CohnReznick Executive and Leadership Team

July, 2026

Leadership Overview

CohnReznick has 10 executives leading key functions including strategy, operations, technology, finance, and marketing.

Driven by a commitment to client success, CohnReznick provides companies with the insight and experience to seize growth opportunities, combining national resources with an agile, hands-on approach.

Leadership Roles at CohnReznick

  • Chief Executive Officer - Kelly O'Callaghan
  • Partner, Chief Financial Officer and CxO Advisory Leader - Swami Venkat
  • Partner, Chief Financial Officer Advisory Services - Marisa Garcia
  • Director, Chief Financial Officer Advisory, and Business & Finance Transformation, CohnReznick Advisory LLC - Catherine Tran
  • Partner, Chief Financial Officer - CohnReznick Advisory LLC - Leonard Korn
  • Chief Operating Officer - Sean Roddy
  • Chief of Staff - Risa Lavine
  • Chief Technology Officer - Justin Ricketts
  • Head Chief Technology Officer, Infrastructure, Data, Architecture & Operations - Debbrata Das
  • Chief Marketing Officer & Partner, CohnReznick Advisory Limited Liability Company - Julie Murawski
  • Kelly O'Callaghan - Chief Executive Officer

    Kelly O'Callaghan, the Chief Executive Officer at CohnReznick, directs the firm's overall strategic vision and operational execution. O'Callaghan guides the company's expansion and market positioning, ensuring alignment with the dynamic business environment. This leadership role involves fostering a culture of innovation and client-centricity across all service lines. By overseeing the integration of national resources with agile service delivery, O'Callaghan drives the firm's commitment to helping clients break through and seize growth opportunities. Kelly O'Callaghan's strategic direction ensures CohnReznick maintains its standing as a top accounting, tax, and advisory firm.
    Kelly O'Callaghan

    Swami Venkat - Partner, Chief Financial Officer and CxO Advisory Leader

    Swami Venkat, the Partner, Chief Financial Officer and CxO Advisory Leader at CohnReznick, directs financial strategy and leads the CxO Advisory practice. Venkat provides critical financial insights and guidance to clients, helping them navigate complex financial landscapes and achieve strategic objectives. This dual role involves managing the firm's internal financial health while also spearheading advisory services focused on executive financial leadership. By integrating deep financial expertise with strategic advisory capabilities, Swami Venkat ensures clients receive comprehensive support for growth and operational improvement. Venkat's leadership strengthens CohnReznick's position in financial advisory services.
    Swami Venkat

    Marisa Garcia - Partner, Chief Financial Officer Advisory Services

    Marisa Garcia, the Partner, Chief Financial Officer Advisory Services at CohnReznick, leads client engagements focused on financial strategy and transformation. Garcia provides expert guidance to companies seeking to optimize their financial operations and achieve strategic growth objectives. This role involves advising clients on critical financial matters, including performance improvement and strategic planning. By leveraging deep financial acumen, Marisa Garcia helps clients navigate complex challenges and capitalize on market opportunities. Garcia's contributions are essential to enhancing client financial health and driving sustainable business success.

    Catherine Tran - Director, Chief Financial Officer Advisory, and Business & Finance Transformation, CohnReznick Advisory LLC

    Catherine Tran, the Director, Chief Financial Officer Advisory, and Business & Finance Transformation, CohnReznick Advisory LLC, drives client success in financial and operational improvements. Tran specializes in guiding businesses through critical finance transformations, enhancing efficiency and strategic alignment. This leadership position involves developing and implementing tailored solutions to address complex business challenges. By focusing on business and finance transformation, Catherine Tran empowers clients to achieve greater agility and seize growth opportunities. Tran's expertise is pivotal in delivering measurable results and fostering long-term client partnerships.
    Catherine Tran

    Leonard Korn - Partner, Chief Financial Officer - CohnReznick Advisory LLC

    Leonard Korn, the Partner, Chief Financial Officer - CohnReznick Advisory LLC, provides strategic financial leadership and advisory services to clients. Korn guides businesses in optimizing their financial functions, ensuring robust fiscal management and strategic alignment with growth objectives. This role involves delivering expert counsel on financial planning, analysis, and operational efficiency. By focusing on the CFO function within advisory services, Leonard Korn helps clients strengthen their financial foundations and navigate market complexities. Korn's dedication to client financial success reinforces CohnReznick's commitment to delivering high-value advisory solutions.

