About Jacob Burrill, CPA

Our Mission

Burrill CPA exists to elevate individuals and businesses to bring an increase in wealth, integrity, and collaboration to our Big Island community. We do this by offering full-service accounting and consulting for businesses, investors, and nonprofits with a big picture focus and proven results. We invite you to grow with us.

Our Clients

Our clients are motivated, goal-oriented business people with a strong ‘why’ behind their work. They are ready to take their business to the next level and want to make an impact. They understand the value of investing in people and developing relationships that support their broader vision.

Our clients are investors who want to grow their wealth and leave an enduring legacy. They are savvy individuals who have complex investment vehicles and require an accounting firm who is on their level. Many find themselves navigating family estates and trusts. They need help keeping the peace in relationships and making sound legal and tax decisions during a transitional time.

Does this sound like you?

Jacob Burrill

Jacob Burrill, CPA


Jacob is an accountant with a big vision. His intention is to make a lasting, positive impact on his community by supporting and educating business owners. He takes a comprehensive approach to accounting, providing valuable strategic planning and consulting, with an eye for long-term prosperity and goal achievement.

A member of Kona’s business community since 2009, Jacob is extensively involved in local service work. He currently serves on the supervisory committee for Hawaii Community Federal Credit Union, volunteers with Hospice, and donates time to various other nonprofits. He is a member of the American Institute of Certified Public Accountants (AICPA).

Jacob graduated from Cal State Fullerton with a Bachelor’s degree in Business Administration with a specialization in Finance. He received his master’s degree in Accounting and is a licensed CPA in the state of Hawaii. On a day off, you’re likely to find him relaxing on one of Kona’s beautiful beaches with his wife and their two children.


Krystel Carmelo Archibald

General Manager

Krystel Carmelo Archibald, head of the Accounting department, has over 10 years of experience in corporate accounting. Krystel has been involved with variety of industries such as banking, management consulting, wholesale, and restaurants. Coming from an entrepreneurial family, she recognizes the challenges of owning a small business and is committed to helping them succeed.

Krystel is passionate about education. A certified Quickbooks Online Advisor, she offers payroll and bookkeeping training for businesses to help them create a strong foundation for growth.

Her philosophy when it comes to work is that people are the priority. Being successful in business means establishing strong, lasting relationships with clients, built on the backbone of trust, honesty, and teamwork.

David Avallone

David Avallone

Senior Tax Accountant

David was born and raised on the Big Island in Kailua-Kona, Hawaii. He grew up in an entrepreneurial family where he developed an appreciation for small business as an integral part of the island community.

David received his Bachelor of Accounting degree in 2018 and immediately started studying to become a Certified Public Accountant (CPA).  He passed all four of his exams the first time and became a licensed CPA in December of 2020.  He joined Burrill CPA in June of 2020 and specializes in tax preparation and tax planning for individuals, small businesses, and passthrough entities. 

When he’s not at the office, David enjoys surfing, fishing, and riding ATVs. One of his favorite places to explore on the Big Island is South Point or Ka Lae.

Hannah Ako

Hannah Ako

Staff Accountant

Hannah Ako is passionate about planning. Understanding her clients personal and financial goals is the key to creating their road map to success. Hannah emphasizes on dedication, discipline, and determination as these are the 3 action words she believe builds a strong foundation to success.

A certified QuickBooks Online Advisor and over 8 years of financial lending experience, she provides valuable insight, tools, and resources to help accomplish each milestone.

Rooted to this community and its people, Hannah has volunteered with various local organization, groups, and clubs.

Lahi Weigang

Lahilahi Leina’ala Weigang

Payroll Administrator

Lahilahi Leina’ala Weigang is currently a team member of Burrill Cpa Tax & Accounting in Kailua-Kona. She began working in payroll with Bill Mayse & Associates in 2014. Lahi is passionate about mastering new skills, strives for knowledge and is eager to grow in the payroll field. 

Lahi was born and raised in Oahu and attended La Pietra-Hawaii School for Girls in Diamond Head. She studied the Japanese language for 7 years and made the Varsity Volleyball team as a freshman. Lahi was such an accomplished player that she made it to the Junior Olympics with Asics Volleyball Club. After completing High School Lahi moved to Silicon Valley where she managed the shipping and receiving department for Hi Tec Technologies and United Super Tech.  

