Best Accountants in Ontario

Why These Accountants?

Our goal is to connect people with the best local experts. We scored Ontario Accountants on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.

Reviewed Curated Top Picks 41 27 6

Our Selection Criteria:

  • 1. Availability

    Consistently approachable and responsive, so customers never feel ignored.

  • 2. Qualifications

    Building customer confidence with licensing, accreditations, and awards.

  • 3. Reputation

    A history of delighted customers and outstanding service.

  • 4. Experience

    Masters of their craft, based on years of practical experience and education.

  • 5. Professionalism

    Providing service with honesty, reliability, and respect.

Read more about our selection process

Fan & Li LLP, CPA

Fan & Li LLP, CPA is an accounting firm with more than a decade of experience serving clients in Diamond Bar and the surrounding area, which includes all of eastern Los Angeles County. The company has a full-service accounting department for businesses generating between $1 million and $25 million in sales annually. The suite of services includes financial analysis, a full-charge bookkeeper, CPA controller, and chief financial officer. It also provides bookkeeping services for companies that employ as few as five employees. Other services include IRS resolution and audit support, nonprofit taxation, correspondence with federal authorities, and reconciliation of vendor statements.

Diamond Bar, CA 91765


Howard Li, CPA

Howard Li, CPA is a certified public accountant serving individuals and businesses in and around the City of Industry. Li earned his accounting degree from California State University-Long Beach before attaining his teaching credential through the University of California-Los Angeles (UCLA). He possesses more than two decades of professional training and experience, and his areas of specialization include but are not limited to identification of audit red flags, implementation and preparation of QuickBooks, bank reconciliations, and the provision of both full and partial payroll services. Li also has the capability of representing clients before the IRS and handling preemptive audits to avoid unwanted attention from federal and state tax authorities.

City Of Industry, CA 91748


Raymond Regalado, CPA

Raymond Regalado, CPA launched his Ontario-based accounting firm in 1984, and he has more than 30 years of experience serving business and individual taxpayers in the Los Angeles area. Regalado provides support for a variety of areas, including financial planning, business valuations, entity structuring, and sales/property tax/license renewals. Clients have utilized his services for estate and trust planning as well as QuickBooks implementation and training. Since 1992, Regalado has partnered with fellow accountant Andraea Regalado-Cardenas, who also serves as office manager. She earned her degree from California State University-San Bernardino in 2000. The pair provides accounting services to both English- and Spanish-speaking clientele.

Ontario, CA 91762


ZD Consulting Group

ZD Consulting Group is a premier accounting firm in the City of Industry. It serves businesses and individuals both in the city and surrounding communities of the San Gabriel Valley region in Los Angeles County. It assists clients in the selection, setup, and implementation of accounting software as well as full-charge bookkeeping services. Clients buying or selling businesses have utilized ZD for valuations. Many of its clients rely on it for cash flow and budgeting analysis as well. Other provisions include tax services such as audit representation or help with liens, levies, and wage garnishments. ZD Consulting also offers a range of payroll services from partial to full.

City Of Industry, CA 91748


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