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Meet the Team

Greenleaf Leadership

We are an experienced company of trusted advisors and consultants that can add value to your business and bottom-line. Our company believes in family and our family environment consists of a culture that encourages creative thinking, personal growth, respect and trust in each other.

Kevin Siebrecht, CEO and President

Co-founder and CEO of Greenleaf Energy Solutions, Kevin has delivered energy efficiency upgrades in nearly a billion square feet across North America. Kevin brings over 15 years of experience in the industry providing turnkey solutions, top quality, real ROI and dedicated customer service. He believes in family, and Greenleaf's family environment consists of a culture that encourages creative thinking, personal growth, respect and trust in each other. Prior to co-founding Greenleaf Energy Solutions, Siebrecht was the President of Broadstar Wind Corporation, an innovative renewable energy company exploring small distributed wind solutions for sustainably positioned commercial and industrial customers. Kevin got his start in the energy industry as one of the founders and principals at Alliance Energy Solutions. Alliance Energy Solutions (AES) was a very successful and progressive lighting management company that in 2009 became the first ever service-based acquisition of the publicly-traded, Fortune 500 industrial supply company W.W. Grainger.

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George Porto, Chief Financial Officer

George serves Greenleaf Energy Solutions in several key capacities including; accounting, profitability, forecasting, information technology, overseeing procurement, sourcing and supervising deal development teams, while effectively managing the ongoing office dynamics of a thriving service company. Prior to co-founding Greenleaf, Porto had over 20 years of accounting experience in service and construction businesses. He wrote computer training manuals used by the Academy of Learning for Peach Tree accounting and QuickBooks. George was recruited to Alliance Energy Solutions to upgrade and expand key initiatives surrounding the scope of work platform, and he was responsible for Accounts Receivable Accounts Payable, eventually reporting revenue ($29M) to the parent company W.W. Grainger post acquisition.

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Michael Mastriano, Chief Operating Officer

As Chief Operating Officer, Michael oversees the value stream pipeline for large and complex projects at Greenleaf Energy Solutions. Michael has previous experience growing Alliance Energy Solutions revenue from $4 million to $24 million in just four years. During his time at Hudson Gas and Electric, he oversaw day to day operations, as Program Manager. Michael delivered a three-year program goal in just 18 months resulting in $17 million in revenue and completing 2,200 installations resulting in 50 MWH in raw energy savings. Mastriano worked as a plant manager for several companies in the advertising specialty field, where he oversaw the activities of 200 direct and indirect employees. He is a current member of the Association of Energy Services Professionals, Association of Energy Engineers, and has earned the credentials of CEM (Certified Energy Manager) and CLEP (Certified Lighting Efficiency Professional.)

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Fabricio Vial, Vice President Business Development

Fabricio serves Greenleaf Energy Solutions (GES) in various roles including; Operations, Customer Service, Technical Specification, Lighting Layout, Electrical Systems, New Products Development, while managing a thriving Business Development Team. Prior to joining GES as a partner, Fabricio has worked in the electrical and lighting industry for more than 20 years. He designed and installed electrical systems and controls and managed over 100 data and fiber optics installations for the USPS. In 2002, he opened his own electrical company that has served over 8000 customers with excellence and pride. He holds Master Electrical Licenses in 3 states and various counties.

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Samantha Baxter, Account Management Manager

Samantha joined Greenleaf in 2015 as a Program Administrator she oversaw a $2 million incentive program with Central Hudson Gas & Electric that offered free LED Lighting upgrades for municipal buildings.  She was responsible for coordinating assessments and installations with Central Hudson Gas & Electric, our customers and contractors. Since then Samantha was promoted to a critical leadership role as Account Management Manager, she oversees a $16 million pipeline and manages the day to day activities of our Account Management Team. Samantha also manages the logistics for most of our Key Accounts and she is an integral point of information flow throughout all of the disciplines of Greenleaf Energy Solutions. 

Samantha graduated Cum Laude from High Point University, North Carolina with a B.S.B.A. in Business Administration.

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