Management & Our Consultants

J. Mark Olson, CPA – PresidentOlson Book Picture

Mark began his public accounting career with KPMG and left as a senior auditor before embarking on a career in Corporate America.  Mark is a California CPA and brings the broad perspective and maturity of more than 30 years of solid business experience to his practice, having served as both a proven financial executive, consultant and CPA serving small to medium sized businesses.

Mark’s experience ranges from consulting, to financial executive positions, including Chief Financial Officer, Vice President of Finance and Corporate Controller. Mark has also provided senior level management and leadership support in the accounting and finance functions for numerous public and private companies, producing successful results along the way.

With this experience, Mark brings a proven track record, financial knowledge, and maturity to the table.

Mark enjoys golf, sailing, motorcycling, traveling and spending time with his family and friends.

Education & Professional Certifications

  • California Certified Public Accountant
  • Certified Quickbooks ProAdvisor
  • University of San Diego: BBA, Accounting

Professional Organizations & Community Involvement

Mark is an active member of the California Society of CPAs and serves as Treasurer for a non-profit organization. He is also the co-author of the book Why Businesses Stop Growing.


Shirley WilianiImage 6-9-16 at 6.51 AM

Shirley began her career with KPMG in their Los Angeles Audit practice. After several years, she was hired to lead the accounting department of a leading video game software distributor and accessory manufacturer. Half a decade later, she went on to lead the finance and accounting departments for a handful of other successful companies in the manufacturing, distribution, and construction industries. During this time, she held the positions of Controller, Vice President of Finance and Chief Financial Officer for companies ranging from start-up to $200 million in revenues.

In 2010, Shirley found herself longing for entrepreneurship and a new venture that would offer the same variety she enjoyed during her public accounting days coupled with the experience of her years in private industry. Since then, Wiliani and Associates have helped a number of entrepreneurs build their businesses and improve their finance and accounting infrastructures. Shirley holds a Bachelor’s Degree in Accounting and a Master’s Degree in Business from the University of Southern California. She is a Certified Public Accountant in the State of California. (License #92592) She enjoys running, cycling, salsa dancing, skiing, scuba diving and cycling. She lives in Culver City with her husband Ray, and their three children, Ryan, Rana and Saum.


Our Consultants

Our Consultants come from a talented network of senior executives, all of whom have held financial positions such as CFO, VP Finance, Controller and Treasurer. They resolve problems and help to create solutions for companies of all different sizes, including Fortune 500 companies, smaller start-ups and established companies.

  • We bring cost-effective solutions to your organization
  • Customizable for your needs
  • Short-term and long-term projects
  • Available on an “as-needed” basis
  • We can provide one professional or a team of professionals
  • Work directly with your executive and management team
  • Hands-on approach
  • On-going support as required
  • CFO Services

For more information, please click here and we will contact you as soon as possible.  Or call us at (949) 291-9211.