Sustainable Investment Group - A full-service national LEED solutions provider. LEED consulting, engineering, and training all in-house. Sustainable Investment Group
  • ENERGY STAR Partner of the Year 2021 logo over photo of atlanta skyline at piedmont park, ENERGY STAR, ENERGY STAR Partner of the Year

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®, WELL®, Fitwel®, ENERGY STAR®, GRESB®, Green Globes®, Earth Craft®, and more!

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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.

Energy 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.



New Jobs on the Rise: Green and Sustainability Careers

By: Devin Takekawa Engineering Analyst Intern – SIG Edited by: Emily Culling In the US, concern surrounding anthropogenic climate change is growing, alongside increased interest to learn about environmental sustainability (1). While many champion individual action, such as recycling or purchasing electric vehicles, collective action and structural changes, such as total decarbonization, are necessary. There […]
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Earth and Climate Documentaries

Earth and Climate Documentaries You Should Watch This Summer (Or Anytime!) By Grace Wang Sustainability Analyst Sustainable Investment Group (SIG) When it is hot outside and the only thing you want (or can do) is sit indoors and stay out of the heat, putting on a documentary is one of many ways to pass the […]
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