Clean Harbors Executive and Leadership Team

Michael Battles, the Co-Chief Executive Officer at Clean Harbors, directs the overarching corporate strategy and operational execution for the organization. This leadership role involves managing the complex network of hazardous waste treatment facilities and industrial service operations across North America. By aligning business units with long-term sustainability goals, the Co-Chief Executive Officer ensures consistent growth and regulatory excellence. Michael Battles maintains close collaboration with the Board to drive capital allocation and market expansion initiatives. Through rigorous oversight of environmental remediation projects, the Co-Chief Executive Officer strengthens the company's position as a leader in waste management. This executive focus on operational efficiency supports the broader mission of providing safe, compliant solutions for industrial clients. Ultimately, Battles secures the financial and operational health of the enterprise while navigating evolving environmental regulations and market demands.

David Kellner, the Chief Financial Officer, Environmental Services at Clean Harbors, manages the financial architecture specifically for the environmental services division. This role involves analyzing revenue streams from waste collection, transportation, and disposal operations to optimize profitability. The Chief Financial Officer, Environmental Services monitors cost structures across the integrated network of facilities to ensure maximum operational efficiency. By providing data-driven insights, David Kellner supports strategic decision-making regarding capital investments in recycling and treatment technologies. This leadership function requires constant coordination with operational managers to maintain strict adherence to budgetary targets and regulatory financial reporting standards. Through precise fiscal management, the Chief Financial Officer, Environmental Services enables the company to scale its environmental remediation capabilities effectively. Kellner drives financial stability by balancing the high costs of hazardous waste management with the need for competitive pricing in the industrial services market.

Eric Dugas, the Executive VP & Chief Financial Officer at Clean Harbors, manages the global financial health and capital strategy of the entire organization. This role involves overseeing corporate accounting, treasury functions, and investor relations to ensure transparency and long-term value creation. The Executive VP & Chief Financial Officer directs financial planning and analysis to support the company's expansion into new environmental markets and service lines. By maintaining a strong balance sheet, Eric Dugas provides the necessary resources for facility upgrades and sustainability initiatives like oil recycling. This leadership position requires constant interaction with the Board to report on fiscal performance and risk management. Through disciplined financial oversight, the Executive VP & Chief Financial Officer enables the company to navigate economic fluctuations while maintaining high standards of environmental safety. Dugas secures the capital required to sustain the company's integrated network of waste management operations.

Rebecca Underwood, the Executive VP & President, Facilities at Clean Harbors, directs the operational performance and safety standards of the company's extensive network of treatment, storage, and disposal facilities. This role involves optimizing the throughput of hazardous and non-hazardous waste processing to meet stringent regulatory requirements. The Executive VP & President, Facilities oversees maintenance protocols and capital improvements to ensure facility longevity and operational reliability. By managing regional facility teams, Rebecca Underwood drives consistency in service delivery across the company's broad geographic footprint. This leadership function requires close collaboration with environmental compliance officers to mitigate risks and uphold safety protocols. Through the strategic management of physical assets, the Executive VP & President, Facilities supports the company's mission of responsible resource management. Underwood ensures that every facility operates at peak efficiency, directly contributing to the organization's ability to handle complex environmental remediation projects for government and industrial clients.

Jeroen Diderich, the President, Environmental Sales & Service at Clean Harbors, leads the commercial strategy and client engagement efforts for the company's core service offerings. This role involves expanding the customer base for waste collection, transportation, and industrial cleaning services across diverse market sectors. The President, Environmental Sales & Service directs sales teams to identify new opportunities in environmental remediation and recycling solutions. By fostering strong relationships with industrial partners and government agencies, Jeroen Diderich ensures the company remains the preferred provider for complex waste management needs. This leadership position requires constant monitoring of market trends to adapt service delivery models to changing environmental regulations. Through the execution of targeted sales initiatives, the President, Environmental Sales & Service drives revenue growth and market penetration. Diderich aligns the sales organization with operational capabilities to ensure that client expectations for safety and compliance are consistently met.

Sharon Gabriel, the Executive VP & Chief Information Officer at Clean Harbors, architects the digital infrastructure supporting the company's vast environmental and industrial service operations. This role involves deploying advanced data systems to track hazardous waste logistics and ensure real-time regulatory compliance across all facilities. The Executive VP & Chief Information Officer oversees cybersecurity initiatives to protect sensitive client data and critical operational networks. By integrating digital tools into waste treatment and recycling workflows, Sharon Gabriel enhances operational transparency and service delivery speed. This leadership position requires close partnership with other C-suite members to align technology investments with corporate growth objectives. Through the modernization of internal platforms, the Executive VP & Chief Information Officer drives efficiency in emergency spill response and industrial maintenance scheduling. Gabriel ensures that the technological backbone of the organization remains robust, scalable, and capable of meeting complex environmental challenges.