Meet The Team

  • President & CEO

    Don Roussinos

    Don Roussinos is the President & CEO of Controlled Environment Systems, LLC (CES). Mr. Roussinos is also an Operating Partner at Adelphi Capital Partners who led the investment in CES.

    A leader of medium to large enterprises, Don has enabled CES to achieve the next level of success while driving discipline and growth into the organization. Don brings over 25 years of senior executive experience in strategic planning, business development and project management.


    He was recently the President of Rolls-Royce Naval Marine suppling power and propulsion systems to naval forces worldwide. He also served as President of L-3 Maritime Systems, a preeminent supplier of automation, communication and navigation systems. Additionally, he has served on boards for industry associations and consortiums of advanced technology and manufacturing.


    Don received a Master of Management degree from Cambridge College and a Bachelor of Science in Electronic Engineering from Wentworth Institute of Technology. He completed an Executive Leadership Program at University of Oxford and is a Certified Lean Six Sigma Green Belt.

  • Senior VP

    Robert A. Adams

    For nearly 33 years, Robert Adams has been a visionary leader of CES. He exemplifies the CES culture of the “worker’s heart” and ownership thinking that has enabled the growth and success of the company.

    His willingness to expand into new markets related to the company’s core business of cold storage construction has created both growth and stability.


    The new CES Gro-AHU air handler product for indoor plant grow rooms represents his goal of expanding into new opportunities that utilize existing company capabilities.


    A voracious learner, Robert continually expands his knowledge of best practices and new technology to make CES the best and most profitable provider in the marketplace.

    Robert received a BS in Chemistry from University of Houston in 1973, and for fifteen years has served on the Dean’s Advisory Board for the College of Natural Science and Mathematics at UH. He also serves as a Board Member for Zond, LLC, a high-tech company in thin film coatings, and Zea Biosciences, a startup company in the indoor plant growth market.


    Outside of work he flies his single engine Mooney aircraft for both business and pleasure, and plays competitive tennis and baseball on local club teams. He lives in North Easton, MA with his wife and two children, and somehow finds time to enjoy his family life.

  • Senior Vice President

    Mark Barrett

    Mark Barrett is Senior Vice President  and Founder of Controlled Environment Structures, LLC. He is the “nuts and bolts guy” and a hard working individual who strives for excellence in every area of the company. Mark is an experienced executive who handles much of the day-to-day leadership of CES. This includes maintaining customer relationships, overseeing sales strategy, and managing CES’s talented workforce.


    Mark is a Blue Hill Vocational School cum laude graduate and a Northeastern University Engineering alumnus. He is a current member of the International Association of Cold Storage Contractors and previously served as a member of the Board of Directors. He has proudly sold and managed construction of some of the largest cold storage and food processing facilities in the northeast.


    A licensed Massachusetts builder, he and his wife Sharon live in Weymouth, MA, and they have two beautiful adult married children. They love to travel the world and frequently visit their second home in Naples, Florida. Mark has a love / hate relationship with the game of golf and of course is an avid Boston sports fan.

  • Business Development & Marketing

    Dave J. McGrath

    Dave started his life in construction at the age of fourteen. Working at CES since 2013, Dave has an understanding of what challenges industry leaders face like keeping projects on time and under budget while catching the small details that lead to major problems.


    Dave is driven by values such as respect, teamwork and professional transparency.

  • Sales Engineer / Project Management

    Mark A. Busharis

    With a successful track record of over 25 years of sales / project management and business development experience in the controlled environment industry, Mark has consistently grown sales and developed strong business relationships for CES, while assisting his customers in growing and expanding their businesses. Mark is considered a trusted advisor by his clients, and is known for his consultative and comprehensive approach to each project.


    Mr. Busharis resides in Mansfield Massachusetts with his wife, and is the father of three adult children.

  • Vice President - Special Environments

    Rick Coan

    Rick has been with CES since 1993.

  • Sales Engineer / Project Management

    Edward B. Montani

    Ed joined CES in 1990.

  • Junior Salesman

    Paul Faxon

    Paul joined CES in 2008. His main job is to oversee all construction activity in the field. He takes on any job that comes his way. His strong skills come from his director experience in high-tech and construction roles.


    He resides in Bradford Massachusetts with his wife, and they both enjoy riding their Harleys whenever they get a chance.

  • Director of Operations

    Jim Waterman

    Jim joined CES in 2004.


Apply Today

Join the best in the business working on great projects with world class benefits. Need a new challenge? Want to work doing jobs that keep your career sharp? Reach out and learn more: 


A Great Environment for Your Career!



Environment Systems