About US

Who We Are

RP&B CPAs is a premier, full-service accounting firm located in the Inland Empire. We have been serving clients for over 35 years in the Inland Empire, Southern California and throughout the United States.

We specialize in financial statement compilations, reviews, audits and tax compliance services, tax/business planning and ESOP consultation in a variety of industries, including:

  • Construction
  • Manufacturing
  • Distribution
  • Transportation
  • Professional Services
  • Consumer Services
  • Nonprofits
  • Related Privately-Held Businesses

Our Shareholders

Michael J. Kouyoumdjian, CPA

Michael J. Kouyoumdjian, CPA

Managing Shareholder

Cristen D. Stier, CPA, MBA

Cristen D. Stier, CPA, MBA

Shareholder, Accounting & Auditing

Michael Zermeño, CPA

Michael Zermeño, CPA

Shareholder, Accounting & Auditing

Fernando Ayala, CPA

Fernando Ayala, CPA

Shareholder, Tax & Compliance

Contact Us