Sustainable Investment Group | A full-service national LEED solutions provider. LEED consulting, engineering, and training all in-house. Sustainable Investment Group

Sustainable Investment Group (SIG) | National LEED Solutions

You can trust us to help you achieve your highest sustainability goals, especially as they pertain to LEED. As a LEED Proven Provider® our methods for documenting and earning LEED credits have been perfected over time and are trusted by the USGBC. So trusted in fact, we are the only 3rd party consultants to have our own LEED Volume program. We have worked on over 400 LEED projects and 50 Million SF of commissioning, retro-commissioning, energy auditing, ENERGY STAR, and energy modeling projects. Most companies do not offer both LEED consulting and the engineering services required for some of the prerequisites and credits each project must earn, but we do. As a bonus, we have expertise in training professionals like yourself on how to pass your LEED exams and save energy at your property. We are a full-service LEED and green building consulting firm offering our clients support with LEED®, ENERGY STAR®, GRESB®, Green Globes®, Earth Craft®, and more!

Have a question?

Our Services

LEED Training

SIG provides comprehensive training on a wide range of sustainability topics. We have developed many standard training courses and provide customized programs to meet the objectives and interests of your specific audience.


LEED Consulting

With offices in Atlanta, GA, Boulder, CO, Minneapolis, MN, New York, NY, and San Francisco, CA, SIG is a green building consulting firm whose team members bring years of experience in LEED, design-build commercial construction, real estate development, business efficiencies, and eco training.

LEED Engineering

SIG has in-house Technical Services Staff that hold credentials like PE, CxA, CEM, CPMP, LEED AP, and more. Our engineers have extensive Retro-Cx, LEED prerequisite, Energy Audit, and ENERGY STAR experience.



How Green Buildings Reduce Carbon Dioxide 

As the serious consequences of climate change have been better understood by modern climate models, focus has rested on the reduction in overall carbon dioxide emissions. While the effects of carbon dioxide on the climate are taught in most schools in the United States, and the pictures of the so-called “greenhouse effect” on climate are […]
Read More »

Easy ways to make your building healthier – strategies from the WELL Building Standard

By Michael Cichetti, WELL AP Sustainable Investment Group (SIG) Health and Wellness seems to be quite the buzzword these days. Personally, I love my Fitbit which has helped me lose 19 lbs over the last two months. McKinsey and Company has said that wellness is the next trillion-dollar industry, and considering how many people are […]
Read More »