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I wanted to relay my thanks on behalf of our team for your great workshop yesterday! I have had the pleasure of attending two of your workshops and have been very impressed with your presentations. They have certainly contributed to my personal growth and I hope to the growth of the company.

Phoebe Ullberg

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Heather Sprauve is a native of Deer Park, California. She attended Pacific Union College (PUC) in Angwin, then transferred to their sister college, Atlantic Union College in South Lancaster, Massachusetts, before returning to Angwin to complete her degree. She started out as an art major but after taking her first business class, discovered an aptitude for accounting and made that her major. Heather moved to the Virgin Islands where she married and spent 18 years working for an accounting firm. She worked for BDCo part-time for a few years and then following the devastating impact of hurricanes Irma and Maria, returned to California. While she enjoys being back in California, Heather misses her daily view of the Caribbean Ocean from almost any spot on the 31 square mile island of St. Thomas. Her interests include hiking, traveling and exploring new places.

Heather SprauveGlobal Gallivanter

Mattie Eagle is a graduate of Grinnell College in Grinnell, Iowa where she majored in History and Studio Art. After graduation, travel, and several applications of her entrepreneurial talents, she went back to school at Western New Mexico University to gain the accounting credits that qualified her to become a CPA. In 2022, she added a Masters of Taxation to her credentials. She was raised in Minnesota and now lives in Silver City, New Mexico with her husband and two children. She is a full-time member of the BDCo tax team. She particularly enjoys researching tax laws as they change in search of new opportunities to help our customers. Mattie loves supporting her customers as they take calculated risks, pursue the expansion of their passions, and become owners of their financial futures. An avid cyclist, Mattie is inspired by those who lead a “self-directed life” and enjoys applying her considerable talents to local sports, charitable organizations, and entrepreneurs who are seeking to build successful businesses. Mattie is a CPA licensed both by the New Mexico Board of Accountancy and the California Board of Accountancy.

Mattie EagleSilver Spinner

Known as 'The Nordic Decoder' for his heritage and talent for simplifying complex systems, Daigen Afdahl brings technical expertise and personal insight to the BDCo team as Tax Manager. With roots on a Wisconsin dairy farm and a passion for uncovering the stories behind numbers, he specializes in helping businesses and individuals navigate tax code sections while leveraging data to support informed decision-making. Daigen earned his Bachelor of Science in Business Administration and Master of Professional Accountancy from Montana State University in Bozeman, where he honed his problem-solving skills and practical expertise. He gained hands-on experience as a volunteer preparing tax returns for residents of remote Alaskan villages, followed by advancing roles in public accounting, where he developed extensive skills in tax return preparation, staff management, and strategic financial planning. Beyond the office, Daigen’s creativity extends to the kitchen, where he crafts gluten-free and dairy-free meals inspired by a recent lifestyle change. A lifelong learner and problem solver, he thrives on helping clients optimize their tax strategies, tackle operational challenges, and achieve their business goals in complex industries.

Daigen AfdahlNordic Decoder

Lisa Akrawi is a graduate of Walla Walla University where she earned a BBA with a concentration in accounting and a certificate of business analytics. A former Napa Valley resident, she was drawn to accounting by an interest in numbers, organization, and balance. She sees accounting as a specialized language to learn and apply. Her BDCo title, 'Virtuoso', is word-play on the importance of integrity in the role of a public accountant and the artistic endeavors in her personal life. She became a certified makeup artist while obtaining her BBA and continues to make time for creative activities, even when work gets busy. This is her way of maintaining time management, critical thinking, and work-life balance. From her Orlando, Florida home, Lisa enjoys peaceful mornings, summer storms, and a sunny house full of pets and plants.

Lisa AkrawiVirtuoso

Chandra Englehart is a resident of Illinois and holds a degree from the University of Evansville (UE) and a Masters in Business Administration from the University of Southern Indiana. She has prior experience in both audit and tax and has held accounting roles in both private equity funds and banks. At one point, she even worked on a cemetery audit and was engaged in counting headstones. She is excited about applying her spirit-counting expertise in Wine Country and to helping people make sense of the numbers. She is an avid baseball fan and competitor, and as a former player on the NCAA Division 1 UE softball team, still holds the home run record. Her accolades don’t stop there as she was recognized as a 4 time all Academic player and at one point even held the record for getting “Hit by Pitch”. A mother of two young children, Chandra is inspired by her Mom, and is constantly looking for new ways to grow and learn. In 2025, she became a Certified Management Accountant(CMA) through the Institute of Management Accountants. Chandra is a CPA licensed by the Illinois Board of Examiners, and holds a CMA (Certified Management Accountant) license from the Institute of Management Accountants.

