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Team

Ted Klimczak, CPA

Ted Klimczak

In 1987, Ted Klimczak started a CPA firm with two clients and a dream. In 1991, he greatly expanded his practice through the merger with the Harry Donovan CPA firm and formed Donovan, Klimczak & Company (DKC). Under Ted’s leadership, DKC now has five offices located in Hudson, North Canton, Louisville and Strongsville, in addition to the flagship Fairlawn office.

DKC specializes in small business and individual income tax preparation, accounting and consulting services. Ted works with many multi-generational families, some currently in their third generation. He strives for developing relationships with clients where he can help them achieve their goals, while guiding them to survive and prosper through the changing times and to preserve their family wealth. Through building long-term relationships and providing quality service and advice, DKC has become a diverse, growing and highly respected CPA firm in its 30th year.

Ted is a former Marine, having served our country for 6 years following his graduation from John Carroll University.

He and his wife Janet have been married for 45 years and have 6 sons and 14 grandchildren.

Ted is a member of the following associations and organizations:

  • American Institute of Certified Public Accountants
  • Ohio Society of Certified Public Accountants
  • American Society of Pension Professionals & Actuaries
  • Subcontractors Association of Northeast Ohio (Board Member)
  • Rotary Club of Fairlawn (Past President)
  • Fairlawn Chamber of Commerce (Past President)



Keith Papa, CPA

Keith Papa

Keith manages the Fairlawn and Strongsville Offices at Donovan, Klimczak and Company, with over 25 years of experience. Keith joined DKC in January 2014 as a senior accountant. He was named a Director of DKC effective July 1, 2021.

Prior to DKC, Keith worked at Edward C. Hawkins & Co, Ltd., a public accounting firm in downtown Cleveland, from August of 1995 through December 2013.

During his career, Keith has provided accounting, tax, and consulting services to a wide range of business clients. This work has included preparation of compiled, reviewed, and audited financial statements and tax returns for clients in the manufacturing, construction, distribution, service, and retail industries with annual revenues ranging from $1 million to $65 million, as well as for employee benefit plans and non-profit clients. In addition, he has provided tax preparation and planning for individuals, estates, and trusts.

Keith specializes in tax return preparation and planning for high net income/net worth individuals, expatriate individuals, trusts, and estates, as well as accounting and tax services for businesses in the construction contractor industry.

Keith graduated from John Carroll University with a Bachelor of Science in Accounting and has been a Certified Public Accountant since September 1997.

Keith and his wife, Jo Ann of twenty-two years live in Brunswick, Ohio with their three daughters.

Outside of work, Keith enjoys spending time with his family, hiking, and golf.

Keith is a member of the following associations and organizations: 

  • American Institute of Certified Public Accountants (AICPA) 
  • Ohio Society of Certified Public Accountants (OSCPA)
  • Fairlawn Chamber of Commerce
  • Strongsville Chamber of Commerce




David Mathena, CPA

David Mathena

David manages the Canton and Louisville offices at Donovan, Klimczak and Company (DKC). He joined DKC in 2006, after beginning his career with a regional CPA firm in the Cleveland area.  He was named a Director of DKC effective July 1, 2021.

David works with small business owners in a variety of industries, with a specialization in oil & gas. He also serves many not-for-profit organizations.

David graduated from Kent State University with a Bachelor's in Business Administration.  

He also serves as the Treasurer for a Christian youth ministry, with an outreach in Kenya, Africa.

David resides in Munroe Falls with his wife Karen and their three children.

He enjoys woodworking in his spare time.

David is a member of the following associations and organizations:

  • American Institute of Certified Public Accountants 
  • Ohio Society of Certified Public Accountants


Mark Chapman, CPA, MT, QPA

Mark Chapman

Mark is the Partner in charge of the tax department at Donovan, Klimczak and Company, with over 35 years of experience.  

He is also a QPA- Qualified Plan Administrator 

Mark also provides yearly Continuing Education Seminars for business professionals, such as, Attorneys, Financial Advisors and Insurance Professionals. 

Prior to joining DKC, Mark worked with one other CPA firm providing tax services to clients. Mark also taught accounting at a local university for two years.

Mark attended the University of Akron and obtained both his bachelor's degree in Accounting and master's degree in Taxation.

Mark lives in Stow with his wife Nadine.

Mark is a member of the following associations and organizations:

  • Ohio Society of Certified Public Accountants
  •  American Society of Pension Professionals.




David Komer, CPA

David Komer

David manages the accounting and auditing department and the quality control at Donovan, Klimczak and Company (DKC), with over 37 years of experience in public accounting.

Prior to joining DKC in 2007, David was a manager with the national accounting firm, RSM McGladrey, Inc., where he worked for over 12 years.

Along with expertise in construction and real estate, David specializes in small business, pension and non-profit organizations engagements.

David graduated magna cum laude from the University of Akron with his Bachelor's degree in Accounting. 

