SIG  - A Company of TÜV SÜD

Sustainable Investment Group, LLC (SIG) is a full-service sustainability consulting firm that provides environmentally focused solutions to design, construction, real estate, and building operations professionals to support a high level of performance, value, and quality in the built environment. SIG offers Energy Audits, LEED Consulting, Commissioning, and other technical consulting services. SIG also helps grow the green building industry through education and training, having helped over 15,000 professionals across the U.S. prepare for their LEED exams.