Contact Us Sustainable Investment Group
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    Sustainable Investment Group (SIG), the premier resource for sustainability in commercial real estate.

    Sustainable Investment Group's Most Popular Services:
    • Performance Benchmarking / ENERGY STAR
    • Commissioning / RCx
    • LEED Consulting
    • Sustainability Reporting
    • LEED Exam Preparation
    • Continuing Education Credits
    • Lunch and Learns

    For more information about our services, or if you would like to schedule a LEED Exam Prep Class, please contact Michael Friedman 404­-343-­3835 or

    Sustainable Investment Group (SIG)
    Atlanta Headquarters
    5607 Glenridge Drive, NE
    Suite 250
    Atlanta, GA 30342

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Sustainable Investment Group (SIG)

Atlanta | Boulder | Los Angeles | Minneapolis | New York | San Francisco

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“Working with SIG for the last three years has been a great experience that has resulted in an exceptional working relationship, improved building operational performance, and, through their guidance, becoming the world’s largest LEED certified convention center.”


Timothy Trefzer

Sustainability Manager

Georgia World Congress Center Authority

Atlanta, GA

List of top 50 clients sustainable investment group has done business with

SIG is your one-stop shop for all sustainability needs when building a partnership with the environment so please contact us now for your free consultation. Let us help guide your progress and design win-win solutions for people, the planet, and your profit.

As the premier sustainability resource in North America, SIG can be trusted to bring you up to speed on the latest emerging trends. We make it our priority to master new rating systems and bring you the most streamlined professional services to enhance your built environment.

Sustainable Investment Group’s Trending Services for 2016:
• Energy Benchmarking (Local Law) Compliance
• ENERGY STAR Benchmarking and Verification
• LEED Consulting (New and Existing Buildings)
• LEED Volume Certification
• Well Building Certification
• ASHRAE Energy Audits
• Commissioning and Retro-commissioning
• Energy Modeling

Got a great idea, and not sure how to execute it? We love solving those problems. If evolving your commercial property into a sustainable oasis is part of your vision, SIG will be your best partner. We’ll get you the training you need, layout a path for success, and crunch all the numbers. For more information about how you can design, build, and operate your buildings greener, please contact us now. We look forward to working with you!