Ebara Executive and Leadership Team

September, 2026

Leadership Overview

Ebara has 8 executives leading key functions including strategy, revenue management, information systems, human resources, infrastructure development, precision machinery, corporate leadership, and strategic business development.

Focused on engineering excellence, Ebara delivers advanced industrial machinery and environmental solutions to support critical global infrastructure and semiconductor manufacturing operations.

Leadership Roles at Ebara

  • Gerente General- Chief Executive Officer - Donaldo Guerrero
  • Executive Officer President, Infrastructure Company - Masayuki Kai
  • Executive Officer President, Precision Machinery Company Division Executive, Equipment Division - Isao Nambu
  • President - Masao Hodai
  • Executive Officer Chief Revenue Officer (In Charge of Risk Management and Legal and Internal Control and Environmental Health and Safety) - Toru Nakayama
  • Executive Officer Chief Information Officer (In Charge of Information and Communication System) and Division Executive, Information and Communication System Division - Hiroyuki Kowase
  • Executive Officer Chief Human Resources Officer (In Charge of Human Resources and Safety and Labor Management and Human Resource Development) Division Executive, Human Resources Division - Akihiro Osaki
  • Global Director, Strategic Sed - Stephen Reynolds
  • Donaldo Guerrero - Gerente General- Chief Executive Officer

    Donaldo Guerrero, the Gerente General- Chief Executive Officer at Ebara, directs the overarching strategic vision for the global industrial machinery portfolio. By aligning engineering capabilities with market demands, the Chief Executive Officer ensures the company maintains a competitive edge in pump, compressor, and turbine manufacturing. This leadership role involves coordinating with the Board to optimize capital allocation across international markets. Donaldo Guerrero monitors the performance of diverse business units to guarantee operational efficiency and long-term sustainability. Through rigorous oversight of industrial goods production, the Chief Executive Officer drives growth across the global network. By fostering innovation in environmental systems and precision machinery, the executive secures the company's position as a leader in critical infrastructure support. Ultimately, Guerrero strengthens the organizational commitment to quality and technical excellence while navigating complex global economic landscapes to deliver consistent value to stakeholders and industrial partners worldwide.

    Masayuki Kai - Executive Officer President, Infrastructure Company

    Masayuki Kai, the Executive Officer President, Infrastructure Company at Ebara, directs the design, manufacturing, and service of critical infrastructure solutions including pumps, blowers, and wastewater treatment systems. The President, Infrastructure Company architects strategies to support industrial operations and environmental systems on a global scale. By focusing on the reliability of essential machinery, Kai ensures that the company meets the rigorous demands of public and private infrastructure projects. This leadership role involves coordinating with engineering teams to innovate product offerings that address water and waste management challenges. Masayuki Kai oversees the operational performance of the infrastructure division to maximize efficiency and market impact. Through the delivery of high-quality engineered products, the President, Infrastructure Company drives sustainable growth in the industrial goods sector. Ultimately, Kai strengthens the company's reputation for technical excellence by providing robust solutions that support the foundational needs of global markets and industrial facilities.

    Isao Nambu - Executive Officer President, Precision Machinery Company Division Executive, Equipment Division

    Isao Nambu, the Executive Officer President, Precision Machinery Company Division Executive, Equipment Division at Ebara, manages the development and production of advanced machinery used in semiconductor manufacturing. The President, Precision Machinery Company architects technical solutions that enable high-precision industrial applications. By overseeing the equipment division, Nambu ensures that the company remains at the forefront of technological innovation in the semiconductor sector. This leadership role involves managing the lifecycle of complex machinery from design to service. Isao Nambu drives operational excellence by aligning manufacturing capabilities with the specific requirements of advanced technology clients. Through the strategic management of the equipment division, the President, Precision Machinery Company supports the global semiconductor supply chain. Ultimately, Nambu secures the company's market position by delivering high-performance equipment that meets the exacting standards of modern manufacturing, thereby contributing to the overall growth and technical leadership of the organization.

    Masao Hodai - President

    Masao Hodai, the President at Ebara, directs the day-to-day operations and strategic execution of the global industrial machinery business. The President oversees the integration of various business units to ensure cohesive performance across the company's diverse product portfolio. By monitoring the manufacturing and service of pumps, compressors, and environmental systems, Hodai ensures that the organization maintains its commitment to quality and innovation. This leadership role involves collaborating with other C-suite executives to drive efficiency and market expansion. Masao Hodai manages the operational scale of the company to meet the needs of international clients. Through the implementation of strategic initiatives, the President supports the company's mission to provide critical infrastructure solutions. Ultimately, Hodai strengthens the organizational structure by fostering a culture of operational excellence and technical precision, ensuring that the company continues to deliver high-value products to the global industrial goods market.
    Toru Nakayama, the Executive Officer Chief Revenue Officer (In Charge of Risk Management and Legal and Internal Control and Environmental Health and Safety) at Ebara, manages the financial health and regulatory compliance of the global machinery operations. The Chief Revenue Officer architects robust risk management frameworks to protect the company against market volatility and legal liabilities. By integrating internal controls with environmental health and safety protocols, Nakayama ensures that all manufacturing processes meet international standards. This role involves balancing revenue growth with strict adherence to corporate governance and safety mandates. Toru Nakayama oversees the alignment of legal strategies with the broader business objectives of the organization. Through the implementation of comprehensive safety and compliance programs, the Chief Revenue Officer mitigates operational risks across the global network. Ultimately, Nakayama secures the financial stability of the company by fostering a culture of accountability, safety, and rigorous legal oversight.

