John Blanken

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Services

See the whole picture and strategically move forward with the business advisors at Doane Grant Thornton. We’re focused on helping you thrive.

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Assurance

Team up with advisors who look beyond the audit itself to create value for your business and stakeholders.

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Financial reporting and accounting advisory services
You trust your external auditor to deliver not only a high-quality, independent audit of your financial statements but to provide a range of support, including assessing material risks, evaluating internal controls and raising awareness around new and amended accounting standards.
Accounting Standards for Private Enterprises
Get the clear financial picture you need with the accounting standards team at Doane Grant Thornton LLP. Our experts have extensive experience with private enterprises of all sizes in all industries, an in-depth knowledge of today’s accounting standards, and are directly involved in the standard-setting process.
International Financial Reporting Standards
Whether you are already using IFRS or considering a transition to this global framework, Doane Grant Thornton LLP’s accounting standards team is here to help.
Accounting Standards for Not-for-Profit Organizations
From small, community organizations to large, national charities, you can count on Doane Grant Thornton LLP’s accounting standards team for in-depth knowledge and trusted advice.
Public Sector Accounting Standards
Working for a public-sector organization comes with a unique set of requirements for accounting and financial reporting. Doane Grant Thornton LLP’s accounting standards team has the practical, public-sector experience and in-depth knowledge you need.

Tax

Let us provide you with the insightful and strategic advice needed to navigate the rapidly changing tax landscape.

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Tax planning and compliance
Whether you are a private or public organization, your goal is to manage the critical aspects of tax compliance, and achieve the most effective results. At Doane Grant Thornton, we focus on delivering relevant advice, and providing an integrated planning approach to help you fulfill compliance obligations.
Research and development and government incentives
Are you developing innovative processes or products, undertaking experimentation or solving technological problems? If so, you may qualify to claim SR&ED tax credits. This Canadian federal government initiative is designed to encourage and support innovation in Canada. Our R&D professionals are a highly-trained, diverse team of practitioners that are engineers, scientists and specialized accountants.
Indirect tax
Keeping track of changes and developments in GST/HST, Quebec sales tax and other provincial sales taxes across Canada, can be a full-time job. The consequences for failing to adequately manage your organization’s sales tax obligations can be significant - from assessments, to forgone recoveries and cash flow implications, to customer or reputational risk.
US corporate tax
The United States has a very complex and regulated tax environment, that may undergo significant changes. Cross-border tax issues could become even more challenging for Canadian businesses looking for growth and prosperity in the biggest economy in the world.
Cross-border personal tax
In an increasingly flexible world, moving across the border may be more viable for Canadians and Americans; however, relocating may also have complex tax implications.
International tax
While there is great opportunity for businesses looking to expand globally, organizations are under increasing tax scrutiny. Regardless of your company’s size and level of international involvement—whether you’re working abroad, investing, buying and selling, borrowing or manufacturing—doing business beyond Canada’s borders comes with its fair share of tax risks.
Succession & estate planning
Like many private business owners today, you’ve spent your career building and running your business successfully. Now you’re faced with deciding on a successor—a successor who may or may not want your direct involvement and share your vision.
Tax Reporting & Advisory
The financial and tax reporting obligations of public markets and global tax authorities take significant resources and investment to manage. This requires calculating global tax provision estimates under US GAAP, IFRS, and other frameworks, and reconciling this reporting with tax compliance obligations.
Transfer pricing
Recognized as a leader in the transfer pricing community, our award-winning team can help you expand your business beyond borders with confidence.

Related insights:

Tax Alert Impact of tariffs on Canadian businesses

Prime Minister Mark Carney announces support for Canada’s lumber industry citing heavy reliance on US exports and vulnerability to trade policies.

34 min read | 27 Nov 2025

Advisory

A differentiated approach relevant to the unique opportunities and challenges you are faced with today.

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Transactions
Our transactions group takes a client-centric, integrated approach, focused on helping you make and implement the best financial strategies. We offer meaningful, actionable and holistic advice to allow you to create value, manage risks and seize opportunities. It’s what we do best: help great organizations like yours grow and thrive.
Restructuring
We bring a wide range of services to both individuals and businesses – including shareholders, executives, directors, lenders, creditors and other advisors who are dealing with a corporation experiencing financial challenges.
Forensics
Market-driven expertise in investigation, dispute resolution and digital forensics
Cybersecurity
Viruses. Phishing. Malware infections. Malpractice by employees. Espionage. Data ransom and theft. Fraud. Cybercrime is now a leading risk to all businesses.
Consulting
Running a business is challenging and you need advice you can rely on at anytime you need it. Our team dives deep into your issues, looking holistically at your organization to understand your people, processes, and systems needs at the root of your pain points. The intersection of these three things is critical to develop the solutions you need today.
Creditor updates
Updates for creditors, limited partners, investors and shareholders.

Related insights:

Deal Announcement The start of a thriving new season for Victoria grocery chain The Root Cellar

Two BC-based food and beverage businesses committed to serving their local communities

11 Feb 2026

Risk

Running an organization is an ongoing exercise in confronting risk, whether strategic, financial, operational, regulatory or technological.

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Governance, risk and compliance
Effective, risk management—including governance and regulatory compliance—can lead to tangible, long-term business improvements. And be a source of significant competitive advantage.
Internal audit
Organizations thrive when they are constantly innovating, improving or creating new services and products and envisioning new markets and growth opportunities.
Certification – SOX
The corporate governance landscape is challenging at the best of times for public companies and their subsidiaries in Canada, the United States and around the world.
Third party assurance
Naturally, clients and stakeholders want reassurance that there are appropriate controls and safeguards over the data and processes being used to service their business. It’s critical.

Cloud Accounting

By automating standard administrative and accounting work, cloud accounting with Doane Grant Thornton can free up your time to concentrate on more important...

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Indigenous Services

Legacy is not only about honouring the past—it’s also about looking forward and continuing to build upon those values, traditions, and achievements to create...

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ESG and sustainability

Our team is made up of multi-disciplinary, dedicated advisors that can assist your business with a range of ESG considerations, including strategy development,...

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Family Business Services

Our experienced Family Enterprise Advisors (FEAs) can help establish harmony among all stakeholders in your family business by maintaining a neutral position...

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