We provide nonprofit consulting services and have been helping organizations like yours manage their administrative workload for over 25 years.

Who We Are

Your nonprofit exists to transform communities, we exist to help make that possible.

Trestle is a team of dedicated and passionate nonprofit consulting experts. We will provide your nonprofit organization access to financial, human resources and compliance specialists.

25+ years

of experience working with nonprofit organizations


client retention and satisfaction from our quality performance and services

40 hours

per month is the average amount of executive director time saved to focus on their mission instead of administrative work

Our Principles

100% Mission Aligned

We care about what you do, which is why we provide support where it matters. We do the backend work so you can focus on your mission.

Quality Expertise

Our experts have more than 50+ years of experience working with nonprofits.

People Focused

Organizations like yours are not just clients, they’re our partners. This means that we always have your best interests at heart.

Logo for the Trestle website

Wondering about the name Trestle?

Trestle is an open cross-beamed framework to support an elevated structure, such as a bridge. Just as a trestle is a supporting foundation, Trestle’s focus is to be the supporting foundation that will help move your nonprofit’s mission forward.

Meet Our Specialists

  • Amber Calvino, CPA


    Amber loves numbers and forecasting

    With over 5 years of experience in accounting, Amber is responsible for providing accurate and timely financial reports and information to Trestle’s clients so that they can make informed decisions to achieve organizational objectives. She specializes in developing budgets and forecasts implementing accounting systems and procedures, grant financial compliance and maintaining the integrity of internal controls. Amber loves being able to leverage her love of numbers while helping nonprofit organizations succeed. She holds a bachelor’s in accounting from the University of Wyoming, is a Certified Nonprofit Accounting Professional (CNAP), and is a Certified Public Accountant (CPA).

  • Bryon Budensiek, CPA

    Founding Partner

    Bryon is on a mission to make our communities better

    Bryon has spent the last 10 years partnering with community organizations to increase their impact. Bryon has over 15 years of experience in nonprofit business management that includes roles in public accounting, finance and operations. He began his career with a large multinational engineering firm and has spent the last 10 years working with a multitude of nonprofit organizations, small businesses and start-ups. He is a graduate of Trinity Western University in Vancouver, Canada with a degree in business administration. Bryon is a licensed Certified Public Accountant (CPA).

  • Wendee Herold, MA, SPHR, SHRM-SCP

    Director of Human Resources

    Wendee is passionate about supporting people

    Wendee brings 10 years of management and human resources experience supporting employees in their onboarding, professional growth and development. Her specialties including employee relations, talent acquisition and performance management. She has worked in various industries including the hospital, security and social services sectors. Wendee holds a bachelor’s degree in sociology from the University of Minnesota Duluth and a master’s in organizational management from Ashford University.

  • Katie Romberg

    Senior Client Accountant

    Katie is a problem solver

    Having over ten years of professional experience in private and public accounting, Katie’s career has focused on serving local nonprofits and regional impact. She enjoys problem solving and bringing meaning to numbers and hopes that she can be a valuable resource for her clients as they work to make a positive impact within their community. Katie graduated from Colorado Chistian University with a double major in Business and Accounting and is a licensed Certified Public Accountant (CPA). She has received several accolades throughout her career and was recognized for her achievements in 2021 as a NoCo Forty Under 40 Honoree.

  • Elisa Whalen

    Senior Client Accountant

    Elisa is here to help

    Elisa brings with her over 8 years of experience specializing in nonprofit accounting. She loves to be a part of helping nonprofits succeed at accomplishing their mission and enjoys working with nonprofit boards and executives in understanding their financials. In her spare time, she loves to get out and explore the world – traveling, kayaking, live music and photography are some of her favorite past times.

  • Shawnney Mahowald

    Senior Client Accountant

    Shawnney makes it make sense

    Shawnney holds a Master’s in Nonprofit Operations Management and a Post Master’s in Nonprofit Professional Leadership development from Regis University. She has been involved in nonprofit organizations for over 12 years and has worked in nonprofit accounting for the last 7 years. She has worn many hats within the nonprofit sector but was drawn to making numbers make sense. She combines academic knowledge and practical insights, to ensure accurate financial reporting and record keeping and enjoys helping nonprofit organizations focus on their mission and goals by taking some of the pressure off financial compliance. She’s passionate about helping the world be a better place and has a soft spot for animal welfare. In 2022 she volunteered to use her knowledge of nonprofits and assisted in establishing a small local nonprofit in Denver Colorado that provides spay and neuter services free of charge and currently serves on the board. In her free time, Shawnney loves hanging out with her two rescue dogs and two rescue cats, reading, going to the gym, and nurturing her extensive houseplant collection.

  • Melissa Daniels

    Client Support Specialist

    Melissa is dedicated to serving our clients

    With more than 15 years of professional administrative experience, Melissa has a proven record of accomplishment in client communications and management support. She holds a bachelor’s degree in Human Development and Family Studies from Colorado State University and is passionate about helping non-profit organizations succeed in serving their communities. Melissa’s philosophy centers around what role she can play in supporting others- she is committed to excellence in service and providing a streamlined and intuitive approach to assistance.

  • Chelsea Torres

    Client Accounting Specialist

    Chelsea enjoys problem solving

    Chelsea holds a Business Administration degree from Colorado Christian University where she discovered her love for accounting. She is excited and thankful to be using her skills and education to serve nonprofits and for the opportunity to be a part of the Trestle team. She is committed to and energized by providing excellent service to her clients and team and strives to continually learn and grow.

  • Katelynn Lehto

    Client Accounting Specialist

    Katelynn loves to keep things organized

    Katelynn started her accounting career in the construction industry in 2021. Interested in serving nonprofits, she joined Trestle in 2024. Katelynn’s organization and eye for detail helps support her clients – she loves building new relationships with them and learning how to better serve their needs and help with goal achievement. She also just loves to build! Outside of work, you can find her building something, spending time with her family or her cat, camping or doing something with cars.

  • Katie Crosby

    Executive Administrative Assistant

    Katie is all about communication

    Katie holds an associate degree from Lonestar College in Cypress, Texas and has over 15 years of professional administrative experience. Specializing in communication, she has dedicated her career to serving nonprofits and communities in need. Katie provides essential support to our internal business management team and is excited to be a part of Trestle’s mission in supporting nonprofits. 

Would you like to speak directly with one of Trestle's team members?

We care about what you do, which is why we provide support where it matters. Let us help you get set up, do things efficiently and make better informed decisions through our nonprofit consulting services.

Interested in joining our team of specialists?