Executives/Clean Harbors CEO
Michael L. Battles, CEO of Clean Harbors

Who is the CEO of Clean Harbors in 2026?

Michael L. Battles is the Co-Chief Executive Officer and Co-President of Clean Harbors. Michael has held the CEO seat since April 2023, and was previously Chief Financial Officer - Interim at PerkinElmer.

Updated September 24, 2026
Time in seat
3 years
CEO since April 2023
Years at company
13 years
Joined Clean Harbors September 2013
Career span
36 years
First recorded role January 1990
Summary
  • Michael L. Battles rose through Clean Harbors: Senior Vice President, Corporate Controller and Chief Accounting Officer from September 2013, then Executive Vice President, Chief Financial Officer from January 2016, before taking the CEO seat in April 2023.
  • Michael L. Battles sits on the board of Casella Waste Systems, Inc. (NASDQ: CWST).
  • Michael L. Battles was Vice President Chief Financial Officer - Human Health at PerkinElmer from January 2009 to December 2013.

Current company

Clean Harbors

Clean Harbors is an industrial and water waste management business.

waste managementHeadquartered in NorwellFounded 1980NYSE: CLH

Source: Wikidata
View Clean Harbors headcount

Career and education

Michael L. Battles joined Clean Harbors in September 2013 and has been CEO since April 2023. Before Clean Harbors, Michael was Chief Financial Officer - Interim at PerkinElmer from January 2008 until December 2009.

Career

  1. Clean Harbors2013 to present
    • Member Board of DirectorsAugust 2024 to present
    • Co-Chief Executive OfficerApril 2023 to present
    • Executive Vice President, Chief Financial OfficerJanuary 2016 to March 2023
    • Senior Vice President, Corporate Controller and Chief Accounting OfficerSeptember 2013 to December 2015
  2. Casella Waste Systems, Inc. (NASDQ: CWST)2019 to present
    • Member of the Board of Directors
  3. PerkinElmer2001 to 2013
    • Vice President Chief Financial Officer - Human HealthJanuary 2009 to December 2013
    • Chief Financial Officer - InterimJanuary 2008 to December 2009
    • Vice President - Chief Accounting OfficerJanuary 2005 to December 2009
    • Americas Controller/Technical Accounting Controls and ComplianceJanuary 2003 to December 2005
    • Global Controller - Analytical Instruments DivisionJanuary 2001 to December 2003
  4. Deloitte1990 to 2001
    • Senior Manager

Sources: LinkedIn profile

Education

University of Vermont, BS in Business Administration, Concentration in AccountingSource

Decision makers by function

220+ decision makers at Clean Harbors in Unify, vice president level and above. Choose a function to see who leads it.

Decision maker preview

Top decision makers at Clean Harbors

Vice president level and above, most senior first
Richard WalzerChief Information Security Officer · USA@cleanharbors.com
Patrick OrrSenior Vice President Human Resources · USA@cleanharbors.com
Louis Paress IIISenior Vice President Human Resources · USA@cleanharbors.com
Dan PatzschkeSVP National Business Leader, Technical Services · USA@cleanharbors.com
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Leadership team at Clean Harbors

Michael L. Battles leads a leadership team of 11 published executives. The most recent appointment is Rebecca Underwood as President, Facilities, in seat since August 2023.

Most senior 5 of 11

NameTitleIn seat since
Michael L. BattlesCo-Chief Executive Officer and Co-PresidentMarch 2023
Eric W. GerstenbergCo-Chief Executive Officer and Co-PresidentMarch 2023
Alan S. McKimFounder, Executive Chairman of the Board, and Chief Technology OfficerNot stated
Eric J. DugasExecutive Vice President and Chief Financial OfficerMarch 2023
Sharon M. GabrielExecutive Vice President and Chief Information OfficerOctober 2018

Sources: Clean Harbors 2026 DEF 14A

Frequently asked questions

Who is the CEO of Clean Harbors?

Michael L. Battles is the Co-Chief Executive Officer and Co-President of Clean Harbors. Michael has held the CEO seat since April 2023, and was previously Chief Financial Officer - Interim at PerkinElmer.

When did Michael L. Battles become CEO of Clean Harbors?

Michael L. Battles has been CEO of Clean Harbors since April 2023, according to LinkedIn profile.

What did Michael L. Battles do before Clean Harbors?

Michael L. Battles was Chief Financial Officer - Interim at PerkinElmer from January 2008 until December 2009, according to LinkedIn profile.

How long has Michael L. Battles been CEO of Clean Harbors?

Michael L. Battles has been CEO of Clean Harbors for 3 years, since April 2023.

Who else leads Clean Harbors?

Eric W. Gerstenberg (Co-Chief Executive Officer and Co-President), Alan S. McKim (Founder, Executive Chairman of the Board, and Chief Technology Officer), Eric J. Dugas (Executive Vice President and Chief Financial Officer), Sharon M. Gabriel (Executive Vice President and Chief Information Officer), and 6 more. Source: Clean Harbors 2026 DEF 14A.

Reach Clean Harbors' decision makers

220+ leaders at vice president level and above, with verified work emails and phone numbers in Unify.

Methodology

The seat holder is identified in Unify's professional profile dataset, then confirmed against the company's published leadership page, its SEC filings, and Wikipedia before publication. Career and education rows carry the public document they were taken from. Leadership team membership follows the company's own leadership page; in-seat dates come from filings where available and otherwise from the profile record. Company figures are read from the Unify headcount page for the same company and are profile coverage measures, never company-reported workforce totals. The employee preview lists vice president and senior vice president level profiles by department. No personal contact details are published.

Identity confirmed against Wikipedia, Clean Harbors. Last verified: September 24, 2026.