Lahi and her husband Tyler, who is a draftsman with Weigang Marvick and Associates, are the proud parents of three children. Sage Keahi, Koa Nawai, and Jade Leaina’ala. They also have a beautiful shih tzu dog named Ivy. Lahi and Tyler built their first home in 2016 here in Kailua-Kona. Lahi and her ʻohana are very passionate about growing their own food and have planted everything from apple, banana, mango, mamaki and citrus trees. Lahi loves fitness and enjoys cooking! Lahi’s greatest love has been raising her children in Hawaii where she treasures the cultural practices and values instilled by her family.

Randy Voss

Randall Voss

advisory Staff

Randy began his career in accounting with Caterpillar Inc. in 1972. Over the next 40 years, he served in key accounting and financial advisory roles as the company grew to become one of the Dow Jones Top 30 publicly traded companies.

Randy brings a wealth of experience to his role at Burrill CPA, including factory accounting, cost estimating, auditing, budgeting, business, financial services, and project management. He worked in Caterpillar’s global purchasing department, where he handled forecasting of the company’s exposure to commodity markets. He holds a BS in Accounting from Aurora University.

Randy enjoys the challenge of finding creative solutions to complicated problems. He is an expert at analyzing intimidating amounts of financial data and identifying where businesses can become more efficient, discerning, and innovative. This is likely because he’s a certified Six Sigma Black Belt.

Six Sigma is a process and quality improvement discipline-based in statistical analysis. It is utilized by many top corporations, including General Electric, to achieve fantastic results. A Six Sigma process is one in which 99.99966% of all opportunities to produce some feature of a part or process are statistically expected to be free of defects.

Randy’s love of examining, problem-solving, and fixing began growing up on a farm. His family owned and operated a grain and livestock farm in the suburbs of Chicago. He spent many hours taking apart machinery and automobiles and putting them back together with his Dad – who passed on his talent for MacGyvering.

In 2011, Randy and his wife relocated to the Big Island and bought a 10.5-acre farm in Honaunau where they grow avocado, macadamia nuts, and citrus. He and his wife have 3 children and 2 grandchildren. Two of his children, their spouses, and grandchildren live on and help with the farm.

When he’s not analyzing data or being a farmer, Randy enjoys restoring classic cars – he has a 1980 MGB and a ‘65 Oldsmobile 442 – and singing. He has been singing in barbershop quartets and choruses since the 1970s and is the proud holder of an international gold medal from the Barbershop Harmony Society. He is active with the Kona Aloha Singers, where he serves as treasurer.


Sophorn Clark

Office Administrator

Sophorn’s journey to the Burrill CPA Tax & Accounting family began in Cambodia as young girl in a family
looking for a better life just after the fall of the Khemer regime. Led by a strong and determined matriarch,
Sophorn and her 2 sisters arrived in the US in 1986 to start a life of opportunities which included progressing from customer service, to operations manager for Verizon Wireless at the highest volume retail location in the state, located in bustling downtown Philadelphia. After a decade of growth in wireless retail, Sophorn and her life partner decided a life change was in order, and made the move from the big city, to the Big Island of Hawaii.

Upon settling in Kona, Sophorn took on yet another challenge by shifting careers and moving into fine jewelry sales for Maui Divers Jewelry. Drawing from her inherited determination, and willingness to learn, it wasn’t long before she was consistently ranked as one of the top 3 in sales on the island. At times drawing in full-time sales numbers, even while working part time, and still devoting time to projects and businesses built over time in Kona with her partner Ajani.

Officially joining the Burrill CPA Tax & Accounting family in Summer of 2022, Sophorn is known to coworkers, clients, and friends as a compassionate person, who is always willing to take the extra step to make life easier for others. Rain or shine, Sophorn always offers a “hello”, “goodbye”, and “Aloha” with bright energy and a genuine smile. She is appreciative to have found her new work ohana, and is looking forward to what the future holds at Burrill & Associates.