Global Infrastructure Management Executive and Leadership Team

September, 2026

Leadership Overview

Global Infrastructure Partners has 7 executives leading key functions including strategy, operations, corporate affairs, financial management, technology, administration, and investment oversight.

Focused on long-term asset performance, [[Global Infrastructure Partners]] prioritizes decarbonization and sustainable development to drive the global transition toward cleaner energy and resilient infrastructure systems.

Leadership Roles at Global Infrastructure Management

  • Chairman & Chief Executive Officer - Adebayo Ogunlesi
  • Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs - Mustafa Riffat
  • Gip's Funds Partner & Chief Financial Officer - Gregg Myers
  • Chief Operating Officer - Keith W.
  • Managing Director, Chief Technology Officer - Robert Siegel
  • Managing Director, Chief Administrative Officer - Lori Gish
  • Partner and Chief Finance Officer - Manish Dheeraj
  • Adebayo Ogunlesi - Chairman & Chief Executive Officer

    Adebayo Ogunlesi, the Chairman & Chief Executive Officer at Global Infrastructure Partners, directs the overarching investment strategy across energy, transportation, and digital infrastructure sectors. Ogunlesi architects the firm's commitment to long-term ownership, ensuring that complex assets deliver sustainable value while meeting rigorous environmental standards. By overseeing global market expansion, the Chairman & Chief Executive Officer aligns portfolio performance with the firm's core mission of decarbonization. Adebayo Ogunlesi maintains direct oversight of high-level capital allocation, fostering partnerships that support the transition to cleaner energy systems. This leadership role involves constant engagement with institutional investors to secure the financial foundation necessary for large-scale infrastructure projects. Through strategic vision and operational discipline, the Chairman & Chief Executive Officer drives the firm's reputation as a leader in sustainable asset management, ensuring that every investment contributes to long-term economic and environmental stability across international markets.
    Adebayo Ogunlesi

    Mustafa Riffat - Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs

    Mustafa Riffat, the Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs at Global Infrastructure Partners, coordinates executive communications and manages the firm's global corporate reputation. Riffat aligns internal strategic initiatives with external stakeholder expectations, ensuring that the firm's commitment to sustainable infrastructure remains clear across all markets. By managing the Office of the Chairman, the Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs facilitates seamless decision-making processes that support the firm's investment objectives. Mustafa Riffat oversees corporate affairs, driving engagement with regulatory bodies and industry partners to promote the firm's decarbonization agenda. This role involves synthesizing complex information to support executive leadership in navigating global economic shifts. Through proactive communication strategies, the Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs strengthens the firm's market position and fosters long-term relationships with key institutional partners.

    Gregg Myers - Gip's Funds Partner & Chief Financial Officer

    Gregg Myers, the Gip's Funds Partner & Chief Financial Officer at Global Infrastructure Partners, oversees the financial health and capital structure of the firm's investment funds. Myers manages the fiscal strategy for large-scale infrastructure assets, ensuring that capital deployment aligns with the firm's long-term performance targets. By directing financial reporting and investor relations, the Gip's Funds Partner & Chief Financial Officer provides transparency regarding the firm's portfolio growth and sustainability metrics. Gregg Myers evaluates the financial viability of new infrastructure projects, focusing on energy and transportation sectors to ensure robust returns. This leadership role involves coordinating with the investment team to optimize fund performance and manage liquidity across global operations. Through meticulous financial planning, the Gip's Funds Partner & Chief Financial Officer supports the firm's mission to deliver sustainable value. By maintaining fiscal discipline, the Gip's Funds Partner & Chief Financial Officer ensures that the firm remains well-positioned to fund the global transition toward cleaner, more efficient infrastructure systems.

    Keith W. - Chief Operating Officer

    Keith W., the Chief Operating Officer at Global Infrastructure Partners, manages the internal operational frameworks that support the firm's diverse portfolio of infrastructure assets. Keith W. optimizes business processes to ensure that energy, water, and waste management investments achieve peak performance. By coordinating cross-functional teams, the Chief Operating Officer streamlines the execution of complex asset management strategies, ensuring alignment with the firm's broader sustainability goals. This role involves monitoring operational efficiency across North American and international markets to mitigate risks and enhance asset value. The Chief Operating Officer collaborates with investment partners to implement best practices in asset maintenance and performance tracking. Through rigorous oversight of internal systems, the Chief Operating Officer ensures that the firm maintains its competitive edge in the infrastructure sector. By focusing on scalable operational solutions, the Chief Operating Officer supports the firm's mission to deliver reliable, long-term value to stakeholders while advancing global decarbonization efforts.

