Glen R. Zaugg MBA

CEO and Managing Partner

Glen has years of diverse hands-on experience in running businesses in industries such as, Accounting, Non-profits, Oil Field Services, Ski Resorts and Mental Health Treatment.  This broad knowledge base is valuable while working with clients to carefully guide them in establishing and organizing correct business accounting and reporting models to suit their type of business.  

As a Registered Representative with Avantax Investment Services℠, Glen is also equipped to help your business with retirement plans, investments and and help protect you with life insurance.

As an active member of the community, Glen is Past President and Board Member of the Provo Rotary Club, Past President and Board member of the National Association of Therapeutic Schools and Programs and served as President and Governing Board Member of a local non-profit.  

A longtime resident of Utah, Glen lives in Lehi, Utah with his wife and enjoys activities with his 13 grandchildren and is an avid racquetball player.

Glen has a Bachelor of Science Degree in Accounting, a Master of Business Administration Degree, a Series 6 and Series 63 Securities License and Utah Insurance Producer License.

Jared Thornock MBA

Partner & V.P. of Client Services

Jared decided he wanted to become an accountant during his freshman year in high school with a goal to own his own accounting firm. He comes from a background of farmer entrepreneurs and business owners in which he worked during his teen years.

During his college years he worked as a landscaper, HVAC Technician, and interned at an accounting firm. When he graduated from college, he became the Assistant Controller at the largest Diesel Performance Parts Warehouse in the USA where he gained valuable hands-on learning to manage a company.

In 2008 Jared joined MainStreet Tax and Accounting as a Senior Tax Accountant.  He strives to help his clients save money on their taxes and manage their companies. In 2019 he and his business partner bought MainStreet and became Vice President of the company.

He has many hobbies like golfing, watching baseball, playing softball, umpiring baseball and coaching his sons in baseball. 

Jared has a Bachelor of Science Degree in Accounting from BYU-Idaho and a Master of Business Administration Degree from Utah State University.

Keith Larsen

Tax & Accounting Professional

Keith is one of our resident experts in taxes and accounting and has more than 23 years of experience in the financial arena. Keith attended Brigham Young University and graduated with a degree in Accounting in 1989.

Keith used his Accounting degree while serving as Vice President of Overhead Construction for the telecommunication construction company, X-L Cable Corporation Inc. in Seattle, WA for many years. In 1996, Keith moved back to Vernal to work with his father, Lawrence B. Larsen, in his CPA practice while continuing to work for X-L Cable as the Controller until 2011. In 2005, Keith partnered with his brother David and his father to form MainStreet Financial Services, which eventually became MainStreet Tax & Accounting.

In addition to working as a tax and accounting professional for over 23 years, Keith has also partnered in multiple business ventures, including Workforce Solutions LLC, Prestige Energy Solutions LLC, and LLB Investments LLC. This has given him unique opportunities to further enhance his skillset and his understanding of business management. Keith also coached hockey from 1997–2017 in youth leagues, high school teams, travel teams, and tournament teams. And once you’ve coached a roomful of crazy teenagers with skates on, managing numbers is a breeze.

When Keith isn’t working hard at the office, you can find him playing hard with his family and friends. Keith loves spending time with his wife, Sheri, and their four children. They enjoy being in the outdoors and, on any given weekend, you can find them cruising around a lake on their boat and wake surfing. When Keith isn’t on the boat, he wants to be camping, hunting, fishing, or traveling to see the world. But his main joy in life is being a husband, dad, and grandpa. Anything is better with family.

As a tax and accounting professional with MainStreet Tax & Accounting, Keith takes pride in serving our clients. Their financial growth and stability are his top priority, and he takes time to educate and communicate with each of his clients. Communication is essential to an effective working relationship and Keith works directly with our clients to address their specific needs to ensure success for everyone.

David Larsen

Tax & Accounting Professional

Son of MainStreet founder Lawrence B. Larsen, David joined forces with his father in 2005 following his own successes in the areas of entrepreneurship and finance. David has years of international tax and accounting experience having his own manufacturing businesses in Guatemala and Mexico.  He is one of our resident go-to experts regarding business and personal taxes. David is well versed in non-profit operations, and is the founder and Executive Director of F.A.S.T. Foundation and SmartPalate International which operates in the U.S. and Guatemala.

Shawna Petersen CPPM

Payroll Specialist

With over 10 years of experience, Shawna can handle all our client’s needs in Human Resources, Payroll, and Payroll Law.

As our resident Specialist, Shawna has a vast knowledge of standard payroll practices, procedures, systems and terminology. With Shawna at the helm, we can do payroll for organizations of all sizes and specialties and in multiple states.

In her spare time, Shawna likes camping, fishing, and hunting with her family and can’t get enough of her grand-babies.

Tracy Martinez

Executive Secretary

As the Orem office Executive Secretary, Tracy strives to make each interaction and experience enjoyable, professional and as stress free as possible and looks forward to connecting with others through her job each day. She maintains order in the office by ensuring tax return files are organized, keeping clients informed. Other duties include scheduling appointments, answering and routing calls and emails. Tracy is new to Utah and moved to be closer to family.  In her spare time, she enjoys crafts, decorating, and seeing the beautiful country here in Utah on her Harley. She is a mom to 7 kids and 8 grandchildren, which keep her busy. 

Kara Dockter

Administrative Assistant/Bookkeeper

Kara is in the Vernal office and is your first contact when you call.  She has a positive personality and cares deeply about people.  As a Certified Office Technician, she assists our Vernal tax preparers by ensuring records are organized and keeps clients informed.  Kara also does client bookkeeping and assists our Payroll Specialist.

In her spare time, Kara enjoys camping, cooking and spending time with her kids.