Back to top

About Us

Background

Costanzo & Pepper, Certified Public Accountants is a public accounting firm located in Pasadena, California. Our partners and accountants have been working together since 1983. Although we have clients located throughout the country, most of our clients are situated in Southern California, with the largest concentration being in Los Angeles and Orange County.

We provide services to a wide range of clients. Their businesses include manufacturers, distributors, contractors, real estate developers, investors, professionals, entertainers and more. These clients have revenue ranging from relatively small amounts to amounts in excess of thirty million dollars per year. Our expertise ranges from basic tax management and accounting services to more in-depth services such as financial statement preparation and financial planning.

Our Mission

Our mission is to help clients maintain financial viability in the present while taking a proactive approach to achieve future goals. This requires open communication to reach an understanding of our clients’ needs, thorough research, and detailed analysis. Our firm is dedicated to meeting these goals with high standards of excellence and professionalism.

Our Team

Ralph A. Costanzo, CPA

ralph@costanzopepper.com 626-796-2271

Mr. Costanzo graduated with a Bachelor of Science Degree in business administration with an emphasis in accounting from California State University, Northridge in 1972. He became certified to practice as a Certified Public Accountant in the State of California in January, 1978 and is currently a member of the American Institute of Certified Public Accountants and the California Society of Certified Public Accountants. Mr. Costanzo originally obtained a position with the accounting firm of Trapani, LaVine & Company in 1974, becoming a partner in 1978.

Having practiced accounting in excess of 30 years, Mr. Costanzo has a strong background in all phases of the profession. He has the ability to quickly recognize the accounting and management needs of his clients and to put into place the proper accounting and other systems necessary to facilitate the operations of their business.

Gary F. Pepper, CPA

gary@costanzopepper.com 626-796-2271

Mr. Pepper graduated with a Bachelor of Science Degree in business administration with an emphasis in accounting from California State University, Northridge in 1977. He became certified to practice as a Certified Public Accountant in the State of California in March, 1979. In 1983, Mr. Pepper became a partner in the accounting firm of Costanzo, Mueller & Company, Certified Public Accountants which became Costanzo & Pepper in 1991. He is a member of the American Institute of Certified Public Accountants and the California Society of Certified Public Accountants

Mr. Pepper has a solid background in accounting and auditing with special emphasis related to computer systems and software applications. He has installed and implemented numerous accounting applications for our clients both large and small, and has provided related support and training services.

Janice Yamashita, CPA

janice@costanzopepper.com 626-796-2271

Janice Yamashita graduated from California State University, Northridge in 1980, receiving a Bachelor of Science Degree in business administration with an emphasis in accounting. She obtained her CPA certificate in 1982. She is a member of both the American Institute of Certified Public Accountants and the California Society of Certified Public Accountants. She is currently our senior accounting manager, and has been an integral part of our firm for over 20 years.

Janice possesses the rare quality of being able to analyze and dissect data at the most detailed level while still maintaining a focus on the "big picture". She has extensive knowledge and experience in dealing with complex issues in both the tax and accounting fields.