Whole Building Systems, LLC (WBS), established in 2010, is a best in class high performance building consultancy specializing in the planning, design, modeling, auditing, assessing, commissioning, operations and maintenance of buildings and their energy using systems. WBS' consultants are thought leaders and subject matter experts with backgrounds in engineering, strategic planning, preservation, construction, architecture and design. WBS uses new technologies and analytic tools such as Building Information Modeling (BIM) and process change strategies to assist clients in improving the performance of new and existing buildings including historic structures.