Frank, Rimerman + Co. Executive and Leadership Team

October, 2026

Leadership Overview

Frank, Rimerman + Co. has 9 executives leading key functions including accounting, financial advisory, and consulting services.

Committed to excellence in professional services, Frank, Rimerman + Co. delivers comprehensive accounting and consulting solutions to clients. The firm maintains a focus on high-level financial strategy and operational integrity across all engagements.

Leadership Roles at Frank, Rimerman + Co.

  • Manager, Accounting & Chief Financial Officer, Advisory - Isaac Carrizosa
  • Manager, Accounting & Chief Financial Officer, Advisory - Maggie Watson
  • Manager - Accounting and Chief Financial Officer Advisory - Samantha Perlmutter
  • Manager - Accounting and Chief Financial Officer Advisory - Justine Hsu
  • Partner, Accounting and Chief Financial Officer Advisory - Melanie Kidder
  • Manager, Accounting & Chief Financial Officer, Advisory - Courtney Coddington
  • Chief Financial Officer, Accounting & Advisory - Kimberly Saigusa
  • Manager, Accounting & Chief Financial Officer, Advisory - Sophia Hanna-Chiang
  • Counsel & Chief Financial Officer, Accounting & Advisory Practice - Steve Baroni
  • Isaac Carrizosa - Manager, Accounting & Chief Financial Officer, Advisory

    Isaac Carrizosa, the Manager, Accounting & Chief Financial Officer, Advisory at Frank, Rimerman + Co., directs complex financial reporting workflows for diverse client portfolios. Carrizosa architects scalable accounting frameworks that support business growth and regulatory compliance. By overseeing North American financial operations, the Manager ensures that internal controls remain robust and transparent. This leadership role involves close collaboration with the broader advisory team to refine fiscal strategies and optimize resource allocation. Isaac Carrizosa maintains a rigorous standard for financial accuracy, which directly impacts the long-term stability of client organizations. Through the implementation of advanced accounting methodologies, the Manager drives efficiency across all engagements. Carrizosa consistently evaluates market trends to provide actionable insights, ensuring that the firm remains a leader in the accounting and consulting sector while delivering exceptional value to every client served.

    Maggie Watson - Manager, Accounting & Chief Financial Officer, Advisory

    Maggie Watson, the Manager, Accounting & Chief Financial Officer, Advisory at Frank, Rimerman + Co., manages strategic financial planning and operational accounting for high-growth enterprises. Watson designs customized financial models that facilitate informed decision-making for executive leadership teams. Overseeing regional advisory initiatives, the Manager ensures that all accounting practices align with evolving industry standards and client objectives. This role requires constant interaction with cross-functional teams to streamline financial processes and enhance reporting accuracy. Maggie Watson drives significant improvements in fiscal performance by identifying operational bottlenecks and implementing targeted solutions. Through meticulous oversight of accounting functions, the Manager supports the firm's mission of providing top-tier consulting services. Watson maintains a focus on long-term financial health, ensuring that every client receives precise, data-driven guidance tailored to specific business needs within the competitive accounting landscape.

    Samantha Perlmutter - Manager - Accounting and Chief Financial Officer Advisory

    Samantha Perlmutter, the Manager - Accounting and Chief Financial Officer Advisory at Frank, Rimerman + Co., oversees the delivery of specialized accounting and advisory services for complex business entities. Perlmutter architects financial strategies that address unique client challenges, focusing on operational efficiency and fiscal transparency. By managing large-scale accounting projects, the Manager ensures that all deliverables meet the highest standards of professional excellence. This leadership position involves coordinating with internal teams to provide comprehensive financial oversight and strategic consulting. Samantha Perlmutter drives growth by optimizing accounting workflows and implementing robust financial reporting systems. Through a deep understanding of industry nuances, the Manager provides critical support to clients navigating complex financial environments. Perlmutter maintains a commitment to precision and strategic alignment, ensuring that the firm consistently delivers high-impact results that foster long-term client success and organizational stability.
    Samantha Perlmutter

    Justine Hsu - Manager - Accounting and Chief Financial Officer Advisory

    Justine Hsu, the Manager - Accounting and Chief Financial Officer Advisory at Frank, Rimerman + Co., directs the execution of financial advisory engagements for a wide range of corporate clients. Hsu designs and implements accounting solutions that enhance operational performance and financial clarity. Overseeing the integration of complex accounting data, the Manager ensures that all reporting remains accurate and compliant with current regulations. This role involves working closely with the advisory team to develop strategies that support client business objectives. Justine Hsu drives efficiency by refining internal accounting processes and leveraging advanced analytical tools. Through the application of deep industry knowledge, the Manager provides essential guidance on financial management and strategic planning. Hsu maintains a focus on delivering high-quality consulting services, ensuring that the firm remains a trusted partner for businesses seeking to optimize their financial operations and achieve sustainable growth.

