About Okapi Environmental Services

Okapi Environmental Services (OES) operates as a Management Company which provides leadership and operational support to drive responsible, sustainable, and profitable growth for the entities for which Bob Gregory is the Chairman, President & CEO. OES also has the unique means to offer sustainability consulting services to other organizations to help them in their sustainability journey. OES currently manages the following (in alphabetical order):

  • Texas Disposal Systems Landfill, Inc.
  • Texas Landfill Management, L.L.C.
  • Txalloy, Inc.
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Our Leadership

Meet the driving force behind Okapi Environmental Services – our leadership team. Comprising visionaries and industry experts, our leaders bring a wealth of experience to guide OES towards sustainable growth & profitability. Professionals from OES have worked with Fortune 100 companies, leading national and regional brands, state-of-the-arts sports and entertainment venues, educational organizations and more.

Bob Gregory

Bob Gregory

Chairman, President & CEO

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Matt Hutchings

Chief Operating Officer

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Tom Mistler

Executive Vice President & Chief Financial Officer

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Clint Harp

Executive Vice President

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Adam Gregory

Vice President

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General Counsel

Gary Newton

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Janice Brewster-Martinez

Director of Human Resources

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Ken Franke

Director of Finance & Controller

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Spencer Williams

Director of Information Technologies

Jason Garza

Jason Garza

Director of Safety