Established 35 years ago, Grumman/Butkus Associates is a consulting engineering firm that specializes in mechanical, electrical and plumbing design services and energy and resource consulting for buildings. Based in Evanston, Ill., the company offers analytical, design, commissioning and Leed consulting services. The analytical services include mechanical/electrical building systems, energy management, computerized evaluations and training programs. The design services include mechanical and electrical systems. Leed consulting services of Grumman/Butkus Associates include building energy modeling, fundamental and enhanced commissioning and design. Its featured projects include boiler and chiller plant installation and thermal energy storage. It caters to the health care, commercial, government, education, hotels, industrial and science and technology markets.