5 - 120 San Antonio Drive, Hamilton, Ontario L9C 5N2 • 905-389-2670 • Fax 905-389-4642

About Us

DBK Accounting is ready to help your small businesses, charity or professional practice with accounting services and consulting. We pledge to do this with honesty, integrity and professionalism.


We offer clients the benefit of extensive accounting, tax and general business expertise. Our cumulative experience of more than 60 years as accounting professionals is a real advantage for our clients.


We are committed to providing the highest standards of accounting and auditing services to our clients. Financial statements are prepared on a timely basis and are presented professionally in an easy to understand format. We respond quickly to your inquiries and provide thoughtful, insightful advice to suit your unique needs.

Before you make a major decision we can show you the financial and tax implications of the contemplated transaction.

Meet the team

Jonathan Kooiman, CPA CA LPA
CEO – Partner


Jonathan graduated with a BA honours with distinction from Redeemer University in 2003 and obtained his CA designation in 2005 from the Institute of Chartered Accountants of Ontario.

Before partnering with David, Jonathan gathered over 16 years of experience working with hundreds of owner managed businesses assisting them in assurance, tax planning and financial advisory services.  During this time, Jonathan also inspired the next generation as an associate professor at Redeemer University, teaching tax, auditing and accounting.

Jonathan has built his practice by meeting entrepreneurs where they are at. From start-ups in need of a business plan and financing to well established organizations focused on keeping the momentum going or looking to transition ownership to the next generation – Jonathan has the skills and experience to deliver.

Collaborating with entrepreneurs to meet their professional and personal goals is what Jonathan does best. Utilizing his professional skills and experience in assurance, tax planning, government compliance, performance measurement and operational benchmarks, Jonathan helps clients leverage both risks and opportunities. Although it is important for all Canadians to pay their fair share of taxes, Jonathan has gathered many experiences reducing the tax burden so that clients can invest more in their businesses and in their personal goals.

Jonathan is no stranger to working with charities and not-for-profits.  Serving many of these organizations over his career, both as an auditor and Board member, Jonathan adds value to organization’s goals in the area of financial systems development and maintenance, organization asset protection policies, development and monitoring key metrics and of course, auditing, accounting and reporting requirements to donors, members and the public at large.

Jonathan lives in Milton with his wife Laura and their five children. Outdoor activities and travel occupy the family’s leisure time.

Amy Stutsman

Amy Stutsman CPA CGA LPA
COO – Partner


Amy has over fifteen years of experience in assisting not-for-profit organizations and privately held businesses in achieving their business and financial goals. She has a proven track record of collaboratively working with clients to identify the specific issues and goals facing each of them. Combining listening with understanding, Amy advocates tailored solutions that are converted into actions for implementation.

Technologically proficient, Amy enjoys helping clients with training on accounting software.

Amy obtained her Bachelor of Commerce degree from Athabasca University in 2008 and her Chartered Professional Accountant designation in 2011.

Outside of the office, Amy, her husband and their three children enjoy being involved at their local church, volunteering at Camp of the Woods, and doing family camping trips.

Dave den Boer

David Den Boer CPA CA LPA
Partner – retired


David brings to the practice more than 40 years as a chartered accountant. For nine years he worked as a manager for a national accounting firm. During this time he was exposed to a broad spectrum of businesses and organizations.

From 1987-1994 he served as the Director of Financial Services for the Ontario Alliance of Christian Schools, a not-for-profit organization providing educational and financial services to its 75 member schools across Ontario.

In September 1994 he opened his own public accounting office specializing in accounting, auditing, consulting and taxation services for small businesses and not-for-profit organizations. His practice became the foundation of DBK Accounting in 2016.

Through the years David has been a Board member on many charities including churches, a Christian school, and various other ministries.

David and his wife Marian have lived in Hamilton for the past 37 years. They attend Flamborough Christian Fellowship in Millgrove. They have six adult children and 11 grandchildren. Their personal time is taken up with visiting family, volunteering at their church and other ministries, and enjoying outdoor activities.

Chester Stutsman
Accounting and Assurance Manager

Susan McRae
Personal Tax Manager

Jennifer Matthews
Senior Accountant

Harman Dhaliwal
Staff Accountant

Kamal Dhillon
Staff Accountant

Nicolai Gonzaga
Staff Accountant

Stefan Grigoras
Staff Accountant

Katie Cox
Office Administrator

Sarah Irwin
Administrative Assistant