Founded in 1962, Mazzetti Nash Lipsey Burch (M+NLB), a merger of Mazzetti & Associates and Nash Lipsey Burch, is a nationwide, full-service consulting and design firm focused on the engineered systems of buildings, including HVAC, plumbing, fire protection, process piping, technology, lighting, and power systems. Apart from traditional design services, we provide consultation and support in facility planning, commissioning, energy management, climate change consulting, equipment planning and procurement, and low voltage and information technologies.
Headquartered in San Francisco, with additional offices in Irvine and Sacramento, California; Portland, Oregon; Denver, Colorado; Nashville, Tennessee; Baton Rouge, Louisiana; and Houston, Texas, M+NLB employs 160 professionals firmwide. M+NLB focuses on developing expertise in four main markets: healthcare, mission critical, laboratory, and higher education facilities.
Organizations such as Kaiser Permanente, Oregon Health & Science and Stanford Universities, Hospital Corporation of America, JP Morgan Chase, and University of California Medical Centers, look to M+NLB for the provision of not only high-caliber MEPT services, but the ability to proactively coordinate those services with other design and construction professionals to provide the most cost-effective, functional, and technologically flexible facilities possible.

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