Gaelan leads marketing and business development for GMT and has a bachelor's degree in Journalism and Economics from Washington and Lee University. He has more than 20 years experience in senior leadership and consulting roles with companies such as Infopia, Green Mountain Coffee/Keurig, groSolar, 1% for the Planet, Seventh Generation and Agrilab Technologies.

His work in composting began in 2008 when he founded the non profit Compost Power Network in Vermont in partnership with Highfields Center for Composting and several universities to develop best practices for heat-recovery from composting systems, including several successful compost-heated greenhouse projects. He taught composting workshops for Yestermorrow Design/Build School in Vermont for several years, and wrote The Compost Powered Water Heater book for WW Norton publishing company in 2013. In his free time he enjoys all forms of outdoor recreation and quality time with his family.

He has lived and worked across the US and other countries including Jamaica, Chile, Serbia and Mexico and spent two years living in an antique Airstream trailer with his wife and son while visiting compost facilities and farms all over the US. His favorite compost recipe is maple bark mulch combined with bedded-pack dairy manure and pine-shavings.