Founded in 1962, Mazzetti Nash Lipsey Burch (M+NLB) was formed as a result of the merger of Mazzetti & Associates and Nash Lipsey Burch. It is a full-service consulting and design firm focused on the engineered systems of buildings, including plumbing, fire protection, process piping, lighting, power systems, and heating, ventilating and air conditioning (HVAC). Apart from traditional design services, the company also provides consultation and support in facility planning, commissioning, climate change consulting, equipment planning/procurement, energy management and information technologies. It collaborates with leading organizations, including Lawrence Berkeley National Laboratory, National Renewable Energy Laborary and the National Institutes of Health. Mazzetti Nash Lipsey Burch has over 160 employees.