BerryDunn Executive and Leadership Team

July, 2026

Leadership Overview

BerryDunn has 5 executives leading key functions including strategy, operations, human resources, sales, and marketing.

Driven by a commitment to client success, BerryDunn focuses on delivering exceptional service through integrity and expertise, helping clients create, grow, and protect value across diverse industries nationwide and globally.

Leadership Roles at BerryDunn

  • Chief Executive Officer - Sarah Belliveau
  • Chief Operating Officer, Assurance, Tax & Advisory Services - Renee Bishop
  • Chief Operating Officer, Assurance, Tax & Advisory Services - Tammy Brunetti
  • Culture Chief Engagement Officer & Chief Human Resources Officer - Cydney Runions
  • Chief Sales & Marketing Officer - Colleen Oakley
  • Sarah Belliveau - Chief Executive Officer

    Sarah Belliveau, the Chief Executive Officer at BerryDunn, directs the firm's overarching strategy and vision. Belliveau guides the executive team in navigating the complex landscape of accounting and consulting services, ensuring alignment with the company's mission to help clients create, grow, and protect value. This leadership role involves fostering innovation across all service lines, from town and local governments to healthcare and financial services. Belliveau's strategic direction ensures BerryDunn remains at the forefront of the industries it serves, maintaining a constant commitment to client success. The CEO's focus extends to cultivating a culture of integrity and expertise throughout the organization, reinforcing the firm's reputation for delivering exceptional service coast to coast and around the world. Sarah Belliveau's executive oversight is critical for sustained growth and market leadership.

    Renee Bishop - Chief Operating Officer, Assurance, Tax & Advisory Services

    Renee Bishop, the Chief Operating Officer, Assurance, Tax & Advisory Services at BerryDunn, manages the operational execution of core service delivery. Bishop oversees the seamless integration of assurance, tax, and advisory functions, ensuring efficiency and quality for a diverse client base spanning government, healthcare, and commercial sectors. This leadership position involves optimizing workflows and resource allocation to support the firm's mission of client value creation and protection. Renee Bishop's operational strategies directly impact the firm's ability to deliver exceptional service, grounded in integrity and expertise. The COO's responsibilities include driving process improvements that enhance client satisfaction and support long-term success across the United States and globally. Bishop's role is pivotal in maintaining BerryDunn's competitive edge through operational excellence.
    Renee Bishop

    Tammy Brunetti - Chief Operating Officer, Assurance, Tax & Advisory Services

    Tammy Brunetti, the Chief Operating Officer, Assurance, Tax & Advisory Services at BerryDunn, drives operational efficiency and strategic implementation within key service lines. Brunetti focuses on enhancing the delivery of assurance, tax, and advisory services, ensuring clients receive expert guidance tailored to their specific needs across various industries. This executive position involves overseeing the operational frameworks that support BerryDunn's commitment to client value creation and protection. Tammy Brunetti's operational leadership is fundamental to upholding the firm's standards of integrity and exceptional service delivery. By optimizing service processes and resource management, Brunetti contributes significantly to the firm's ability to achieve client success across the US and internationally. The COO's strategic focus ensures BerryDunn consistently meets and exceeds client expectations.
    Tammy Brunetti

    Cydney Runions - Culture Chief Engagement Officer & Chief Human Resources Officer

    Cydney Runions, the Culture Chief Engagement Officer & Chief Human Resources Officer at BerryDunn, architects the firm's employee experience and organizational culture. Runions leads initiatives focused on talent acquisition, development, and retention, ensuring BerryDunn attracts and retains top professionals across all service areas. This critical role champions engagement strategies that align with the company's mission of fostering a supportive and expert-driven environment. Cydney Runions' leadership in human resources cultivates a culture of integrity and commitment to success, vital for delivering exceptional service to clients nationwide. By focusing on employee well-being and professional growth, Runions strengthens the firm's capacity to serve diverse sectors, from higher education to high tech. The Chief Human Resources Officer's influence is key to maintaining BerryDunn's reputation as a premier employer and trusted advisor.

    Colleen Oakley - Chief Sales & Marketing Officer

    Colleen Oakley, the Chief Sales & Marketing Officer at BerryDunn, spearheads the firm's market expansion and client acquisition strategies. Oakley directs all sales and marketing efforts, ensuring BerryDunn effectively communicates its comprehensive service offerings to a broad spectrum of clients, including government, healthcare, and commercial entities. This leadership role is crucial for driving revenue growth and enhancing brand visibility across the United States and globally. Colleen Oakley's strategic vision in sales and marketing reinforces the company's mission to help clients create, grow, and protect value. By cultivating strong client relationships and executing targeted campaigns, Oakley ensures the firm's expertise and integrity are recognized. The Chief Sales & Marketing Officer's initiatives are vital for sustaining BerryDunn's market leadership and commitment to client success.

    Frequently Asked Questions Regarding BerryDunn Top Executives and Leadership Team

    Who leads BerryDunn?
    BerryDunn is led by Sarah Belliveau (Chief Executive Officer), along with executives such as Renee Bishop (Chief Operating Officer, Assurance, Tax & Advisory Services) and Tammy Brunetti (Chief Operating Officer, Assurance, Tax & Advisory Services).
    Who is part of BerryDunn’s executive team?
    The executive team of BerryDunn includes leaders such as Sarah Belliveau (Chief Executive Officer), Renee Bishop (Chief Operating Officer, Assurance, Tax & Advisory Services), Tammy Brunetti (Chief Operating Officer, Assurance, Tax & Advisory Services) and other senior executives.
    How many executives does BerryDunn have?
    BerryDunn has 5 executives leading key business areas.
    What roles are included in BerryDunn’s leadership team?
    The leadership team of BerryDunn includes roles such as Chief Executive Officer, Chief Operating Officer, Assurance, Tax & Advisory Services, Chief Operating Officer, Assurance, Tax & Advisory Services, Culture Chief Engagement Officer & Chief Human Resources Officer, Chief Sales & Marketing Officer.