Suffolk County Government Executive and Leadership Team

July, 2026

Leadership Overview

Suffolk County Government has 6 executives leading key functions including strategy, finance, operations, and economic development.

Driven by a commitment to public service, Suffolk County Government provides essential services, fosters economic growth, and ensures public safety for its residents and businesses.

Leadership Roles at Suffolk County Government

  • Chief Financial Officer - Debora Dickerson-Sims
  • President - James Gruenfelder
  • Chief of Staff - Leah Fitzpatrick
  • Deputy Chief of Staff - Melanie Sinesi
  • Chief of Staff To Suffolk County Legislator Chad Lennon - Stephanie Stafford
  • Department of Economic Development & Planning Chief of Staff - John Huttie
  • Debora Dickerson-Sims - Chief Financial Officer

    Debora Dickerson-Sims, the Chief Financial Officer at Suffolk County Government, manages all fiscal operations and financial planning. Overseeing the county's budget, revenue streams, and expenditure controls, Dickerson-Sims ensures financial stability and accountability. This critical role involves developing financial strategies that support economic development initiatives and public safety investments. By guiding fiscal policy and resource allocation, Debora Dickerson-Sims safeguards the county's financial health. The Chief Financial Officer's oversight extends to ensuring compliance with all financial regulations and optimizing the use of public funds to benefit Suffolk County residents and businesses.

    James Gruenfelder - President

    James Gruenfelder, the President at Suffolk County Government, leads the overall strategic vision and operational oversight for the county. This executive role involves guiding the implementation of public safety initiatives, citizen services, and economic development programs. Gruenfelder directs efforts to enhance community well-being and ensure the efficient functioning of government operations across Suffolk County. By fostering collaboration among departments and stakeholders, James Gruenfelder drives progress towards key county goals. The President's leadership is central to promoting cultural and recreational development while maintaining a strong public service framework.
    James Gruenfelder

    Leah Fitzpatrick - Chief of Staff

    Leah Fitzpatrick, the Chief of Staff at Suffolk County Government, directs internal operations and strategic initiatives. Overseeing critical administrative functions, Fitzpatrick ensures the efficient delivery of citizen services and public safety programs. This leadership role involves coordinating departmental efforts to align with the county's overarching mission of community development and resident support. By managing key projects and interdepartmental communications, Leah Fitzpatrick drives operational excellence across the organization. The focus remains on enhancing the effectiveness of government services and fostering a responsive environment for businesses and individuals within Suffolk County.

    Melanie Sinesi - Deputy Chief of Staff

    Melanie Sinesi, the Deputy Chief of Staff at Suffolk County Government, supports the Chief of Staff in executing strategic priorities and managing daily operations. This position involves assisting in the coordination of citizen services, business resources, and public safety initiatives. Sinesi plays a key part in ensuring seamless communication and collaboration between various county departments. By facilitating project management and operational improvements, Melanie Sinesi contributes to the effective delivery of government programs. The Deputy Chief of Staff's responsibilities are integral to maintaining the county's commitment to community development and resident assistance.

    Stephanie Stafford - Chief of Staff To Suffolk County Legislator Chad Lennon

    Stephanie Stafford, the Chief of Staff To Suffolk County Legislator Chad Lennon at Suffolk County Government, manages legislative operations and constituent affairs. Overseeing the strategic direction and administrative functions for Legislator Chad Lennon, Stafford ensures effective representation and policy implementation. This role involves coordinating legislative priorities, managing staff, and facilitating communication with county departments and the public. By driving legislative initiatives and constituent outreach, Stephanie Stafford supports the goals of the Suffolk County Legislature. The focus remains on advancing community interests and ensuring responsive governance within the county.

    John Huttie - Department of Economic Development & Planning Chief of Staff

    John Huttie, the Department of Economic Development & Planning Chief of Staff at Suffolk County Government, directs strategic planning and operational execution for economic growth initiatives. Overseeing key programs that foster business resources and community development, Huttie ensures alignment with county objectives. This leadership position involves coordinating efforts to attract investment, support local businesses, and enhance the economic vitality of Suffolk County. By driving planning processes and interdepartmental collaboration, John Huttie advances the county's economic agenda. The Chief of Staff's focus is on creating a robust economic environment for residents and businesses.

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    Frequently Asked Questions Regarding Suffolk County Government Top Executives and Leadership Team

    Who leads Suffolk County Government?
    Suffolk County Government is led by Debora Dickerson-Sims (Chief Financial Officer), along with executives such as James Gruenfelder (President) and Leah Fitzpatrick (Chief of Staff).
    Who is part of Suffolk County Government’s executive team?
    The executive team of Suffolk County Government includes leaders such as Debora Dickerson-Sims (Chief Financial Officer), James Gruenfelder (President), Leah Fitzpatrick (Chief of Staff) and other senior executives.
    How many executives does Suffolk County Government have?
    Suffolk County Government has 6 executives leading key business areas.
    What roles are included in Suffolk County Government’s leadership team?
    The leadership team of Suffolk County Government includes roles such as Chief Financial Officer, President, Chief of Staff, Deputy Chief of Staff, Chief of Staff To Suffolk County Legislator Chad Lennon.