Our Firm


Our Focus

To deliver a personalized approach with practical advice to give you peace of mind.

Our Location

Our firm is located along the Barrie waterfront at 11 Victoria Street. We provide service to clients located in Barrie & the surrounding Central Ontario region as well as those down the Hwy 400 corridor to Toronto.

Our People

Collectively, our current staff has over 90 years of experience in public practice. As a firm, we bring that breadth of knowledge and wisdom to our clients each and every day.

Our Clients

We work with entrepreneurial individuals and corporations that represent a diverse cross-section of industries.

Visit our Portfolio page to get a flavour of the industries that our client base works in.


Client Testimonials
  • " I would like to take this opportunity to recognize the great work that the team at Michael Kostrich Chartered Accountant Professional Corporation has been doing for us at Flooring By Design. We are a... "

    Trevor Kadlec - President - Flooring by Design

  • " Mike’s firm have been my “go to” source for several years – they are an amazing resource for a small company like mine. I have referred several of my clients to this office for year-end filings and ... "

    Jaime Grant - Grant Bookkeeping Services

  • " We have been with Mike’s firm since our inception 6 years ago. His business advice and guidance have allowed us to focus on making better decisions and develop strategic business plans to hit our tar... "

    David Black - President - Call Point Canada Ltd.

  • " We have used Mike’s firm for the past 6 years for our corporate and personal tax planning and filing. Whether it involves the development of financial strategy for our corporate needs or helping reduc... "

    Rod Charlton - President | Pioneer Development Corporation