The EWB-USA Executive and Leadership Team

July, 2026

Leadership Overview

The EWB-USA has 10 executives leading key functions including strategy, finance, chapter operations, and regional development.

Driven by community empowerment, The EWB-USA is dedicated to supporting community-driven development through sustainable engineering projects, addressing basic human needs globally with infrastructure improvements in water, sanitation, energy, and agriculture.

Leadership Roles at The EWB-USA

  • Chief Executive Officer - Boris Martin
  • Chief Financial Officer - Regina Kolc
  • Chapter President - Alex Varvaris
  • Co-President - Victoria Spenceley
  • Chapter President - Joshua Taylor
  • Co-President - Paisley Tabor
  • Board Past- President - William Oakes
  • Regional President, Central (South) - Mazen Alameddine
  • President - Madison Lenz
  • Yale Engineers Without Borders Co-President - Zoe Martonfi
  • Boris Martin - Chief Executive Officer

    Boris Martin, the Chief Executive Officer at The EWB-USA, directs the organization's overarching strategy and operational framework. This leadership role involves guiding the nonprofit's mission to support community-driven development through sustainable engineering projects globally. Martin oversees the strategic alignment of initiatives focused on addressing basic human needs, including critical infrastructure improvements in water, sanitation, energy, and agriculture. The Chief Executive Officer ensures that programs like the International Community Program and the Community Engineering Corps effectively engage skilled volunteers to create lasting change and empower communities. Boris Martin's executive direction fosters resilience through innovative engineering solutions, solidifying the organization's impact and market position in humanitarian engineering.

    Regina Kolc - Chief Financial Officer

    Regina Kolc, the Chief Financial Officer at The EWB-USA, manages all financial operations and fiscal strategy. This critical position involves overseeing budgeting, financial planning, and resource allocation to support the organization's global development projects. Kolc ensures the financial health and sustainability of initiatives focused on water, sanitation, energy, and agriculture infrastructure. The Chief Financial Officer plays a key part in securing funding and managing expenditures for volunteer engagement programs, including the International Community Program and the Community Engineering Corps. Regina Kolc's financial oversight enables the effective deployment of resources, driving community empowerment and resilience through sound fiscal management and transparent reporting.

    Alex Varvaris - Chapter President

    Alex Varvaris, the Chapter President at The EWB-USA, leads local chapter operations and volunteer coordination. This role focuses on mobilizing skilled volunteers within specific regions to execute sustainable engineering projects. Varvaris oversees initiatives related to water, sanitation, energy, and agriculture, ensuring alignment with the organization's global mission. The Chapter President facilitates community partnerships and project development at the local level, driving tangible improvements. Alex Varvaris's leadership ensures chapters effectively contribute to empowering communities and building resilience through hands-on engineering solutions, fostering local impact and volunteer engagement.

    Victoria Spenceley - Co-President

    Victoria Spenceley, the Co-President at The EWB-USA, shares leadership responsibilities for strategic direction and organizational development. This role involves collaborating on initiatives that support community-driven development through sustainable engineering projects. Spenceley contributes to the oversight of programs addressing basic human needs, focusing on infrastructure improvements in water, sanitation, energy, and agriculture. The Co-President works to enhance volunteer engagement and community partnerships, ensuring lasting change. Victoria Spenceley's collaborative leadership drives the organization's mission to empower communities and build resilience through innovative engineering solutions.

    Joshua Taylor - Chapter President

    Joshua Taylor, the Chapter President at The EWB-USA, directs local chapter activities and project implementation. This position involves leading volunteer teams in executing sustainable engineering projects that address critical community needs. Taylor oversees efforts in water, sanitation, energy, and agriculture infrastructure development, ensuring project success and community impact. The Chapter President fosters strong relationships with local partners, facilitating the transfer of knowledge and skills. Joshua Taylor's operational leadership ensures chapters effectively empower communities and build resilience through dedicated engineering efforts and volunteer commitment.

    Paisley Tabor - Co-President

    Paisley Tabor, the Co-President at The EWB-USA, collaborates on guiding the organization's strategic vision and operational execution. This role involves driving initiatives that support community-driven development through sustainable engineering projects worldwide. Tabor contributes to the oversight of programs focused on water, sanitation, energy, and agriculture infrastructure. The Co-President works to strengthen volunteer networks and community partnerships, ensuring the long-term success of development efforts. Paisley Tabor's shared leadership enhances the organization's capacity to empower communities and build resilience through innovative engineering solutions.

    William Oakes - Board Past- President

    William Oakes, the Board Past- President at The EWB-USA, provides strategic guidance and historical perspective to the organization's leadership. This role involves advising on long-term vision and governance, drawing from extensive experience in supporting community-driven development. Oakes contributes insights on sustainable engineering projects, particularly in areas of water, sanitation, energy, and agriculture. The Board Past- President ensures continuity and adherence to the organization's core mission of empowering communities. William Oakes's advisory capacity strengthens the foundation for building resilience through innovative engineering solutions and effective volunteer engagement.

    Mazen Alameddine - Regional President, Central (South)

    Mazen Alameddine, the Regional President, Central (South) at The EWB-USA, oversees operations and strategic initiatives across a defined geographic area. This leadership position focuses on driving community-driven development through sustainable engineering projects within the Central (South) region. Alameddine directs efforts related to water, sanitation, energy, and agriculture infrastructure, ensuring regional needs are met. The Regional President, Central (South) fosters collaboration among local chapters and community partners to maximize impact. Mazen Alameddine's regional oversight strengthens the organization's ability to empower communities and build resilience through targeted engineering solutions.

    Madison Lenz - President

    Madison Lenz, the President at The EWB-USA, leads strategic planning and operational execution for the organization. This role involves guiding the nonprofit's mission to support community-driven development through sustainable engineering projects globally. Lenz oversees initiatives focused on water, sanitation, energy, and agriculture infrastructure improvements. The President works to enhance volunteer engagement and foster strong community partnerships, ensuring lasting change. Madison Lenz's leadership drives the organization's commitment to empowering communities and building resilience through innovative engineering solutions and effective program management.

    Zoe Martonfi - Yale Engineers Without Borders Co-President

    Zoe Martonfi, the Yale Engineers Without Borders Co-President at The EWB-USA, directs specific chapter initiatives and volunteer coordination at Yale University. This role focuses on mobilizing student volunteers to execute sustainable engineering projects aligned with the organization's mission. Martonfi oversees local project development and implementation, contributing to infrastructure improvements in areas such as water, sanitation, energy, and agriculture. The Yale Engineers Without Borders Co-President fosters collaboration between the university chapter and community partners. Zoe Martonfi's leadership ensures effective volunteer engagement and contributes to empowering communities and building resilience through dedicated engineering efforts.

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    Frequently Asked Questions Regarding The EWB-USA Top Executives and Leadership Team

    Who leads The EWB-USA?
    The EWB-USA is led by Boris Martin (Chief Executive Officer), along with executives such as Regina Kolc (Chief Financial Officer) and Alex Varvaris (Chapter President).
    Who is part of The EWB-USA’s executive team?
    The executive team of The EWB-USA includes leaders such as Boris Martin (Chief Executive Officer), Regina Kolc (Chief Financial Officer), Alex Varvaris (Chapter President) and other senior executives.
    How many executives does The EWB-USA have?
    The EWB-USA has 10 executives leading key business areas.
    What roles are included in The EWB-USA’s leadership team?
    The leadership team of The EWB-USA includes roles such as Chief Executive Officer, Chief Financial Officer, Chapter President, Co-President, Chapter President.