Avangrid Executive and Leadership Team

July, 2026

Leadership Overview

Avangrid has 4 executives leading key functions including technology, power generation, network operations, and financial oversight.

Driven by a commitment to sustainable energy, Avangrid focuses on expanding grid infrastructure and energy generation projects to meet nationwide demand, prioritizing innovation and service to its millions of customers.

Leadership Roles at Avangrid

  • President & Chief Executive Officer, Avangrid Power - Saygin Oytan
  • Chief Financial Officer & Controller - Justin Lagasse
  • Chief Operating Officer, Networks - Giancarlo De souza
  • Chief Information Officer - Nelly Jefferson
  • Saygin Oytan - President & Chief Executive Officer, Avangrid Power

    Saygin Oytan, the President & Chief Executive Officer, Avangrid Power at Avangrid, spearheads the strategic direction and operational execution for the company's power generation business. Oytan oversees a portfolio of over 75 energy generation facilities across the United States, producing more than 10.5 GW of power. This critical leadership position involves driving growth and maximizing the efficiency of Avangrid's power assets to meet the energy needs of millions of customers nationwide. By fostering innovation in energy production and ensuring alignment with market demands, Saygin Oytan directly impacts Avangrid's overall market presence and financial performance. Oytan's executive oversight ensures the continued expansion of clean and reliable energy sources, reinforcing Avangrid's commitment to sustainable energy solutions and its role as a key player in the national energy landscape.
    Saygin Oytan

    Justin Lagasse - Chief Financial Officer & Controller

    Justin Lagasse, the Chief Financial Officer & Controller at Avangrid, directs the company's financial strategy, planning, and reporting. Lagasse oversees all fiscal operations, including budgeting, forecasting, and capital allocation, ensuring the financial health and stability of Avangrid's nationwide energy operations. This pivotal role involves managing approximately $47 billion in assets and supporting strategic investments in grid infrastructure and energy generation projects. By maintaining rigorous financial controls and driving fiscal discipline, Justin Lagasse ensures that Avangrid can effectively fund its growth initiatives and meet its obligations to stakeholders. Lagasse's expertise is fundamental to the company's ability to expand its service offerings and maintain its position as a leading energy provider.
    Justin Lagasse

    Giancarlo De souza - Chief Operating Officer, Networks

    Giancarlo De souza, the Chief Operating Officer, Networks at Avangrid, manages the day-to-day operations of the company's extensive electric and natural gas utilities. De souza directs the strategic expansion and maintenance of grid infrastructure, ensuring reliable service delivery to more than 3.3 million customers across New York and New England. This executive role involves optimizing operational processes, enhancing service reliability, and overseeing capital investments in network upgrades. By focusing on operational excellence, Giancarlo De souza drives efficiency and customer satisfaction within the networks business. De souza's leadership is crucial for Avangrid's commitment to meeting growing energy demands through service and innovation, directly supporting the company's mission to expand its utility operations and serve communities effectively.

    Nelly Jefferson - Chief Information Officer

    Nelly Jefferson, the Chief Information Officer at Avangrid, directs the company's technology strategy and digital transformation initiatives. Overseeing all IT infrastructure and cybersecurity measures, Jefferson ensures the robust and secure operation of Avangrid's extensive network and power generation systems across 23 states. This leadership role involves architecting scalable technology solutions that support Avangrid's mission of expanding grid infrastructure and energy generation projects nationwide. By optimizing data management and implementing advanced analytics, Nelly Jefferson drives operational efficiency and enhances the company's ability to serve over 3.3 million utility customers and 3.1 million power customers. Jefferson's focus remains on leveraging technology to foster innovation and maintain Avangrid's position as a leading energy provider.
    Nelly Jefferson

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    Frequently Asked Questions Regarding Avangrid Top Executives and Leadership Team

    Who leads Avangrid?
    Avangrid is led by Saygin Oytan (President & Chief Executive Officer, Avangrid Power), along with executives such as Justin Lagasse (Chief Financial Officer & Controller) and Giancarlo De souza (Chief Operating Officer, Networks).
    Who is part of Avangrid’s executive team?
    The executive team of Avangrid includes leaders such as Saygin Oytan (President & Chief Executive Officer, Avangrid Power), Justin Lagasse (Chief Financial Officer & Controller), Giancarlo De souza (Chief Operating Officer, Networks) and other senior executives.
    How many executives does Avangrid have?
    Avangrid has 4 executives leading key business areas.
    What roles are included in Avangrid’s leadership team?
    The leadership team of Avangrid includes roles such as President & Chief Executive Officer, Avangrid Power, Chief Financial Officer & Controller, Chief Operating Officer, Networks, Chief Information Officer.