Sustainable Investment Group, LLC (SIG) is a full-service sustainable building consulting firm that provides environmentally focused solutions to design, construction, and real estate operations professionals to support a high level of performance, value, and quality in the built environment. SIG offers Energy Audits, LEED and WELL Building Consulting, Commissioning, ENERGY STAR verifications, GRESB consulting, and other technical services. SIG also helps grow the green building industry through education and training, having helped over 12,000 professionals across the U.S. prepare for their LEED and WELL AP exams. Locations: Atlanta, GA | Austin, TX | Boulder, CO | Detroit, MI | Fairfield, IA | Los Angeles, CA | Minneapolis, MN | New York, NY | Peoria, IL | Phoenix, AZ | Portland, OR | San Francisco, CA |The firm is comprised of LEED Accredited Professionals, Architects, and Professional Engineers with design, construction, commissioning, property management, & real estate backgrounds. SIG is also an ENERGY STAR Service & Product Provider (SPP), a 2016 and 2017 ENERGY STAR Partner of the Year, an Elite Member of ENERGY STAR Certification Nation, and a USGBC LEED Proven Provider.Our growing team, while staying focused on the triple bottom line, provides the following proven consulting services: • LEED and WELL Building Feasibility Studies• ENERGY STAR Benchmarking & PE Sign-Offs• LEED Consulting (BD+C, O+M, ID+C, Schools, Multifamily, & ND)• ASHRAE Level I Energy Audits• Fundamental & Enhanced Commissioning • Retro-Commissioning (RCx) (Existing Buildings)• Corporate Sustainability Consulting • ISO 14001 Guidance• Green Globes ConsultingIn Spring 2024 SIG joined the TÜV SÜD America family of companies.