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Corporate Headquarters

967 Mabury Road
San Jose, CA 95133
(408) 548-5050
(408) 548-5052

Our Location

Our Team

At ACTenviro, we strive to be at the vanguard of the environmental services industry’s push toward a more sustainable future. We also take pride in our best-in-class level of employee satisfaction. These convictions are reflected not only in the commendations we receive, such as having been recognized as one of Inc. magazine’s top 50 workplaces in the United States in 2017, but, as importantly, in our employees’ deep commitment to providing the best possible service to our customers.

ACT employs the best and the brightest in the industry. Our service group is trained extensively on all required programs, as well as additional programs ACT has put into place internally. ACT provides all personnel, equipment, materials and other resources required to service your environmental needs. Our senior management team has over 200 years of industry experience.

Walter H. Singer, Chairman

The Chairman and Founder of ACTenviro, Walter H. Singer has led the company to become a market-leading environmental presence in California. ACTenviro has experienced consistent financial growth while having an…

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Tim Smith, CEO

With a diverse skillset ranging from business development and strategic planning to change management and organizational leadership, Tim has spent more than a decade growing companies and their markets while…

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Tyler Kopet, Chief Financial Officer

Tyler’s wide range of expertise spans not only traditional accounting and finance but acquisitions, human resources, I.T., risk management and strategic planning. Tyler has spent more than two decades financing…

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Pasquale M. Paduano, Vice President of TSDF and Fleet

Pasquale has over 30 years of successful operations management and sales leadership experience in the environmental management services industry. He is responsible for operational excellence for all ACT Branches and…

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Shawn Ball, Vice President of Sales

Shawn has spent over 18 years in the environmental industry, with experience in operations management and sales leadership. He also has extensive experience with business development and creating successful, high-functioning…

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Krista Wood Harsono, Director of Compliance

As ACT’s Corporate Compliance Director, Krista brings more than 12 years of experience in the environmental industry. Under Krista’s guidance ACT has received several commendations and awards for its stellar…

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Jeff Ruhl, Branch Manager – San Diego

Jeff Ruhl started his career in the environmental industry with ACT over 13 years ago. Jeff was hired as a technician but quickly moved through the ranks, working as a…

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Bruce Hehemann, Branch Manager – Albuquerque

Bruce Hehemann started his hazardous waste career in 1988 as a lab pack / depack chemist. He began work as an outside service manager in 1991. Before coming to ACTenviro,…

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Keo Chen, Branch Manager – Portland

Keo Chen started his career in hazardous waste management with Clean Harbors in 2013 as a labpack chemist, after receiving his Bachelor of Science degree in chemistry. Keo quickly moved…

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Frank Sanchez, CHMM, Branch Manager – Phoenix

Frank is responsible for business development and operations in Arizona. He has over 30 years’ experience in the environmental services and hazardous waste management industry, dating back to 1984, when…

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Fernando Montes, Branch Manager – El Paso (Chaparral, NM)

Fernando Montes began his career in the hazardous waste business in California 24 years ago, originally working in the field as a Technician and Chemist. Fernando subsequently moved to New…

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Chris Dean, Contractor Manager

Chris' promotion to Onsite Contract Manager is well deserved based on his tenure since 2006 as Characterization Chemist. He joined ACT in February 2012 at Sandia. Prior to 2006, he…

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