    Hiroyuki Kowase - Executive Officer Chief Information Officer (In Charge of Information and Communication System) and Division Executive, Information and Communication System Division

    Hiroyuki Kowase, the Executive Officer Chief Information Officer (In Charge of Information and Communication System) and Division Executive, Information and Communication System Division at Ebara, directs the digital transformation of the industrial machinery enterprise. The Chief Information Officer architects scalable communication systems that support global manufacturing and service operations. By modernizing the information infrastructure, Kowase enables seamless data flow between the semiconductor production units and the broader corporate network. This leadership role involves managing complex IT projects that enhance operational efficiency and cybersecurity across all regional divisions. Hiroyuki Kowase oversees the integration of advanced software solutions to optimize the design and maintenance of pumps, compressors, and chillers. Through the strategic deployment of communication technologies, the Chief Information Officer drives digital innovation. Ultimately, Kowase ensures that the company leverages data-driven insights to maintain a competitive advantage in the global industrial goods market.

    Akihiro Osaki - Executive Officer Chief Human Resources Officer (In Charge of Human Resources and Safety and Labor Management and Human Resource Development) Division Executive, Human Resources Division

    Akihiro Osaki, the Executive Officer Chief Human Resources Officer (In Charge of Human Resources and Safety and Labor Management and Human Resource Development) Division Executive, Human Resources Division at Ebara, manages the talent strategy and workforce development for the global industrial machinery company. The Chief Human Resources Officer architects programs that prioritize safety, labor management, and professional growth for the entire organization. By aligning human capital with the company's engineering goals, Osaki ensures that the workforce possesses the technical expertise required for precision machinery and environmental systems. This leadership role involves overseeing labor relations and safety protocols across international operations. Akihiro Osaki drives initiatives that foster a culture of innovation and quality. Through the implementation of comprehensive development frameworks, the Chief Human Resources Officer strengthens the organizational capacity to meet evolving market needs. Ultimately, Osaki secures the long-term success of the company by cultivating a highly skilled and safety-conscious global workforce.

    Stephen Reynolds - Global Director, Strategic Sed

    Stephen Reynolds, the Global Director, Strategic Sed at Ebara, architects the long-term business development strategies for the global industrial machinery portfolio. The Global Director, Strategic Sed identifies emerging market opportunities and drives initiatives to expand the company's presence in key industrial sectors. By analyzing market trends and competitive dynamics, Reynolds ensures that the organization remains aligned with the evolving needs of global infrastructure and environmental systems. This leadership role involves coordinating with regional teams to implement strategic growth plans. Stephen Reynolds oversees the development of partnerships that enhance the company's market reach and technical capabilities. Through the execution of strategic business development projects, the Global Director, Strategic Sed supports the company's mission to provide innovative solutions. Ultimately, Reynolds secures the company's future growth by identifying and capitalizing on new opportunities within the industrial goods and machinery industry, ensuring sustained market impact and long-term value creation.

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    Frequently Asked Questions Regarding Ebara Top Executives and Leadership Team

    Who leads Ebara?
    Ebara is led by Donaldo Guerrero (Gerente General- Chief Executive Officer), along with executives such as Masayuki Kai (Executive Officer President, Infrastructure Company) and Isao Nambu (Executive Officer President, Precision Machinery Company Division Executive, Equipment Division).
    Who is part of Ebara’s executive team?
    The executive team of Ebara includes leaders such as Donaldo Guerrero (Gerente General- Chief Executive Officer), Masayuki Kai (Executive Officer President, Infrastructure Company), Isao Nambu (Executive Officer President, Precision Machinery Company Division Executive, Equipment Division) and other senior executives.
    How many executives does Ebara have?
    Ebara has 8 executives leading key business areas.
    What roles are included in Ebara’s leadership team?
    The leadership team of Ebara includes roles such as Gerente General- Chief Executive Officer, Executive Officer President, Infrastructure Company, Executive Officer President, Precision Machinery Company Division Executive, Equipment Division, President, Executive Officer Chief Revenue Officer (In Charge of Risk Management and Legal and Internal Control and Environmental Health and Safety).