We do more than just “consult”. We have a team of project managers that comprehensively “manage” sustainability certifications day in and day out. SIG does not just tell you what to do or how to do it; we take the ball and run with it. Our goal is to make it as easy as possible for our clients to attain their sustainability goals. All the while, our engineers complement our project management with design, operation, and energy-efficiency expertise to make your buildings better.

LEED Volume

What is LEED Volume? How can our LEED Volume program reduce your USGBC fees and shorten your timeline for certification? SIG’s LEED Volume offers our clients a unique opportunity to simplify the LEED process while saving capital and expense dollars.  Large Commercial Real Estate owners across the globe have invested time, resources, and capital in… more info

LEED Performance Path

Everything you need to know about Arc and LEED Performance Path What is LEED Performance Path? There still is a lot of confusion about LEED Performance Path and LEED Dynamic Plaque (LDP) because LDP only lasted about a year or so before it was replaced with LEED Performance Path (LPP).  To be crystal clear, LDP… more info


SIG’s LEED New Construction (LEED NC) consultants possess the necessary skill and practical knowledge to achieve any and all sustainability goals.  Our team’s extensive experience includes design, construction, and project management experience.  We have provided LEED Consulting for LEED NC: BD+C, CS, CI, and EB: O+M projects (over 400 total LEED projects certified).  SIG can… more info

LEED For Existing Buildings (LEED EB: O+M)

Existing Buildings are our specialty! The Greenest Buildings Are Those That Are Already Built The first step in considering LEED for your property is a LEED Gap Analysis, in which Sustainable Investment Group (SIG) experts will present the findings of our research to let you know what it will take to get to LEED certification.… more info

LEED NC: Core + Shell

LEED NC: Core + Shell certification is very similar to LEED NC: BD+C certification. The process is almost exactly the same, but there are two key differences. First, for a project to be eligible for LEED Core + Shell certification, only up to 40% of the interior can be built out at the time of… more info


LEED ID+C stands for Interior Design and Construction. This LEED rating system (also know as LEED for Commercial Interiors (LEED CI) can be applied to just about any interior build-out that is being built for the first time or renovated.  For example, our single-floor office space headquarters inside of a 7-story office building received LEED for Commercial… more info

WELL Building Standard

SIG Consulting Services for WELL Building Certification SIG has been an early adopter (and promoter) of the WELL Building Standard. We have three WELL AP’s in-house and one WELL Faculty, which is very rare experience. We have a very strong relationship with both Delos and the IWBI. Currently, our green building consulting firm is providing… more info


What is Fitwel? Fitwel is a building rating system for commercial interiors and both multi-tenant and single-tenant existing buildings that provides guidelines on how to design and operate healthier buildings.  Fitwel can also be used as a roadmap to aid the design of new buildings being constructed.  As green building consultants, we are always tapping… more info

WELL Building Standard

WELL is not an acronym, but it does stand for something.  WELL represents health and wellness in the built environment. The WELL Building Standard is the leading rating system for designing and operating healthy buildings. There are a lot of things you can incorporate into the design and construction of a building that will result in healthier… more info