Gregg is CEO of Growcentia, a Ft. Collins, CO based company that manufactures organically derived microbial plant growth stimulants that enable growers to maximize the yield and health of various crops.  Mammoth P® – Growcentia’s first product, was developed by its founders at Colorado State University and is the leading microbial biostimulant in the cannabis market. Mammoth P naturally liberates phosphorus and micronutrients to maximize plant growth and bud yields.


Prior to joining Growcentia Gregg founded Charlemagne Global Advisory a strategy and operations advisory firm for both for profit and not for profit entities. Projects and initiatives of CGA have been in and around the incubation and acceleration of early and development stage start-up ventures as well as more mature enterprises. Previous to founding CGA, Gregg was the President and Managing Director of numerous associated companies delivering a broad spectrum of strategic consulting and other professional services. The company was listed twice (both times in the top 10) by INC. magazine in the INC. 500.  Cumulative revenues under Gregg’s presidency exceeded $2 billion.

Keep updated on The Harvest Cup 2019 November 9 and 10th Worcester DCU Center