About Us

Ayoub & Associates, CPA, a Corona CPA firm, is a full-service accounting, tax planning, tax preparation and business advisory firm. We partner with you to identify the goals and objectives you have for your business and work with you to achieve those goals.

We strive to develop a long-term relationship built on trust and mutual respect. By providing financial and operational leadership, guidance and advice we can assist you in increasing your income and improving your quality of life.

Joseph N. Ayoub, CPA, EA

Joseph Ayoub has provided an array of accounting services ranging from general accounting to auditing, consulting and financial analysis, and tax services for over 16 years. Joseph is dedicated to helping his business and individual clients keep more of what they earn by diligently preparing corporate and individual tax returns, sorting out property tax issues and providing comprehensive financial analysis including audits.

His accomplishments in the accounting field include: Senior Auditor with the Accounting firm Arthur Andersen, acting as Assistant Controller for the organizing committee of the World Cup-Soccer, working as a member of a month end close team that closed the books of a $1.8 billion dollar company in five days and working as a Project Manager for database-driven credit system, which enabled management to quantify 2.4 million in annual credits.

Education and Affiliations

• Bachelor of Science in Accounting
• Certified Public Accountant licensed in California.
• Enrolled to Practice before the Internal Revenue Service (EA)

Marcos Sidhum, C.P.A

Marcos obtained his B.S. in Accounting from California State University, Long Beach. He has more than 13 years of public accounting experience providing audit, accounting, tax and consulting services. Marcos served a variety of clients in the areas of manufacturing, real estate, retail industries and Not-for-profit organizations. He is a member of the California Society of Certified Public Accountants and the American Institute of Certified Public Accountants. Marcos also has experience in representing companies and individuals before the Internal Revenue Service and the Franchise Tax board.

Marcos worked in the tax department for McGladrey as a Senior, Assurance Manager for Deloitte & Touché handling publicly traded companies and Certified Audit Manager for a National CPA Firm handling audits for Employee Benefits Plans.

Mariam Girgis, MBA

Mariam Girgis has worked in the accounting field for over 6 years and has provided accounting services such as general accounting, financial analysis, and tax services. Mariam prides her self in her ability to cater to the needs of the diverse group of clients that she has served.

Her accomplishments in the business field include: Managing a payroll department that served hundreds of clients, acting as CFO of a non-profit organization that is based in the USA to serve underprivileged youth in Ethiopia, and studying abroad at Oxford University where she studied International Economics.

Education

• Bachelor of Art in Business Economics from University of California, Riverside
• MBA with a concentration in management from California Baptist University