Below is the business model for Envirofit that Matt and I compiled from research. Our sources are as follows:
https://www.fmo.nl/project-detail/45041
https://www.businesscalltoaction.org/sites/default/files/resources/BCtA_CaseStudy_Envirofit_Web.pdf
https://www.calvertimpactcapital.org/portfolio/list/envirofit-international-inc