Grenning & Co. is a full-service, one-stop-shop for all your accounting, bookkeeping, payroll, and taxation needs. With professionalism and accuracy at the core of our bookkeeping services, we incorporate our broad understanding of Ontario industries to give you the accurate information you require. Our priority is to provide you consistent and effective accounting services, with your company’s success deeply engrained in all that we do. Our services include:


As a business owner, you’ve got a lot on your plate. Being able to trust the people handling your company’s financials lets you focus on what matters most – running your company. Below is an overview of the bookkeeping services we provide:

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Employees are the lifeblood of any successful company and payroll preparation can be an overwhelming weekly task. Many small-business firms outsource their payroll function as an efficient alternative to having an internal payroll processor.

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Corporate Tax Services

Oftentimes, small-to-medium sized businesses can’t afford their own accounting department. That’s where we come in. Our team functions as your personal accountant, providing you accurate record-keeping and solutions to your financial inquiries. Grenning & Co. offers comprehensive corporate tax filing services for many different sized companies, including non-profits and private start-ups.

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Personal Tax Services

Tax season doesn’t have to be the most stressful time of the year. Our company offers a full range of advisory and technical services designed to resolve tax situations of all complexity levels.

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Why work with us?

At Grenning & Co., we consistently strive to achieve the best results for our clients, every time.