Performance Environmental Services, LLC (PES), New Haven, Connecticut, joined National Service Alliance, a purchasing organization for building service contractors in Mooresville, North Carolina.

PES is a privately owned building services company that has been providing consistent, high quality and cost effective janitorial and maintenance services since 1990. The company operates statewide in Massachusetts, Connecticut and Rhode Island, serving a diverse range of clients including commercial office, educational, financial, industrial/ manufacturing, retail, medical and commercial residential.

By becoming a member, PES receives national pricing on cleaning products and services, engage in brainstorming sessions, and collaborate on development of new technology.