    Robert Siegel - Managing Director, Chief Technology Officer

    Robert Siegel, the Managing Director, Chief Technology Officer at Global Infrastructure Partners, architects the digital transformation strategies that enhance the performance of infrastructure assets. Siegel integrates advanced technology solutions into energy and digital systems to improve operational efficiency and data-driven decision-making. By overseeing the firm's technological infrastructure, the Managing Director, Chief Technology Officer ensures that portfolio companies leverage modern tools to meet decarbonization targets. Robert Siegel collaborates with investment teams to identify digital opportunities that increase asset value and long-term sustainability. This role involves managing cybersecurity protocols and digital innovation initiatives across the firm's global footprint. Through the implementation of smart infrastructure technologies, the Managing Director, Chief Technology Officer supports the firm's mission to modernize complex assets. By driving digital excellence, the Managing Director, Chief Technology Officer ensures that the firm remains at the forefront of the global transition toward more intelligent and sustainable infrastructure systems.
    Robert Siegel

    Lori Gish - Managing Director, Chief Administrative Officer

    Lori Gish, the Managing Director, Chief Administrative Officer at Global Infrastructure Partners, manages the firm's internal administrative functions and organizational infrastructure. Gish oversees human capital strategies, office operations, and corporate governance policies that support the firm's investment activities. By streamlining administrative processes, the Managing Director, Chief Administrative Officer ensures that the firm's teams operate with maximum efficiency while pursuing complex infrastructure projects. Lori Gish coordinates with other C-suite leaders to align administrative support with the firm's strategic goals, including the commitment to environmental responsibility. This role involves fostering a culture of operational excellence that enables the firm to attract and retain top talent in the finance sector. Through the management of internal resources, the Managing Director, Chief Administrative Officer supports the firm's mission to deliver sustainable value. By maintaining a robust administrative framework, the Managing Director, Chief Administrative Officer ensures that the firm remains agile and prepared to address the challenges of the global infrastructure market.
    Lori Gish

    Manish Dheeraj - Partner and Chief Finance Officer

    Manish Dheeraj, the Partner and Chief Finance Officer at Global Infrastructure Partners, manages the firm's treasury operations and tax strategy to support long-term asset growth. Dheeraj oversees the financial compliance and risk management frameworks that protect the firm's investments in water, waste, and energy sectors. By directing the firm's accounting and financial planning, the Partner and Chief Finance Officer ensures that all capital activities align with the firm's sustainability objectives. Manish Dheeraj collaborates with the investment committee to assess the financial impact of decarbonization initiatives on the firm's portfolio. This role involves managing relationships with financial institutions and ensuring the accuracy of financial reporting across international operations. Through strategic financial oversight, the Partner and Chief Finance Officer supports the firm's mission to deliver consistent value to investors. By optimizing the firm's financial structure, the Partner and Chief Finance Officer ensures that the firm maintains the stability required to lead the global transition toward cleaner infrastructure systems.
    Manish Dheeraj

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    Frequently Asked Questions Regarding Global Infrastructure Management Top Executives and Leadership Team

    Who leads Global Infrastructure Management?
    Global Infrastructure Management is led by Adebayo Ogunlesi (Chairman & Chief Executive Officer), along with executives such as Mustafa Riffat (Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs) and Gregg Myers (Gip's Funds Partner & Chief Financial Officer).
    Who is part of Global Infrastructure Management’s executive team?
    The executive team of Global Infrastructure Management includes leaders such as Adebayo Ogunlesi (Chairman & Chief Executive Officer), Mustafa Riffat (Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs), Gregg Myers (Gip's Funds Partner & Chief Financial Officer) and other senior executives.
    How many executives does Global Infrastructure Management have?
    Global Infrastructure Management has 7 executives leading key business areas.
    What roles are included in Global Infrastructure Management’s leadership team?
    The leadership team of Global Infrastructure Management includes roles such as Chairman & Chief Executive Officer, Managing Director. Chief of Staff, Office of the Chairman and Chief Executive Officer. Global Head of Corporate Affairs, Gip's Funds Partner & Chief Financial Officer, Chief Operating Officer, Managing Director, Chief Technology Officer.