About Ayoub & Associates Beyond Your business Parnter!

Ayoub Sidhum & Co., CPA firm is an elite Corona CPA firm, is a full-service accounting, tax planning, tax preparation, audits 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 are expanding our services to Riverside, Orange County, Los Angeles, San Bernardino, San Diego and beyond.

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.

We invite you to contact us and learn how we can help your organization grow and thrive.

We are Commitment to Excellence


Ayoub Sidhum & Co., CPA firm was founded in 2003 in Torance, CA and expanded to the Corona area to provide public accounting services to small to medium size businesses throughout southern California region.

The company was built on personal relationships, extraordinary client service with combined 30 years of experience. We believe your success is our success, so we thrive to exceed your expectations.

Our Commitment to you


We are beyond your business partner. We work with you to meet your goals with high standards of excellence and professionalism. We believe in the value of communication and hands-on approach with our clients. Our commitment to you is to always be available.

Modern Technology in a Traditional World


To provide you with the best accounting practices, Ayoub & Associates is investing time and resources in professional continuing education, latest technology and extensive tax and audit seminars.

our Services include:


Our Offices

Corona Office
4218 Green River Rd, Corona, CA 92880
Tel: (951) 273-9090
Fax: (951) 848-0660

Torrance Office

3655 Torrance Blvd. 3rd Floor
Torrance, CA 90503

Tel: (310) 792-3700
Fax: (310) 362-0429

Irvine Office
7700 Irvine Center Drive, 8th Flr
Irvine, CA 92618

Tel: (949) 484-9302