Cooper, Green & Warren LLP

For over 50 years the accountants at CGW have helped thousands of businesses across Canada with their accounting, tax and advisory needs. Whether you are large or small, new or established, CGW has the scale, resources and experience you need. We specialize in the areas of tax, financial accounting, advisory and forensic audits and fraud investigations.

Our services



  • Personal, corporate and estate tax returns
  • Tax planning and compliance
  • HST and payroll deduction calculations and submissions
  • CRA tax audits



Financial Accounting

  • Financial reporting
  • Financial statements
  • Compliance reporting
  • Strategizing for future succession or exit plans
  • Bookkeeping and account management



  • Business consulting
  • Estate planning
  • Financial and property management
  • Eldercare oversight


Forensic Accounting & Investigation

  • Fraud Audit
  • Litigation Support
  • Quantification of damages
  • Recovery of funds
  • Insurance claims
  • Criminal Fraud Reports
  • Corporate training

About us

Cooper, Green & Warren LLP (“CGW”) established in 1977 is a Canadian Chartered Professional Accounting firm with a reputation for providing unsurpassed service and delivering results for our clients. At CGW, we offer a comprehensive range of advisory services to sole proprietors, partnerships, joint ventures, corporations, not-for-profit organizations, start-up companies and enterprises from small to large.

Our clients come from a wide variety of industries, sectors and backgrounds, yet they all share similar wants, they want:

  • opportunities for growth, savings and recovery
  • to work with experienced advisors who understand the business of business
  • services and strategies tailored to their needs.

What Makes Us Different?

  • Provide Bay St service quality with family-run business service.
  • Have limited conflicts to prevent us from being engaged.
  • Have significant scalability if needed.
  • Commit to addressing all phone calls and emails within 24 hours of being received or sooner.
  • Eliminate accounting jargon and make sure you understand what we are doing, why we are doing it, and what it means to you and your company.
  • We focus on small to medium business issues.

Cooper Green & Warren

We understand that in most instances, your priorities are in line with ours; adhere to regulation, protect or recover your assets and grow your business.