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Executive Management Team

Frank E. Celli

Chief Executive Officer

Mr. Celli is a lifelong waste industry veteran. Most recently he was co-founder and CEO of Interstate Waste Services from October 2000 until November 2006, during which time the company achieved growth of over $150 million in revenue. During his time at Interstate Waste he was responsible for all aspects of the business including collection, recycling, landfills and emerging technologies.

After selling his interests in Interstate Waste he transitioned to BioHiTech America. With over 25 years of Waste Industry experience, Mr. Celli has leveraged his knowledge of the traditional waste industry to facilitate the development of the Eco-Safe Digester and BioHiTech Cloud to begin the transformation of the organic waste industry.

He also serves as a director and officer of Entsorga West Virginia, the first resource recovery facility currently being constructed in the United States that will utilize Entsorga’s proprietary HEBioT mechanical biological treatment (“MBT”) system. Mr. Celli graduated from Pace University’s Lubin School of Business.

Robert A. Joyce


Bob has spent the last 30 years in the technology and engineering workplace. His diverse background includes design and development of one of the original 3D CAD systems, implementation support of some of the worlds largest cable networks, development of patent pending mobile location technologies and leadership of Inc 500 listed private companies. Previous employment includes industry leaders Arthur D. Little, Inc., Sun Microsystems, Perfect Order and Versatile Systems.

In Bob's role as President, his responsibilities include day to day management of the company’s expanding channel partner network, research and development direction, engineering, manufacturing execution, sales growth, marketing and service to our customers.

Bob is a trustee of Harrisburg University and sits on the boards of The Technology Council of Central Pennsylvania, WorkXpress and Telkore. He resides in central PA with his wife and two sons.

Brian C. Essman

Chief Financial Officer

Mr. Essman has over 30 years of experience as a senior financial executive with a wide range of industry experiences that have included strategic, operational and financial leadership roles.

Most recently, he was the CEO of Data Communiqué, Inc. a Havas Company from 1997-2014 where he was responsible for overall leadership, including strategy and tactics of the Software-as-a-Service company. From 1997 to 2007 he was COO – CFO and contributed to the growth of the company’s technology/data, printing and letter shop services and developed pricing and cost structures that created efficiencies within the company that increased gross margin rates and technology sales threefold.

Mr. Essman was previously the Chief Financial Officer at a Fidelity portfolio company and a Senior Manager and CPA at PricewaterhouseCoopers.

Brian graduated with a BS in Accounting with High Honors from Boston College’s School of Management. 

William M. Kratzer

Chief Technology Officer

Bill is a 20-year veteran of the IT field with extensive experience in large scale web-infrastructure, machine-to-machine computing, and mobile touch devices. In prior roles, Bill has designed, built, and supported software used by some of the world’s largest and most-demanding customers, including Comcast, GE Capital, HSBC, and MBNA Canada to name a few.

At BioHitech, Bill serves as the Chief Technology Officer, leading the vision and execution of BioHitech’s machine-to-machine and Big Data technology strategy.

Bill holds a Bachelors degree in Computer Science and Engineering from the Pennsylvania State University. He currently resides in Harrisburg, Pennsylvania with his wife and two children.

Dennis Soriano

Director of Business Development

Dennis has 43 years of experience in the Waste, Recycling and Concrete industries. Dennis has held executive level management positions at Waste Management Inc. at both the regional and corporate levels. Additionally, he served as COO of Greenstar North America and most recently CEO of Waste to Water LLC. Dennis has extensive experience in operations, business development and management of municipal contracts. Mr. Soriano’s career in the Waste and Recycling Industries has focused on working with public, private and municipal entities on projects aimed at the long-term preservation of our environment.

As Director of Business Development for Entsorga North America, Dennis will cooperatively work with the management team to advance their efforts to provide alternatives for the disposal of waste into landfills. Entsorga’ s long-term goal is the development of a network of MBT processing facilities that will provide an acceptable alternative to landfill disposal, while producing an SRF fuel substitute for coal. Mr. Soriano will draw on his years of experience to help the Entsorga team formulate and implement a successful marketing plan to achieve their goal of providing long-term sustainable solutions.

Dennis and his wife live in Dutchess County, New York and have three grown children and 5 grandchildren.

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