Chandra EnglehartPinch Hitter

Dawn Marshall is a Napa native. She briefly left the Napa Valley for a sojourn to Miami, Florida but returned to Napa to begin her professional career. Her first job was in a florist, before moving to high-end hospitality, then winery accounting and for the past 17 years she has been serving in a number of different roles in city government, culminating in the role of Human Resources and Administrative Manager. She is a two time recipient of “Award of Financial Reporting” by the Government Finance Officers Association. When she’s not helping “humans with resources”, she is likely to be gardening, quilting, or arranging items in her home to be more aesthetically pleasing. Dawn is the mother of 3 children – 2 sons and a daughter who all seem to have inherited some of her creative abilities. As a young woman, Dawn went off to purchase her first automobile, a Renault, at a local Napa automobile dealer. While she was unsuccessful in securing her dream automobile, she ultimately walked away with a first date with her now husband of 29 years.

Dawn MarshallTeam Harmonizer

Randy Gnagy has been a CPA for more than 35 years, having first joined BDCo in 2000. He is the firm's senior tax specialist, and has a great deal of experience in interstate taxation and tax preparation for nonprofit organizations. Over the years he has been active in Junior Achievement, the Arts Council of Napa Valley, the Napa Valley Shakespeare Festival, and has served on the board of Napa Emergency Women's Services and UpValley Family Centers of Napa County. He has also done volunteer work at local schools. An avid cyclist, he holds a BA in history from California State University, Fresno. Randy is a CPA licensed by the California Board of Accountancy.

Randy GnagyPain Reliever

Aaron Soon, an alumnus of the Shidler School of Business at the University of Hawaii at Manoa, brings a unique blend of experience to our tax team. Originally embarking on an engineering journey at UCLA, Aaron eventually returned to his Hawaiian roots, where he pivoted to a focus in accounting and finance. His diverse academic background and prior work experience enriches our team with fresh perspectives. Aaron's successful journey to passing the CPA examination was partly fueled by collaborative study sessions with his wife, who was concurrently preparing for her medical boards. In his role as a dedicated tax professional, Aaron draws inspiration from his wife's resilience and determination. The couple cherishes their moments together, finding solace and strength in each other's company amidst their demanding careers. A versatile athlete, Aaron has dabbled in various team sports, ultimately finding his passion in cross country and track during his high school years. These days, away from the spreadsheets and tax forms, Aaron is often spotted at HiClimb, honing his bouldering skills and embracing the challenges of climbing, much like he tackles complexities in taxation. Aaron is a CPA, Certified by the Hawaii Board of Public Accounting

Aaron SoonTax Crux Crusher

Erica Umphreyville has always been surrounded by numbers and accountants—from her parents to her siblings—but her true passion lies in making a meaningful impact on her community and for her clients. A graduate of Southern Methodist University in Dallas, Texas, Erica holds a Master of Science in Accounting. She honed her expertise at a Big 4 CPA firm, focusing on the governmental and non-profit sectors, and more recently served as a Controller, overseeing the financial operations of 24 Title I charter schools. Erica’s deep connection to her work is inspired by the powerful women in her life, especially her mother, who rose from an Accounts Payable Manager to a Director of Finance in the Biotech industry, embodying the hard work and dedication that Erica values. Though based in Texas, Erica is excited to work with wineries, leveraging her unique blend of analytical prowess and creative problem-solving to unravel complex accounting challenges and help clients achieve their goals. When she’s not delving into data or strategizing with clients, you might find Erica appreciating nature, whether it’s walking on a trail near her apartment or engaging in a competitive game of pickleball. She also enjoys exploring her culinary side, cooking Italian food, and growing her own herb and vegetable garden. Erica is a CPA, licensed by the Texas State Board of Public Accountancy

Erica UmphreyvilleAltruistic Auditor

Craig Underhill is the firm's CEO. He has been a CPA for over 37 years and has been with BDCo since 1995. Leveraging his vast accounting and management expertise, he's adept at steering wine and hospitality entities towards strategic success. His education in strategic management, productivity, and human behavior empowers individuals across all levels—from top executives to hourly staff—to reach their peak. A master at inciting introspective questions, Craig enables individuals to unlock their potential and bolster performance. He is the board chair for Junior Achievement in Napa County and has led JA's expansion from 250 participants to over 4,000 annually. He holds a business administration degree from California State University, Chico and is certified in Strategic Performance Management. He is an active volunteer and trained handler for Aaron the Comfort Dog, a Napa celebrity. You can read Craig's blog posts here and hear him describe his vision for the firm here. Craig is a CPA licensed by the California Board of Accountancy.

Craig UnderhillEmperor of Enlightenment, CEO

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1000 Main Street, Suite 250
Napa, CA 94559

Meetings in our offices can be arranged by appointment only. Please let us know if you will be dropping by our offices so we can be sure to greet you.

707-963-4466

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1000 Main Street, Suite 250
Napa, CA 94559

Phone  :  707-963-4466
FAX  :  707-266-1673
email  :  info@bdcocpa.com

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