    Sean Roddy - Chief Operating Officer

    Sean Roddy, the Chief Operating Officer at CohnReznick, oversees the firm's day-to-day operations and internal infrastructure. Roddy directs the implementation of operational strategies designed to enhance efficiency and service delivery across all business units. This leadership position involves managing resource allocation and optimizing business processes to support the firm's national reach and agile client engagement model. By ensuring robust operational frameworks, Sean Roddy enables CohnReznick to effectively serve diverse industries and client needs. Roddy's focus on operational excellence underpins the firm's capacity for sustained growth and client satisfaction.

    Risa Lavine - Chief of Staff

    Risa Lavine, the Chief of Staff at CohnReznick, facilitates strategic initiatives and operational efficiency across the organization. Lavine supports the executive leadership team by streamlining communication and driving key projects to completion. This role involves coordinating cross-functional efforts to ensure seamless execution of the firm's strategic objectives. By managing critical workflows and acting as a liaison between departments, Risa Lavine enhances the firm's agile approach to client service. Lavine's contributions are vital to maintaining operational coherence and supporting the firm's growth ambitions.

    Justin Ricketts - Chief Technology Officer

    Justin Ricketts, the Chief Technology Officer at CohnReznick, architects the firm's technology strategy and digital transformation initiatives. Ricketts drives innovation in technology solutions, ensuring the firm leverages cutting-edge tools to enhance client services and internal operations. This role is critical for maintaining CohnReznick's competitive edge in a rapidly evolving digital landscape. By overseeing the development and deployment of technological advancements, Justin Ricketts supports the firm's commitment to providing insightful and experienced advisory services. Ricketts's leadership in technology empowers the firm to deliver superior value and seize new growth opportunities.
    Justin Ricketts

    Debbrata Das - Head Chief Technology Officer, Infrastructure, Data, Architecture & Operations

    Debbrata Das, the Head Chief Technology Officer, Infrastructure, Data, Architecture & Operations at CohnReznick, manages the foundational technology pillars of the firm. Das oversees the development and maintenance of robust IT infrastructure, data management systems, and architectural frameworks. This critical role ensures the stability, scalability, and security of CohnReznick's technological environment, directly supporting client service delivery and operational efficiency. By driving advancements in infrastructure and data operations, Debbrata Das enables the firm to harness the power of information and technology for strategic advantage. Das's expertise is key to the firm's technological resilience and innovation.

    Julie Murawski - Chief Marketing Officer & Partner, CohnReznick Advisory Limited Liability Company

    Julie Murawski, the Chief Marketing Officer & Partner, CohnReznick Advisory Limited Liability Company, directs the firm's marketing strategy and brand development. Murawski oversees initiatives to enhance market presence and communicate the firm's value proposition to diverse client segments. This leadership role is crucial for driving business development and strengthening CohnReznick's position in the advisory market. By crafting targeted marketing campaigns and fostering client engagement, Julie Murawski supports the firm's growth objectives. Murawski's strategic marketing leadership ensures CohnReznick effectively connects with and serves its target audiences.

    Frequently Asked Questions Regarding CohnReznick Top Executives and Leadership Team

    Who leads CohnReznick?
    CohnReznick is led by Kelly O'Callaghan (Chief Executive Officer), along with executives such as Swami Venkat (Partner, Chief Financial Officer and CxO Advisory Leader) and Marisa Garcia (Partner, Chief Financial Officer Advisory Services).
    Who is part of CohnReznick’s executive team?
    The executive team of CohnReznick includes leaders such as Kelly O'Callaghan (Chief Executive Officer), Swami Venkat (Partner, Chief Financial Officer and CxO Advisory Leader), Marisa Garcia (Partner, Chief Financial Officer Advisory Services) and other senior executives.
    How many executives does CohnReznick have?
    CohnReznick has 10 executives leading key business areas.
    What roles are included in CohnReznick’s leadership team?
    The leadership team of CohnReznick includes roles such as Chief Executive Officer, Partner, Chief Financial Officer and CxO Advisory Leader, Partner, Chief Financial Officer Advisory Services, Director, Chief Financial Officer Advisory, and Business & Finance Transformation, CohnReznick Advisory LLC, Partner, Chief Financial Officer - CohnReznick Advisory LLC.