ISG Executive and Leadership Team

May, 2026

Leadership Overview

ISG has 4 executives leading key functions including strategy, finance, and operations.

Driven by a commitment to thoughtful design, ISG delivers architecture, planning, environmental, and infrastructure solutions, partnering with communities to create spaces that strengthen places and improve how people live and work.

Leadership Roles at ISG

  • Chief Executive Officer - Lynn Bruns
  • Principal Chief Executive Officer - Fausto Florentino
  • Chief Financial Officer - Donald McEnteer
  • President & Partner - Neil Gray
  • Lynn Bruns - Chief Executive Officer

    Lynn Bruns, the Chief Executive Officer at ISG, directs the company's overarching strategy and vision. Bruns guides the multidisciplinary design and engineering firm, ensuring alignment with its mission to create thoughtful designs that strengthen places. This leadership role involves fostering a culture of innovation and collaboration among the employee-owned team. Bruns oversees the integration of architecture, planning, environmental, and infrastructure solutions, driving the firm's commitment to improving how people live and work. The Chief Executive Officer's focus remains on enhancing community partnerships and delivering impactful, sustainable designs across all projects. Lynn Bruns ensures the firm's continued growth and its reputation for excellence in the industry.

    Fausto Florentino - Principal Chief Executive Officer

    Fausto Florentino, the Principal Chief Executive Officer at ISG, spearheads the firm's strategic direction and operational execution. Florentino champions the employee-owned team's collaborative approach, ensuring the delivery of integrated architecture, planning, environmental, and infrastructure solutions. This leadership position involves cultivating strong partnerships with communities and organizations, translating their needs into thoughtful designs. The Principal Chief Executive Officer's responsibilities include driving the firm's commitment to strengthening places and improving living and working environments. Fausto Florentino focuses on enhancing the firm's market presence and expanding its capacity to deliver innovative solutions. This executive ensures the company's long-term success and its positive impact on the built environment.

    Donald McEnteer - Chief Financial Officer

    Donald McEnteer, the Chief Financial Officer at ISG, manages the company's financial health and strategic fiscal planning. McEnteer oversees all financial operations, including budgeting, forecasting, and resource allocation, ensuring the firm's stability and growth. This role is critical in supporting the employee-owned structure and enabling the delivery of architecture, planning, environmental, and infrastructure solutions. The Chief Financial Officer works closely with leadership to identify investment opportunities and manage financial risks. Donald McEnteer's expertise ensures that financial strategies align with the company's mission of creating thoughtful designs that strengthen communities. This executive's oversight guarantees fiscal responsibility and supports the firm's long-term sustainability and market competitiveness.

    Neil Gray - President & Partner

    Neil Gray, the President & Partner at ISG, drives operational excellence and strategic growth across the firm's service lines. Gray leads the collaborative efforts of the employee-owned team, focusing on delivering comprehensive architecture, planning, environmental, and infrastructure solutions. This position involves fostering strong client relationships and ensuring the successful execution of projects that improve how people live and work. The President & Partner's responsibilities include overseeing key business development initiatives and enhancing the firm's market position. Neil Gray champions the company's commitment to creating thoughtful designs that strengthen communities and places. This executive's leadership ensures the seamless integration of services and the consistent delivery of high-quality outcomes.
    Neil Gray

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    Frequently Asked Questions Regarding ISG Top Executives and Leadership Team

    Who leads ISG?
    ISG is led by Lynn Bruns (Chief Executive Officer), along with executives such as Fausto Florentino (Principal Chief Executive Officer) and Donald McEnteer (Chief Financial Officer).
    Who is part of ISG’s executive team?
    The executive team of ISG includes leaders such as Lynn Bruns (Chief Executive Officer), Fausto Florentino (Principal Chief Executive Officer), Donald McEnteer (Chief Financial Officer) and other senior executives.
    How many executives does ISG have?
    ISG has 4 executives leading key business areas.
    What roles are included in ISG’s leadership team?
    The leadership team of ISG includes roles such as Chief Executive Officer, Principal Chief Executive Officer, Chief Financial Officer, President & Partner.