About
Green Banyan Consulting (GBC) provides energy audits, engineering analysis, and energy efficiency solutions for multifamily and commercial buildings across New York City and the Northeast. We support building owners, property managers, and utility programs with LL97 compliance, energy efficiency upgrades, and third-party technical reviews.

Our team includes Professional Engineers, Certified Energy Managers (CEM), and ASHRAE High-Performance Building Design Professionals with experience conducting 5,000+ field visits and 500+ engineering reviews for large commercial and multifamily projects.

GBC has hands-on expertise identifying, modeling, and implementing energy conservation measures (ECMs) including HVAC upgrades, controls optimization, lighting retrofits, domestic hot water improvements, and renewable energy systems. Our solutions help NYC buildings improve efficiency, reduce operating costs, secure utility rebates, and meet sustainability and LL97 goals.
apartment
10 Years in Business
diversity_3
10 Employees
Building Types Served
Commercial Office
Healthcare
Hospitality
Industrial
Institutional
Mixed Use
Multifamily
Retail
Warehouse
Houses of Worship
Senior Care
Community/Government
Building Sizes Served
< 25K sf
25K-50K sf
51K-200K sf
> 200K sf
Certifications and Licences
AEE Certified Energy Manager (CEM)
Professional Engineer (PE)
Incentive Programs Qualified
Con Edison Commercial and Industrial (C&I)
Con Edison Multifamily Program (MFEEP)
National Grid Commercial
NYC Accelerator
NYSERDA Commercial
Consulting Services
Audits/Study/Consultant
Commissioning
Energy Management
LL84 Benchmarking
LL87 Energy Audit
LL97 Compliance
Sustainability Consulting
Energy Star Certification
Construction Services
Boiler Services
Building Automation & Controls
Building Envelope
EV Charging
Heat Pumps
HVAC
Insulation
LED Lighting
Weatherization
Energy Efficiency Retrofits
Contact
call
Call
location_on
Address
136 Madison Ave, 5 Fl
New York, New York 10016, United States