OHM Advisors Executive and Leadership Team

October, 2026

Leadership Overview

OHM Advisors has 4 executives leading key functions including strategy, financial oversight, operational scaling, and administrative management.

Committed to advancing community infrastructure, OHM Advisors delivers comprehensive architecture and engineering solutions that shape the built environment through sustainable design and technical precision.

Leadership Roles at OHM Advisors

  • President & Chief Executive Officer - Jonathan Kramer
  • Chief Financial Officer - 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 overarching strategic vision for the firm. Kramer architects long-term growth initiatives across diverse practice areas including transportation, water, and municipal engineering. By aligning internal resources with market demands, the President & Chief Executive Officer ensures the firm maintains a competitive edge in the architecture and construction sectors. Jonathan Kramer fosters a culture of innovation that empowers multidisciplinary teams to solve complex urban design challenges. This leadership role involves constant engagement with the Board to refine corporate objectives and expand the firm's footprint across North American markets. Through rigorous oversight of project delivery standards, the President & Chief Executive Officer guarantees that every client engagement reflects the core values of quality and community impact. Ultimately, Kramer drives the firm toward sustainable expansion while maintaining the high technical standards established since 1962.

    Nathaniel Cook - Chief Financial Officer

    Nathaniel Cook, the Chief Financial Officer at OHM Advisors, manages the fiscal health and capital allocation strategies for the organization. Cook oversees financial planning, budgeting, and risk management processes to support the firm's extensive portfolio in landscape architecture and mechanical engineering. By analyzing market trends and operational costs, the Chief Financial Officer optimizes resource distribution to maximize profitability across all regional offices. Nathaniel Cook collaborates with executive leadership to evaluate investment opportunities in new technologies like Geographic Information Systems. This role requires precise financial modeling to ensure the firm remains resilient during economic fluctuations. By maintaining robust internal controls and transparent reporting, the Chief Financial Officer secures the financial foundation necessary for long-term project success. Cook drives fiscal discipline, ensuring that every department operates within budgetary parameters while pursuing ambitious growth targets in the competitive architecture and engineering landscape.

    Kent Early - Chief Operating Officer

    Kent Early, the Chief Operating Officer at OHM Advisors, directs the daily operational workflows and project execution frameworks across all practice areas. Early optimizes internal processes to ensure seamless integration between construction engineering, surveying, and urban design teams. By streamlining project management methodologies, the Chief Operating Officer enhances delivery efficiency and client satisfaction. Kent Early monitors operational performance metrics to identify bottlenecks and implement scalable solutions that support the firm's diverse service offerings. This leadership role involves coordinating cross-functional teams to maintain high standards of technical excellence in complex infrastructure projects. By fostering collaboration between departments, the Chief Operating Officer ensures that project timelines and quality benchmarks remain consistent across all regional operations. Early drives operational excellence, enabling the firm to handle large-scale municipal and transportation contracts with precision while maintaining the agility required to adapt to evolving industry standards.

    Gregory Kacvinsky - Chief Administrative Officer

    Gregory Kacvinsky, the Chief Administrative Officer at OHM Advisors, manages the corporate infrastructure, human capital, and internal support systems that sustain the firm's professional environment. Kacvinsky oversees talent acquisition, employee development, and organizational culture initiatives to ensure the firm attracts top-tier experts in architecture and engineering. By refining administrative policies and internal communication channels, the Chief Administrative Officer improves organizational agility and employee engagement. Gregory Kacvinsky collaborates with other C-suite leaders to align administrative functions with the firm's broader strategic goals. This role involves managing corporate facilities and ensuring compliance with industry regulations across all operational regions. By implementing robust support systems, the Chief Administrative Officer enables technical teams to focus exclusively on delivering high-quality design and engineering solutions. Kacvinsky drives organizational efficiency, ensuring that the firm's internal structure remains capable of supporting sustained growth and complex project demands.

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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) 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), 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, Chief Operating Officer, Chief Administrative Officer.