    Melanie Kidder - Partner, Accounting and Chief Financial Officer Advisory

    Melanie Kidder, the Partner, Accounting and Chief Financial Officer Advisory at Frank, Rimerman + Co., leads the firm's strategic initiatives in financial advisory and accounting services. Kidder architects high-level financial frameworks that empower clients to navigate complex market conditions and achieve long-term objectives. By overseeing the entire advisory practice, the Partner ensures that all engagements align with the firm's commitment to excellence and professional integrity. This leadership role involves mentoring senior staff and collaborating with other partners to drive business development and service innovation. Melanie Kidder maintains a focus on delivering comprehensive consulting solutions that address the specific needs of diverse business entities. Through the implementation of rigorous financial standards, the Partner drives organizational growth and enhances the firm's market position. Kidder consistently provides expert guidance on fiscal strategy, ensuring that clients receive the highest level of support for their accounting and advisory requirements.
    Melanie Kidder

    Courtney Coddington - Manager, Accounting & Chief Financial Officer, Advisory

    Courtney Coddington, the Manager, Accounting & Chief Financial Officer, Advisory at Frank, Rimerman + Co., manages the delivery of specialized accounting and financial advisory services for corporate clients. Coddington designs and executes strategies that improve financial reporting accuracy and operational efficiency. Overseeing the implementation of accounting best practices, the Manager ensures that all client engagements remain compliant and effective. This role involves coordinating with cross-functional teams to provide comprehensive financial oversight and strategic consulting. Courtney Coddington drives performance by identifying opportunities for process improvement and implementing robust financial solutions. Through a deep understanding of accounting principles, the Manager provides critical support to clients navigating complex business environments. Coddington maintains a commitment to precision and strategic alignment, ensuring that the firm consistently delivers high-impact results that foster long-term client success and organizational stability within the competitive accounting and consulting landscape.

    Kimberly Saigusa - Chief Financial Officer, Accounting & Advisory

    Kimberly Saigusa, the Chief Financial Officer, Accounting & Advisory at Frank, Rimerman + Co., directs the firm's internal financial strategy and oversees the delivery of high-level advisory services. Saigusa architects financial policies that ensure the firm's operational health and long-term growth. By managing the accounting and advisory practice, the Chief Financial Officer ensures that all client engagements meet the highest standards of quality and professional excellence. This leadership role involves collaborating with the executive team to refine business strategies and optimize resource allocation. Kimberly Saigusa drives performance by implementing advanced financial reporting systems and fostering a culture of fiscal responsibility. Through the application of deep industry expertise, the Chief Financial Officer provides essential guidance on complex financial matters. Saigusa maintains a focus on delivering exceptional value to clients, ensuring that the firm remains a leader in the accounting and consulting sector.
    Kimberly Saigusa

    Sophia Hanna-Chiang - Manager, Accounting & Chief Financial Officer, Advisory

    Sophia Hanna-Chiang, the Manager, Accounting & Chief Financial Officer, Advisory at Frank, Rimerman + Co., oversees the execution of complex accounting and financial advisory projects for diverse business clients. Hanna-Chiang designs and implements financial strategies that enhance operational clarity and support strategic decision-making. By managing the day-to-day accounting functions, the Manager ensures that all reporting is accurate, timely, and compliant with industry standards. This role involves working closely with the advisory team to provide comprehensive financial oversight and consulting services. Sophia Hanna-Chiang drives efficiency by refining accounting processes and leveraging analytical tools to identify growth opportunities. Through a deep understanding of financial management, the Manager provides essential guidance to clients navigating challenging business environments. Hanna-Chiang maintains a focus on delivering high-quality results, ensuring that the firm remains a trusted partner for businesses seeking to optimize their financial operations and achieve sustainable success.

    Steve Baroni - Counsel & Chief Financial Officer, Accounting & Advisory Practice

    Steve Baroni, the Counsel & Chief Financial Officer, Accounting & Advisory Practice at Frank, Rimerman + Co., directs the legal and financial strategy for the firm's advisory practice. Baroni architects frameworks that integrate legal compliance with robust financial management, ensuring that all client engagements remain secure and effective. By overseeing the intersection of legal counsel and financial advisory, the Counsel & Chief Financial Officer provides unique insights that support complex business decision-making. This leadership role involves collaborating with the executive team to mitigate risk and drive strategic growth. Steve Baroni maintains a focus on delivering comprehensive consulting solutions that address the specific needs of diverse business entities. Through the application of deep industry knowledge, the Counsel & Chief Financial Officer drives organizational performance and enhances the firm's market position. Baroni consistently provides expert guidance, ensuring that clients receive the highest level of support for their accounting and advisory requirements.
    Steve Baroni

    Frequently Asked Questions Regarding Frank, Rimerman + Co. Top Executives and Leadership Team

    Who leads Frank, Rimerman + Co.?
    Frank, Rimerman + Co. is led by Isaac Carrizosa (Manager, Accounting & Chief Financial Officer, Advisory), along with executives such as Maggie Watson (Manager, Accounting & Chief Financial Officer, Advisory) and Samantha Perlmutter (Manager - Accounting and Chief Financial Officer Advisory).
    Who is part of Frank, Rimerman + Co.’s executive team?
    The executive team of Frank, Rimerman + Co. includes leaders such as Isaac Carrizosa (Manager, Accounting & Chief Financial Officer, Advisory), Maggie Watson (Manager, Accounting & Chief Financial Officer, Advisory), Samantha Perlmutter (Manager - Accounting and Chief Financial Officer Advisory) and other senior executives.
    How many executives does Frank, Rimerman + Co. have?
    Frank, Rimerman + Co. has 9 executives leading key business areas.
    What roles are included in Frank, Rimerman + Co.’s leadership team?
    The leadership team of Frank, Rimerman + Co. includes roles such as Manager, Accounting & Chief Financial Officer, Advisory, Manager, Accounting & Chief Financial Officer, Advisory, Manager - Accounting and Chief Financial Officer Advisory, Manager - Accounting and Chief Financial Officer Advisory, Partner, Accounting and Chief Financial Officer Advisory.