior Manager

Joy Walker Photo

Joy Walker

Tax Manager

Jason Winchell Photo

Jason Winchell

Senior Manager

Mel Gettelman Photo

Mel Gettelman

Tax Processor

Rachel Kauzlarich Photo

Rachel Kauzlarich

Interntal Events Specialist

Lacie Romanotto Photo

Lacie Romanotto

Accounting Services

Megan Skeens Photo

Megan Skeens

Administrative Assistant, CPA

Kate May Photo

Kate May


Justin Bruno Photo

Justin Bruno

Compliance Manager

Samantha Bugg Photo

Samantha Bugg

Senior Manager

Michelle Davis Photo

Michelle Davis

Tax Manager

Thought Leadership by Sikich LLP