He has enjoyed working with the Boy Scouts for over 20 years. David was active in his church's finance and administrative council for over 15 years. 

He resides in Macedonia with his wife Karen. They are the proud parents of two sons and grandparents of three.

Dave enjoys reading, exercising and has numerous hobbies.

David is a member of the following associations and organizations: 

  • American Institute of Certified Public Accountants 
  • Ohio Society of Certified Public Accountants


Rex Edwards, CPA

Rex Edwards

Rex Edwards began working in 1972 with his family’s Public Accounting firm in Louisville, after graduating from Wittenberg University with degrees in Accounting and Business Administration.  Rex became a CPA in 1982. 

After company founder Tom Edwards III retired in 1986, Rex partnered with his brother Tom IV until 2000. Rex was the sole owner of the firm until joining the Donovan Klimczak group in January 2015.

Rex specializes in estate and trust services.

Rex and his wife Donna reside in Louisville.  Rex’s hobbies include golfing and fishing.




Mark Wirkus, CPA

Mark Wirkus

Mark Wirkus joined DKC-Warfield Company in November 2020 as a senior manager. Mark’s thirty-seven-year accounting career includes nine years at Price Waterhouse, an international accounting firm as an audit manager, providing audit services to large privately held companies, publicly traded companies, not-for-profit entities, and a wide range of retirement plans.

Most recently, Mark spent twenty-four years with a local CPA firm as its director of accounting and quality control, serving closely held businesses in assurance services, accounting and tax matters and general business consulting.

Mark graduated from Akron University with a Bachelor of Science in Accounting and has been a Certified Public Accountant for thirty-four years.

Mark specializes in providing account and attest services for privately held businesses including audits, reviews and compiled financial statements and audits of retirement plan audits.

Mark and his wife, Jan of thirty-seven years live in Broadview Heights where they raised their four children.

Outside of work, Mark enjoys spending time with his family and friends participating in outdoor activities including fishing, boating, hiking, and traveling. He also enjoys participating in and watching sporting events as time permits.

Mark is a member of the following associations and organizations:

  • American Institute of Certified Public Accountants (AICPA)
  • Ohio Society of Certified Public Accountants (OSCPA).


Richard K. Warfield, CPA

Rich Warfield

Richard Warfield, a partner in DKC-Warfield & Company, founded Warfield & Company CPAs Ltd., a tax, accounting and consulting firm in 2006. Rich specializes in working with small businesses and high net worth individuals. Warfield & Company CPAs merged with the Fairlawn based CPA firm Donovan, Klimczak & Company on January 1, 2017 and the Hudson firm is now known as DKC-Warfield & Company.

Rich's thirty-five years of professional experience include 3 years in New Jersey and New York with Grant Thornton, an international accounting firm, where he solidified his extensive tax knowledge serving large and closely held companies. Locally Rich has also been a tax director at Saltz, Shamis and Goldfarb (SS&G) in Akron and formerly was a partner in the Mayfield Heights firm, Zucker & Warfield, Inc., where he developed a not-for-profit practice serving labor unions and charitable organizations.

Today, Mr. Warfield's clients are primarily closely held companies, not-for-profit organizations and high net worth individuals. Two of the most valuable services Rich frequently provides for his closely held business clients are year-end tax planning and ongoing consulting services for growing their respective businesses.

Rich holds a Bachelor's degree in Business Administration from Kent State University and is licensed to practice as a Certified Public Accountant in Ohio and New Jersey. Rich, his wife Barb and their two children Chris and Emily, reside in Hudson and they enjoy golf, ice hockey, volley ball and traveling.

Mr. Warfield is a member of the following associations and organizations:

  • American Institute of Certified Public Accountants
  • Ohio Society of Certified Public Accountants
  • Rotary Club of Hudson, Past President and current Board Member
  • Hudson Rotary Foundation, Current Board Member
  • Hudson Community Foundation, Former Board Member
  • Northwest Bank Advisory Board Member
  • Hudson Chamber of Commerce, Past President
  • Lake Forest Country Club, Former Treasurer and Former Board Member
  • Lifeworks Leadership, Former Board Member

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Our Locations

Fairlawn Office

484 South Miller Rd. Suite 100
Fairlawn, OH 44333
Phone: 330-836-9331
Fax: 330-869-9991

Hudson Office

581 Boston Mills Rd. #100
Hudson, Ohio 44236
Phone: 330-655-1395
Fax: 330-655-1398

Canton Office

6263 Frank Ave NW
North Canton, Ohio 44720
Phone: 330-493-0511
Fax: 330-493-7072

Louisville Office

419 East Main Street
Louisville, OH 44641
Phone: 330-875-5539
Fax: 330-875-1875

Strongsville Office

13550 Falling Water Road, Suite 201
Strongsville, OH 44136
Phone: 440-238-5006
Fax: 440-238-6439

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