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Founded in 2013, CleanBay Renewables is an enviro-tech and renewable energy company that harnesses science, technology and economics to tilt the balance back in favor of nature, while protecting the agricultural sector that provides a vital service to humanity.


Our vision is to create a sustainable infrastructure and economic model for the provisioning of energy, the processing of waste, and the return of nutrients to nature’s buffers while operating in symbiotic harmony with the food production industry and the environment that supports it.
Our Team


Thomas Spangler

Thomas Spangler
Executive Chairman

  • Co-founder of CleanBay Renewables
  • Principal at Velos and Spangler Strategic Advisors
  • Former senior Department of Defense official and electrical engineer 
  • Entrepreneur, startup investor and advisor to multiple defense, aerospace and investment concerns 
Donal Buckley

Donal Buckley
Chief Executive Officer

  • Over 20 years of international corporate experience (14 years in biomass) 
  • Prior CEO experience in AD 
  • Completed an executive education program at Stanford GSB 
  • Biomass industry veteran with scientific background 
  • International project finance experience

Jason Levine

Jason Levine
Chief Business Officer & GC


  • Co-founder of CleanBay Renewables
  • Over 30 years of finance and growth stage operating experience including roles of CEO, CFO, General Counsel and corporate development executive
  • Held senior positions a Boston University’s Community Technology Fund, FBR, Tucker Anthony and Merrill Lynch 
Kevin Hill

Kevin Hill
Chief Financial Officer

  • Over 20 years of commercial real estate private equity and investment management experience with companies, including:
    • Continental Reality Corporation 
    • Javelin 19 Investments
    • The Meridian Group 
    • New York Life Investment Management 

Kristi Shaw

Dr. Kristi Shaw
Chief Environmental Strategist

  • Over 13 years of research experience in organizations like the Maryland Department of Natural Resources
  • Completed her Ph.D. in a microbial ecology laboratory, where she investigated bacterial community composition in collaboration with a NOAA Assessment of Chesapeake Bay sub-estuaries 

Shawn Freitas

Dr. Shawn Freitas
Chief Technology Officer


  • Professional experience in a variety of organizations related to petroleum and renewable fuel/chemical production 
  • Ex TRI, owner of the largest Fischer Tropsch biorefinery in North America 
  • Considerable experience with lab and commercial-scale biomass and waste conversion technologies and analysis
Bryan Train

Bryan Train
Chief Integration Officer

  • Over 20 years of international corporate and start-up experience 
  • Led international business development for Globomass 
  • Managing Director of the Worsham Group 
  • Co-founder and director of Asha Zuri Participacoes
  • Executive positions at Coloplast, GMAC and DuPont de Nemours

Courtney Spangler

Courtney Spangler
Director of Government Affairs

  • Over 20 years of experience advising on environmental stewardship and economic development matters
  • Prior experience as a land use expert for development portfolios and has advised on communication strategy and marketing

Alan Gilbert

Alan Gilbert
Chief Operations Officer

  • More than 20 years of international corporate experience (14 years in renewables and biomass)
  • Prior senior management in the agri-food sector
  • Successfully restructured a Latvian biomass business and established the AD division, which became one of the top AD solutions providers into the UK.

Christi Hudgins

Christi Hudgins
Director of Human Resources

  • Over 14 years human resources, communications and project management experience (7 years with start-up companies)
  • Specializes in aerospace and clean energy sectors
  • Held positions at NOAA and NASA Satellite Launch Operation
  • Society of Human Resource Management – Certified Professional (SHRM-CP)
William Taylor

William Taylor
Director of Construction Management

  • Over 40 years of experience in construction, specializing in the infrastructure needed for site development
  • Operates according to OSHA regulations and has earned an “Outstanding” rating during inspections of jobs
  • Certified in Erosion and Sediment Control