Our Leadership Team

Guided by veteran executives who pioneered the RNG space,

Viridi’s team is a leader in waste-to-energy project development. Collectively, the team has more than 100 years of experience developing and operating energy assets and has successfully developed more than 30 RNG projects.
With significant equity backing led by Warburg Pincus and additional funding from Green Rock Energy Partners, we are well-positioned to identify strong opportunities and invest quickly, leveraging our expertise and capital to unlock greater value.

Andy Kelleher

Executive Chairman

Dan Crouse

Chief Executive Officer

Jake Crouse

Executive Vice President

Andy Kelleher is a seasoned energy executive with significant experience in the trading sector. In addition to his strategic leadership role as Executive Chairman at Viridi, Kelleher is co-founder and Managing Partner of Green Rock Energy Partners. Previously, he held senior positions at Glencore, JP Morgan and ConocoPhillips.
With more than 15 years of experience in the landfill gas-to-RNG industry, Chief Executive Officer Dan Crouse joined Viridi in 2022 from Air Liquide, where he was responsible for development, construction, and operations activity across the United States. He also served as CEO of Air Liquide Advanced Technologies, U.S., overseeing all U.S.-based RNG businesses. Previously, Crouse led Keystone Renewable Energy, a closely held business focused on biogas development, where he was CEO.
Jake Crouse has worked in the landfill gas-to-RNG industry for the past 19 years and was responsible for nine landfill gas-to-RNG projects, overseeing each project from development through to operations. Crouse was previously the Vice President of Investment Development for Archaea Energy, Director of Biogas for Air Liquide, and President of Keystone Renewable Energy.

Mark Cresanti

Executive Vice President

Corina Sheridan

Executive Vice President

Ashley Garber Browner

General Counsel

Mark Cresanti joined Viridi with more than two decades of operations leadership experience and several recent years of work in the biogas-to-RNG space. From 2020 to 2023, he was Director of Operations for RNG Operating Assets at Air Liquide Advanced Technologies, responsible for managing the operations team supporting new and existing biogas-to-RNG projects nationwide. Prior to that, he was the Northeast Director of Operations for the same firm and also worked for The Dow Chemical Company.
Corina Sheridan is Executive Vice President of Business Development at Viridi, where she leads the company’s efforts to expand renewable natural gas projects and partnerships across North America. She brings more than 20 years of experience in energy and sustainability, most recently guiding business development for waste-to-energy and renewable fuel initiatives.
Corina has worked with municipalities, utilities, and private partners to advance projects across landfill gas, digesters, organics diversion, and agricultural waste sectors.
Ashley Garber Browner is General Counsel of Viridi Energy, where she leads the company’s legal, regulatory, and governance functions. She brings more than 15 years of experience advising public and private companies across the energy sector. Her prior roles include General Counsel of LF Bioenergy and Nine Point Energy and senior legal positions at Kinder Morgan and in private practice.