Green Banyan Consulting is a multi-disciplinary energy engineering consulting firm which was started in 2018. GBC offers services including energy efficiency project inspection and savings calculation review, benefit cost analysis, utility program support, energy technology research and design, HVAC design, and energy auditing. The firm currently has 4 employees and several on-call sub-consultants that can be used based on project demand.

Since 2018, GBC staff have completed over 500+ field inspections and desk reviews across CT, MA and NY projects.