Our Leadership

In an industry with a reputation for unpredictability, consistency is a competitive advantage. ENTACT’s average management tenure is 18 years, a testament to the strength and stability of our company. 

Dean Pisani, Chief Executive Officer

Dean Pisani

Chief Executive Officer

Dean Pisani joined ENTACT nearly 30 years ago as one of the company’s original seven owners. During his tenure at ENTACT, Mr. Pisani has served in quality assurance and quality control, led teams as a project manager and spearheaded the opening of ENTACT’s regional office in Chicago.

In 2000, Mr. Pisani was named ENTACT’s Chief Executive Officer.

Prior to ENTACT, Mr. Pisani worked for Xerox Corporation in various sales roles. Mr. Pisani graduated from the University of Colorado in Boulder with an economics degree.

Erik Gehringer, Chief Operations Officer

Erik Gehringer

Chief Operations Officer

As Chief Operations Officer, Erik Gehringer is responsible for the company’s operations, engineering efforts and the overall success of ENTACT projects. He brings more than 20 years of environmental, geotechnical and civil construction experience to ENTACT.

Before joining ENTACT in 2002, Mr. Gehringer worked at IT Corporation. Mr. Gehringer attended Rutgers University, where he earned his civil engineering degree.

Andy Klemm, Chief Financial Officer

Andy Klemm

Chief Financial Officer

Andy Klemm was named ENTACT’s Chief Financial Officer in 2017 and is responsible for managing the company’s financial planning and strategies. His more than 20-year career includes a variety of financial and operational roles in the U.S. and Europe.

Mr. Klemm began his career at Arthur Andersen before serving 12 years in general manager and CFO roles for SPX Flow, a publicly traded global supplier of engineered products and process solutions. He also served as CFO of a private equity-backed portfolio company.

A certified public accountant, Mr. Klemm graduated from Illinois State University with degrees in accounting and management information systems (MIS).

Scott Chafin, Chief Development Officer

Scott Chafin

Chief Development Officer

Scott Chafin started his career at ENTACT more than 26 years ago, helping to grow the company from a startup to the premier provider of environmental remediation and geotechnical construction services in the U.S.

He currently serves as the company’s Chief Development Officer, overseeing business development, marketing, talent management and corporate responsibility efforts for the organization.

Mr. Chafin graduated from Washington University in St. Louis with a political science degree.