Emma Hyatt

Client Concierge/Admin Assistant

emma@accumulus.cpa

Emma joined Accumulus in 2024 and brings experience in client support, office operations, and administrative management. She helps ensure that new client engagements start smoothly, supports internal initiatives, and helps support efficient office operations. Emma holds a Bachelor’s degree from the University of West Florida and enjoys reading in her free time.

Cliff Robben

Accounting Manager

cliff@accumulus.cpa

Cliff is an Accounting Manager at Accumulus with over 20 years of experience in financial reporting and budgeting. He has held senior roles in accounting and finance, overseeing multi-entity reporting, tax compliance, and team management. Clifford holds a BBA in Accounting from Portland State University and focuses on streamlining accounting processes for clients.

Jamey Muraoka

Accounting Manager

jamey@accumulus.cpa

Jamey joined Accumulus in 2019 and is currently an Accounting Manager. Prior to joining the Company, Jamey spent two years in the audit department of a local public accounting firm, with a focus in the insurance industry, non-profit organizations, and government agencies.

Jamey earned her Bachelor of Business Administration degree in Accounting from the School of Management at the University of San Francisco, and is currently pursuing a CPA license. She was born and raised on Oahu and in her free time enjoys shopping, traveling, photography, hiking, going to the beach, or any outdoor activity.

Ricky Peralta

Director of Client Services

ricky@accumulus.cpa

Ricky joined the Accumulus team as the Accounting Manager in May 2019. Ricky supervises the accounting team’s efforts in building and maintaining positive client relationships while also progressing the team in its own development and growth.

Ricky earned his Bachelor of Business Administration with a concentration in accounting from Robert Morris University in Illinois and is currently a candidate for his Master of Science in Accounting from Keller Graduate School in Illinois. He has a broad range of managerial and accounting experience with over 8 years of corporate accounting and management experience in the Healthcare, Banking, and Finance industries in Illinois and California.

Ricky was born and raised in Chicago. He brings a wealth of leadership experience from serving on the executive team of several community organizations including his time as VP of External Affairs with the International Society of Filipinos in Finance and Accounting (ISFFA Chicago Chapter).

Ellie Zhao

Director of Accounting & Advisory Services

ellie@accumulus.cpa

Ellie joined Accumulus in 2017 and brings over a decade of experience in corporate and outsourced accounting, with a focus on the nonprofit, healthcare, and professional services sectors. She ensures the accuracy and efficiency of clients’ accounting operations and leads system implementations to streamline financial processes. Ellie holds a BA in Accounting and Human Resources from the University of Hawai‘i at Mānoa and is committed to providing reliable, high-quality financial support that helps clients make informed decisions.

Stacey Katakura, CPA

CEO & Founder

stacey@accumulus.cpa

Stacey is the founder and CEO of Accumulus, bringing over 20 years of experience in finance, accounting, and strategic advisory to mission-driven organizations across Hawaii and beyond. A licensed CPA in both Hawaii and California, Stacey built Accumulus to offer more than just accounting services—her goal is to provide clarity, confidence, and meaningful partnership through thoughtful financial leadership. Her expertise is rooted in deep technical knowledge, industry insight, and a sincere commitment to community growth.

Before launching Accumulus in 2017, Stacey served as Vice President and CFO of Forest City Hawaii for a decade, helping to guide over $2 billion in affordable housing and renewable energy development. She began her career at Ernst & Young, focusing on real estate, hospitality, and construction. A graduate of Kaiser High School and USC’s Leventhal School of Accounting, Stacey now shares her knowledge as a mentor and nonprofit board member, supporting organizations like the YWCA of Oahu, Manoa Valley Theatre, Abilities Unlimited, and MADD Hawaii.

Meet Our Professionals

Stacey Katakura, CPA

Brandon Asuncion, CPA

Ricky Peralta

Ellie Zhao

Jamey Muraoka

Kim Saragena

Cliff Robben

Emma Hyatt

Emma Hyatt

Client Concierge/Admin Assistant

emma@accumulus.cpa

Cliff Robben

Accounting Manager

cliff@accumulus.cpa

Jamey Muraoka

Accounting Manager

jamey@accumulus.cpa

Ricky Peralta

Director of Client Services

ricky@accumulus.cpa

Ellie Zhao

Director of Accounting & Advisory Services

ellie@accumulus.cpa

Stacey Katakura, CPA

CEO & Founder

stacey@accumulus.cpa