OHM Advisors Executive and Leadership Team

May, 2026

Leadership Overview

OHM Advisors has 4 executives leading key functions including strategy, operations, finance, and administration.

Driven by a commitment to client success, OHM Advisors leverages deep expertise across architecture and engineering disciplines to deliver impactful solutions that shape communities and infrastructure nationwide.

Leadership Roles at OHM Advisors

  • President & Chief Executive Officer - Jonathan Kramer
  • Chief Financial Officer & Treasurer - Nathaniel Cook
  • Chief Operating Officer - Kent Early
  • Chief Administrative Officer - Gregory Kacvinsky
  • Jonathan Kramer - President & Chief Executive Officer

    Jonathan Kramer, the President & Chief Executive Officer at OHM Advisors, directs the firm's overarching strategy and vision. Kramer guides the executive team in advancing the company's mission across its diverse practice areas, including construction engineering, GIS, landscape architecture, and various engineering disciplines. This leadership role involves fostering innovation and ensuring the firm's continued growth and market leadership. Kramer's strategic direction ensures alignment with client needs and industry advancements, driving the company's impact in urban design and infrastructure development. Overseeing all major corporate initiatives, Jonathan Kramer champions the firm's commitment to excellence and client satisfaction, solidifying OHM Advisors' position as a leader in the architecture and engineering sector.

    Nathaniel Cook - Chief Financial Officer & Treasurer

    Nathaniel Cook, the Chief Financial Officer & Treasurer at OHM Advisors, directs all financial operations and fiscal strategy for the firm. Cook manages budgeting, financial planning, and investment strategies, ensuring the company's financial health and stability across its broad range of services, from surveying to mechanical, electrical, and plumbing engineering. This critical role involves overseeing financial reporting, managing capital, and safeguarding assets to support the firm's long-term objectives. Nathaniel Cook's financial acumen is essential for sustaining growth and enabling strategic investments in new technologies and market expansion. The Chief Financial Officer & Treasurer ensures robust financial controls are in place, supporting the firm's mission to deliver impactful infrastructure and design solutions.

    Kent Early - Chief Operating Officer

    Kent Early, the Chief Operating Officer at OHM Advisors, manages the day-to-day operational execution across all practice areas. Early oversees the integration of services, ensuring seamless project delivery from construction engineering to water resource management. This executive function involves optimizing resource allocation and enhancing operational efficiency throughout the firm's extensive service offerings. Early's focus on operational excellence supports the firm's ability to manage complex projects nationwide. By streamlining processes and fostering collaboration among departments, Kent Early ensures that OHM Advisors consistently meets and exceeds client expectations in delivering comprehensive architectural and engineering solutions. The Chief Operating Officer's oversight extends to the firm's geographic reach, coordinating efforts across its various operational hubs.

    Gregory Kacvinsky - Chief Administrative Officer

    Gregory Kacvinsky, the Chief Administrative Officer at OHM Advisors, oversees the essential support functions that enable the firm's operational success. Kacvinsky manages human resources, information technology, and corporate governance, ensuring a productive and efficient work environment for all employees across the firm's diverse practice areas. This leadership position is vital for maintaining the internal infrastructure that supports OHM Advisors' extensive project portfolio, from municipal engineering to transportation planning. Gregory Kacvinsky's strategic oversight of administrative functions ensures seamless integration of resources and personnel, directly contributing to the firm's ability to deliver high-quality architectural and engineering services. The Chief Administrative Officer champions policies that foster employee development and operational synergy.

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    Frequently Asked Questions Regarding OHM Advisors Top Executives and Leadership Team

    Who leads OHM Advisors?
    OHM Advisors is led by Jonathan Kramer (President & Chief Executive Officer), along with executives such as Nathaniel Cook (Chief Financial Officer & Treasurer) and Kent Early (Chief Operating Officer).
    Who is part of OHM Advisors’s executive team?
    The executive team of OHM Advisors includes leaders such as Jonathan Kramer (President & Chief Executive Officer), Nathaniel Cook (Chief Financial Officer & Treasurer), Kent Early (Chief Operating Officer) and other senior executives.
    How many executives does OHM Advisors have?
    OHM Advisors has 4 executives leading key business areas.
    What roles are included in OHM Advisors’s leadership team?
    The leadership team of OHM Advisors includes roles such as President & Chief Executive Officer, Chief Financial Officer & Treasurer, Chief Operating Officer, Chief Administrative Officer.