Founded in 1996, the National Service Alliance (NSA) is a coalition of independent
building service contractors that came together to leverage their purchasing power and
industry know-how. With a strong focus on ensuring that members reduce overall expenses
on industry best-in-class products and services, the NSA is the industry’s leading group purchasing organization (GPO) for BSCs. NSA is headquartered in Charlotte, NC. For
more information visit www.nansa.org.