Vicky Keramida, Ph.D. 

CEO & Chief Technical Officer

Brian Rockensuess

President

Brian Harrington 

Senior Vice President,
Land Services

Mack Overton 

Senior Vice President,
EHS Compliance

Wesley Fleming, MBA, P.E.

Senior Vice President,
Operations & Compliance Engineering

Nick McCreary, M.S.

Senior Vice President,
Sustainability

Kristen Belcredi, P.E., C.H.M.M., ISO Auditor 

Senior Vice President,
Compliance Engineering & ISO Services

Jim Alvarez, LPG

Vice President,
Operations

Anisa Chowdhury, CPA, CA

Vice President,
Corporate Sustainability & Assurance

Steve Cobb, MBA 

Vice President,
Land Services

Daniel Engling, M.S., CIH, CSP

Vice President,
Safety and Industrial Health Services

Ty Giddens, CESSWI

Vice President,
Renewable Energy Compliance Services

Amber Greaney, MPA, LEED GA, ENV SP

Vice President,
Sustainability

Kathy Moore

Vice President,
Air Services

Emilee O’Neill

Vice President,
Reporting Services & Livable Cities

Maddy Osswald, MBA

Vice President,
Operations, Sustainability

Jim Schifo, P.E.

Vice President,
Industrial Services

John Wellspring

Vice President,
Air & Environmental Compliance Services 

Xuqing Xiong, M.S., P.E.

Vice President,
GHG Services

Chloe Zachmanoglou

Vice President,
Marketing & Communications