Avangrid Executive and Leadership Team

August, 2026

Leadership Overview

Avangrid has 4 executives leading key functions including digital infrastructure, power generation, financial oversight, and utility operations.

Focused on sustainable energy expansion, Avangrid delivers reliable power to millions of customers while maintaining a commitment to ethical corporate governance and grid modernization across the United States.

Leadership Roles at Avangrid

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

    Saygin Oytan, the President and Chief Executive Officer Avangrid Power at Avangrid, manages the entire portfolio of renewable energy generation assets. Overseeing 10.5 GW of power production, the President and Chief Executive Officer Avangrid Power drives the expansion of wind and solar projects across the United States. Oytan coordinates with regional stakeholders to secure project development and long-term sustainability goals. This leadership role involves maximizing the output of 75 generation facilities to meet the growing demand for clean energy. By optimizing asset performance, the President and Chief Executive Officer Avangrid Power ensures consistent revenue growth for the power business line. Saygin Oytan maintains rigorous oversight of capital allocation for new energy projects. Through strategic planning, Oytan strengthens the company's market position as a leader in the renewable sector. This focus on operational excellence supports the broader corporate objective of delivering reliable energy to millions of customers nationwide while advancing the transition to a decarbonized grid.
    Saygin Oytan

    Justin Lagasse - Chief Financial Officer & Controller

    Justin Lagasse, the Chief Financial Officer & Controller at Avangrid, manages the financial health and fiscal reporting for $47 billion in assets. Overseeing capital budgeting and treasury functions, the Chief Financial Officer & Controller ensures the company maintains a strong balance sheet to support infrastructure investments. Lagasse directs the financial planning process to align with the strategic goals of both the networks and power business lines. This leadership role involves rigorous risk management and compliance with regulatory financial standards. By optimizing the capital structure, the Chief Financial Officer & Controller facilitates the funding of grid modernization projects across New York and New England. Justin Lagasse collaborates with the executive team to drive long-term shareholder value. Through precise financial oversight, Lagasse supports the operational scale required to serve 3.3 million utility customers. This commitment to fiscal discipline enables the organization to sustain its growth trajectory while maintaining the highest standards of corporate governance and transparency.
    Justin Lagasse

    Giancarlo De souza - Chief Operating Officer, Networks

    Giancarlo De souza, the Chief Operating Officer, Networks at Avangrid, manages the daily operations of eight electric and natural gas utilities. Overseeing the delivery of energy to 3.3 million customers, the Chief Operating Officer, Networks ensures the reliability and safety of grid infrastructure across New York and New England. De souza directs field operations and maintenance programs to minimize service interruptions. This leadership role involves coordinating with regulatory bodies to implement grid hardening initiatives. By optimizing utility performance, the Chief Operating Officer, Networks supports the company's mission to provide consistent energy services to homes and businesses. Giancarlo De souza maintains a focus on operational efficiency and safety protocols for all field personnel. Through the management of complex utility networks, De souza drives the integration of new technologies into the existing grid. This strategic oversight ensures the company meets the growing demand for energy while maintaining high levels of customer satisfaction and operational excellence.

    Sergio Merchan - Chief Information Officer

    Sergio Merchan, the Chief Information Officer at Avangrid, directs the digital transformation strategy across all utility and power generation assets. By architecting secure cloud infrastructure and advanced data analytics platforms, the Chief Information Officer ensures operational efficiency for 8,000 employees. Merchan oversees the integration of cybersecurity protocols to protect critical energy infrastructure against evolving threats. This leadership role involves aligning technological investments with the broader corporate mission of grid modernization. By implementing automated monitoring systems, the Chief Information Officer optimizes the performance of 75 energy generation facilities. Sergio Merchan maintains constant collaboration with the Board to prioritize digital resilience. Through the deployment of cutting-edge software solutions, Merchan supports the company's goal of providing reliable energy to 3.3 million customers. This strategic focus on technology enables the organization to scale operations effectively while maintaining compliance with industry standards across all 23 states of operation.

    Explore Leadership Teams in Electricity, Oil & Gas

    Frequently Asked Questions Regarding Avangrid Top Executives and Leadership Team

    Who leads Avangrid?
    Avangrid is led by Saygin Oytan (President and 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 and 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 and Chief Executive Officer Avangrid Power, Chief Financial Officer & Controller, Chief Operating Officer, Networks, Chief Information Officer.