Top 100 Business Consulting Companies in Ontario
The Best of December 2025Looking for a top consulting firm in Ontario?
Consulting firms provide in-depth knowledge and understanding in relation to the client’s industry, technology, and processes. Having this kind of business partner empowers companies to make the best decisions for the business. They provide technical and corporate assistance, helping you resolve your challenges regardless of the industry you’re in.
Consulting firms provide a wide range of services, from creating business strategies to solidifying operational processes. Take your company to the next level by partnering with a firm today. Their knowledge and expertise are valuable assets for every business.
To assist you in your search for a partner, we’ve compiled this list of the top consulting companies in Ontario. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Ontario Business Consulting Firms
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391$5,000+10 - 49 employeesKitchener, CanadaAscend Analytics is a Kitchener, Canada-based data analytics company. The small team offers BI & big data consulting & SI and business consulting. The agency was established in 2020.Read More
Industries
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392UndisclosedFreelancer employeesSt. Thomas, CanadaThe DIY Strategic Plan Program is a Corporate Training & Coaching company based in St. Thomas, Canada. The team focuses on Corporate Training & Coaching and Business Consulting.Read More
Industries
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393$5,000+2 - 9 employeesMississauga, CanadaBusiness Consulting company WorldWinn Consulting specializes in Business Consulting and Marketing Strategy. They are located in Mississauga, Canada.Read More
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394Undisclosed10 - 49 employeesPerth, CanadaSmall Accounting company Kelly Huibers McNeely Professional Corporation, is in Perth, Canada and Carleton Place, Canada. The team provides Accounting and Business Consulting.Read More
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395Undisclosed10 - 49 employeesKemptville, CanadaHeadquartered in Kemptville, Canada and Ottawa, Canada, WGP Professional Corporation Chartered Accountants is a small Accounting company. Their services include Accounting and Business Consulting.Read More
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396Undisclosed10 - 49 employeesCambridge, CanadaDrouillard Sambrook Kingston LLP (DSK) is an Accounting company founded in 2012. The team offers Accounting and Business Consulting and is based in Cambridge, Canada and Kitchener, Canada.Read More
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397Undisclosed10 - 49 employeesToronto, CanadaManaging Matters Inc. Is a Marketing Strategy company. Based in Toronto, Canada, their team offers Marketing Strategy and Event Marketing.Read More
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398Undisclosed10 - 49 employeesMarkham, CanadaS2H Business Information Systems is a small CRM consulting and SI company. They focus on CRM consulting and SI and ERP consulting and SI and were launched in 2001.Read More
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399Undisclosed10 - 49 employeesToronto, CanadaINTECH Risk Management Inc is a Toronto, Canada-based Business Consulting company. They offer Business Consulting and Insurance Services & Brokers and were established in 1976.Read More
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400UndisclosedFreelancer employeesOttawa, CanadaJennifer Walker - Certified Business Alignment Coach is a Business Consulting and Corporate Training & Coaching company. Their team focuses on Business Consulting.Read More
Industries
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401$1,000+2 - 9 employeesBrantford, CanadaMementia is a website development company. They are in Carlisle, Pennsylvania and have a small team. The company offers web development, e-commerce development, application testing, business consulting, and more.Read More
Industries
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402$5,000+50 - 249 employeesMarkham, CanadaIllumiti is a big data analytics company. Their team is headquartered in Markham, Canada and Englewood, Colorado and offers BI & big data consulting & SI and IT managed services.Read More
Industries
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403Undisclosed50 - 249 employeesGuelph, CanadaRLB LLP is an Accounting company. The Guelph, Canada-based firm was launched in 1951. Their team specializes in Accounting and Business Consulting.Read More
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404Undisclosed50 - 249 employeesOttawa, CanadaLogan Katz LLP is an Accounting company. Headquartered in Ottawa, Canada and Toronto, Canada, the agency was founded in 1994. Their services include Accounting and Business Consulting.Read More
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405Undisclosed50 - 249 employeesToronto, CanadaVTRAC Consulting Corporation is a cloud consulting & SI company headquartered in Toronto, Canada. They provide cloud consulting & SI and Artificial Intelligence.Read More
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406Undisclosed50 - 249 employeesToronto, CanadaAvison Young Canada is a midsize Business Valuation Services company in Toronto, Canada. The team offers Business Valuation Services and Business Consulting.Read More
Industries
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407Undisclosed50 - 249 employeesToronto, CanadaLocated in Toronto, Canada, XMC Sponsorship + Experiential Marketing is a branding firm. Their services include Branding and Business Consulting.Read More
Industries
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408Undisclosed50 - 249 employeesOttawa, CanadaOGGN Inc. Is an Ottawa, Canada-based cloud consulting & SI company. Founded in 2017, the team specializes in cloud consulting & SI and Artificial Intelligence.Read More
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409$1,000+Freelancer employeesRichmond Hill, CanadaRead More
Ivan Digital Service is a web design agency. They are in Richmond Hill, Canada and have a small team. Their team offers web design, social media marketing, search engine optimization, pay per click, and more.
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410Undisclosed250 - 999 employeesWaterloo, CanadaRead More
Midsize accounting company Baker Tilly Canada, is based in Waterloo, Canada. The team specializes in accounting and business consulting.
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411Undisclosed10 - 49 employeesMississauga, CanadaMintex Tech is an IT staff augmentation company located in Edison, New Jersey and Ahmedabad, India. They offer IT staff augmentation and HR Consulting and were founded in 2003.Read More
Industries
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412$10,000+10 - 49 employeesToronto, CanadaSynergo Group is a small Toronto, Canada-based AI company. Founded in 2005, the team offers Artificial Intelligence, BI & big data consulting & SI, IT staff augmentation, cloud consulting & SI, and more.Read More
Clients
Caseware InternationalIndustries
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413$250,000+2 - 9 employeesToronto, CanadaDecision by Design Consulting is a Business Consulting company. Launched in 2012, the team provides Business Consulting and IT strategy consulting. The firm is based in Toronto, Canada.Read More
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414Undisclosed2 - 9 employeesToronto, CanadaLaunched in 1998, Realize Solutions is a Business Consulting company. Their team focuses on Business Consulting and Corporate Training & Coaching.Read More
Industries
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415Undisclosed50 - 249 employeesMississauga, CanadaMidsize ERP consulting and SI company ArcherPoint Inc., is based in Lawrenceville, Georgia and Mississauga, Canada. Their services include ERP consulting and SI and Custom Software Development.Read More
Industries
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416Undisclosed2 - 9 employeesMarkham, CanadaIn Markham, Canada and Mississauga, Canada, AMX Accounting and Taxation Services Ltd. Is a small Accounting company. The team offers Accounting and Business Consulting.Read More
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417Undisclosed2 - 9 employeesOttawa, CanadaAndrew Shouldice CPA Professional Corporation is a small Ottawa, Canada-based Accounting company. Their services include Accounting and Business Consulting.Read More
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418Undisclosed2 - 9 employeesBurlington, CanadaAccounting company Mira Ralevic, CPA, CGA was founded in 1998. The team provides Accounting and Business Consulting.Read More
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419Undisclosed2 - 9 employeesOttawa, CanadaBold Move Marketing, a branding agency, is located in Ottawa, Canada. Founded in 2021, the team provides Branding and Market Research.Read More
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420Undisclosed10 - 49 employeesToronto, CanadaAccounting company Gary Booth Chartered Accountants is located in Toronto, Canada. They provide Accounting and Business Consulting and were launched in 1994.Read More
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