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About
Nguyen & Associates, CPA

Vision

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Nguyen & Associates CPA, Inc. upholds the core values of integrity, trust and professionalism by providing high quality, responsive services that are held to the professional and ethical standards expected by our clients and the profession. Colorado is a thriving state and we want to help be a part of it's business growth as one of the best Denver CPA Firms.

Integrity from the core.

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The heart of Nguyen & Associates, CPA is its team. Built upon honesty, ethicality and integrity, we are dedicated to working for the sole purpose of our clients’ best interests and, in doing so, maintaining the industry’s best client-experience. Not to mention we’re super-responsive, friendly and—dare we say—fun.

Ryan Nguyen, CPA

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Ryan earned his Bachelor’s degree in Business Administration with an emphasis in Accounting from the University of Colorado Denver in 2011 and his CPA shortly after in 2013. After graduating he worked in various accounting roles giving him a solid understanding of business and tax strategy. Ryan has industry experience in non-profit, environmental science, airline, and public accounting with companies ranging from $5 million to $1.5 billion in revenue. This broad range of experience comes with a range of tax knowledge and niche skills that can be applied to any business for the best results. Lastly, his creative problem solving skills allow him to develop the best tax strategy to reduce your income tax liability, which is where you will find the most value.

In his free time, Ryan enjoys snowboarding, riding his motorcycle, traveling, and recording music.

Ryan Nguyen

Ryan Nguyen, CPA has a broad range of industry experience with expertise in tax, financial analysis, and accounting information systems.

Ryan Nguyen, CPA

Ryan earned his Bachelor’s degree in Business Administration with an emphasis in Accounting from the University of Colorado Denver in 2011and his CPA shortly after in 2013. After graduating he worked in various accounting roles giving him a solid understanding of business and tax strategy. Ryan has industry experience in non-profit, environmental science, airline, and public accounting with companies ranging from $5 million to $1.5 billion in revenue. This broad range of experience comes with a range of tax knowledge and niche skills that can be applied to any business for the best results. Lastly ,his creative problem solving skills allow him to develop the best tax strategy to reduce your income tax liability, which is where you will find the most value.

On his free time, Ryan enjoys snowboarding, riding his motorcycle, traveling, and recording music.

ken@nguyencpas.com

Ken Legge, CPA

Ken joined Nguyen & Associates in the Fall of 2020.

He has been doing taxes since 2007, became a licensed CPA in 2011, and received a Master of Taxation from the University of Denver in 2013. He has worked in corporate State and Local as well as public income taxation. He has worked with small and large businesses in real estate, telecom, retail, farm & ranch, oil & gas, and especially enjoys Trust & Estates. He enjoys tax law and research and likes knowing, educating, and serving his individual clients.

He has two daughters and spends his free time with them, in the outdoors, and with friends. Ken enjoys volunteering as part of his church family, and especially likes Jeeping and volleyball.

catherine@nguyencpas.com

Catherine Oakley

Catherine Oakley joined Nguyen & Associates in March of 2020 as the Office Manager. Her focus is in providing exceptional customer service while providing administrative support to our team of CPA’s. 

Catherine earned her Bachelor’s degree in Business Administration with an emphasis in Finance from the University of San Diego. She started her career in accounting at the corporate level of a large restaurant chain. She remained in the hospitality industry for many years before jumping into the public sector as an Analyst for a large school district. Stepping away from her career to raise her children, she served in Children’s ministry at her church for 11 years; a job that allowed her children to be a part of what she was doing. With her diverse experience and her passion for serving others, she strives to provide world-class care to both external and internal customers. Catherine and her husband have 3 sons, and two very needy dogs.

Catherine enjoys skiing, camping, hiking, watching her boys’ athletic events, all things HGTV (which her husband does not appreciate) and family vacations to wine country.

katie@nguyencpas.com

Katie Oh, CPA

Katie Oh earned her bachelor’s degree in computer science education from National University in Korea in 2004. She was certified and worked as a high school teacher from 2004 – 2006. Katie was a business owner/operator from 2009 – 2014 during which time she also studied accounting at the University of Colorado. Katie passed the CPA exams in 2017.

In her free time, Katie and her husband enjoy watching sports, especially Colorado Rockies games. They have 4 children who are all athletes competing at various levels in baseball, basketball, softball, and volleyball.

james@nguyencpas.com

James Choi, CPA

James joined Nguyen & Associates in November of 2021. He earned his Bachelor of Science degree in hospitality management at University of Nevada Las Vegas and obtained his CPA license in September 2018.

James has 7 years of public accounting experience filing individual, corporate, and partnership returns focusing on clients operating within the hospitality and restaurant industries. Also he has over 2 years of Oil and Gas accounting experience managing fixed assets and capital project accounting at MPLX LP.

James enjoys working with clients to ensure that their tax returns are accurate and that all deductions and credits have been applied in order to result in the lowest tax liabilities. In his free time, James enjoys playing golf and hiking.

james@nguyencpas.com

Susan Ryan

Susan earned her Bachelor’s degree in Computer Management and Information Systems from Metropolitan State University in 2008.  She worked as a database engineer for an aerospace company for several years then as a stakeholder in an aerospace contracting company where she was also Director of Accounting and Human Resources.  

She earned her Certificate of Accounting in 2014 and has 3 years of experience preparing taxes. She is also working towards becoming an Enrolled Agent with the IRS. She has 2 children and enjoys spending time outside with her dogs, hiking, attending concerts, traveling, DIY projects on her hundred-year-old home, and cooking.

james@nguyencpas.com

Terri Cassutt

Terri Cassutt joined Nguyen & Associates, CPA, in November of 2023 as the Executive Assistant to the CEO. Terri started her career managing high-end retail stores before transitioning into C-suite-level executive support. She brings over two decades of experience supporting various industries such as aviation, automotive, pharmaceutical, and manufacturing. Terri brings valuable skills such as coordinating compelling interests and priorities, executing diplomacy, and providing critical time management support to Nguyen & Associates, CPA.

Terri moved to Colorado in 1992 from Florida, where she lived for five years but grew up in Syracuse, NY. Terri enjoys spending time with her husband, their dog Buddy, friends, and crafting.