Our Team
Each member of Moss Nonprofit Accounting has been handpicked for their professional expertise, work ethic, and heart for our clients.
Our team is proud of the work we do to help nonprofits help others!”
Meet the Team
We are a team of lifelong learners who seek new ways of working and prioritize collaboration with each other and our clients.
Most of us did not follow the traditional path to accounting, and we see that as an asset. Our lived experience, combined with our deep industry knowledge, allows us to serve our clients effectively and proactively.
Rubian Moss, CPA
Principal and Founder
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Rubian started his own firm in 2000, after getting his start as a nonprofit auditor at Ernst and Young. He’s a graduate of Chico State University and a member of both the American Institute of CPAs and the California Society of CPAs.
Rubian has over 20 years of experience in providing accounting and consulting services to nonprofits.
Rubian enjoys spending time with his family, solving mysteries and puzzles, playing disc golf, and reading.
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Hannah joined the Moss team in 2015. She has over 10 years of accounting experience and prides herself on assisting her clients to the fullest.
Hannah loves taking pictures, doing arts and crafts with her family, gardening, watching movies, and relaxing with her pets.
Hannah Dean
Accounting Manager
Maria Gonzalez-Flores
Senior Accountant
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Maria joined company in 2020 and has over 10 years of experience working in accounting. She has an associate’s degree in English Literature from Chabot Community College and is a certified paralegal.
She is currently working on her bachelor’s degree in Accounting. When Maria is not working with numbers, she enjoys spending time cycling and reading.
Sarah Curtis
Accounting Associate
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Sarah joined Moss Nonprofit Accounting in 2026. She’s a graduate of Brigham Young University with a bachelor’s degree in Business Management.
She has over 10 years of accounting experience, including roles in nonprofit, corporate, and fiduciary accounting.
Sarah enjoys puppy fostering, reading, solving puzzles, and spending time with family.
Aimee Moss
Accounting Associate
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Aimee joined the team in 2021. She’s a graduate of Smith College with a Bachelor of Arts in Education.
With over 25 years of experience in the education and nonprofit worlds, she has developed a deep appreciation for collaborative, mission-driven work. Aimee embraces a lifelong learner mindset and is proud to support clients in achieving their professional goals.
Outside the office, she enjoys solving puzzles, traveling, tinkering in the garden, and baking treats to share with others.
Michele Callagher
Operations Manager
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Michele joined the Moss team in 2016. She has a Bachelor of Arts in English from UC Santa Barbara and a Certificate in Professional Editing from UC Berkeley Extension.
She enjoys snuggling with her cats, reading, knitting, and practicing yoga.
Snowball the Budgie
Office Mascot
Snowball joined the Moss team in 2020. When she’s not snacking on millet, Snowball enjoys flying around the office and visiting our team members. She loves being in the middle of the action, and her cheerful chirps are a common addition to many an office conversation.
Explore our services and learn how you can leverage our team’s expertise to strengthen and grow your organization.