Welcome to RBW. Proudly serving Niagara.





Office Hours:

9.00am to 5.00pm

About Us

Years of Experience

Known for our Accounting Services

We love numbers and spreadsheets! Our partners alone have decades of experience helping Niagara businesses navigate the increasingly complex financial landscape. Whether you operate a construction company, a medical office, not for profit organization, legal practice or are a small business, RBW provides personalized accounting services to support your success and plan for future financial growth.

Root Bissonnette Walker LLP is a professional accounting firm servicing companies, non-profit organizations and individuals including accounting, audit, advisory, tax compliance and tax planning needs.

We work to exceed expectations with a personalized approach, highly responsive team and reasonable costs for services. We provide regular and candid communication throughout the year which is appreciated by our clients.

As business owners that have lived in Niagara for many decades, we understand the unique challenges and opportunities available and can advise you with experience and understanding.

Our Process

We Provide Finance and Tax Solutions with Full-Service Expertise

Contact Us

Call or email and let us know your business needs.

Book a Consultation

Our team will set up an initial call or meeting to discuss business needs. Our on-boarding process is pain free.

Dedicated Account Support

We pair you with an account lead and whether your accounts are in meticulous order or a shoe box we are here for you.

Why Choose RBW?

We love numbers and spreadsheets – crunching numbers is our cardio! We are dedicated to supporting our community and participate in as much as we can. We also work closely with Brock University to mentor co-op accounting students and offer graduates experience and opportunities once they complete their education. Our team is invested in staying current and up to date on all things business and tax to ensure best practices are shared with our clients. We take pride in servicing clients from small, medium to large scale businesses, including solo entrepreneurs and not for for profit organizations. We take great pleasure in supporting the success of our clients and their businesses and value our long-lasting relationships with them.

The RBW Leadership Team

We believe in establishing long relationships with our clients, with a customized approach. We will collaborate with other professionals in your life including bankers, lawyers and financial planners to ensure a seamless approach to your tax, financial and legal needs.

Ryan Bissonnette CPA, CA


Michael Root CPA, CA


Andrew Walker CPA, CA


Ray Tisi CPA, CA

Senior Advisor