Keith Hamasaki, CPA


As a Certified Public Accountant, Keith Hamasaki is passionate about simplifying the complex and bringing together a collaborative team that can help build a better future. With nearly two decades of experience advising clients on technical matters and improving accounting processes, Keith specializes in identifying key performance indicators through business intelligence and technical audit services to emerging and middle-market companies.

As someone who has consistently helped clients overcome challenges, Keith has developed an expertise in a variety of industries, including manufacturing and distribution, consumer products, real estate, private equity funds, technology, digital marketing, professional services, not-for-profit organizations, and employee benefit plans. Further, Keith leads the firm’s KROST Business Intelligence practice that transforms a company’s accounting infrastructure with key performance metrics.

Keith is recognized as a thought leader and industry speaker on topics of business and accounting issues. He has spoken for organizations and educational institutions such as CalCPA, California State University Northridge, Loyola Marymount University, Glendale Community College, and Pasadena City College. Further, Keith regularly instructs continuing education courses on audit methodology and analytical review procedures for professional staff. As an active member of the community, Keith has been a recurring Selection Committee Member for the Los Angeles Business Journal’s CFO of the Year Awards and is on the Professional Advisory Board for Accounting Curriculum at Pasadena City College. Keith’s community efforts also include his recent installation as a Board of Governor for the Asian Hall of Fame Organization in Los Angeles to educate the public on Asian contributions to society and as Treasurer of the California State University, Northridge Nazarian Business Alumni Chapter.


  • Bachelor of Science in Accountancy, California State University, Northridge
  • Bachelor of Science in Business Administration with Emphasis in Business Law, California State University, Northridge

Professional Affiliations

  • Member of American Institute of Certified Public Accountants (AICPA) 
  • Member of California Society of Certified Public Accountants (CalCPA)
  • Member of Asian Pacific CPA Association

Extracurricular Activities

  • CalCPA, Board of Trustees – Los Angeles (Present)
  • Asian Hall of Fame Organization, Board of Governor (Present)
  • Treasurer of California State University, Northridge Nazarian Business Alumni Association (Present)
  • Professional Advisory Board for Accounting Curriculum at Pasadena City College (2017 – Present)
  • CalCPA, Officer – Los Angeles (2017 – 2024)
  • CalCPA, Board of Directors – Los Angeles (2015 – 2024)
  • CalCPA, President – Los Angeles (2022 – 2023)
  • Professional Advisory Board for Accounting Curriculum at Glendale Community College (2018 – 2022)
  • Asian Pacific CPA Association, Board Member (2018 – 2020)
  • Urban Land Institute, Los Angeles Strategic Partnership Committee (2016 – 2018)
  • Los Angeles Business Journal, CFO of the Year Award Selection Committee Member (2016, 2017, 2018, and 2023)
  • Attendee of CalCPA Leadership Institute (2013 – 2014)


  • AICPA Cybersecurity Advisory Services
  • AICPA + CIMA Data Analysis Fundamentals

Cybersecurity Advisory Services Certificate

Keith's Thought Leadership

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