About Core Performance Consulting

What’s different at Core Performance Consulting is the visionary way we leverage technology to provide accounting solutions and services for our clients: growing businesses in Orange County, California and throughout the United States.

As an Intuit Premier Reseller (one of only about 175 in the country) and a Microsoft Certified Partner, we have a strong track record of helping small and mid-sized businesses select, implement, and master new accounting software that generates a high return on investment and that fuels our clients’ current and future growth. Our expert team offers local and nationwide customer training and support to help clients gain productivity and keep their technology investment running smoothly.

Core Performance Consulting also offers a full range of accounting services to its small and mid-sized business clients, including CFO-level consulting services, bookkeeping, payroll, and tax preparation. We specialize in providing an annual engagement package that includes tax planning, quarterly tax forecasting, financial statement analysis and review, and cash flow forecasting. Our clients’ accounting reports and files are processed using fully automated paperless workflows and delivered via highly secure, anywhere, anytime, private client portals. You’ll love it when you see it!

Founded in 2002, Core Performance Consulting serves a wide variety of industries and clients, including technology and software development companies, franchises, startups in their first ten years of business, and mid-sized companies with international operations, to name a few.

If you need help solving a problem or weakness in your accounting system or would like to talk with us about accounting services, please give us a call at 949-502-4680 M-F 8-5 Pacific Time.

About Peter Cullen

As founder and owner of Core Performance Consulting, Peter Cullen has developed a knack for helping entrepreneurial companies effectively drive increasing revenue and profits. He currently oversees a staff of accounting and IT specialists that select and install leading edge accounting systems and fulfill current clients’ ongoing accounting needs.

Peter is a thought leader in the accounting software industry. He serves on the Intuit Accountant Advisory Council, a coveted position in which fewer than 20 QuickBooks experts in the United States are selected each year.

With 30 years of broad-based financial accounting experience, Peter has served in audit positions with Deloitte & Touche and Arthur Andersen Co. and Controller and VP of Finance positions in the accounting software industry.

Peter holds software certifications in Quickbooks Enterprise, Bill.com, and Freshbooks. He earned his BA from the University of San Francisco and an MBA from the University of California. He passed the CPA examination in 1985.

When Peter is not working, he is enjoying time with his family, watching the Los Angeles Angels, or playing volleyball.

About Our Staff

Gayle Goldman, a QuickBooks Certified ProAdvisor, since 1996, is our QuickBooks Point of Sale Certified expert. Gayle supports our Point of Sale Customers with software selection, system design, implementation and training.


Carla Green, our QuickBooks Senior Bookkeeper, has been working with QuickBooks for seven years. She primarily serves our real estate customers, and is a property management expert in QuickBooks. If you have questions about QuickBooks, Real Estate Accounting, Property Management Accounting, or anything in these areas, please feel free to contact Carla.

Eric Stern, our Senior Systems Analyst, and Software Technology expert, supports all of our Customers with systems design, software set-up and integrating applications, such as Accounting, ERP, Customer Relationship Management, order processing and other integrated systems.  

Karen Zavala, our Office Manager, Karen is responsible for all office management, accounting, customer contact, and scheduling. 

Bryan Cullen, our Staff Accountant, graduated from UC Santa Barbara with a degree in Economics with an emphasis in Accounting. Bryan is responsible for many of our data conversion services, and has experience migrating data to and from QuickBooks and other Accounting systems, such as Intacct, Xero, SAGE, SAP and others.  

Fran Reed, our Method expert, is Advanced Certified in Method, and is responsible for all of our Method Integration engagements. Fran is a reporting and database expert.

AnneMarie Silva, our Senior Bookkeeper, AnneMarie is an experienced Bookkeeper, who is comfortable working onsite with our Customers or in a virtual mode. She is expert at our online solutions, such as QuickBooks Online, FreshBooks, Xero, Intacct and Wave Accounting.

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    “Peter Cullen is the best at what he offers- a comprehensive solution to managing a business thru QuickBooks.”
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