OHM Advisors Executive and Leadership Team

June, 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 focuses on delivering innovative architectural solutions across diverse practice areas, shaping communities through expert design and engineering.

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 extensive practice areas, including Construction Engineering, Geographic Information Systems, and Water services. Overseeing all major corporate initiatives, Kramer ensures alignment with the firm's founding principles and market objectives. This leadership role involves fostering a culture of innovation and client-centric service delivery, critical for maintaining OHM Advisors' position in the architecture and engineering sector. By championing strategic growth opportunities, Jonathan Kramer drives the firm's expansion and enhances its reputation for delivering comprehensive solutions to municipal and private clients. Kramer's executive oversight ensures the integration of all business units, maximizing operational synergy and client value.

    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 financial planning, budgeting, accounting, and treasury functions, ensuring the company's financial health and stability. This executive oversees investment strategies and capital management, supporting the firm's growth initiatives across its architecture and engineering practice areas. By maintaining robust financial controls and reporting mechanisms, Nathaniel Cook provides critical insights to the executive team and board. The Chief Financial Officer & Treasurer's role is integral to managing risk and optimizing profitability, particularly in complex construction engineering and municipal projects. Cook's financial leadership ensures that OHM Advisors can continue to invest in talent and technology, reinforcing its market position and commitment to delivering exceptional client value.

    Kent Early - Chief Operating Officer

    Kent Early, the Chief Operating Officer at OHM Advisors, manages the day-to-day operational execution of the firm's diverse service offerings. Early oversees the integration and efficiency of departments such as Mechanical, Electrical & Plumbing Engineering, Municipal Engineering, and Planning. This executive ensures that project delivery across all practice areas, from Landscape Architecture & Urban Design to Surveying and Transportation, adheres to the highest standards of quality and timeliness. By optimizing internal processes and resource allocation, Kent Early enhances the firm's capacity to serve clients effectively throughout the United States. The Chief Operating Officer's responsibilities include driving operational excellence and supporting the strategic goals set forth by the President & Chief Executive Officer. Early's focus on operational performance directly contributes to the firm's sustained growth and client satisfaction, ensuring seamless project execution from conception to completion.

    Gregory Kacvinsky - Chief Administrative Officer

    Gregory Kacvinsky, the Chief Administrative Officer at OHM Advisors, oversees the critical support functions that enable the firm's operational success. Kacvinsky manages human resources, information technology, legal affairs, and corporate communications, ensuring a cohesive and efficient organizational structure. This executive plays a vital role in developing and implementing policies that support employee development and foster a positive work environment across all practice areas, including Geographic Information Systems and Water services. By streamlining administrative processes and managing corporate infrastructure, Gregory Kacvinsky enhances the firm's overall productivity and compliance. The Chief Administrative Officer's strategic oversight ensures that OHM Advisors operates smoothly, allowing technical teams to focus on delivering high-quality architectural and engineering solutions. Kacvinsky's leadership strengthens the internal framework, supporting the firm's mission and client commitments.

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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.