The Calibre LLP  team of Chartered Professional Accountants, tax specialists, professional accounting students, and bookkeepers provide accounting and advisory services for large to small businesses.


Accounting services for clients in Guelph and across Canada

As a full service accounting firm, our team of professionals provide assistance to a variety of businesses.
Our mission is to be more than an accounting checkbox for your business!

Arlene Campbell

Partner, CPA, CA

Arlene has over 30 years of accounting experience working with clients of all sizes, ranging from large corporations to smaller owner managed businesses. She enjoys what she does and is passionate about helping clients.


Derek K. Stoltz

Partner, CPA, CA

Derek has 15+ years of accounting experience with businesses of varying sizes. He is a strategic thinker with a focus on the details. Derek enjoys working with clients and helping them succeed.


Michael Weller

Partner, CPA, CA, CFA

Michael has over 15+ years of accounting experience working with owners from large to small business. He is interested in learning more about your business and planning how to help. 

Give your business an advantage with Calibre.

Our team is ready to hear your story and learn about your business.